Working on coding types and tests

We create a valid pytest for the coding module, exactly a test for the
only type `SemverParamType`.
For that type we also fix a deprecation related finding.

Author: cmeissner

click_types/coding.py

@@ -28,7 +28,7 @@ def convert(self, value, param, ctx):
         :rtype: str
         """
         try:
-            semver.parse(value)
+            semver.VersionInfo.parse(value)
             return value
         except ValueError as e:
             self.fail('Not a valid version, {0}'.format(str(e)), param, ctx)

tests/test_cases/coding.py

@@ -1,16 +1,39 @@
-#!/usr/bin/env python
 import click
 
+from click.testing import CliRunner
 from click_types.coding import SemVerParamType
 
 semver = SemVerParamType()
+runner = CliRunner()
 
 
-def test_semver():
-    version = click.prompt("Enter semantic version", type=semver)
-    click.echo('Passed: Valid version, {0} is a valid SemVer string'.format(version))
+@click.command()
+@click.option('--version', type=semver)
+def semver_wrapper(version):
+    pass
 
 
-if __name__ == "__main__":
-    while True:
-        test_semver()
+def test_success():
+
+    positive_semvers = [
+        '1.2.3',
+        '1.2.3-alpha',
+        '1.2.3-beta+build1337'
+    ]
+    for s in positive_semvers:
+        print(s)
+        response = runner.invoke(semver_wrapper, ['--version', s])
+        assert response.exit_code == 0
+
+
+def test_failure():
+
+    negative_semvers = [
+        '1.2',
+        '1.2.3+build1337',
+        '1.2.3-alpha-build4711'
+    ]
+
+    for s in negative_semvers:
+        response = runner.invoke(semver, ['--version', s])
+        assert response.exit_code == 1