I just want the tutorial

tests/test_db.py

@@ -0,0 +1,29 @@
+import sqlite3
+
+import pytest
+
+from flaskr.db import get_db
+
+
+def test_get_close_db(app):
+    with app.app_context():
+        db = get_db()
+        assert db is get_db()
+
+    with pytest.raises(sqlite3.ProgrammingError) as e:
+        db.execute("SELECT 1")
+
+    assert "closed" in str(e.value)
+
+
+def test_init_db_command(runner, monkeypatch):
+    class Recorder:
+        called = False
+
+    def fake_init_db():
+        Recorder.called = True
+
+    monkeypatch.setattr("flaskr.db.init_db", fake_init_db)
+    result = runner.invoke(args=["init-db"])
+    assert "Initialized" in result.output
+    assert Recorder.called