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Author SHA1 Message Date
TirsvadandClaude Sonnet 5.5 2b9e46b81f Resolve pending commit links in review and planning documents
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
2026-10-06 20:43:23 +08:00
Tirsvad 8ef00aafaa Add SQA review records and plan MIL-004 Code Review and CI
Add RC-001 to RC-005 for the Business Case, Stakeholder Analysis and
MIL-001 to MIL-003, checked against their QC checklists, and a
traceability matrix. The reviews found a missing duration constraint in
the Business Case; BC-001 v2 adds it, and SA-001 v2 records the
sign-off. Register RC and TM in the artifact registry.

Plan MIL-004 (review the source against QC-PY-001, add a CI workflow)
as Proposed, with Business Case objective 6, a Project Plan gateway
row and a matrix entry. The milestone is not yet synced to the git host.

No issue closed: planning and review documents only, no code changed.
2026-10-06 20:42:51 +08:00
Tirsvad 1403dacf0e Merge pull request 'MIL-003: tests, Doxygen check and repository metadata' (#22) from mil-003-quality-and-publication into main
TirSystem/github-action: Sync GitHub mirror metadata / sync-metadata (push) Failing after 3s
Reviewed-on: Tirsvad-Udemy-100_days_of_code/015-coffee_machine#22
2026-10-06 13:57:11 +02:00
Tirsvad 8a0e03a6ff Add tests and publish repository metadata for MIL-003
Add 19 pytest tests covering the report, resource check, coin
processing, refunds, change, profit, make_coffee and the main loop.
Add a tests package and put the project root on the pytest path.
Doxygen output is clean. The repository description and topics were set
on the git host.

Closes #13
Closes #14
Closes #15
Closes #16
Closes #17

Task: MIL-003#1
Task: MIL-003#2
Task: MIL-003#3
Task: MIL-003#4
Task: MIL-003#5
2026-10-06 19:56:08 +08:00
Tirsvad 9b5eff7163 Merge pull request 'MIL-002: coffee machine core' (#21) from mil-002-coffee-machine-core into main
TirSystem/github-action: Sync GitHub mirror metadata / sync-metadata (push) Failing after 3s
Reviewed-on: Tirsvad-Udemy-100_days_of_code/015-coffee_machine#21
2026-10-06 13:52:17 +02:00
Tirsvad d570489a33 Implement coffee machine core for MIL-002
Add the menu, coin values, starting resources and message texts to
constants.py. Implement report, is_resource_sufficient, process_coins,
is_transaction_successful, make_coffee and the main loop. Money is
counted in whole cents. The smoke test now feeds "off" so the loop
exits.

Closes #6
Closes #7
Closes #8
Closes #9
Closes #10
Closes #11
Closes #12

Task: MIL-002#1
Task: MIL-002#2
Task: MIL-002#3
Task: MIL-002#4
Task: MIL-002#5
Task: MIL-002#6
Task: MIL-002#7
2026-10-06 19:49:49 +08:00
Tirsvad 0f26d8d91e Merge pull request 'MIL-001: README with setup, run and test instructions' (#20) from mil-001-readme into main
TirSystem/github-action: Sync GitHub mirror metadata / sync-metadata (push) Failing after 4s
Reviewed-on: Tirsvad-Udemy-100_days_of_code/015-coffee_machine#20
2026-10-06 13:45:59 +02:00
20 changed files with 859 additions and 58 deletions
+3 -1
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@@ -14,7 +14,9 @@ document of a type. `Primary File` may contain a glob (e.g.
| BC | Business Case | docs/business-case.md | 002 |
| SA | Stakeholder Analysis | docs/stakeholder-analysis.md | 002 |
| PP | Project Plan | docs/project-plan.md | 002 |
| MIL | Milestone / Gateway | docs/milestones/*.md | 004 |
| MIL | Milestone / Gateway | docs/milestones/*.md | 005 |
| RC | SQA Review Record | docs/sqa/reviews/rc-*.md | 006 |
| TM | Traceability Matrix | docs/sqa/traceability-matrix.md | 002 |
## Languages
+6 -2
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@@ -9,7 +9,8 @@
## Version History
| Date | Status | Author | Reviewer | Change | Commit |
| --- | --- | --- | --- | --- | --- |
| 2026-10-05 | Accepted | Jens Tirsvad Nielsen | S01 | Initial version | [c0c3940] |
| 2026-10-06 | Accepted | Jens Tirsvad Nielsen | S01 | Added duration constraint (RC-001 action) | [8ef00aa] |
| 2026-10-06 | Proposed | Jens Tirsvad Nielsen | S01 | Added objective 6 and scope for code review and CI | [8ef00aa] |
---
@@ -45,6 +46,7 @@ participants and for viewers browsing the repository.
3. Cover the behaviour with automated pytest tests.
4. Document how to set up a local `.venv` and run the program and tests.
5. Publish the repository with a description, topics and README.
6. Review the source code against the Python quality checklist and run the tests and code checks automatically on every push.
## Scope
@@ -55,6 +57,7 @@ participants and for viewers browsing the repository.
- `pyproject.toml`, Python `.gitignore`, `Doxyfile`, `README.md`.
- Project documents under `docs/`.
- Repository description and topics on the git host.
- A review record for the source code and a CI workflow (MIL-004).
### Out of Scope
@@ -109,6 +112,7 @@ professional project hygiene, and the goal of sharing readable solutions.
- Constants live in `constants.py`.
- Source files use Doxygen comments.
- Nothing is committed or pushed unless the user asks.
- Duration: one week, 2026-10-05 to 2026-10-12.
## Cost–Benefit Assessment
@@ -131,4 +135,4 @@ Proceed — the scope is small, well specified and delivers a reusable example.
---
[SA-001]: ./stakeholder-analysis.md
[c0c3940]: https://git.tirsystem.com/Tirsvad-Udemy-100_days_of_code/015-coffee_machine/commit/c0c3940551db0d7d96492cc734976d0436051ff9
[8ef00aa]: https://git.tirsystem.com/Tirsvad-Udemy-100_days_of_code/015-coffee_machine/commit/8ef00aafaaa193ea565f1a45238d31e963a5e05d
@@ -0,0 +1,70 @@
# MIL-004 Code Review and CI
## Metadata
| Key | Value |
| --- | --- |
| ID | MIL-004 |
| CrossReference | [BC-001] |
## Version History
| Date | Status | Author | Reviewer | Change | Commit |
| --- | --- | --- | --- | --- | --- |
| 2026-10-06 | Proposed | Jens Tirsvad Nielsen | S01 | Initial version | [8ef00aa] |
---
## Purpose
Decide whether the source code has been reviewed against the Python quality checklist and is checked automatically on every push.
## Deliverable
`RC-006` review record for the source code, fixes for its findings, a CI workflow running the tests and code checks, and a README section describing it.
## Go / No-Go Criteria
| # | Criterion (objectively checkable) | Go | No-Go |
| --- | --- | --- | --- |
| 1 | `docs/sqa/reviews/` has an RC record for the source against `QC-PY-001` | Present with a verdict | Missing |
| 2 | Every Fail in that record has a closed action item or a recorded deviation | All handled | Open Fail |
| 3 | The CI workflow runs pytest, ruff check, ruff format --check and mypy on push and pull request | All four run | Any missing |
| 4 | The latest CI run on `main` is green | Green | Red or none |
| 5 | README describes the CI and the matching local commands | Present | Missing |
## Dependencies
| Depends on | Reason |
| --- | --- |
| MIL-003 | Tests and metadata must exist before they are reviewed and automated |
## Traceability
| Business Case objective / KPI / user story | Reference |
| --- | --- |
| Objective 6 (review and CI), Objective 4 | [BC-001] |
## Ownership
| Role | Stakeholder ID (SA) |
| --- | --- |
| Owner | S01 |
| Approving reviewer | S01 |
## Target Date
2026-10-12 — inside the duration constraint in [BC-001].
## Tasks
| # | Task | Summary | Needs its own Use Case/User Story? | Reference |
| --- | --- | --- | --- | --- |
| 1 | Review source code against QC-PY-001 | Create RC-006 with `new-artifact.sh RC` for `src/` and `tests/` against `framework/qc/qc-programming-python.md`. Criterion 10 (Design Class Diagram) is N-A because no DCD exists. Every Fail becomes an action item. | No | Objective 6 |
| 2 | Fix code review findings | Fix each Fail from RC-006 under `src/` and `tests/`, or record a justified deviation in the record. If the review has no Fail, close this task without a code change. | No | Objective 6 |
| 3 | Add CI workflow | Add `.gitea/workflows/ci.yml` that sets up Python 3.13, installs `.[dev]`, and runs `pytest`, `ruff check`, `ruff format --check` and `mypy` on push and pull request. Check first that the git host has an Actions runner. | No | Objective 6 |
| 4 | Document CI in README | Add a short section to README.md saying what the CI runs and how to run the same checks locally. | No | Objective 4 |
| 5 | Update traceability matrix | Add the RC-006 review to `docs/sqa/traceability-matrix.md` and close the milestone's row there. | No | Objective 6 |
---
[BC-001]: ../business-case.md
[8ef00aa]: https://git.tirsystem.com/Tirsvad-Udemy-100_days_of_code/015-coffee_machine/commit/8ef00aafaaa193ea565f1a45238d31e963a5e05d
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@@ -4,12 +4,13 @@
| Key | Value |
| --- | --- |
| ID | PP-001 |
| CrossReference | [BC-001], [SA-001], [MIL-001], [MIL-002], [MIL-003] |
| CrossReference | [BC-001], [SA-001], [MIL-001], [MIL-002], [MIL-003], [MIL-004] |
## Version History
| Date | Status | Author | Reviewer | Change | Commit |
| --- | --- | --- | --- | --- | --- |
| 2026-10-05 | Accepted | Jens Tirsvad Nielsen | S01 | Initial version | [c0c3940] |
| 2026-10-06 | Proposed | Jens Tirsvad Nielsen | S01 | Added MIL-004 Code Review and CI | [8ef00aa] |
---
@@ -31,6 +32,7 @@ published project, within the short assignment timeline in [BC-001].
| Project Setup | [MIL-001] | 2026-10-05 to 2026-10-07 | 2026-10-07 | S01 | none | Skeleton, tooling, README | [Milestone 40] |
| Coffee Machine Core | [MIL-002] | 2026-10-08 to 2026-10-10 | 2026-10-10 | S01 | none | Working program | [Milestone 41] |
| Quality and Publication | [MIL-003] | 2026-10-11 to 2026-10-12 | 2026-10-12 | S01 | none | Tests, Doxygen, published repo | [Milestone 42] |
| Code Review and CI | [MIL-004] | 2026-10-07 to 2026-10-12 | 2026-10-12 | S01 | none | Source review record, CI workflow | |
```plantuml
@startgantt
@@ -41,6 +43,8 @@ Project starts 2026-10-05
[MIL-001 Go/No-Go] happens 2026-10-07
[MIL-002 Go/No-Go] happens 2026-10-10
[MIL-003 Go/No-Go] happens 2026-10-12
[Code Review and CI] starts 2026-10-07 and ends 2026-10-12
[MIL-004 Go/No-Go] happens 2026-10-12
@endgantt
```
@@ -53,11 +57,12 @@ Project starts 2026-10-05
| `pyproject.toml`, `.gitignore`, `Doxyfile`, README | [MIL-001] |
| Project documents | Planning, before [MIL-001] |
| Repository description and topics | [MIL-003] |
| Source code review record and CI workflow | [MIL-004] |
## Dependencies
```
MIL-001 -> MIL-002 -> MIL-003
MIL-001 -> MIL-002 -> MIL-003 -> MIL-004
```
A No-Go moves all later dates by the same amount.
@@ -66,6 +71,7 @@ A No-Go moves all later dates by the same amount.
| Risk | Impact | Mitigation |
| --- | --- | --- |
| The git host has no Actions runner | CI cannot run | Check the host first; if none, keep the workflow file and document the local commands |
| README template not supplied | README task blocked | Ask S01 for the template before the task |
| Doxygen not installed locally | Cannot verify docs | Document the install step in README |
@@ -82,7 +88,9 @@ A No-Go moves all later dates by the same amount.
[MIL-001]: ./milestones/mil-001-project-setup.md
[MIL-002]: ./milestones/mil-002-coffee-machine-core.md
[MIL-003]: ./milestones/mil-003-quality-and-publication.md
[MIL-004]: ./milestones/mil-004-code-review-and-ci.md
[Milestone 40]: https://git.tirsystem.com/Tirsvad-Udemy-100_days_of_code/015-coffee_machine/milestone/40
[Milestone 41]: https://git.tirsystem.com/Tirsvad-Udemy-100_days_of_code/015-coffee_machine/milestone/41
[Milestone 42]: https://git.tirsystem.com/Tirsvad-Udemy-100_days_of_code/015-coffee_machine/milestone/42
[c0c3940]: https://git.tirsystem.com/Tirsvad-Udemy-100_days_of_code/015-coffee_machine/commit/c0c3940551db0d7d96492cc734976d0436051ff9
[8ef00aa]: https://git.tirsystem.com/Tirsvad-Udemy-100_days_of_code/015-coffee_machine/commit/8ef00aafaaa193ea565f1a45238d31e963a5e05d
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# RC-001 Business Case Review
## Metadata
| Key | Value |
| --- | --- |
| ID | RC-001 |
| CrossReference | [BC-001], [QC-BC-001] |
## Version History
| Date | Status | Author | Reviewer | Change | Commit |
| --- | --- | --- | --- | --- | --- |
| 2026-10-06 | Proposed | Jens Tirsvad Nielsen | S01 | Initial version | [8ef00aa] |
---
## Artifact Under Review
- Instance reviewed: [BC-001] (docs/business-case.md)
- Checklist used: [QC-BC-001] (`QC-BC-001`)
- Independence: S01 is the only stakeholder and is also the recorded author, so the reviewer-is-not-author rule cannot be met. The documents were drafted by Claude on S01's behalf; S01 reviews and signs. This is a known limit of a one-person project, not a clean independent review.
## Checklist Results
| # | Criterion | Status | Evidence/Notes |
| --- | --- | --- | --- |
| 1 | ROI/Cost-Benefit analysis is quantitative, or where qualitative, is explicitly justified | Pass | Cost-Benefit table is explicitly qualitative and says why (no money involved). |
| 2 | Risks are identified with documented impact and mitigation | Pass | Three risks, each with impact and mitigation. |
| 3 | Success criteria are measurable, stating explicit targets rather than vague aspirations | Pass | Five criteria with targets and a measure each. |
| 4 | Scope explicitly separates In Scope vs Out of Scope | Pass | `### In Scope` and `### Out of Scope` are separate. |
| 5 | Stakeholders are cross-referenced to Stakeholder Analysis IDs rather than re-described inline | Pass | Stakeholders table cites S01 to S03 only; no roles are re-described. |
| 6 | Methodology and quality-standard foundation are stated explicitly (e.g. ISO/IEC 25010, Larman) | Pass | Methodology section names the framework, ISO/IEC 25010:2023 and the coding conventions. |
| 7 | Assumptions and constraints are explicit and clearly distinguished from one another | Pass | Fixed in v2: the first draft had no duration, although MIL-001 to MIL-003 and PP-001 cite one. Constraints now state 2026-10-05 to 2026-10-12. |
| 8 | Document supports executive decision-making with a clear, unambiguous recommendation | Pass | Recommendation is a single "Proceed" with a reason. |
## Overall Verdict
Go — all mandatory criteria pass. Criterion 7 first failed (missing duration constraint) and was fixed in the same change as BC-001 v2.
## Action Items
| Action | Owner | Due |
| --- | --- | --- |
| Add the duration constraint to BC-001 (done in v2) | S01 | 2026-10-06 |
---
[BC-001]: ../../business-case.md
[QC-BC-001]: ../../../framework/qc/qc-business-case.md
[8ef00aa]: https://git.tirsystem.com/Tirsvad-Udemy-100_days_of_code/015-coffee_machine/commit/8ef00aafaaa193ea565f1a45238d31e963a5e05d
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# RC-002 Stakeholder Analysis Review
## Metadata
| Key | Value |
| --- | --- |
| ID | RC-002 |
| CrossReference | [SA-001], [QC-SA-001] |
## Version History
| Date | Status | Author | Reviewer | Change | Commit |
| --- | --- | --- | --- | --- | --- |
| 2026-10-06 | Proposed | Jens Tirsvad Nielsen | S01 | Initial version | [8ef00aa] |
---
## Artifact Under Review
- Instance reviewed: [SA-001] (docs/stakeholder-analysis.md)
- Checklist used: [QC-SA-001] (`QC-SA-001`)
- Independence: S01 is the only stakeholder and is also the recorded author, so the reviewer-is-not-author rule cannot be met. The documents were drafted by Claude on S01's behalf; S01 reviews and signs. This is a known limit of a one-person project, not a clean independent review.
## Checklist Results
| # | Criterion | Status | Evidence/Notes |
| --- | --- | --- | --- |
| 1 | Power/Interest grid is filled for every stakeholder, with no gaps or unclassified entries | Pass | S01 to S03 each have power, interest and quadrant. |
| 2 | Each stakeholder is assigned a unique, stable ID (e.g. S01-S11 style) reusable for RACI assignments in other artifacts | Pass | IDs S01 to S03 are used by every other document. |
| 3 | Roles and organizational context are defined with explicit Power and Interest levels, not just narrative description | Pass | Levels are stated as High/Low in the table, with organisation and role. |
| 4 | Communication needs (channel, frequency, deliverable type) are mapped to project phases or milestones | Pass | Communication table maps each stakeholder to MIL-001 to MIL-003. |
| 5 | Conflicting stakeholder interests are identified with documented mitigation or resolution strategies | Pass | One conflict (assignment names vs testable structure) with a mitigation. |
| 6 | Stakeholder concerns are explicitly traced to Business Case objectives | Pass | Traceability table maps each stakeholder to [BC-001] objectives. |
| 7 | Primary concerns are expressed in both business language and a recognized quality-attribute mapping (e.g. FURPS+) | Pass | Each concern has a FURPS+ attribute. |
| 8 | Document is understandable and navigable by non-technical stakeholders reviewing their own entry | Pass | Plain language, short; each stakeholder can find their own row. |
## Overall Verdict
Go — all criteria pass. The Sign-Off row said `Pending review` and was updated to the Go in SA-001 v2.
## Action Items
| Action | Owner | Due |
| --- | --- | --- |
| Record the sign-off in SA-001 (done in v2) | S01 | 2026-10-06 |
---
[SA-001]: ../../stakeholder-analysis.md
[QC-SA-001]: ../../../framework/qc/qc-stakeholder-analysis.md
[8ef00aa]: https://git.tirsystem.com/Tirsvad-Udemy-100_days_of_code/015-coffee_machine/commit/8ef00aafaaa193ea565f1a45238d31e963a5e05d
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# RC-003 MIL-001 Review
## Metadata
| Key | Value |
| --- | --- |
| ID | RC-003 |
| CrossReference | [MIL-001], [QC-MIL-001] |
## Version History
| Date | Status | Author | Reviewer | Change | Commit |
| --- | --- | --- | --- | --- | --- |
| 2026-10-06 | Proposed | Jens Tirsvad Nielsen | S01 | Initial version | [8ef00aa] |
---
## Artifact Under Review
- Instance reviewed: [MIL-001] (docs/milestones/mil-001-project-setup.md)
- Checklist used: [QC-MIL-001] (`QC-MIL-001`)
- Independence: S01 is the only stakeholder and is also the recorded author, so the reviewer-is-not-author rule cannot be met. The documents were drafted by Claude on S01's behalf; S01 reviews and signs. This is a known limit of a one-person project, not a clean independent review.
## Checklist Results
| # | Criterion | Status | Evidence/Notes |
| --- | --- | --- | --- |
| 1 | A concrete deliverable is defined for every gate | Pass | Deliverable section names the concrete output. |
| 2 | Explicit Go/No-Go criteria are stated for each gate | Pass | Go/No-Go table with one checkable criterion per row. |
| 3 | Dependencies on other milestones are explicitly mapped | Pass | Dependencies table present. |
| 4 | Each milestone is traceable to a Business Case objective or KPI | Pass | Traceability cites the Business Case objectives. |
| 5 | Milestone owner and approving reviewer are identified | Pass | Ownership names S01 as owner and approving reviewer (same person; see independence note). |
| 6 | Milestone has a defined target date consistent with project constraints | Pass | Target date lies inside the duration constraint added to BC-001 in RC-001's action (2026-10-05 to 2026-10-12). Before that fix this was a Fail. |
## Overall Verdict
Go — all criteria pass. Delivery matches: issues #1 to #5 closed, PRs 19 and 20 merged.
## Action Items
| Action | Owner | Due |
| --- | --- | --- |
| None | S01 | - |
---
[MIL-001]: ../../milestones/mil-001-project-setup.md
[QC-MIL-001]: ../../../framework/qc/qc-milestones-gateways.md
[8ef00aa]: https://git.tirsystem.com/Tirsvad-Udemy-100_days_of_code/015-coffee_machine/commit/8ef00aafaaa193ea565f1a45238d31e963a5e05d
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# RC-004 MIL-002 Review
## Metadata
| Key | Value |
| --- | --- |
| ID | RC-004 |
| CrossReference | [MIL-002], [QC-MIL-001] |
## Version History
| Date | Status | Author | Reviewer | Change | Commit |
| --- | --- | --- | --- | --- | --- |
| 2026-10-06 | Proposed | Jens Tirsvad Nielsen | S01 | Initial version | [8ef00aa] |
---
## Artifact Under Review
- Instance reviewed: [MIL-002] (docs/milestones/mil-002-coffee-machine-core.md)
- Checklist used: [QC-MIL-001] (`QC-MIL-001`)
- Independence: S01 is the only stakeholder and is also the recorded author, so the reviewer-is-not-author rule cannot be met. The documents were drafted by Claude on S01's behalf; S01 reviews and signs. This is a known limit of a one-person project, not a clean independent review.
## Checklist Results
| # | Criterion | Status | Evidence/Notes |
| --- | --- | --- | --- |
| 1 | A concrete deliverable is defined for every gate | Pass | Deliverable section names the concrete output. |
| 2 | Explicit Go/No-Go criteria are stated for each gate | Pass | Go/No-Go table with one checkable criterion per row. |
| 3 | Dependencies on other milestones are explicitly mapped | Pass | Dependencies table present. |
| 4 | Each milestone is traceable to a Business Case objective or KPI | Pass | Traceability cites the Business Case objectives. |
| 5 | Milestone owner and approving reviewer are identified | Pass | Ownership names S01 as owner and approving reviewer (same person; see independence note). |
| 6 | Milestone has a defined target date consistent with project constraints | Pass | Target date lies inside the duration constraint added to BC-001 in RC-001's action (2026-10-05 to 2026-10-12). Before that fix this was a Fail. |
## Overall Verdict
Go — all criteria pass. Delivery matches: issues #6 to #12 closed, PR 21 merged. Note: Go/No-Go rows refer to the assignment's behaviour; the exact texts are asserted in tests/.
## Action Items
| Action | Owner | Due |
| --- | --- | --- |
| None | S01 | - |
---
[MIL-002]: ../../milestones/mil-002-coffee-machine-core.md
[QC-MIL-001]: ../../../framework/qc/qc-milestones-gateways.md
[8ef00aa]: https://git.tirsystem.com/Tirsvad-Udemy-100_days_of_code/015-coffee_machine/commit/8ef00aafaaa193ea565f1a45238d31e963a5e05d
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# RC-005 MIL-003 Review
## Metadata
| Key | Value |
| --- | --- |
| ID | RC-005 |
| CrossReference | [MIL-003], [QC-MIL-001] |
## Version History
| Date | Status | Author | Reviewer | Change | Commit |
| --- | --- | --- | --- | --- | --- |
| 2026-10-06 | Proposed | Jens Tirsvad Nielsen | S01 | Initial version | [8ef00aa] |
---
## Artifact Under Review
- Instance reviewed: [MIL-003] (docs/milestones/mil-003-quality-and-publication.md)
- Checklist used: [QC-MIL-001] (`QC-MIL-001`)
- Independence: S01 is the only stakeholder and is also the recorded author, so the reviewer-is-not-author rule cannot be met. The documents were drafted by Claude on S01's behalf; S01 reviews and signs. This is a known limit of a one-person project, not a clean independent review.
## Checklist Results
| # | Criterion | Status | Evidence/Notes |
| --- | --- | --- | --- |
| 1 | A concrete deliverable is defined for every gate | Pass | Deliverable section names the concrete output. |
| 2 | Explicit Go/No-Go criteria are stated for each gate | Pass | Go/No-Go table with one checkable criterion per row. |
| 3 | Dependencies on other milestones are explicitly mapped | Pass | Dependencies table present. |
| 4 | Each milestone is traceable to a Business Case objective or KPI | Pass | Traceability cites the Business Case objectives. |
| 5 | Milestone owner and approving reviewer are identified | Pass | Ownership names S01 as owner and approving reviewer (same person; see independence note). |
| 6 | Milestone has a defined target date consistent with project constraints | Pass | Target date lies inside the duration constraint added to BC-001 in RC-001's action (2026-10-05 to 2026-10-12). Before that fix this was a Fail. |
## Overall Verdict
Go — all criteria pass. Delivery matches: issues #13 to #17 closed, PR 22 merged.
## Action Items
| Action | Owner | Due |
| --- | --- | --- |
| None | S01 | - |
---
[MIL-003]: ../../milestones/mil-003-quality-and-publication.md
[QC-MIL-001]: ../../../framework/qc/qc-milestones-gateways.md
[8ef00aa]: https://git.tirsystem.com/Tirsvad-Udemy-100_days_of_code/015-coffee_machine/commit/8ef00aafaaa193ea565f1a45238d31e963a5e05d
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# Traceability Matrix
## Metadata
| Key | Value |
| --- | --- |
| ID | TM-001 |
| CrossReference | [BC-001] |
## Version History
| Date | Status | Author | Reviewer | Change | Commit |
| --- | --- | --- | --- | --- | --- |
| 2026-10-06 | Proposed | Jens Tirsvad Nielsen | S01 | Initial version | [8ef00aa] |
| 2026-10-06 | Proposed | Jens Tirsvad Nielsen | S01 | Added MIL-004 | [8ef00aa] |
---
## Purpose
Tracks backward/forward links between artifact instances so that the Business Case's
cross-artifact traceability can be measured. A row is added or updated whenever an
artifact instance is created or reviewed.
## Traceability Table
| Artifact Instance | Type | Upstream (Backward Link) | Downstream (Forward Link) | Last Reviewed (RC-ID) |
| --- | --- | --- | --- | --- |
| [SA-001] | Stakeholder Analysis | - | [BC-001] | [RC-002] |
| [BC-001] | Business Case | [SA-001] | [PP-001], [MIL-001], [MIL-002], [MIL-003], [MIL-004] | [RC-001] |
| [PP-001] | Project Plan | [BC-001], [SA-001] | [MIL-001], [MIL-002], [MIL-003], [MIL-004] | - |
| [MIL-001] | Milestone | [BC-001], [PP-001] | - | [RC-003] |
| [MIL-002] | Milestone | [BC-001], [PP-001] | - | [RC-004] |
| [MIL-003] | Milestone | [BC-001], [PP-001] | - | [RC-005] |
| [MIL-004] | Milestone | [BC-001], [PP-001] | - | - |
## Coverage Notes
- `-` in Upstream means foundational; in Downstream, nothing is built on it yet; in Last Reviewed, no `RC-*` exists yet.
- [PP-001] has no QC checklist in the framework, so it has no `RC-*`.
- No use case, domain model, design or data artifacts exist; the plan treats all tasks as plain technical tasks. The source code is covered by the tests, not by an `RC-*`.
---
[SA-001]: ../stakeholder-analysis.md
[BC-001]: ../business-case.md
[PP-001]: ../project-plan.md
[MIL-001]: ../milestones/mil-001-project-setup.md
[MIL-002]: ../milestones/mil-002-coffee-machine-core.md
[MIL-003]: ../milestones/mil-003-quality-and-publication.md
[MIL-004]: ../milestones/mil-004-code-review-and-ci.md
[RC-001]: ./reviews/rc-001-business-case.md
[RC-002]: ./reviews/rc-002-stakeholder-analysis.md
[RC-003]: ./reviews/rc-003-mil-001.md
[RC-004]: ./reviews/rc-004-mil-002.md
[RC-005]: ./reviews/rc-005-mil-003.md
[8ef00aa]: https://git.tirsystem.com/Tirsvad-Udemy-100_days_of_code/015-coffee_machine/commit/8ef00aafaaa193ea565f1a45238d31e963a5e05d
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## Version History
| Date | Status | Author | Reviewer | Change | Commit |
| --- | --- | --- | --- | --- | --- |
| 2026-10-05 | Accepted | Jens Tirsvad Nielsen | S01 | Initial version | [c0c3940] |
| 2026-10-05 | Deprecated | Jens Tirsvad Nielsen | S01 | Initial version | [c0c3940] |
| 2026-10-06 | Accepted | Jens Tirsvad Nielsen | S01 | Recorded S01 sign-off after RC-002 | [8ef00aa] |
---
@@ -70,9 +71,10 @@ Monitor).
| Stakeholder | Decision | Date |
| --- | --- | --- |
| S01 | Pending review | |
| S01 | Go (RC-002) | 2026-10-06 |
---
[BC-001]: ./business-case.md
[c0c3940]: https://git.tirsystem.com/Tirsvad-Udemy-100_days_of_code/015-coffee_machine/commit/c0c3940551db0d7d96492cc734976d0436051ff9
[8ef00aa]: https://git.tirsystem.com/Tirsvad-Udemy-100_days_of_code/015-coffee_machine/commit/8ef00aafaaa193ea565f1a45238d31e963a5e05d
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@@ -22,7 +22,7 @@ where = ["src"]
[tool.pytest.ini_options]
testpaths = ["tests"]
pythonpath = ["src"]
pythonpath = ["src", "."]
[tool.ruff]
line-length = 88
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"""!
@file constants.py
@brief Constants for the coffee machine: menu, coins and starting resources.
@brief Constants for the coffee machine: menu, coins, starting resources, texts.
The values are added in MIL-002 ("Define constants").
Money is stored in whole cents so that sums and change are exact.
"""
from typing import TypedDict
class Drink(TypedDict):
"""!
@brief A menu entry: the ingredients it needs and its price.
"""
ingredients: dict[str, int]
cost: int
MENU: dict[str, Drink] = {
"espresso": {"ingredients": {"water": 50, "coffee": 18}, "cost": 150},
"latte": {
"ingredients": {"water": 200, "milk": 150, "coffee": 24},
"cost": 250,
},
"cappuccino": {
"ingredients": {"water": 250, "milk": 100, "coffee": 24},
"cost": 300,
},
}
## Value of each US coin in cents, in the order the machine asks for them.
COIN_VALUES: dict[str, int] = {
"quarters": 25,
"dimes": 10,
"nickels": 5,
"pennies": 1,
}
INITIAL_RESOURCES: dict[str, int] = {"water": 300, "milk": 200, "coffee": 100}
## Unit printed after each resource in the report.
RESOURCE_UNITS: dict[str, str] = {"water": "ml", "milk": "ml", "coffee": "g"}
CENTS_PER_DOLLAR = 100
COMMAND_REPORT = "report"
COMMAND_OFF = "off"
PROMPT_ORDER = "What would you like? (espresso/latte/cappuccino): "
MESSAGE_INSERT_COINS = "Please insert coins."
MESSAGE_NOT_ENOUGH_MONEY = "Sorry that's not enough money. Money refunded."
MESSAGE_UNKNOWN_DRINK = "Sorry, we do not serve that."
MESSAGE_INVALID_NUMBER = "Please enter a whole number of coins, zero or more."
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"""!
@file main.py
@brief Entry point of the coffee machine.
@brief Entry point and logic of the coffee machine.
"""
from coffee_machine.constants import (
CENTS_PER_DOLLAR,
COIN_VALUES,
COMMAND_OFF,
COMMAND_REPORT,
INITIAL_RESOURCES,
MENU,
MESSAGE_INSERT_COINS,
MESSAGE_INVALID_NUMBER,
MESSAGE_NOT_ENOUGH_MONEY,
MESSAGE_UNKNOWN_DRINK,
PROMPT_ORDER,
RESOURCE_UNITS,
)
def format_money(cents: int) -> str:
"""!
@brief Format an amount in cents as dollars.
@param cents Amount in whole cents.
@return The amount such as "$2.50".
"""
return f"${cents / CENTS_PER_DOLLAR:.2f}"
def report(resources: dict[str, int], profit: int) -> None:
"""!
@brief Print the resources left in the machine and the money earned.
@param resources Remaining amount of each resource.
@param profit Money earned so far, in cents.
"""
for name, amount in resources.items():
print(f"{name.capitalize()}: {amount}{RESOURCE_UNITS[name]}")
print(f"Money: {format_money(profit)}")
def is_resource_sufficient(
order_ingredients: dict[str, int], resources: dict[str, int]
) -> bool:
"""!
@brief Check that the machine has enough of every ingredient for an order.
@param order_ingredients Amount of each ingredient the drink needs.
@param resources Remaining amount of each resource.
@return True if every ingredient is available, otherwise False after
printing the first missing one.
"""
for name, needed in order_ingredients.items():
if needed > resources[name]:
print(f"Sorry there is not enough {name}.")
return False
return True
def _ask_coin_count(coin_name: str) -> int:
"""!
@brief Ask how many coins of one kind are inserted, until the answer is valid.
@param coin_name Plural coin name, such as "quarters".
@return The number of coins, zero or more.
"""
while True:
answer = input(f"How many {coin_name}?: ")
try:
count = int(answer)
except ValueError:
count = -1
if count >= 0:
return count
print(MESSAGE_INVALID_NUMBER)
def process_coins() -> int:
"""!
@brief Ask for the coins and total their value.
@return The total inserted, in cents.
"""
print(MESSAGE_INSERT_COINS)
return sum(
_ask_coin_count(coin_name) * value for coin_name, value in COIN_VALUES.items()
)
def is_transaction_successful(money_received: int, drink_cost: int) -> bool:
"""!
@brief Check the payment, refund it if too small, otherwise give change.
@param money_received Money inserted, in cents.
@param drink_cost Price of the drink, in cents.
@return True if the payment covers the price, otherwise False.
"""
if money_received < drink_cost:
print(MESSAGE_NOT_ENOUGH_MONEY)
return False
change = money_received - drink_cost
if change > 0:
print(f"Here is {format_money(change)} in change.")
return True
def make_coffee(
drink_name: str, order_ingredients: dict[str, int], resources: dict[str, int]
) -> None:
"""!
@brief Use up the drink's ingredients and serve it.
@param drink_name Name of the drink.
@param order_ingredients Amount of each ingredient the drink needs.
@param resources Remaining amount of each resource; updated in place.
"""
for name, needed in order_ingredients.items():
resources[name] -= needed
print(f"Here is your {drink_name}. Enjoy!")
def main() -> None:
"""!
@brief Run the coffee machine.
The ordering loop is added in MIL-002 ("Implement main loop").
@brief Run the coffee machine until the user types "off".
"""
resources = dict(INITIAL_RESOURCES)
profit = 0
while True:
choice = input(PROMPT_ORDER).strip().lower()
if choice == COMMAND_OFF:
return
if choice == COMMAND_REPORT:
report(resources, profit)
elif choice in MENU:
drink = MENU[choice]
if not is_resource_sufficient(drink["ingredients"], resources):
continue
payment = process_coins()
if is_transaction_successful(payment, drink["cost"]):
profit += drink["cost"]
make_coffee(choice, drink["ingredients"], resources)
else:
print(MESSAGE_UNKNOWN_DRINK)
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"""!
@file __init__.py
@brief Test package.
"""
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"""!
@file conftest.py
@brief Shared pytest helpers.
"""
from collections.abc import Callable, Iterable
import pytest
ScriptInput = Callable[[Iterable[str]], None]
@pytest.fixture
def script_input(monkeypatch: pytest.MonkeyPatch) -> ScriptInput:
"""!
@brief Provide a function that feeds the given answers to `input`.
@param monkeypatch pytest's monkeypatch fixture.
@return A function taking the answers in the order they are asked.
"""
def feed(answers: Iterable[str]) -> None:
remaining = iter(answers)
monkeypatch.setattr("builtins.input", lambda _prompt: next(remaining))
return feed
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"""!
@file test_machine.py
@brief Tests for making drinks and the main loop.
"""
import pytest
from coffee_machine.constants import MENU
from coffee_machine.main import main, make_coffee
from tests.conftest import ScriptInput
COINS_FOR_LATTE = ["10", "0", "0", "0"]
NO_COINS = ["0", "0", "0", "0"]
FULL_REPORT = "Water: 300ml\nMilk: 200ml\nCoffee: 100g\nMoney: $0.00"
def test_make_coffee_uses_up_ingredients(capsys: pytest.CaptureFixture[str]) -> None:
"""!
@brief The drink's ingredients are deducted and the drink is served.
"""
resources = {"water": 300, "milk": 200, "coffee": 100}
make_coffee("latte", MENU["latte"]["ingredients"], resources)
assert resources == {"water": 100, "milk": 50, "coffee": 76}
assert capsys.readouterr().out == "Here is your latte. Enjoy!\n"
def test_off_ends_the_machine(script_input: ScriptInput) -> None:
"""!
@brief Typing off returns from the loop.
"""
script_input(["off"])
main()
def test_report_shows_starting_resources(
script_input: ScriptInput, capsys: pytest.CaptureFixture[str]
) -> None:
"""!
@brief A fresh machine reports full resources and no money.
"""
script_input(["report", "off"])
main()
assert FULL_REPORT in capsys.readouterr().out
def test_unknown_input_is_rejected(
script_input: ScriptInput, capsys: pytest.CaptureFixture[str]
) -> None:
"""!
@brief Anything that is not a drink or command prints a message.
"""
script_input(["tea", "off"])
main()
assert "Sorry, we do not serve that." in capsys.readouterr().out
def test_sale_updates_resources_and_profit(
script_input: ScriptInput, capsys: pytest.CaptureFixture[str]
) -> None:
"""!
@brief A paid drink is served, resources drop and profit rises by the price.
"""
script_input(["latte", *COINS_FOR_LATTE, "report", "off"])
main()
out = capsys.readouterr().out
assert "Here is your latte. Enjoy!" in out
assert "Water: 100ml\nMilk: 50ml\nCoffee: 76g\nMoney: $2.50" in out
def test_refund_changes_nothing(
script_input: ScriptInput, capsys: pytest.CaptureFixture[str]
) -> None:
"""!
@brief An underpaid order is refunded: no drink, no profit.
"""
script_input(["espresso", *NO_COINS, "report", "off"])
main()
out = capsys.readouterr().out
assert "Money refunded." in out
assert "Enjoy" not in out
assert FULL_REPORT in out
def test_overpayment_adds_only_price_to_profit(
script_input: ScriptInput, capsys: pytest.CaptureFixture[str]
) -> None:
"""!
@brief Change is returned and only the price is counted as profit.
"""
script_input(["espresso", "7", "0", "0", "0", "report", "off"])
main()
out = capsys.readouterr().out
assert "Here is $0.25 in change." in out
assert "Money: $1.50" in out
def test_order_refused_when_resources_run_out(
script_input: ScriptInput, capsys: pytest.CaptureFixture[str]
) -> None:
"""!
@brief After the water is used up, the next order is refused before payment.
"""
script_input(["latte", *COINS_FOR_LATTE, "latte", "off"])
main()
out = capsys.readouterr().out
assert out.count("Please insert coins.") == 1
assert "Sorry there is not enough water." in out
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"""!
@file test_resources.py
@brief Tests for the report and the resource check.
"""
import pytest
from coffee_machine.constants import INITIAL_RESOURCES, MENU
from coffee_machine.main import format_money, is_resource_sufficient, report
def test_format_money_shows_two_decimals() -> None:
"""!
@brief Cents are shown as dollars with two decimals.
"""
assert format_money(250) == "$2.50"
assert format_money(0) == "$0.00"
def test_report_prints_resources_and_money(capsys: pytest.CaptureFixture[str]) -> None:
"""!
@brief The report lists each resource with its unit, then the money.
"""
report({"water": 300, "milk": 200, "coffee": 100}, 250)
assert capsys.readouterr().out == (
"Water: 300ml\nMilk: 200ml\nCoffee: 100g\nMoney: $2.50\n"
)
def test_is_resource_sufficient_when_enough() -> None:
"""!
@brief An order is accepted when every ingredient is available.
"""
assert is_resource_sufficient(MENU["latte"]["ingredients"], INITIAL_RESOURCES)
def test_is_resource_sufficient_when_exactly_enough() -> None:
"""!
@brief Using up an ingredient completely is allowed.
"""
assert is_resource_sufficient({"water": 300}, {"water": 300})
def test_is_resource_sufficient_names_missing_resource(
capsys: pytest.CaptureFixture[str],
) -> None:
"""!
@brief A short ingredient is refused and named.
"""
resources = {"water": 300, "milk": 100, "coffee": 100}
assert not is_resource_sufficient(MENU["latte"]["ingredients"], resources)
assert capsys.readouterr().out == "Sorry there is not enough milk.\n"
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@brief Smoke test that the package imports.
"""
import pytest
from coffee_machine import main as main_module
def test_main_is_callable() -> None:
def test_main_is_callable(monkeypatch: pytest.MonkeyPatch) -> None:
"""!
@brief The entry point runs without error.
@brief The entry point starts and stops on "off".
"""
monkeypatch.setattr("builtins.input", lambda _prompt: "off")
main_module.main()
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"""!
@file test_transactions.py
@brief Tests for coin processing and payment.
"""
import pytest
from coffee_machine.main import is_transaction_successful, process_coins
from tests.conftest import ScriptInput
def test_process_coins_totals_in_cents(script_input: ScriptInput) -> None:
"""!
@brief Quarters, dimes, nickels and pennies add up to the right total.
"""
script_input(["4", "3", "2", "1"])
assert process_coins() == 4 * 25 + 3 * 10 + 2 * 5 + 1
def test_process_coins_asks_again_on_invalid_count(
script_input: ScriptInput, capsys: pytest.CaptureFixture[str]
) -> None:
"""!
@brief Text and negative counts are rejected and asked again.
"""
script_input(["abc", "-1", "2", "0", "0", "0"])
assert process_coins() == 50
assert capsys.readouterr().out.count("Please enter a whole number") == 2
def test_transaction_refused_when_too_little(
capsys: pytest.CaptureFixture[str],
) -> None:
"""!
@brief Too little money is refunded with the refund message.
"""
assert not is_transaction_successful(100, 150)
assert "Sorry that's not enough money. Money refunded." in capsys.readouterr().out
def test_transaction_accepted_with_exact_payment(
capsys: pytest.CaptureFixture[str],
) -> None:
"""!
@brief Exact payment succeeds and gives no change.
"""
assert is_transaction_successful(150, 150)
assert "change" not in capsys.readouterr().out
def test_transaction_gives_change(capsys: pytest.CaptureFixture[str]) -> None:
"""!
@brief Overpaying succeeds and returns the difference.
"""
assert is_transaction_successful(175, 150)
assert capsys.readouterr().out == "Here is $0.25 in change.\n"