Add cmdline tests, trying to increase coverage

honesty/cmdline.py

@@ -658,5 +658,5 @@ def select_versions(package: Package, operator: str, selector: str) -> List[Vers
         return [pv]
 
 
-if __name__ == "__main__":
+if __name__ == "__main__":  # pragma: no cover
     cli(prog_name="honesty")

honesty/tests/__init__.py

@@ -1,6 +1,7 @@
 from .archive import ArchiveTest
 from .cache import CacheTest
 from .checker import CheckerTest
+from .cmdline import DownloadTest, ExtractTest, LicenseTest
 from .deps import (
     ConvertSdistRequiresTest,
     DepWalkerTest,
@@ -16,6 +17,9 @@
     "ArchiveTest",
     "CacheTest",
     "CheckerTest",
+    "LicenseTest",
+    "DownloadTest",
+    "ExtractTest",
     "ConvertSdistRequiresTest",
     "EnvironmentMarkersTest",
     "FindCompatibleVersionTest",

honesty/tests/cmdline.py

@@ -0,0 +1,37 @@
+import hashlib
+import unittest
+from pathlib import Path
+
+from click.testing import CliRunner
+
+from ..cmdline import download, extract, license
+
+
+class ExtractTest(unittest.TestCase):
+    def test_honesty_extract(self) -> None:
+        runner = CliRunner()
+        result = runner.invoke(extract, ["honesty==0.2.1"])
+        self.assertTrue(Path(result.output.strip(), "MANIFEST.in").exists())
+
+
+class LicenseTest(unittest.TestCase):
+    def test_honesty_license(self) -> None:
+        runner = CliRunner()
+        result = runner.invoke(license, ["honesty==0.2.1"])
+        self.assertEqual("honesty==0.2.1: MIT\n", result.output)
+        self.assertEqual(0, result.exit_code)
+
+
+class DownloadTest(unittest.TestCase):
+    def test_honesty_download(self) -> None:
+        runner = CliRunner()
+        result = runner.invoke(download, ["honesty==0.2.1"])
+        hasher = hashlib.sha1()
+        hasher.update(Path(result.output.strip()).read_bytes())
+        self.assertEqual("4c7f15d7f1c291ada81fe333d3672283bc7437f9", hasher.hexdigest())
+        self.assertEqual(0, result.exit_code)
+
+        result = runner.invoke(download, ["honesty==0.2.2"])
+        self.assertEqual(
+            "Error: The version 0.2.2 does not exist for honesty\n", result.output
+        )