MIL-002: Step 1 - User interface

Review record RC-024 (Go, autonomous mode, not independent).

Task: MIL-002#1
Task: MIL-002#2
Task: MIL-002#3
Task: MIL-002#4

tests/unit/test_flash_card_view_model.py

@@ -0,0 +1,18 @@
+"""Tests of the flash card view model.
+
+@file test_flash_card_view_model.py
+@brief Checks the placeholder texts of FlashCardViewModel.
+"""
+
+from flash_card.constants import PLACEHOLDER_LANGUAGE_NAME, PLACEHOLDER_WORD
+from flash_card.presentation.features.flash_card.flash_card_view_model import (
+    FlashCardViewModel,
+)
+
+
+def test_language_name_returns_placeholder() -> None:
+    assert FlashCardViewModel().language_name == PLACEHOLDER_LANGUAGE_NAME
+
+
+def test_text_returns_placeholder_word() -> None:
+    assert FlashCardViewModel().text == PLACEHOLDER_WORD