✅ Add tests for printing and terminating

tests/test_tutorial/test_terminating/test_tutorial001.py

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+import subprocess
+
+import typer
+from typer.testing import CliRunner
+
+from terminating import tutorial001 as mod
+
+runner = CliRunner()
+
+app = typer.Typer()
+app.command()(mod.main)
+
+
+def test_cli():
+    result = runner.invoke(app, ["Camila"])
+    assert result.exit_code == 0
+    assert "User created: Camila" in result.output
+    assert "Notification sent for new user: Camila" in result.output
+
+
+def test_existing():
+    result = runner.invoke(app, ["rick"])
+    assert result.exit_code == 0
+    assert "The user already exists" in result.output
+    assert "Notification sent for new user" not in result.output
+
+
+def test_script():
+    result = subprocess.run(
+        ["coverage", "run", mod.__file__, "--help"],
+        stdout=subprocess.PIPE,
+        stderr=subprocess.PIPE,
+        encoding="utf-8",
+    )
+    assert "Usage" in result.stdout

tests/test_tutorial/test_terminating/test_tutorial002.py

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+import subprocess
+
+import typer
+from typer.testing import CliRunner
+
+from terminating import tutorial002 as mod
+
+runner = CliRunner()
+
+app = typer.Typer()
+app.command()(mod.main)
+
+
+def test_cli():
+    result = runner.invoke(app, ["Camila"])
+    assert result.exit_code == 0
+    assert "New user created: Camila" in result.output
+
+
+def test_root():
+    result = runner.invoke(app, ["root"])
+    assert result.exit_code == 1
+    assert "The root user is reserved" in result.output
+
+
+def test_script():
+    result = subprocess.run(
+        ["coverage", "run", mod.__file__, "--help"],
+        stdout=subprocess.PIPE,
+        stderr=subprocess.PIPE,
+        encoding="utf-8",
+    )
+    assert "Usage" in result.stdout

tests/test_tutorial/test_terminating/test_tutorial003.py

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+import subprocess
+
+import typer
+from typer.testing import CliRunner
+
+from terminating import tutorial003 as mod
+
+runner = CliRunner()
+
+app = typer.Typer()
+app.command()(mod.main)
+
+
+def test_cli():
+    result = runner.invoke(app, ["Camila"])
+    assert result.exit_code == 0
+    assert "New user created: Camila" in result.output
+
+
+def test_root():
+    result = runner.invoke(app, ["root"])
+    assert result.exit_code == 1
+    assert "The root user is reserved" in result.output
+    assert "Aborted!" in result.output
+
+
+def test_script():
+    result = subprocess.run(
+        ["coverage", "run", mod.__file__, "--help"],
+        stdout=subprocess.PIPE,
+        stderr=subprocess.PIPE,
+        encoding="utf-8",
+    )
+    assert "Usage" in result.stdout