✅ Add tests for compatibility with Click 8 and 7 and test coverage

tests/assets/compat_click7_8.py

@@ -0,0 +1,29 @@
+from typing import List
+
+import click
+import typer
+
+app = typer.Typer()
+
+
+def shell_complete(
+    ctx: click.Context, param: click.Parameter, incomplete: str
+) -> List[str]:
+    return ["Jonny"]
+
+
+@app.command(context_settings={"auto_envvar_prefix": "TEST"})
+def main(
+    name: str = typer.Option("John", hidden=True),
+    lastname: str = typer.Option("Doe", "/lastname", show_default="Mr. Doe"),
+    age: int = typer.Option(lambda: 42, show_default=True),
+    nickname: str = typer.Option("", shell_complete=shell_complete),
+):
+    """
+    Say hello.
+    """
+    typer.echo(f"Hello {name} {lastname}, it seems you have {age}, {nickname}")
+
+
+if __name__ == "__main__":
+    app()

tests/test_compat/test_option_get_help.py

@@ -0,0 +1,40 @@
+import os
+import subprocess
+
+from typer.testing import CliRunner
+
+from tests.assets import compat_click7_8 as mod
+
+runner = CliRunner()
+
+
+def test_hidden_option():
+    result = runner.invoke(mod.app, ["--help"])
+    assert result.exit_code == 0
+    assert "Say hello" in result.output
+    assert "--name" not in result.output
+    assert "/lastname" in result.output
+    assert "TEST_LASTNAME" in result.output
+    assert "(dynamic)" in result.output
+
+
+def test_coverage_call():
+    result = runner.invoke(mod.app)
+    assert result.exit_code == 0
+    assert "Hello John Doe, it seems you have 42" in result.output
+
+
+def test_completion():
+    result = subprocess.run(
+        ["coverage", "run", mod.__file__, " "],
+        stdout=subprocess.PIPE,
+        stderr=subprocess.PIPE,
+        encoding="utf-8",
+        env={
+            **os.environ,
+            "_COMPAT_CLICK7_8.PY_COMPLETE": "complete_zsh",
+            "_TYPER_COMPLETE_ARGS": "compat_click7_8.py --nickname ",
+            "_TYPER_COMPLETE_TESTING": "True",
+        },
+    )
+    assert "Jonny" in result.stdout