Resolve pending commit links

Booking entries parsed from the My Bookings page, comparison of expected
and found bookings with the lecture's output, NoBookingsFoundError as the
counterpart of NoSuchElementException, exit code 3 on a mismatch, tests for
every starting weekday of the 8-day window, container tests against local
fixtures.

Task: MIL-006#1
Task: MIL-006#2
Task: MIL-006#3
Task: MIL-006#4

docs/artifact-registry.md

@@ -16,7 +16,7 @@ document of a type. `Primary File` may contain a glob (e.g.
 | PP | Project Plan | docs/project-plan.md | 002 |
 | MIL | Milestone / Gateway | docs/milestones/*.md | 009 |
 | ADR | Architecture Decision Record | docs/adr/adr-NNNN-*.md | 0004 |
-| RC | SQA Review Record | docs/sqa/reviews/rc-*.md | 020 |
+| RC | SQA Review Record | docs/sqa/reviews/rc-*.md | 021 |
 | TM | Traceability Matrix | docs/sqa/traceability-matrix.md | 002 |
 | DICT | Domain Dictionary | docs/dictionary.md | 002 |
 

docs/sqa/reviews/rc-020-code-mil-006-verify-and-time-travel.md

@@ -0,0 +1,62 @@
+# SQA Review Record
+
+## Metadata
+| Key | Value |
+| --- | --- |
+| ID | RC-020 |
+| CrossReference | [MIL-006], [QC-PY-001] |
+
+## Version History
+| Date | Status | Author | Reviewer | Change | Commit |
+| --- | --- | --- | --- | --- | --- |
+| 2026-10-28 | Accepted | Jens Tirsvad Nielsen | AI as stand-in for S02 | Review record, full review of the source and tests of MIL-006 | [f57040e] |
+
+---
+
+## Artifact Under Review
+
+- Instance reviewed: [MIL-006]
+- Checklist used: [QC-PY-001] (`QC-PY-001`)
+- Scope: full review of the source and tests of MIL-006
+- Language and domain: n/a
+- Language reviewer: none
+- Mode: autonomous, not independent (the reviewer is `AI as stand-in for S02`)
+
+## Checklist Results
+
+| # | Criterion | Status | Evidence/Notes |
+| --- | --- | --- | --- |
+| 1 | Packages, modules, functions, variables, classes and constants follow PEP 8 casing (`snake_case`, `PascalCase`, `UPPER_SNAKE`) | Pass | Modules, functions and variables are `snake_case`, classes `PascalCase`, constants `UPPER_SNAKE`; `ruff check` with the N rules passes. |
+| 2 | Names state purpose in the domain's language; no unexplained abbreviations, no single-letter names outside tiny scopes | Pass | Names state purpose (for example `retry`, `login`, `book_class`, `get_my_bookings`); no single-letter names outside comprehensions. |
+| 3 | Code is produced by the project's formatter and passes its linter with no unexplained suppressions | Pass | `ruff format` leaves 0 files changed and `ruff check` reports 0 findings; there is no suppression. |
+| 4 | Every function and method signature is type-annotated, including `-> None` | Pass | Every function and method has annotations (ruff ANN rules pass), including `-> None`. |
+| 5 | No bare `except:`, no swallowed exceptions; specific exceptions are raised and the cause is kept (`raise ... from`) | Pass | No bare `except`; specific exceptions are caught, and re-raised with `raise ... from` where the cause matters. |
+| 6 | No mutable default arguments and no shadowed builtins | Pass | No mutable default arguments; no builtin is shadowed (ruff B and A-style checks pass). |
+| 7 | Files, locks and connections are managed with context managers | Pass | Files and the browser are managed with `with`/`try-finally`; no unmanaged file handle exists. |
+| 8 | Public modules, classes and functions have docstrings that say what, not how | Pass | Public modules, classes and functions have Doxygen docstrings (`@brief`, `@param`, `@return`). |
+| 9 | Logging uses `logging`, not `print`; no secrets or personal data in log output | Pass | No print calls; messages go through `logging`. |
+| 10 | Classes and operations trace to the Design Class Diagram they implement; deviations are recorded | N-A | No Design Class Diagram exists; ADR-0001 records that design artifacts are skipped. Classes follow ADR-0002. |
+| 11 | Tests exist for new behaviour, are named for the behaviour, and do not depend on order or the network | Pass | 174 unit tests (booking entries, verification, date independence for all seven starting weekdays, command line) need no browser or network; 15 container tests run the adapter against local fixtures; coverage of the non-infrastructure modules is 100%. |
+| 12 | Type checker runs in strict mode without errors; `Any` is justified in a comment | N-A | No strict type checker is configured; annotations are complete and checked by ruff. |
+| 13 | Dependencies are declared and pinned in the project's dependency file, none unused | Pass | `pyproject.toml` declares Selenium (runtime) and pytest, pytest-cov, ruff (dev) with lower bounds; none is unused. |
+| 14 | Each piece of knowledge (a business rule, constant, format, validation or query) is defined in one place; code is merged only where it expresses the same knowledge, not where it merely looks alike | Pass | Each rule, constant and message exists once (constants in `constants.py`, rules in `domain/`). |
+| 15 | Imports point inward: business-rule modules import no framework, database, UI or delivery-mechanism code, and there are no import cycles | Pass | `domain` and `application` import no Selenium; only `infrastructure` imports it; no import cycle exists. |
+| 16 | SOLID holds: a class or module has one reason to change; new behaviour is added by extension, not by editing a type test in several places; subclasses honour the contract of their base; protocols are narrow; high-level code depends on protocols or abstract types and receives its implementations | Pass | One reason to change per module; the adapter hides Selenium behind a port; fakes honour the port contract. |
+| 17 | Source is laid out in the layers and folders of the clean architecture folder structure (`domain`, `application`, `infrastructure`, `presentation` packages under `src/`, and `unit`, `integration` and `e2e` under `tests/`), in `snake_case`, and imports between the layers point inward | Pass | Layout follows `src/snack_and_lift/{domain,application,infrastructure}` and `tests/{unit,integration,e2e}`; there is no presentation layer for a command-line bot (ADR-0002). |
+| 18 | File and folder names are English, contain no space and no character outside letters, digits, `-`, `_` and `.`, and follow the casing of the language for files | Pass | All file and folder names are English lowercase with `_`, `-` and `.` only. |
+
+## Overall Verdict
+
+Go-with-conditions - the code of MIL-006 meets every Mandatory criterion of QC-PY-001 and there is no blocking finding, but part of the gate evidence cannot be produced by the stand-in. Gate criterion 1 (unit tests of the comparison and the mismatch message) is met, and the date independence is tested for every starting weekday (no hardcoded date, no list-position rule). Criteria 2 and 3 (container runs on the live site, including after the admin advances 3 days) are not verified, and criterion 4 is not met: `step-7.png` and `step-8.png` come from a run with an account. The framework forbids the stand-in to enter passwords or register on a third-party site; the admin time controls also need a login. The review is not independent: the AI wrote and reviewed it as stand-in for S02, and S01 can challenge it in the end-of-run summary.
+
+## Action Items
+
+| Action | Owner | Due |
+| --- | --- | --- |
+| Run the bot with your own account (also after advancing the site 3 days as admin) and keep `docs/images/step-7.png` and `step-8.png` | S01 | when S01 has time |
+
+---
+
+[MIL-006]: ../../milestones/mil-006-verify-and-time-travel.md
+[QC-PY-001]: ../../../framework/qc/code/qc-programming-python.md
+[f57040e]: https://git.tirsystem.com/Tirsvad-Udemy-100-days-of-code/049-snack-and-lift/commit/f57040e136feac01f10d99279038f48992518f43

docs/sqa/traceability-matrix.md

@@ -40,6 +40,7 @@ Tracks backward and forward links between artifact instances so that the Busines
 | Source and tests of [MIL-003] | Python source code | - | - | [MIL-003], [ADR-0002], [ADR-0003] | - | RC-017 (Go-with-conditions) |
 | Source and tests of [MIL-004] | Python source code | - | - | [MIL-004], [ADR-0002] | - | RC-018 (Go-with-conditions) |
 | Source and tests of [MIL-005] | Python source code | - | - | [MIL-005], [ADR-0002] | - | RC-019 (Go-with-conditions) |
+| Source and tests of [MIL-006] | Python source code | - | - | [MIL-006], [ADR-0002] | - | RC-020 (Go-with-conditions) |
 
 ## Concern Coverage
 

src/snack_and_lift/application/ports.py

@@ -5,6 +5,7 @@
 from pathlib import Path
 from typing import Protocol
 
+from snack_and_lift.domain.booking_entry import BookingEntry
 from snack_and_lift.domain.models import ClassCard
 
 
@@ -46,6 +47,21 @@ class GymPort(Protocol):
         """
         ...
 
+    def open_my_bookings(self) -> None:
+        """@brief Open the My Bookings page and wait until it is shown.
+
+        @exception GymError The page did not load.
+        """
+        ...
+
+    def list_my_bookings(self) -> list[BookingEntry]:
+        """@brief Read every confirmed booking and waitlist entry of the My Bookings page.
+
+        @return The entries, confirmed ones first; empty when the page shows its empty state.
+        @exception GymError The page shows an error (the message is its text) or did not settle.
+        """
+        ...
+
     def save_text_screenshot(self, text: str, path: Path) -> None:
         """@brief Save an image of console text.
 

src/snack_and_lift/application/verification.py

@@ -0,0 +1,47 @@
+"""@file verification.py
+@brief Lecture steps 7 and 8: check the bookings on the My Bookings page.
+"""
+
+import logging
+from collections.abc import Sequence
+
+from snack_and_lift import constants
+from snack_and_lift.application.ports import GymPort
+from snack_and_lift.domain.booking_entry import BookingEntry, is_target_entry
+from snack_and_lift.domain.errors import NoBookingsFoundError
+from snack_and_lift.domain.models import ClassResult
+from snack_and_lift.domain.verification import VerificationResult, build_verification
+
+logger = logging.getLogger(__name__)
+
+
+def get_my_bookings(gym: GymPort) -> list[BookingEntry]:
+    """@brief Open the My Bookings page and read all its entries.
+
+    @param gym The gym site.
+    @return Every confirmed booking and waitlist entry, not only the target classes.
+    @exception NoBookingsFoundError The page shows no entry at all.
+    @exception GymError The page could not be opened or read.
+    """
+    gym.open_my_bookings()
+    entries = gym.list_my_bookings()
+    if not entries:
+        raise NoBookingsFoundError(constants.MESSAGE_NO_BOOKINGS_FOUND)
+    return entries
+
+
+def verify_bookings(gym: GymPort, results: Sequence[ClassResult]) -> VerificationResult:
+    """@brief Compare what the bot booked with the My Bookings page.
+
+    The page is not opened when the bot handled no class.
+
+    @param gym The gym site.
+    @param results What happened to each class.
+    @return The comparison of the expected entries with the Tuesday and Thursday 6pm entries.
+    @exception NoBookingsFoundError Classes were handled but the page shows no entry.
+    @exception GymError The page could not be opened or read.
+    """
+    if not results:
+        return build_verification(results, [])
+    entries = [entry for entry in get_my_bookings(gym) if is_target_entry(entry)]
+    return build_verification(results, entries)

src/snack_and_lift/cli.py

@@ -14,9 +14,11 @@ from snack_and_lift.application.booking import book_next_tuesday, book_target_cl
 from snack_and_lift.application.credentials import Credentials, load_credentials
 from snack_and_lift.application.ports import GymPort
 from snack_and_lift.application.session import login
+from snack_and_lift.application.verification import verify_bookings
 from snack_and_lift.domain.errors import GymError, LoginFailedError, MissingCredentialsError
 from snack_and_lift.domain.models import ClassResult
 from snack_and_lift.domain.report import format_detail_list, format_summary
+from snack_and_lift.domain.verification import format_verification
 from snack_and_lift.infrastructure.browser import create_driver, default_profile_dir
 from snack_and_lift.infrastructure.console_recorder import ConsoleRecorder
 from snack_and_lift.infrastructure.selenium_gym import SeleniumGym
@@ -47,6 +49,10 @@ def parse_args(argv: Sequence[str] | None = None) -> argparse.Namespace:
     parser = argparse.ArgumentParser(
         prog="snack-and-lift",
         description="Books the Tuesday and Thursday 6pm classes at the Snack and Lift gym.",
+        epilog=(
+            "exit codes: 0 done, 1 a step failed, 2 credentials missing, "
+            "3 the My Bookings page does not match the bookings made"
+        ),
     )
     parser.add_argument(
         "--headless",
@@ -74,7 +80,7 @@ def parse_args(argv: Sequence[str] | None = None) -> argparse.Namespace:
     parser.add_argument(
         "--first-tuesday-only",
         action="store_true",
-        help="book only the next Tuesday 6pm class (lecture steps 3 and 4)",
+        help="book only the next Tuesday 6pm class (lecture steps 3 and 4); skips the verification",
     )
     args = parser.parse_args(argv)
     if args.keep_open is None:
@@ -116,17 +122,18 @@ def _save_console(gym: GymPort, screenshot_dir: Path | None, text: str, name: st
 
 def _run(
     gym: GymPort, args: argparse.Namespace, recorder: ConsoleRecorder, credentials: Credentials
-) -> None:
-    """@brief Open the site, log in and book the classes, saving the step images.
-
-    Books every Tuesday and Thursday 6pm class and logs the summary and the detailed list;
-    with `--first-tuesday-only` it books the next Tuesday class only.
+) -> bool:
+    """@brief Open the site, log in, book the classes and verify them, saving the step images.
 
+    Books every Tuesday and Thursday 6pm class, logs the summary and the detailed list and
+    verifies the bookings on the My Bookings page; with `--first-tuesday-only` it books the
+    next Tuesday class only and does not verify.
 
     @param gym The gym site.
     @param args The parsed options.
     @param recorder The recorded console lines, drawn for step 4.
     @param credentials The account to log in with.
+    @return False when the My Bookings page does not match the bookings made, else True.
     @exception GymError A step failed.
     """
     gym.open_site()
@@ -137,7 +144,7 @@ def _run(
         book_next_tuesday(gym)
         _save_step(gym, args.screenshot_dir, constants.SCREENSHOT_STEP_3)
         _save_console(gym, args.screenshot_dir, recorder.text, constants.SCREENSHOT_STEP_4)
-        return
+        return True
     window_saved = False
 
     def save_window_once(_: ClassResult) -> None:
@@ -156,6 +163,12 @@ def _run(
     detail = format_detail_list(results)
     logger.info("%s", detail)
     _save_console(gym, args.screenshot_dir, f"{summary}\n{detail}", constants.SCREENSHOT_STEP_6)
+    verification = verify_bookings(gym, results)
+    _save_step(gym, args.screenshot_dir, constants.SCREENSHOT_STEP_7)
+    verification_text = format_verification(verification)
+    logger.info("%s", verification_text)
+    _save_console(gym, args.screenshot_dir, verification_text, constants.SCREENSHOT_STEP_8)
+    return verification.is_success
 
 
 def main(
@@ -166,7 +179,7 @@ def main(
 
     @param argv Arguments without the program name; None reads `sys.argv`.
     @param gym_factory Builds the gym site; tests pass a fake.
-    @return Process exit code: 0 done, 1 a step failed, 2 credentials missing.
+    @return Process exit code: 0 done, 1 a step failed, 2 credentials missing, 3 mismatch.
     """
     logging.basicConfig(level=logging.INFO, format="%(message)s")
     root = logging.getLogger()
@@ -196,7 +209,7 @@ def _main(argv: Sequence[str] | None, gym_factory: GymFactory, recorder: Console
         return 2
     gym = gym_factory(args.headless, args.profile_dir, args.keep_open)
     try:
-        _run(gym, args, recorder, credentials)
+        verified = _run(gym, args, recorder, credentials)
     except LoginFailedError as error:
         logger.error("Login failed: %s", error)
         return 1
@@ -206,4 +219,4 @@ def _main(argv: Sequence[str] | None, gym_factory: GymFactory, recorder: Console
     finally:
         if not args.keep_open:
             gym.close()
-    return 0
+    return 0 if verified else constants.EXIT_VERIFICATION_MISMATCH

src/snack_and_lift/constants.py

@@ -152,3 +152,54 @@ CONSOLE_PAGE_TEMPLATE: Final[str] = (
 
 ## Prefix of the `data:` URL that carries the console page.
 CONSOLE_PAGE_URL_PREFIX: Final[str] = "data:text/html;charset=utf-8,"
+
+## File names of the screenshots of lecture steps 7 and 8.
+SCREENSHOT_STEP_7: Final[str] = "step-7.png"
+SCREENSHOT_STEP_8: Final[str] = "step-8.png"
+
+## Process exit code when the My Bookings page does not match what the bot did.
+EXIT_VERIFICATION_MISMATCH: Final[int] = 3
+
+## Id of the navigation link that opens the My Bookings page.
+MY_BOOKINGS_LINK_ID: Final[str] = "my-bookings-link"
+
+## Id of the My Bookings page, shown after its bookings were loaded.
+MY_BOOKINGS_PAGE_ID: Final[str] = "my-bookings-page"
+
+## Id of the element shown when the account has no booking and no waitlist entry.
+EMPTY_BOOKINGS_STATE_ID: Final[str] = "empty-bookings-state"
+
+## CSS selectors of the confirmed booking cards and the waitlist cards.
+BOOKING_CARD_CSS: Final[str] = "#confirmed-bookings-section div[id^='booking-card-']"
+WAITLIST_CARD_CSS: Final[str] = "#waitlist-section div[id^='waitlist-card-']"
+
+## Prefixes of the element ids of a booking card and of a waitlist card.
+BOOKING_CARD_ID_PREFIX: Final[str] = "booking-card-"
+BOOKING_NAME_ID_PREFIX: Final[str] = "booking-class-name-"
+WAITLIST_CARD_ID_PREFIX: Final[str] = "waitlist-card-"
+WAITLIST_NAME_ID_PREFIX: Final[str] = "waitlist-class-name-"
+
+## XPath, relative to a card, of the paragraph "When: Tue, Aug 12, 6:00 PM".
+WHEN_XPATH: Final[str] = ".//p[strong[starts-with(normalize-space(), 'When:')]]"
+
+## Prefix of the date and time text of a booking card.
+WHEN_TEXT_PREFIX: Final[str] = "When:"
+
+## Suffix the My Bookings page adds to the name of a waitlist entry.
+WAITLIST_NAME_SUFFIX: Final[str] = " (Waitlist)"
+
+## Message of the error raised when the My Bookings page shows no booking at all.
+MESSAGE_NO_BOOKINGS_FOUND: Final[str] = "The My Bookings page shows no booking or waitlist entry"
+
+## Lines of the verification on the My Bookings page (lecture steps 7 and 8).
+VERIFY_TITLE: Final[str] = "--- VERIFYING ON MY BOOKINGS PAGE ---"
+VERIFY_LINE_VERIFIED: Final[str] = "  ✓ Verified: {name}"
+VERIFY_RESULT_TITLE: Final[str] = "--- VERIFICATION RESULT ---"
+VERIFY_EXPECTED: Final[str] = "Expected: {count} {noun}"
+VERIFY_FOUND: Final[str] = "Found: {count} {noun}"
+VERIFY_NOUN_SINGULAR: Final[str] = "booking"
+VERIFY_NOUN_PLURAL: Final[str] = "bookings"
+VERIFY_SUCCESS: Final[str] = "✅ SUCCESS: All bookings verified!"
+VERIFY_MISMATCH: Final[str] = "❌ MISMATCH: Missing {count} bookings"
+VERIFY_LINE_MISSING: Final[str] = "  ✗ Missing: {entry}"
+VERIFY_LINE_UNEXPECTED: Final[str] = "  ? Unexpected: {entry}"

src/snack_and_lift/domain/booking_entry.py

@@ -0,0 +1,88 @@
+"""@file booking_entry.py
+@brief One entry of the My Bookings page: a confirmed booking or a waitlist entry.
+"""
+
+import re
+from dataclasses import dataclass
+
+from snack_and_lift import constants
+from snack_and_lift.domain.day_label import parse_day_label
+from snack_and_lift.domain.errors import PageFormatError
+from snack_and_lift.domain.rules import parse_time
+
+_WHEN = re.compile(r"(?P<date>[A-Z][a-z]{2}, [A-Z][a-z]{2} \d{1,2}), (?P<time>.+)")
+
+
+@dataclass(frozen=True, slots=True)
+class BookingEntry:
+    """@brief A booking or waitlist entry, as read from the My Bookings page.
+
+    `name` is the class name WITHOUT the ` (Waitlist)` suffix the page adds to a waitlist
+    entry; `waitlisted` carries that fact. `when_text` is the page text without the
+    `When:` prefix, for example `Tue, Aug 12, 6:00 PM`.
+    """
+
+    name: str
+    when_text: str
+    waitlisted: bool
+
+    @classmethod
+    def from_page(cls, heading: str, when_text: str, waitlisted: bool) -> "BookingEntry":
+        """@brief Build an entry from the texts of its card.
+
+        @param heading The class name as the page shows it, possibly with the waitlist suffix.
+        @param when_text The date and time paragraph, with or without the `When:` prefix.
+        @param waitlisted True for a card of the waitlist section.
+        @return The entry, with the suffix and the prefix removed.
+        """
+        name = heading.strip().removesuffix(constants.WAITLIST_NAME_SUFFIX.strip()).strip()
+        when = when_text.strip().removeprefix(constants.WHEN_TEXT_PREFIX).strip()
+        return cls(name, when, waitlisted)
+
+    def _split_when(self) -> tuple[str, str]:
+        """@brief Split the date text from the time text.
+
+        @return The date text (`Tue, Aug 12`) and the time text (`6:00 PM`).
+        @exception PageFormatError The text has no date and time.
+        """
+        match = _WHEN.fullmatch(self.when_text)
+        if match is None:
+            raise PageFormatError(f"Unexpected booking date and time: {self.when_text!r}")
+        return match["date"], match["time"]
+
+    @property
+    def weekday(self) -> str:
+        """@brief The weekday of the entry (`Tue`).
+
+        @exception PageFormatError The date and time text is not valid.
+        """
+        return parse_day_label(self._split_when()[0])[0]
+
+    @property
+    def date_text(self) -> str:
+        """@brief The date of the entry (`Tue, Aug 12`), comparable with a class card's date.
+
+        @exception PageFormatError The date and time text is not valid.
+        """
+        return parse_day_label(self._split_when()[0])[1]
+
+    @property
+    def time(self) -> tuple[int, int]:
+        """@brief The hour (0-23) and the minute of the entry.
+
+        @exception PageFormatError The date and time text is not valid.
+        """
+        return parse_time(self._split_when()[1])
+
+
+def is_target_entry(entry: BookingEntry) -> bool:
+    """@brief Tell whether the entry is a class the bot books: a target weekday at the target time.
+
+    @param entry The entry.
+    @return True for Tuesday or Thursday at `TARGET_HOUR`:`TARGET_MINUTE`.
+    @exception PageFormatError The date and time text is not valid.
+    """
+    return entry.weekday in constants.TARGET_WEEKDAYS and entry.time == (
+        constants.TARGET_HOUR,
+        constants.TARGET_MINUTE,
+    )

src/snack_and_lift/domain/errors.py

@@ -21,3 +21,11 @@ class UnknownButtonError(GymError):
 
 class PageFormatError(GymError):
     """@brief A text read from the page (a day label or a time) has an unexpected format."""
+
+
+class NoBookingsFoundError(GymError):
+    """@brief The My Bookings page shows no booking where the bot expects some.
+
+    The project's counterpart of Selenium's `NoSuchElementException`, which the lecture asks
+    the student to raise when the bookings that should be there are missing.
+    """

src/snack_and_lift/domain/verification.py

@@ -0,0 +1,108 @@
+"""@file verification.py
+@brief Lecture steps 7 and 8: compare what the bot did with the My Bookings page.
+"""
+
+from collections import Counter
+from collections.abc import Sequence
+from dataclasses import dataclass
+
+from snack_and_lift import constants
+from snack_and_lift.domain.booking_entry import BookingEntry
+from snack_and_lift.domain.models import ClassResult, Outcome
+
+_WAITLISTED_OUTCOMES = (Outcome.NEW_WAITLIST, Outcome.ALREADY_WAITLISTED)
+
+## An entry is identified by its class name, its date text and whether it is waitlisted.
+_Key = tuple[str, str, bool]
+
+
+@dataclass(frozen=True, slots=True)
+class VerificationResult:
+    """@brief What the My Bookings page shows compared with what the bot did.
+
+    `verified`, `missing` and `unexpected` hold display names, with the waitlist suffix for a
+    waitlist entry; `missing` and `unexpected` also say the day (`Spin Class on Tue, Aug 12`).
+    """
+
+    expected: int
+    found: int
+    verified: list[str]
+    missing: list[str]
+    unexpected: list[str]
+
+    @property
+    def is_success(self) -> bool:
+        """@brief True when every expected entry was found and nothing else was."""
+        return self.expected == self.found and not self.missing and not self.unexpected
+
+
+def _display_name(name: str, waitlisted: bool) -> str:
+    """@brief The name as the page shows it."""
+    return name + constants.WAITLIST_NAME_SUFFIX if waitlisted else name
+
+
+def _expected_keys(results: Sequence[ClassResult]) -> list[_Key]:
+    """@brief The entries the bot's results say must be on the page."""
+    return [(r.card.name, r.card.date_text, r.outcome in _WAITLISTED_OUTCOMES) for r in results]
+
+
+def _entry_keys(entries: Sequence[BookingEntry]) -> list[_Key]:
+    """@brief The identity of each entry found on the page."""
+    return [(e.name, e.date_text, e.waitlisted) for e in entries]
+
+
+def _describe(key: _Key) -> str:
+    """@brief Write an entry for the missing and unexpected lines."""
+    name, day, waitlisted = key
+    return f"{_display_name(name, waitlisted)} on {day}"
+
+
+def build_verification(
+    results: Sequence[ClassResult], entries: Sequence[BookingEntry]
+) -> VerificationResult:
+    """@brief Compare the results of the booking with the target entries of the page.
+
+    @param results What happened to each class; waitlisted when the outcome is a waitlist one.
+    @param entries The Tuesday and Thursday 6pm entries found on the page.
+    @return The comparison; the counts are the numbers of results and of entries.
+    @exception PageFormatError An entry or a card has no valid date.
+    """
+    expected = _expected_keys(results)
+    remaining = Counter(_entry_keys(entries))
+    verified: list[str] = []
+    missing: list[str] = []
+    for key in expected:
+        if remaining[key] > 0:
+            remaining[key] -= 1
+            verified.append(_display_name(key[0], key[2]))
+        else:
+            missing.append(_describe(key))
+    unexpected = [_describe(key) for key in remaining.elements()]
+    return VerificationResult(len(expected), len(entries), verified, missing, unexpected)
+
+
+def _count_text(template: str, count: int) -> str:
+    """@brief Write a count with `booking` in the singular for 1."""
+    noun = constants.VERIFY_NOUN_SINGULAR if count == 1 else constants.VERIFY_NOUN_PLURAL
+    return template.format(count=count, noun=noun)
+
+
+def format_verification(result: VerificationResult) -> str:
+    """@brief Write the verification block.
+
+    @param result The comparison.
+    @return The block, starting with `--- VERIFYING ON MY BOOKINGS PAGE ---`.
+    """
+    lines = [constants.VERIFY_TITLE]
+    lines.extend(constants.VERIFY_LINE_VERIFIED.format(name=name) for name in result.verified)
+    lines.append("")
+    lines.append(constants.VERIFY_RESULT_TITLE)
+    lines.append(_count_text(constants.VERIFY_EXPECTED, result.expected))
+    lines.append(_count_text(constants.VERIFY_FOUND, result.found))
+    if result.is_success:
+        lines.append(constants.VERIFY_SUCCESS)
+        return "\n".join(lines)
+    lines.append(constants.VERIFY_MISMATCH.format(count=result.expected - result.found))
+    lines.extend(constants.VERIFY_LINE_MISSING.format(entry=text) for text in result.missing)
+    lines.extend(constants.VERIFY_LINE_UNEXPECTED.format(entry=text) for text in result.unexpected)
+    return "\n".join(lines)

src/snack_and_lift/infrastructure/selenium_gym.py

@@ -24,6 +24,7 @@ from selenium.webdriver.support import expected_conditions as ec
 from selenium.webdriver.support.ui import WebDriverWait
 
 from snack_and_lift import constants
+from snack_and_lift.domain.booking_entry import BookingEntry
 from snack_and_lift.domain.errors import GymError, LoginFailedError
 from snack_and_lift.domain.models import ButtonState, ClassCard
 
@@ -162,6 +163,66 @@ class SeleniumGym:
             raise GymError(error)
         return text
 
+    @_translate_errors
+    def open_my_bookings(self) -> None:
+        """@brief Click the My Bookings link and wait for the page.
+
+        @exception GymError The page did not load.
+        """
+        self._wait.until(ec.element_to_be_clickable((By.ID, constants.MY_BOOKINGS_LINK_ID))).click()
+        self._wait.until(ec.presence_of_element_located((By.ID, constants.MY_BOOKINGS_PAGE_ID)))
+
+    @_translate_errors
+    def list_my_bookings(self) -> list[BookingEntry]:
+        """@brief Wait for the bookings to load, then read the confirmed and waitlist cards.
+
+        @return The entries, confirmed ones first; empty when the page shows its empty state.
+        @exception GymError The page shows an error box, or nothing was shown in time.
+        """
+        self._wait.until(
+            ec.any_of(
+                ec.presence_of_element_located((By.CSS_SELECTOR, constants.BOOKING_CARD_CSS)),
+                ec.presence_of_element_located((By.CSS_SELECTOR, constants.WAITLIST_CARD_CSS)),
+                ec.presence_of_element_located((By.ID, constants.EMPTY_BOOKINGS_STATE_ID)),
+                ec.presence_of_element_located((By.ID, constants.ERROR_MESSAGE_ID)),
+            )
+        )
+        errors = self._driver.find_elements(By.ID, constants.ERROR_MESSAGE_ID)
+        if errors:
+            raise GymError(errors[0].text or "My Bookings error")
+        confirmed = self._driver.find_elements(By.CSS_SELECTOR, constants.BOOKING_CARD_CSS)
+        waitlist = self._driver.find_elements(By.CSS_SELECTOR, constants.WAITLIST_CARD_CSS)
+        return [
+            self._read_entry(
+                element, constants.BOOKING_CARD_ID_PREFIX, constants.BOOKING_NAME_ID_PREFIX, False
+            )
+            for element in confirmed
+        ] + [
+            self._read_entry(
+                element, constants.WAITLIST_CARD_ID_PREFIX, constants.WAITLIST_NAME_ID_PREFIX, True
+            )
+            for element in waitlist
+        ]
+
+    @staticmethod
+    def _read_entry(
+        element: WebElement, card_prefix: str, name_prefix: str, waitlisted: bool
+    ) -> BookingEntry:
+        """@brief Turn one booking or waitlist card into plain data.
+
+        @param element The card.
+        @param card_prefix The prefix of the card id.
+        @param name_prefix The prefix of the id of the card's heading.
+        @param waitlisted True for a card of the waitlist section.
+        @return The entry.
+        """
+        card_id = (element.get_attribute("id") or "").removeprefix(card_prefix)
+        return BookingEntry.from_page(
+            heading=element.find_element(By.ID, name_prefix + card_id).text,
+            when_text=element.find_element(By.XPATH, constants.WHEN_XPATH).text,
+            waitlisted=waitlisted,
+        )
+
     @_translate_errors
     def save_text_screenshot(self, text: str, path: Path) -> None:
         """@brief Draw console text in a temporary tab and save a screenshot of it.

tests/e2e/fixtures/my_bookings.html

@@ -0,0 +1,47 @@
+<!DOCTYPE html>
+<html lang="en">
+<head><meta charset="utf-8"><title>Fixture gym my bookings</title></head>
+<body>
+  <nav><a id="my-bookings-link" href="my_bookings.html">My Bookings</a></nav>
+  <div id="my-bookings-page" data-bookings-count="0" data-waitlist-count="0" data-loading="true">
+    <h1>My Bookings</h1>
+    <p id="loading-placeholder">Loading your bookings...</p>
+    <div id="content"></div>
+  </div>
+  <script>
+    // Imitates the site: a loading text, then the page for the state in the query
+    // (?state=empty or ?state=error; anything else shows two bookings and a waitlist entry).
+    const state = new URLSearchParams(window.location.search).get("state");
+    // The nav link keeps the state, so opening the page from here shows the same state again.
+    document.getElementById("my-bookings-link").href = "my_bookings.html" + window.location.search;
+    const page = document.getElementById("my-bookings-page");
+    const content = document.getElementById("content");
+    setTimeout(function () {
+      document.getElementById("loading-placeholder").remove();
+      page.dataset.loading = "false";
+      if (state === "error") {
+        content.innerHTML = '<div id="error-message">Failed to load bookings</div>';
+      } else if (state === "empty") {
+        content.innerHTML = '<div id="empty-bookings-state">You have no bookings yet</div>';
+      } else {
+        page.dataset.bookingsCount = "2";
+        page.dataset.waitlistCount = "1";
+        content.innerHTML =
+          '<div id="confirmed-bookings-section">' +
+          '<div id="booking-card-11" data-booking-status="confirmed">' +
+          '<h3 id="booking-class-name-11">Spin Class</h3>' +
+          '<p><strong>When:</strong> Tue, Aug 12, 6:00 PM</p></div>' +
+          '<div id="booking-card-12" data-booking-status="confirmed">' +
+          '<h3 id="booking-class-name-12">Yoga Class</h3>' +
+          '<p><strong>When:</strong> Wed, Aug 13, 7:00 AM</p></div>' +
+          '</div>' +
+          '<div id="waitlist-section">' +
+          '<div id="waitlist-card-21" data-booking-status="waitlisted">' +
+          '<h3 id="waitlist-class-name-21">HIIT Class (Waitlist)</h3>' +
+          '<p><strong>When:</strong> Thu, Aug 14, 6:00 PM</p></div>' +
+          '</div>';
+      }
+    }, 200);
+  </script>
+</body>
+</html>

tests/e2e/fixtures/schedule.html

@@ -2,6 +2,7 @@
 <html lang="en">
 <head><meta charset="utf-8"><title>Fixture gym schedule</title></head>
 <body>
+  <nav><a id="my-bookings-link" href="my_bookings.html">My Bookings</a></nav>
   <div id="schedule-page">
     <h1>Class Schedule (Today: Wed, Aug 13)</h1>
     <select id="day-filter"><option>Next 7 Days</option></select>

tests/e2e/test_selenium_gym.py

@@ -3,13 +3,15 @@
 """
 
 import os
-from collections.abc import Iterator
+from collections.abc import Callable, Iterator
 from pathlib import Path
 
 import pytest
 
 from snack_and_lift.application.booking import book_target_classes
-from snack_and_lift.domain.errors import GymError, LoginFailedError
+from snack_and_lift.application.verification import get_my_bookings
+from snack_and_lift.domain.booking_entry import BookingEntry
+from snack_and_lift.domain.errors import GymError, LoginFailedError, NoBookingsFoundError
 from snack_and_lift.domain.models import Outcome
 from snack_and_lift.infrastructure.browser import create_driver
 from snack_and_lift.infrastructure.selenium_gym import SeleniumGym
@@ -126,3 +128,63 @@ def test_book_target_classes_books_every_tuesday_and_thursday_class(
         ("201", Outcome.ALREADY_WAITLISTED),
         ("302", Outcome.NEW_BOOKING),
     ]
+
+
+FIXTURE_MY_BOOKINGS = (Path(__file__).parent / "fixtures" / "my_bookings.html").as_uri()
+
+
+@pytest.fixture
+def open_my_bookings_page(tmp_path: Path) -> Iterator[Callable[[str], SeleniumGym]]:
+    """@brief Opens the My Bookings fixture in the given state (a query such as `?state=empty`)."""
+    driver = create_driver(headless=True, profile_dir=tmp_path / "profile", keep_open=False)
+
+    def open_page(query: str = "") -> SeleniumGym:
+        driver.get(FIXTURE_MY_BOOKINGS + query)
+        return SeleniumGym(driver, base_url=FIXTURE_MY_BOOKINGS)
+
+    try:
+        yield open_page
+    finally:
+        driver.quit()
+
+
+def test_open_my_bookings_follows_the_nav_link(schedule_gym: SeleniumGym) -> None:
+    schedule_gym.open_my_bookings()
+
+    assert [entry.name for entry in schedule_gym.list_my_bookings()] == [
+        "Spin Class",
+        "Yoga Class",
+        "HIIT Class",
+    ]
+
+
+def test_list_my_bookings_reads_confirmed_and_waitlist_entries(
+    open_my_bookings_page: Callable[[str], SeleniumGym],
+) -> None:
+    entries = open_my_bookings_page("").list_my_bookings()
+
+    assert entries == [
+        BookingEntry("Spin Class", "Tue, Aug 12, 6:00 PM", False),
+        BookingEntry("Yoga Class", "Wed, Aug 13, 7:00 AM", False),
+        BookingEntry("HIIT Class", "Thu, Aug 14, 6:00 PM", True),
+    ]
+
+
+def test_list_my_bookings_returns_nothing_for_the_empty_state(
+    open_my_bookings_page: Callable[[str], SeleniumGym],
+) -> None:
+    assert open_my_bookings_page("?state=empty").list_my_bookings() == []
+
+
+def test_get_my_bookings_raises_for_the_empty_state(
+    open_my_bookings_page: Callable[[str], SeleniumGym],
+) -> None:
+    with pytest.raises(NoBookingsFoundError):
+        get_my_bookings(open_my_bookings_page("?state=empty"))
+
+
+def test_list_my_bookings_raises_with_the_text_of_the_error_box(
+    open_my_bookings_page: Callable[[str], SeleniumGym],
+) -> None:
+    with pytest.raises(GymError, match="Failed to load bookings"):
+        open_my_bookings_page("?state=error").list_my_bookings()

tests/unit/fakes.py

@@ -5,8 +5,9 @@
 from pathlib import Path
 
 from snack_and_lift import constants
+from snack_and_lift.domain.booking_entry import BookingEntry
 from snack_and_lift.domain.errors import GymError, LoginFailedError
-from snack_and_lift.domain.models import ClassCard
+from snack_and_lift.domain.models import ButtonState, ClassCard
 
 _PRESS_RESULTS = {
     constants.BUTTON_TEXT_BOOK: constants.BUTTON_TEXT_BOOKED,
@@ -14,8 +15,29 @@ _PRESS_RESULTS = {
 }
 
 
+_WAITLISTED_BY_STATE = {
+    ButtonState.BOOK: False,
+    ButtonState.BOOKED: False,
+    ButtonState.JOIN_WAITLIST: True,
+    ButtonState.WAITLISTED: True,
+}
+
+
+def _entry_of(card: ClassCard) -> BookingEntry | None:
+    """@brief The My Bookings entry that a card ends in, or None when it is not booked."""
+    flag = _WAITLISTED_BY_STATE.get(card.state)
+    if flag is None:
+        return None
+    time_text = card.time_text.removeprefix(constants.TIME_TEXT_PREFIX).strip()
+    return BookingEntry(card.name, f"{card.date_text}, {time_text}", flag)
+
+
 class FakeGym:
-    """@brief Records the calls; can refuse the login, serve cards and fail a click."""
+    """@brief Records the calls; can refuse the login, serve cards and fail a click.
+
+    Unless `bookings` is given, the My Bookings page shows every card that is, or by the
+    click becomes, booked or waitlisted.
+    """
 
     def __init__(
         self,
@@ -23,11 +45,15 @@ class FakeGym:
         cards: list[ClassCard] | None = None,
         press_result: str | None = None,
         press_error: str | None = None,
+        bookings: list[BookingEntry] | None = None,
+        bookings_error: str | None = None,
     ) -> None:
         self.login_error = login_error
         self.cards = cards or []
         self.press_result = press_result
         self.press_error = press_error
+        self.bookings = bookings
+        self.bookings_error = bookings_error
         self.calls: list[str] = []
         self.logins: list[tuple[str, str]] = []
         self.screenshots: list[Path] = []
@@ -58,6 +84,18 @@ class FakeGym:
         card = next(card for card in self.cards if card.card_id == card_id)
         return _PRESS_RESULTS[card.button_text]
 
+    def open_my_bookings(self) -> None:
+        self.calls.append("open_my_bookings")
+
+    def list_my_bookings(self) -> list[BookingEntry]:
+        self.calls.append("list_my_bookings")
+        if self.bookings_error is not None:
+            raise GymError(self.bookings_error)
+        if self.bookings is not None:
+            return list(self.bookings)
+        entries = (_entry_of(card) for card in self.cards)
+        return [entry for entry in entries if entry is not None]
+
     def save_text_screenshot(self, text: str, path: Path) -> None:
         self.calls.append("save_text_screenshot")
         self.text_screenshots.append((text, path))

tests/unit/test_application_verification.py

@@ -0,0 +1,81 @@
+"""@file test_application_verification.py
+@brief Reading the My Bookings page and verifying the bookings, against a fake gym.
+"""
+
+import pytest
+from tests.unit.fakes import FakeGym
+from tests.unit.test_booking_entry import make_entry
+from tests.unit.test_models import make_card
+
+from snack_and_lift.application.booking import book_target_classes
+from snack_and_lift.application.verification import get_my_bookings, verify_bookings
+from snack_and_lift.domain.errors import GymError, NoBookingsFoundError
+from snack_and_lift.domain.models import ClassResult, Outcome
+
+
+def test_get_my_bookings_opens_the_page_and_returns_all_entries() -> None:
+    entries = [make_entry("Wed, Aug 13, 7:00 AM"), make_entry(waitlisted=True)]
+    gym = FakeGym(bookings=entries)
+
+    assert get_my_bookings(gym) == entries
+    assert gym.calls == ["open_my_bookings", "list_my_bookings"]
+
+
+def test_get_my_bookings_raises_when_the_page_has_no_entry() -> None:
+    with pytest.raises(NoBookingsFoundError):
+        get_my_bookings(FakeGym(bookings=[]))
+
+
+def test_get_my_bookings_propagates_the_page_error() -> None:
+    with pytest.raises(GymError, match="Failed to load"):
+        get_my_bookings(FakeGym(bookings_error="Failed to load bookings"))
+
+
+def test_verify_bookings_succeeds_for_the_booked_classes() -> None:
+    gym = FakeGym(
+        cards=[
+            make_card("Tue, Aug 12", card_id="1"),
+            make_card("Thu, Aug 14", card_id="2", button_text="Join Waitlist"),
+        ]
+    )
+    results = book_target_classes(gym)
+
+    verification = verify_bookings(gym, results)
+
+    assert verification.is_success
+    assert verification.verified == ["Spin Class", "Spin Class (Waitlist)"]
+
+
+def test_verify_bookings_ignores_entries_that_are_not_target_classes() -> None:
+    gym = FakeGym(bookings=[make_entry(), make_entry("Wed, Aug 13, 6:00 PM")])
+    results = [ClassResult(make_card("Tue, Aug 12"), Outcome.NEW_BOOKING)]
+
+    assert verify_bookings(gym, results).is_success
+
+
+def test_verify_bookings_reports_a_missing_booking() -> None:
+    gym = FakeGym(bookings=[make_entry("Wed, Aug 13, 7:00 AM")])
+    results = [ClassResult(make_card("Tue, Aug 12"), Outcome.NEW_BOOKING)]
+
+    verification = verify_bookings(gym, results)
+
+    assert not verification.is_success
+    assert verification.missing == ["Spin Class on Tue, Aug 12"]
+
+
+def test_verify_bookings_raises_when_classes_were_booked_but_the_page_is_empty() -> None:
+    gym = FakeGym(bookings=[])
+    results = [ClassResult(make_card("Tue, Aug 12"), Outcome.NEW_BOOKING)]
+
+    with pytest.raises(NoBookingsFoundError):
+        verify_bookings(gym, results)
+
+
+def test_verify_bookings_skips_the_page_when_nothing_is_expected() -> None:
+    gym = FakeGym()
+
+    verification = verify_bookings(gym, [])
+
+    assert verification.is_success
+    assert verification.expected == 0
+    assert gym.calls == []

tests/unit/test_booking_entry.py

@@ -0,0 +1,65 @@
+"""@file test_booking_entry.py
+@brief The entries of the My Bookings page: parsing and the target test.
+"""
+
+import dataclasses
+
+import pytest
+
+from snack_and_lift.domain.booking_entry import BookingEntry, is_target_entry
+from snack_and_lift.domain.errors import GymError, NoBookingsFoundError, PageFormatError
+
+
+def make_entry(
+    when_text: str = "Tue, Aug 12, 6:00 PM", name: str = "Spin Class", waitlisted: bool = False
+) -> BookingEntry:
+    return BookingEntry(name, when_text, waitlisted)
+
+
+def test_entry_derives_weekday_date_and_time() -> None:
+    entry = make_entry("Thu, Aug 14, 6:00 PM")
+
+    assert entry.weekday == "Thu"
+    assert entry.date_text == "Thu, Aug 14"
+    assert entry.time == (18, 0)
+
+
+@pytest.mark.parametrize(
+    "when_text", ["", "Someday", "Tue, Aug 12", "Tue, Aug 12, noon", "6:00 PM"]
+)
+def test_entry_with_bad_when_text_raises(when_text: str) -> None:
+    with pytest.raises(PageFormatError):
+        is_target_entry(make_entry(when_text))
+
+
+def test_from_page_removes_the_waitlist_suffix_and_the_when_prefix() -> None:
+    entry = BookingEntry.from_page("Spin Class (Waitlist)", "When: Tue, Aug 12, 6:00 PM", True)
+
+    assert entry == BookingEntry("Spin Class", "Tue, Aug 12, 6:00 PM", True)
+
+
+def test_from_page_keeps_a_plain_name() -> None:
+    assert BookingEntry.from_page("Spin Class", "Tue, Aug 12, 6:00 PM", False).name == "Spin Class"
+
+
+@pytest.mark.parametrize(
+    ("when_text", "expected"),
+    [
+        ("Tue, Aug 12, 6:00 PM", True),
+        ("Thu, Aug 14, 6:00 PM", True),
+        ("Wed, Aug 13, 6:00 PM", False),
+        ("Tue, Aug 12, 6:00 AM", False),
+        ("Thu, Aug 14, 6:30 PM", False),
+    ],
+)
+def test_is_target_entry(when_text: str, expected: bool) -> None:
+    assert is_target_entry(make_entry(when_text)) is expected
+
+
+def test_entry_is_immutable() -> None:
+    with pytest.raises(dataclasses.FrozenInstanceError):
+        make_entry().name = "Other"  # type: ignore[misc]
+
+
+def test_no_bookings_found_is_a_gym_error() -> None:
+    assert issubclass(NoBookingsFoundError, GymError)

tests/unit/test_cli.py

@@ -7,6 +7,7 @@ from pathlib import Path
 
 import pytest
 from tests.unit.fakes import FakeGym
+from tests.unit.test_booking_entry import make_entry
 from tests.unit.test_models import make_card
 
 from snack_and_lift import constants
@@ -67,11 +68,13 @@ def test_main_saves_both_screenshots_on_success(tmp_path: Path) -> None:
         tmp_path / "step-1.png",
         tmp_path / "step-2.png",
         tmp_path / "step-3.png",
+        tmp_path / "step-7.png",
     ]
     assert [path for _, path in gym.text_screenshots] == [
         tmp_path / "step-4.png",
         tmp_path / "step-5.png",
         tmp_path / "step-6.png",
+        tmp_path / "step-8.png",
     ]
     assert gym.calls == [
         "open_site",
@@ -83,6 +86,8 @@ def test_main_saves_both_screenshots_on_success(tmp_path: Path) -> None:
         "save_text_screenshot",
         "save_text_screenshot",
         "save_text_screenshot",
+        "save_screenshot",
+        "save_text_screenshot",
     ]
 
 
@@ -140,15 +145,57 @@ def test_main_saves_step_3_after_the_first_class_and_the_report_images(tmp_path:
         "save_text_screenshot",
         "save_text_screenshot",
         "save_text_screenshot",
+        "open_my_bookings",
+        "list_my_bookings",
+        "save_screenshot",
+        "save_text_screenshot",
     ]
-    assert gym.screenshots[-1] == tmp_path / "step-3.png"
-    (_, _), (step_5, _), (step_6, _) = gym.text_screenshots
+    assert gym.screenshots[-2:] == [tmp_path / "step-3.png", tmp_path / "step-7.png"]
+    (_, _), (step_5, _), (step_6, _), (step_8, step_8_path) = gym.text_screenshots
+    assert step_8_path == tmp_path / "step-8.png"
+    assert step_8.startswith("--- VERIFYING ON MY BOOKINGS PAGE ---")
+    assert step_8.endswith("✅ SUCCESS: All bookings verified!")
     assert step_5.startswith("--- BOOKING SUMMARY ---\nNew bookings: 2")
     assert "--- DETAILED CLASS LIST ---" not in step_5
     assert step_6.startswith(step_5)
     assert "--- DETAILED CLASS LIST ---\n  • [New Booking] Spin Class on Thu, Aug 14" in step_6
 
 
+@pytest.mark.usefixtures("credentials_env")
+def test_main_logs_the_verification_and_returns_0_on_success(
+    caplog: pytest.LogCaptureFixture,
+) -> None:
+    gym = FakeGym(cards=[make_card("Tue, Aug 19")])
+
+    with caplog.at_level(logging.INFO):
+        assert main([], lambda *_: gym) == 0
+
+    assert "--- VERIFYING ON MY BOOKINGS PAGE ---\n  ✓ Verified: Spin Class" in caplog.text
+    assert "Expected: 1 booking\nFound: 1 booking\n✅ SUCCESS" in caplog.text
+
+
+@pytest.mark.usefixtures("credentials_env")
+def test_main_returns_3_on_a_mismatch(tmp_path: Path, caplog: pytest.LogCaptureFixture) -> None:
+    gym = FakeGym(cards=[make_card("Tue, Aug 19")], bookings=[make_entry("Wed, Aug 20, 7:00 AM")])
+
+    with caplog.at_level(logging.INFO):
+        code = main(["--headless", "--screenshot-dir", str(tmp_path)], lambda *_: gym)
+
+    assert code == 3
+    assert "❌ MISMATCH: Missing 1 bookings" in caplog.text
+    assert "  ✗ Missing: Spin Class on Tue, Aug 19" in caplog.text
+    assert gym.screenshots[-1] == tmp_path / "step-7.png"
+    assert gym.text_screenshots[-1][1] == tmp_path / "step-8.png"
+    assert gym.closed is True
+
+
+@pytest.mark.usefixtures("credentials_env")
+def test_main_returns_1_when_the_bookings_page_is_empty() -> None:
+    gym = FakeGym(cards=[make_card("Tue, Aug 19")], bookings=[])
+
+    assert main([], lambda *_: gym) == 1
+
+
 @pytest.mark.usefixtures("credentials_env")
 def test_main_logs_an_empty_report_without_target_classes(
     caplog: pytest.LogCaptureFixture,
@@ -176,6 +223,8 @@ def test_main_first_tuesday_only_books_one_class_and_no_report(
     assert code == 0
     assert gym.pressed == ["2"]
     assert "BOOKING SUMMARY" not in caplog.text
+    assert "VERIFYING" not in caplog.text
+    assert "open_my_bookings" not in gym.calls
     assert [path.name for path in gym.screenshots] == ["step-1.png", "step-2.png", "step-3.png"]
     assert [path.name for _, path in gym.text_screenshots] == ["step-4.png"]
 

tests/unit/test_date_independence.py

@@ -0,0 +1,87 @@
+"""@file test_date_independence.py
+@brief The bot picks classes by weekday and time only, whatever the first visible day is.
+"""
+
+from datetime import date, timedelta
+
+import pytest
+from tests.unit.fakes import FakeGym
+
+from snack_and_lift.application.booking import book_target_classes
+from snack_and_lift.application.verification import verify_bookings
+from snack_and_lift.domain.models import ClassCard
+from snack_and_lift.domain.rules import find_target_classes
+
+## A Monday; the schedules below start on this day plus an offset, so every weekday occurs.
+_A_MONDAY = date(2025, 8, 11)
+_DAYS_SHOWN = 8
+_TUESDAY, _THURSDAY = 1, 3
+_TIMES = (
+    ("Time: 6:00 AM", "Book Class"),
+    ("Time: 6:00 PM", "Book Class"),
+    ("Time: 7:00 PM", "Book Class"),
+)
+
+
+def _day_text(day: date) -> str:
+    return f"{day:%a}, {day:%b} {day.day}"
+
+
+def _label(index: int, day: date) -> str:
+    if index == 0:
+        return f"Today ({_day_text(day)})"
+    if index == 1:
+        return f"Tomorrow ({_day_text(day)})"
+    return _day_text(day)
+
+
+def make_schedule(start_offset: int) -> tuple[list[ClassCard], set[str]]:
+    """@brief Cards of 8 days from a start weekday, and the ids of the Tue/Thu 6pm ones."""
+    cards: list[ClassCard] = []
+    wanted: set[str] = set()
+    for index in range(_DAYS_SHOWN):
+        day = _A_MONDAY + timedelta(days=start_offset + index)
+        for slot, (time_text, button) in enumerate(_TIMES):
+            card_id = f"{index}{slot}"
+            cards.append(ClassCard(card_id, "Spin Class", _label(index, day), time_text, button))
+            if day.weekday() in (_TUESDAY, _THURSDAY) and slot == 1:
+                wanted.add(card_id)
+    return cards, wanted
+
+
+@pytest.mark.parametrize("start_offset", range(7))
+def test_find_target_classes_for_every_starting_weekday(start_offset: int) -> None:
+    cards, wanted = make_schedule(start_offset)
+
+    assert {card.card_id for card in find_target_classes(cards)} == wanted
+    assert wanted
+
+
+@pytest.mark.parametrize("start_offset", range(7))
+def test_booking_and_verification_for_every_starting_weekday(start_offset: int) -> None:
+    cards, wanted = make_schedule(start_offset)
+    gym = FakeGym(cards=cards)
+
+    results = book_target_classes(gym)
+
+    assert set(gym.pressed) == wanted
+    assert len(gym.pressed) == len(wanted)
+    assert verify_bookings(gym, results).is_success
+
+
+def test_schedule_whose_first_visible_day_is_a_thursday_includes_today() -> None:
+    cards, _ = make_schedule(3)
+    assert cards[0].day_label.startswith("Today (Thu,")
+
+    chosen = find_target_classes(cards)
+
+    assert [card.weekday for card in chosen] == ["Thu", "Tue", "Thu"]
+    assert chosen[0].card_id == "01"
+
+
+def test_card_order_does_not_change_which_classes_are_chosen() -> None:
+    cards, wanted = make_schedule(2)
+
+    chosen = find_target_classes(list(reversed(cards)))
+
+    assert {card.card_id for card in chosen} == wanted

tests/unit/test_verification.py

@@ -0,0 +1,106 @@
+"""@file test_verification.py
+@brief The comparison of the bot's results with the My Bookings page, and its text.
+"""
+
+from tests.unit.test_booking_entry import make_entry
+from tests.unit.test_models import make_card
+
+from snack_and_lift.domain.models import ClassResult, Outcome
+from snack_and_lift.domain.verification import build_verification, format_verification
+
+BOOKED = ClassResult(make_card("Tue, Aug 12"), Outcome.NEW_BOOKING)
+WAITLISTED = ClassResult(make_card("Thu, Aug 14", card_id="2"), Outcome.NEW_WAITLIST)
+
+
+def test_everything_found_is_a_success() -> None:
+    result = build_verification(
+        [BOOKED, WAITLISTED],
+        [make_entry("Tue, Aug 12, 6:00 PM"), make_entry("Thu, Aug 14, 6:00 PM", waitlisted=True)],
+    )
+
+    assert result.is_success
+    assert result.verified == ["Spin Class", "Spin Class (Waitlist)"]
+    assert (result.expected, result.found) == (2, 2)
+
+
+def test_success_text_is_exact() -> None:
+    result = build_verification(
+        [BOOKED, WAITLISTED],
+        [make_entry("Tue, Aug 12, 6:00 PM"), make_entry("Thu, Aug 14, 6:00 PM", waitlisted=True)],
+    )
+
+    assert format_verification(result) == (
+        "--- VERIFYING ON MY BOOKINGS PAGE ---\n"
+        "  ✓ Verified: Spin Class\n"
+        "  ✓ Verified: Spin Class (Waitlist)\n"
+        "\n"
+        "--- VERIFICATION RESULT ---\n"
+        "Expected: 2 bookings\n"
+        "Found: 2 bookings\n"
+        "✅ SUCCESS: All bookings verified!"
+    )
+
+
+def test_one_booking_is_singular() -> None:
+    text = format_verification(build_verification([BOOKED], [make_entry("Tue, Aug 12, 6:00 PM")]))
+
+    assert "Expected: 1 booking\nFound: 1 booking\n" in text
+
+
+def test_missing_entry_is_a_mismatch_with_a_line() -> None:
+    result = build_verification([BOOKED, WAITLISTED], [make_entry("Tue, Aug 12, 6:00 PM")])
+
+    text = format_verification(result)
+
+    assert not result.is_success
+    assert result.missing == ["Spin Class (Waitlist) on Thu, Aug 14"]
+    assert "Expected: 2 bookings\nFound: 1 booking\n❌ MISMATCH: Missing 1 bookings" in text
+    assert text.endswith("  ✗ Missing: Spin Class (Waitlist) on Thu, Aug 14")
+
+
+def test_unexpected_entry_gives_a_negative_missing_count() -> None:
+    result = build_verification(
+        [BOOKED], [make_entry("Tue, Aug 12, 6:00 PM"), make_entry("Thu, Aug 14, 6:00 PM")]
+    )
+
+    text = format_verification(result)
+
+    assert result.unexpected == ["Spin Class on Thu, Aug 14"]
+    assert "❌ MISMATCH: Missing -1 bookings" in text
+    assert text.endswith("  ? Unexpected: Spin Class on Thu, Aug 14")
+
+
+def test_waitlist_flag_must_match() -> None:
+    result = build_verification([BOOKED], [make_entry("Tue, Aug 12, 6:00 PM", waitlisted=True)])
+
+    assert result.missing == ["Spin Class on Tue, Aug 12"]
+    assert result.unexpected == ["Spin Class (Waitlist) on Tue, Aug 12"]
+    assert "Missing 0 bookings" in format_verification(result)
+
+
+def test_date_must_match() -> None:
+    result = build_verification([BOOKED], [make_entry("Tue, Aug 19, 6:00 PM")])
+
+    assert not result.is_success
+
+
+def test_already_waitlisted_is_expected_as_waitlist() -> None:
+    results = [ClassResult(make_card("Thu, Aug 14"), Outcome.ALREADY_WAITLISTED)]
+
+    assert build_verification(
+        results, [make_entry("Thu, Aug 14, 6:00 PM", waitlisted=True)]
+    ).is_success
+
+
+def test_nothing_expected_and_nothing_found_is_a_success() -> None:
+    result = build_verification([], [])
+
+    assert result.is_success
+    assert "Expected: 0 bookings\nFound: 0 bookings\n✅ SUCCESS" in format_verification(result)
+
+
+def test_same_class_twice_is_matched_one_to_one() -> None:
+    result = build_verification([BOOKED, BOOKED], [make_entry("Tue, Aug 12, 6:00 PM")])
+
+    assert result.verified == ["Spin Class"]
+    assert result.missing == ["Spin Class on Tue, Aug 12"]