Implemented a few basic unit tests

Jenkinsfile

@@ -55,6 +55,29 @@ pipeline {
         }
       }
     }
+    stage('Test') {
+      agent {
+          docker {
+              image "rightbrainnetworks/auto-semver:${env.VERSION}"
+          }
+      }
+      steps
+      {
+        dir('semver')
+        {
+          sh 'python tests.py'
+        }
+      }
+      post{
+        // Update Git with status of test stage.
+        success {
+          updateGithubCommitStatus(GITHUB_URL, 'Passed test stage', 'SUCCESS', 'Test')
+        }
+        failure {
+          updateGithubCommitStatus(GITHUB_URL, 'Failed test stage', 'FAILURE', 'Test')
+        }
+      }
+    }
     stage('Push')
     {
       steps {

semver/.gitignore

@@ -0,0 +1 @@
+test

semver/tests.py

@@ -0,0 +1,82 @@
+import unittest, os, subprocess, semver
+
+
+from semver import get_version
+
+config_data = """
+[bumpversion]
+current_version = 0.0.0
+commit = False
+tag = True
+tag_name = {new_version}
+
+[semver]
+main_branches = master
+major_branches = major
+minor_branches = minor
+patch_branches = patch
+"""
+
+test_directory = "test"
+
+
+class TestSemverObject(unittest.TestCase):
+    def test_get_version_type_major_merge(self):
+        semver_object = semver.SemVer()
+        semver_object.merged_branch = "major/unittest"
+        semver_object.get_version_type()
+        self.assertEqual(semver_object.version_type, "major")
+    def test_get_version_type_minor_merge(self):
+        semver_object = semver.SemVer()
+        semver_object.merged_branch = "minor/unittest"
+        semver_object.get_version_type()
+        self.assertEqual(semver_object.version_type, "minor")
+    def test_get_version_type_patch_merge(self):
+        semver_object = semver.SemVer()
+        semver_object.merged_branch = "patch/unittest"
+        semver_object.get_version_type()
+        self.assertEqual(semver_object.version_type, "patch")
+
+class TestGetVersion(unittest.TestCase):
+    def test_get_branch_version(self):
+        create_git_environment()
+        branch = get_version.get_version()
+        self.assertEqual(branch, "master")
+    def test_branch_dotting(self):
+        create_git_environment()
+        subprocess.run(['git', 'checkout', '-b', 'test/branch'])
+        branch = get_version.get_version(True)
+        self.assertEqual(branch, "test.branch")
+    def test_branch_dotting_false(self):
+        create_git_environment()
+        subprocess.run(['git', 'checkout', '-b', 'test/branch'])
+        branch = get_version.get_version(False)
+        self.assertEqual(branch, "test/branch")
+
+class TestGetTagVersion(unittest.TestCase):
+    def test_get_version_tag(self):
+        create_git_environment()
+        subprocess.run(['git', 'tag', '1.0.0'])
+        tag = get_version.get_tag_version()
+        self.assertEqual(tag, "1.0.0")
+    def test_default_get_version_tag(self):
+        create_git_environment()
+        tag = get_version.get_tag_version()
+        self.assertEqual(tag, "0.0.0")
+
+def create_git_environment():
+    subprocess.run(['rm', '-rf', './.git'])
+    subprocess.run(['git', 'init'])
+    subprocess.run(['touch', 'file.txt'])
+    subprocess.run(['git', 'add', 'file.txt'])
+    subprocess.run(['git', 'commit', '-m', 'file.txt'])
+    subprocess.run(['git', 'remote', 'add', 'origin', os.getcwd()+'/.git'])
+
+if __name__ == "__main__":
+    subprocess.run(['rm', '-rf', test_directory])
+    subprocess.run(['mkdir', test_directory])
+    os.chdir(test_directory)
+    with open('.bumpversion.cfg', "w") as config:
+        config.write(config_data)
+    unittest.main()
+    os.chdir("..")