seed: curriculum content

1.solar-system/2.first-light/05.the-vault/index.md

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+---
+type: challenge
+title: "The Vault"
+xp: 50
+duration: 25
+difficulty: 1
+---
+
+# The Vault
+
+> **[INCOMING — Mission Control, Earth]**
+>
+> Cadet, every program needs to remember things. Variables hold
+> values; types tell Python what kind of value:
+>
+> - `int` — whole numbers, like `3`
+> - `float` — decimals, like `4500.5`
+> - `str` — text in quotes, like `"Apollo"`
+> - `bool` — `True` or `False`
+>
+> A **dictionary** maps keys to values. Implement a function `vault`
+> that returns a dictionary with exactly these four keys and values:
+>
+> ```
+> "mission":   "Apollo"
+> "crew_size": 3
+> "fuel_kg":   4500.5
+> "ready":     True
+> ```
+>
+> [END TRANSMISSION]
+
+## Your Task
+
+Open `starter/starter.py`. Replace `pass` with `return { ... }`.
+
+## Objectives
+
+- `vault()` returns a dict
+- Each key holds the exact value above (and the right type)

1.solar-system/2.first-light/05.the-vault/starter/starter.py

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+def vault():
+    """Return a dictionary with these four keys and exact values:
+
+      "mission":   "Apollo"           (str)
+      "crew_size": 3                  (int)
+      "fuel_kg":   4500.5             (float)
+      "ready":     True               (bool)
+    """
+    pass

1.solar-system/2.first-light/05.the-vault/testing/test_solution.py

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+from solution import vault
+
+
+def test_returns_dict():
+    assert isinstance(vault(), dict)
+
+
+def test_mission_is_correct_string():
+    v = vault()
+    assert v["mission"] == "Apollo"
+    assert isinstance(v["mission"], str)
+
+
+def test_crew_size_is_correct_int():
+    v = vault()
+    assert v["crew_size"] == 3
+    assert isinstance(v["crew_size"], int)
+    assert not isinstance(v["crew_size"], bool)
+
+
+def test_fuel_kg_is_correct_float():
+    v = vault()
+    assert v["fuel_kg"] == 4500.5
+    assert isinstance(v["fuel_kg"], float)
+
+
+def test_ready_is_true_bool():
+    v = vault()
+    assert v["ready"] is True