From 165e3b8bcc492ebe31431f30c14d5dc98bb7f18e Mon Sep 17 00:00:00 2001
From: lukegleeson <luke.gleeson@est.tech>
Date: Tue, 8 Mar 2022 11:41:52 +0000
Subject: [PATCH] Copyright Check Script

- Prints warnings to build log if copyright issues detected
- File ignore included for checkstyle folder and common extensions which don't have copyrights
- Included Tests

Issue-ID: CPS-911
Signed-off-by: lukegleeson <luke.gleeson@est.tech>
Change-Id: Idbdd050af964335cc32218e3c11c77d4101f9ecd
---
 checkstyle/pom.xml                                 |  54 +++
 checkstyle/src/main/CopyrightCheck.py              | 262 ++++++++++++
 .../src/main/resources/copyright-template.txt      |  16 +
 .../src/main/resources/ignore-files-config.csv     |   6 +
 .../main/resources/project-committers-config.csv   |   3 +
 checkstyle/src/main/test_CopyrightCheck.py         | 441 +++++++++++++++++++++
 6 files changed, 782 insertions(+)
 create mode 100644 checkstyle/src/main/CopyrightCheck.py
 create mode 100644 checkstyle/src/main/resources/copyright-template.txt
 create mode 100644 checkstyle/src/main/resources/ignore-files-config.csv
 create mode 100644 checkstyle/src/main/resources/project-committers-config.csv
 create mode 100644 checkstyle/src/main/test_CopyrightCheck.py

diff --git a/checkstyle/pom.xml b/checkstyle/pom.xml
index 07e6cf966..185d9c33a 100644
--- a/checkstyle/pom.xml
+++ b/checkstyle/pom.xml
@@ -2,6 +2,7 @@
 <!--
   ============LICENSE_START=======================================================
   Copyright (C) 2020 Pantheon.tech
+  Modifications Copyright (C) 2022 Nordix Foundation
   ================================================================================
   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
@@ -27,6 +28,31 @@
     <artifactId>checkstyle</artifactId>
     <version>3.0.0-SNAPSHOT</version>
 
+    <profiles>
+        <profile>
+            <id>Windows</id>
+            <activation>
+                <os>
+                    <family>Windows</family>
+                </os>
+            </activation>
+            <properties>
+                <script.executor>python</script.executor>
+            </properties>
+        </profile>
+        <profile>
+            <id>unix</id>
+            <activation>
+                <os>
+                    <family>unix</family>
+                </os>
+            </activation>
+            <properties>
+                <script.executor>python3</script.executor>
+            </properties>
+        </profile>
+    </profiles>
+
     <properties>
         <nexusproxy>https://nexus.onap.org</nexusproxy>
         <releaseNexusPath>/content/repositories/releases/</releaseNexusPath>
@@ -46,4 +72,32 @@
             <url>${nexusproxy}${snapshotNexusPath}</url>
         </snapshotRepository>
     </distributionManagement>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>exec-maven-plugin</artifactId>
+                <version>1.6.0</version>
+                <executions>
+                    <execution>
+                        <id>copyright-check</id>
+                        <phase>verify</phase>
+                        <goals>
+                            <goal>exec</goal>
+                        </goals>
+                        <configuration>
+                            <executable>${script.executor}</executable>
+                            <workingDirectory>../checkstyle/src/main/</workingDirectory>
+                            <arguments>
+                                <argument>CopyrightCheck.py</argument>
+                                <argument>resources/project-committers-config.csv</argument>
+                                <argument>resources/copyright-template.txt</argument>
+                                <argument>resources/ignore-files-config.csv</argument>
+                            </arguments>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
 </project>
\ No newline at end of file
diff --git a/checkstyle/src/main/CopyrightCheck.py b/checkstyle/src/main/CopyrightCheck.py
new file mode 100644
index 000000000..8f1dbff57
--- /dev/null
+++ b/checkstyle/src/main/CopyrightCheck.py
@@ -0,0 +1,262 @@
+#  ============LICENSE_START=======================================================
+#  Copyright (C) 2022 Nordix Foundation
+#  ================================================================================
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#        http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+#  SPDX-License-Identifier: Apache-2.0
+#  ============LICENSE_END=========================================================
+
+import subprocess
+import csv
+import re
+import datetime
+
+#constants
+import sys
+
+COMMITTERS_CONFIG_FILE = ''
+TEMPLATE_COPYRIGHT_FILE = ''
+IGNORE_FILE = ''
+if len(sys.argv) == 4:
+    COMMITTERS_CONFIG_FILE = sys.argv[1]
+    TEMPLATE_COPYRIGHT_FILE = sys.argv[2]
+    IGNORE_FILE = sys.argv[3]
+
+BANNER = '=' * 120
+
+def main():
+    print(BANNER + '\nCopyright Check Python Script:')
+    PermissionsCheck()
+
+    committerEmailExtension = GetCommitterEmailExtension()
+    projectCommitters = ReadProjectCommittersConfigFile()
+
+    CheckCommitterInConfigFile(committerEmailExtension, projectCommitters)
+
+    alteredFiles = FindAlteredFiles()
+
+    if alteredFiles:
+        issueCounter = CheckCopyrightForFiles(alteredFiles, projectCommitters, committerEmailExtension)
+    else:
+        issueCounter = 0
+
+    print(str(issueCounter) + ' issue(s) found after '+ str(len(alteredFiles)) + ' altered file(s) checked')
+    print(BANNER)
+
+
+# Check that Script has access to command line functions to use git
+def PermissionsCheck():
+   if 'permission denied' in subprocess.run('git', shell=True, stdout=subprocess.PIPE).stdout.decode('utf-8').lower():
+       print('Error, I may not have the necessary permissions. Exiting...')
+       print(BANNER)
+       sys.exit()
+   else:
+       return
+
+# Returns List of Strings of file tracked by git which have been changed/added
+def FindAlteredFiles():
+    ignoreFilePaths = GetIgnoredFiles()
+
+    #Before Stage lower case d removes deleted files
+    stream = subprocess.run('git diff --name-only --diff-filter=d', shell=True, stdout=subprocess.PIPE)
+    fileNames = stream.stdout.decode('utf-8')
+    #Staged
+    stream = subprocess.run('git diff --name-only --cached --diff-filter=d', shell=True, stdout=subprocess.PIPE)
+    fileNames += '\n' + stream.stdout.decode('utf-8')
+    #New committed
+    stream = subprocess.run('git diff --name-only HEAD^ HEAD --diff-filter=d', shell=True, stdout=subprocess.PIPE)
+    fileNames += '\n' + stream.stdout.decode('utf-8')
+
+    #String to list of strings
+    alteredFiles = fileNames.split("\n")
+
+    #Remove duplicates
+    alteredFiles = list(dict.fromkeys(alteredFiles))
+
+    #Remove blank string(s)
+    alteredFiles = list(filter(None, alteredFiles))
+
+    #Remove ignored-extensions
+    alteredFiles = list(filter(lambda fileName: not re.match("|".join(ignoreFilePaths), fileName), alteredFiles))
+
+    return alteredFiles
+
+# Get the email of the most recent committer
+def GetCommitterEmailExtension():
+    email = subprocess.run('git show -s --format=\'%ce\'', shell=True, stdout=subprocess.PIPE).stdout.decode('utf-8').rstrip('\n')
+    return email[email.index('@'):]
+
+# Read the config file with names of companies and respective email extensions
+def ReadProjectCommittersConfigFile():
+    try:
+        with open(COMMITTERS_CONFIG_FILE, 'r') as file:
+            reader = csv.reader(file, delimiter=',')
+            projectCommitters = {row[0]:row[1] for row in reader}
+        projectCommitters.pop('email')  #Remove csv header
+    except FileNotFoundError:
+        print('Unable to open Project Committers Config File, have the command line arguments been set?')
+        print(BANNER)
+        sys.exit()
+    return projectCommitters
+
+def CheckCommitterInConfigFile(committerEmailExtension, projectCommitters):
+    if not committerEmailExtension in projectCommitters:
+        print('Error, Committer email is not included in config file.')
+        print('If your company is new to the project please make appropriate changes to project-committers-config.csv')
+        print('for Copyright Check to work.')
+        print('Exiting...')
+        print(BANNER)
+        sys.exit()
+    else:
+        return True
+
+# Read config file with list of files to ignore
+def GetIgnoredFiles():
+    try:
+        with open(IGNORE_FILE, 'r') as file:
+            reader = csv.reader(file)
+            ignoreFilePaths = [row[0] for row in reader]
+        ignoreFilePaths.pop(0)  #Remove csv header
+        ignoreFilePaths = [filePath.replace('*', '.*') for filePath in ignoreFilePaths]
+    except FileNotFoundError:
+        print('Unable to open File Ignore Config File, have the command line arguments been set?')
+        print(BANNER)
+        sys.exit()
+    return ignoreFilePaths
+
+# Read the template copyright file
+def GetCopyrightTemplate():
+    try:
+        with open(TEMPLATE_COPYRIGHT_FILE, 'r') as file:
+            copyrightTemplate = file.readlines()
+    except FileNotFoundError:
+        print('Unable to open Template Copyright File, have the command line arguments been set?')
+        print(BANNER)
+        sys.exit()
+    return copyrightTemplate
+
+def GetProjectRootDir():
+    return subprocess.run('git rev-parse --show-toplevel', shell=True, stdout=subprocess.PIPE).stdout.decode('utf-8').rstrip('\n') + '/'
+
+# Get the Copyright from the altered file
+def ParseFileCopyright(fileObject):
+    global issueCounter
+    copyrightFlag = False
+    copyrightInFile = {}
+    lineNumber = 1
+    for line in fileObject:
+        if 'LICENSE_START' in line:
+            copyrightFlag = True
+        if copyrightFlag:
+            copyrightInFile[lineNumber] = line
+        if 'LICENSE_END' in line:
+            break
+        lineNumber += 1
+
+    if not copyrightFlag:
+        print(fileObject.name + ' | no copyright found')
+        return {}, {}
+
+    copyrightSignatures = {}
+    copyrightLineNumbers = list(copyrightInFile.keys())
+    #Capture signature lines after LICENSE_START line
+    for lineNumber in copyrightLineNumbers:
+        if '=' not in copyrightInFile[lineNumber]:
+            copyrightSignatures[lineNumber] = copyrightInFile[lineNumber]
+            copyrightInFile.pop(lineNumber)
+        elif 'LICENSE_START' not in copyrightInFile[lineNumber]:
+            break
+
+    return (copyrightInFile, copyrightSignatures)
+
+# Remove the Block comment syntax
+def RemoveCommentBlock(fileCopyright):
+    # Comment Characters can very depending on file # *..
+    endOfCommentsIndex = list(fileCopyright.values())[0].index('=')
+    for key in fileCopyright:
+        fileCopyright[key] = fileCopyright[key][endOfCommentsIndex:]
+        if fileCopyright[key] == '':
+            fileCopyright[key] = '\n'
+
+    return fileCopyright
+
+def CheckCopyrightForFiles(alteredFiles, projectCommitters, committerEmailExtension):
+    issueCounter = 0
+    templateCopyright = GetCopyrightTemplate() #Get Copyright Template
+    projectRootDir = GetProjectRootDir()
+
+    for fileName in alteredFiles: # Not removed files
+        try:
+            with open(projectRootDir + fileName, 'r') as fileObject:
+                (fileCopyright, fileSignatures) = ParseFileCopyright(fileObject)
+
+            #Empty dict evaluates to false
+            if fileCopyright and fileSignatures:
+                fileCopyright = RemoveCommentBlock(fileCopyright)
+                issueCounter += CheckCopyrightFormat(fileCopyright, templateCopyright, projectRootDir + fileName)
+                committerCompany = projectCommitters[committerEmailExtension]
+                issueCounter += CheckCopyrightSignature(fileSignatures, committerCompany, projectRootDir + fileName)
+            else:
+                issueCounter += 1
+
+        except FileNotFoundError:
+            issueCounter += 1
+            print('Unable to find file ' + projectRootDir + fileName)
+    return issueCounter
+
+# Check that the filecopyright matches the template copyright and print comparison
+def CheckCopyrightFormat(copyrightInFile, templateCopyright, filePath):
+    issueCounter = 0
+    errorWithComparison = ''
+    for copyrightInFileKey, templateLine in zip(copyrightInFile, templateCopyright):
+        if copyrightInFile[copyrightInFileKey] != templateLine:
+            issueCounter += 1
+            errorWithComparison += filePath + ' | line ' + '{:2}'.format(copyrightInFileKey) + ' read \t  ' + repr(copyrightInFile[copyrightInFileKey]) + '\n'
+            errorWithComparison += filePath + ' | line ' + '{:2}'.format(copyrightInFileKey) + ' expected ' + repr(templateLine) + '\n'
+    if errorWithComparison != '':
+        print(errorWithComparison.rstrip('\n'))
+    return issueCounter
+
+# Check the signatures and compare with committer signature and current year
+def CheckCopyrightSignature(copyrightSignatures, committerCompany, filePath):
+    issueCounter = 0
+    errorWithSignature = ''
+    signatureExists = False #signatureExistsForCommitter
+    afterFirstLine = False #afterFirstCopyright
+    for key in copyrightSignatures:
+        if afterFirstLine and 'Modifications Copyright' not in copyrightSignatures[key]:
+            issueCounter += 1
+            errorWithSignature += filePath + ' | line ' + str(key) + ' expected Modifications Copyright\n'
+        elif not afterFirstLine and 'Copyright' not in copyrightSignatures[key]:
+            issueCounter += 1
+            errorWithSignature += filePath + ' | line ' + str(key) + ' expected Copyright\n'
+        if committerCompany in copyrightSignatures[key]:
+            signatureExists = True
+            signatureYear = int(re.findall(r'\d+', copyrightSignatures[key])[-1])
+            currentYear = datetime.date.today().year
+            if signatureYear != currentYear:
+                issueCounter += 1
+                errorWithSignature += filePath + ' | line ' + str(key) + ' update year to include ' + str(currentYear) + '\n'
+        afterFirstLine = True
+
+    if not signatureExists:
+        issueCounter += 1
+        errorWithSignature += filePath + ' | missing company name and year for ' + committerCompany
+
+    if errorWithSignature != '':
+        print(errorWithSignature.rstrip('\n'))
+
+    return issueCounter
+
+if __name__ == '__main__':
+    main()
\ No newline at end of file
diff --git a/checkstyle/src/main/resources/copyright-template.txt b/checkstyle/src/main/resources/copyright-template.txt
new file mode 100644
index 000000000..205e0caac
--- /dev/null
+++ b/checkstyle/src/main/resources/copyright-template.txt
@@ -0,0 +1,16 @@
+============LICENSE_START=======================================================
+================================================================================
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+SPDX-License-Identifier: Apache-2.0
+============LICENSE_END=========================================================
diff --git a/checkstyle/src/main/resources/ignore-files-config.csv b/checkstyle/src/main/resources/ignore-files-config.csv
new file mode 100644
index 000000000..4f7394fbb
--- /dev/null
+++ b/checkstyle/src/main/resources/ignore-files-config.csv
@@ -0,0 +1,6 @@
+file path
+*checkstyle/*
+*.json
+*.yang
+*.rst
+*.csv
\ No newline at end of file
diff --git a/checkstyle/src/main/resources/project-committers-config.csv b/checkstyle/src/main/resources/project-committers-config.csv
new file mode 100644
index 000000000..85ee43bda
--- /dev/null
+++ b/checkstyle/src/main/resources/project-committers-config.csv
@@ -0,0 +1,3 @@
+email,signature
+@est.tech,Nordix Foundation
+@bell.ca,Bell Canada
\ No newline at end of file
diff --git a/checkstyle/src/main/test_CopyrightCheck.py b/checkstyle/src/main/test_CopyrightCheck.py
new file mode 100644
index 000000000..177f9d4a5
--- /dev/null
+++ b/checkstyle/src/main/test_CopyrightCheck.py
@@ -0,0 +1,441 @@
+#  ============LICENSE_START=======================================================
+#  Copyright (C) 2022 Nordix Foundation
+#  ================================================================================
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#        http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+#  SPDX-License-Identifier: Apache-2.0
+#  ============LICENSE_END=========================================================
+
+import datetime
+import sys
+import unittest
+from unittest import mock
+from unittest.mock import MagicMock
+import io
+
+import CopyrightCheck
+
+BANNER = '=' * 120
+
+def MockStdout(command):
+    mock_stdout = MagicMock()
+    mock_stdout.configure_mock(**{"stdout.decode.return_value": command})
+    return mock_stdout
+
+class TestCopyrightCheck(unittest.TestCase):
+
+    @mock.patch('subprocess.run')
+    def test_PermissionsCheckFalse(self, mock_subprocess_run):
+        mock_subprocess_run.return_value = MockStdout('Permission denied')
+
+        capturedOutput = io.StringIO()
+        sys.stdout = capturedOutput  # Capture output to stdout
+        with self.assertRaises(SystemExit):
+            CopyrightCheck.PermissionsCheck()
+        sys.stdout = sys.__stdout__
+
+        self.assertEqual(capturedOutput.getvalue(),
+                         'Error, I may not have the necessary permissions. Exiting...\n' + BANNER + '\n')
+
+    @mock.patch('subprocess.run')
+    def test_PermissionsCheckTrue(self, mock_subprocess_run):
+        mock_subprocess_run.return_value = MockStdout(
+            'usage: git [--version] [--help] [-C <path>] [-c <name>=<value>]...')
+        CopyrightCheck.PermissionsCheck()   # Assert no error thrown
+
+    @mock.patch('CopyrightCheck.GetIgnoredFiles')
+    @mock.patch('subprocess.run')
+    def test_FindAlteredFiles(self, mock_subprocess_run, mock_GetIgnoredFiles):
+        mock_GetIgnoredFiles.return_value = ['.*.json', 'dir/.*']
+        mock_subprocess_run.return_value = MockStdout('File1.json\nFile2.java\nFile2.java\ndir/File3.java')
+        result = CopyrightCheck.FindAlteredFiles()
+        # Duplicates, .json and files in 'dir' removed
+        self.assertEqual(result, ['File2.java'])
+
+    @mock.patch('CopyrightCheck.GetIgnoredFiles')
+    @mock.patch('subprocess.run')
+    def test_FindAlteredFilesWithNoFileChanges(self, mock_subprocess_run, mock_GetIgnoredFiles):
+        mock_GetIgnoredFiles.return_value = ['.*.json', 'dir/.*']
+        mock_subprocess_run.return_value = MockStdout('File1.json\ndir/File3.java')
+        capturedOutput = io.StringIO()
+        sys.stdout = capturedOutput  # Capture output to stdout
+        result = CopyrightCheck.FindAlteredFiles()
+        sys.stdout = sys.__stdout__
+
+        self.assertEqual(result, [])
+        self.assertEqual(capturedOutput.getvalue(), '')
+
+    @mock.patch('subprocess.run')
+    def test_GetCommitterEmailExtension(self, mock_subprocess_run):
+        mock_subprocess_run.return_value = MockStdout('a.committer.name@address.com')
+        result = CopyrightCheck.GetCommitterEmailExtension()
+        self.assertEqual(result, '@address.com')
+
+    def test_ReadProjectCommittersConfigFile(self):
+        mock_open = mock.mock_open(read_data="email,signature\n@address.com,Company Name")
+        with mock.patch('builtins.open', mock_open):
+            result = CopyrightCheck.ReadProjectCommittersConfigFile()
+        self.assertEqual(result, {'@address.com': 'Company Name'})
+
+    @mock.patch('CopyrightCheck.open')
+    def test_ReadProjectCommittersConfigFileError(self, mock_OpenFile):
+        mock_OpenFile.side_effect = FileNotFoundError
+        capturedOutput = io.StringIO()
+        sys.stdout = capturedOutput  # Capture output to stdout
+        with self.assertRaises(SystemExit):
+            CopyrightCheck.ReadProjectCommittersConfigFile()
+        sys.stdout = sys.__stdout__
+        expectedOutput = ('Unable to open Project Committers Config File, have the command line arguments been set?\n' +
+                          BANNER + '\n')
+        self.assertEqual(capturedOutput.getvalue(), expectedOutput)
+
+    def test_CheckCommitterInConfigFileTrue(self):
+        committerEmailExtension = '@address.com'
+        projectCommitters = {'@address.com': 'Company Name'}
+        capturedOutput = io.StringIO()
+        sys.stdout = capturedOutput  # Capture output to stdout
+        result = CopyrightCheck.CheckCommitterInConfigFile(committerEmailExtension, projectCommitters)
+        sys.stdout = sys.__stdout__
+        self.assertTrue(result)
+        self.assertEqual(capturedOutput.getvalue(), "")
+
+    def test_CheckCommitterInConfigFileFalse(self):
+        committerEmailExtension = '@address.com'
+        projectCommitters = {'@anotheraddress.com': 'Another Company Name'}
+        capturedOutput = io.StringIO()
+        sys.stdout = capturedOutput  # Capture output to stdout
+        with self.assertRaises(SystemExit):
+            CopyrightCheck.CheckCommitterInConfigFile(committerEmailExtension, projectCommitters)
+        sys.stdout = sys.__stdout__
+        expectedOutput = ('Error, Committer email is not included in config file.\n' +
+                          'If your company is new to the project please make appropriate changes to project-committers-config.csv\n' +
+                          'for Copyright Check to work.\n' +
+                          'Exiting...\n' + BANNER + '\n')
+        self.assertEqual(capturedOutput.getvalue(), expectedOutput)
+
+    def test_GetIgnoredFiles(self):
+        mock_open = mock.mock_open(read_data="file path\n*checkstyle/*\n*.json")
+        with mock.patch('builtins.open', mock_open):
+            result = CopyrightCheck.GetIgnoredFiles()
+        self.assertEqual(result, [".*checkstyle/.*", ".*.json"])
+
+    @mock.patch('CopyrightCheck.open')
+    def test_GetIgnoredFilesError(self, mock_OpenFile):
+        mock_OpenFile.side_effect = FileNotFoundError
+        capturedOutput = io.StringIO()
+        sys.stdout = capturedOutput  # Capture output to stdout
+        with self.assertRaises(SystemExit):
+            CopyrightCheck.GetIgnoredFiles()
+        sys.stdout = sys.__stdout__
+        expectedOutput = ('Unable to open File Ignore Config File, have the command line arguments been set?\n' +
+                          BANNER + '\n')
+        self.assertEqual(capturedOutput.getvalue(), expectedOutput)
+
+    def test_GetCopyrightTemplate(self):
+        mock_open = mock.mock_open(read_data="****\nThis is a\nCopyright File\n****")
+        with mock.patch('builtins.open', mock_open):
+            result = CopyrightCheck.GetCopyrightTemplate()
+        self.assertEqual(result, ["****\n", "This is a\n", "Copyright File\n", "****"])
+
+    @mock.patch('CopyrightCheck.open')
+    def test_GetCopyrightTemplateError(self, mock_OpenFile):
+        mock_OpenFile.side_effect = FileNotFoundError
+        capturedOutput = io.StringIO()
+        sys.stdout = capturedOutput  # Capture output to stdout
+        with self.assertRaises(SystemExit):
+            CopyrightCheck.GetCopyrightTemplate()
+        sys.stdout = sys.__stdout__
+        expectedOutput = ('Unable to open Template Copyright File, have the command line arguments been set?\n' +
+                          BANNER + '\n')
+        self.assertEqual(capturedOutput.getvalue(), expectedOutput)
+
+    @mock.patch('subprocess.run')
+    def test_GetProjectRootDir(self, mock_subprocess_run):
+        mock_subprocess_run.return_value = MockStdout('project/root/dir\n')
+        result = CopyrightCheck.GetProjectRootDir()
+        self.assertEqual(result, 'project/root/dir/')
+
+
+    def test_ParseFileCopyright(self):
+        readFromFile = ["#Before lines will not be included\n",
+                        "#===LICENSE_START===\n",
+                        "#Copyright (C) 0000 Some Company\n",
+                        "#A line without signature\n",
+                        "#===============================\n",
+                        "#This is the start of the Copyright\n",
+                        "#===LICENSE_END===\n",
+                        "After lines will not be included"]
+        copyright, signatures = CopyrightCheck.ParseFileCopyright(readFromFile)
+        self.assertEqual(copyright, {2: "#===LICENSE_START===\n",
+                                     5: "#===============================\n",
+                                     6: "#This is the start of the Copyright\n",
+                                     7: "#===LICENSE_END===\n"})
+        self.assertEqual(signatures, {3: "#Copyright (C) 0000 Some Company\n",
+                                      4: "#A line without signature\n"})
+
+    def test_ParseFileCopyrightNoCopyright(self):
+        fileObject = io.StringIO("#This is not\na copyright\n")
+        fileObject.name = 'some/file/name'
+
+        capturedOutput = io.StringIO()
+        sys.stdout = capturedOutput  # Capture output to stdout
+        copyright, signatures = CopyrightCheck.ParseFileCopyright(fileObject)
+        sys.stdout = sys.__stdout__
+
+        self.assertEqual(copyright, {})
+        self.assertEqual(signatures, {})
+        self.assertEqual(capturedOutput.getvalue(), 'some/file/name | no copyright found\n')
+
+    def test_RemoveCommentBlock(self):
+        commentCharactersList = ['# ', '* ', '#  ', '*  ']
+
+        for commentCharacters in commentCharactersList:
+            copyright = {1: commentCharacters + '===LICENSE_START===\n',
+                         2: '\n',
+                         3: commentCharacters + 'This is the License\n',
+                         4: commentCharacters + '===LICENSE_END===\n'}
+            result = CopyrightCheck.RemoveCommentBlock(copyright)
+            self.assertEqual(result, {1: '===LICENSE_START===\n',
+                                      2: '\n',
+                                      3: 'This is the License\n',
+                                      4: '===LICENSE_END===\n'})
+
+    @mock.patch('CopyrightCheck.open')
+    @mock.patch('CopyrightCheck.GetProjectRootDir')
+    @mock.patch('CopyrightCheck.GetCopyrightTemplate')
+    def test_CheckCopyrightForFileNotFound(self, mock_GetCopyrightTemplate, mock_GetProjectRootDir, mock_OpenFile):
+        mock_GetCopyrightTemplate.return_value = 'some-copyright-template'
+        mock_GetProjectRootDir.return_value = 'some/project/root/dir/'
+        mock_OpenFile.side_effect = FileNotFoundError
+
+        capturedOutput = io.StringIO()
+        sys.stdout = capturedOutput  # Capture output to stdout
+        result = CopyrightCheck.CheckCopyrightForFiles(['some-file.java'], {}, [])
+        sys.stdout = sys.__stdout__
+
+        self.assertEqual(capturedOutput.getvalue(), 'Unable to find file some/project/root/dir/some-file.java\n')
+        self.assertEqual(result, 1)
+
+    @mock.patch('CopyrightCheck.ParseFileCopyright')
+    @mock.patch('CopyrightCheck.GetProjectRootDir')
+    @mock.patch('CopyrightCheck.GetCopyrightTemplate')
+    def test_CheckCopyrightForFileWithNoCopyright(self, mock_GetCopyrightTemplate, mock_GetProjectRootDir,
+                                                  mock_ParseFileCopyright):
+        mock_GetCopyrightTemplate.return_value = 'some-copyright-template'
+        mock_GetProjectRootDir.return_value = 'some/project/root/dir/'
+        mock_ParseFileCopyright.return_value = ({}, {})
+        mock_open = mock.mock_open(read_data="some-file-content")
+
+        capturedOutput = io.StringIO()
+        sys.stdout = capturedOutput  # Capture output to stdout
+        with mock.patch('builtins.open', mock_open):
+            result = CopyrightCheck.CheckCopyrightForFiles(['some-file.java'], {}, [])
+        sys.stdout = sys.__stdout__
+
+        self.assertEqual(capturedOutput.getvalue(), "")
+        self.assertEqual(result, 1)
+
+
+    @mock.patch('CopyrightCheck.CheckCopyrightSignature')
+    @mock.patch('CopyrightCheck.CheckCopyrightFormat')
+    @mock.patch('CopyrightCheck.ParseFileCopyright')
+    @mock.patch('CopyrightCheck.GetProjectRootDir')
+    @mock.patch('CopyrightCheck.GetCopyrightTemplate')
+    def test_CheckCopyrightForFilesWhichAreRight(self, mock_GetCopyrightTemplate, mock_GetProjectRootDir,
+                                                  mock_ParseFileCopyright, mock_CheckCopyrightFormat,
+                                                  mock_CheckCopyrightSignature):
+        mock_GetCopyrightTemplate.return_value = 'some-copyright-template'
+        mock_GetProjectRootDir.return_value = 'some/project/root/dir/'
+        mock_ParseFileCopyright.return_value = ({1: '# =some-copyright-line'}, {2: '# =some-signature-line'})
+        mock_open = mock.mock_open(read_data="# =some-file-content")
+        mock_CheckCopyrightFormat.return_value = 0
+        mock_CheckCopyrightSignature.return_value = 0
+
+        capturedOutput = io.StringIO()
+        sys.stdout = capturedOutput  # Capture output to stdout
+        with mock.patch('builtins.open', mock_open):
+            result = CopyrightCheck.CheckCopyrightForFiles(['some-file.java', 'another-file.java'], {'@address.com': 'Some Company'}, '@address.com')
+        sys.stdout = sys.__stdout__
+        self.assertEqual(result, 0)
+        self.assertEqual(capturedOutput.getvalue(), "")
+
+        mock_GetCopyrightTemplate.assert_called_once_with()
+        mock_GetProjectRootDir.assert_called_once_with()
+        self.assertEqual(mock_ParseFileCopyright.call_count, 2)
+        mock_CheckCopyrightFormat.assert_has_calls([
+            mock.call({1: '=some-copyright-line'}, 'some-copyright-template', 'some/project/root/dir/some-file.java'),
+            mock.call({1: '=some-copyright-line'}, 'some-copyright-template', 'some/project/root/dir/another-file.java')
+        ])
+        mock_CheckCopyrightSignature.assert_has_calls([
+            mock.call({2: '# =some-signature-line'}, 'Some Company', 'some/project/root/dir/some-file.java'),
+            mock.call({2: '# =some-signature-line'}, 'Some Company', 'some/project/root/dir/another-file.java')
+        ])
+        self.assertEqual(mock_CheckCopyrightFormat.call_count, 2)
+        self.assertEqual(mock_CheckCopyrightSignature.call_count, 2)
+
+
+    def test_CheckCopyrightFormatWhichIsWrong(self):
+        fileCopyright = {1: '---LICENSE_START---\n',
+                         2: 'This is the license typo\n',
+                         3: '',
+                         4: '===license_end===\n'}
+        templateCopyright = ['===LICENSE_START===\n',
+                             'This is the license\n',
+                             '\n',
+                             '===LICENSE_END===\n']
+
+        capturedOutput = io.StringIO()
+        sys.stdout = capturedOutput  # Capture output to stdout
+        result = CopyrightCheck.CheckCopyrightFormat(fileCopyright, templateCopyright, 'some/file/path')
+        sys.stdout = sys.__stdout__
+
+        expectedOutput = ("some/file/path | line  1 read \t  '---LICENSE_START---\\n'\n" +
+                          "some/file/path | line  1 expected '===LICENSE_START===\\n'\n" +
+                          "some/file/path | line  2 read \t  'This is the license typo\\n'\n" +
+                          "some/file/path | line  2 expected 'This is the license\\n'\n" +
+                          "some/file/path | line  3 read \t  ''\n" +
+                          "some/file/path | line  3 expected '\\n'\n" +
+                          "some/file/path | line  4 read \t  '===license_end===\\n'\n" +
+                          "some/file/path | line  4 expected '===LICENSE_END===\\n'\n")
+
+        self.assertEqual(capturedOutput.getvalue(), expectedOutput)
+        self.assertEqual(result, 4)
+
+    def test_CheckCopyrightFormatWhichIsCorrect(self):
+        fileCopyright = {1: '===LICENSE_START===\n',
+                         2: 'This is the license\n',
+                         3: '\n',
+                         4: '===LICENSE_END===\n'}
+        templateCopyright = ['===LICENSE_START===\n',
+                             'This is the license\n',
+                             '\n',
+                             '===LICENSE_END===\n']
+
+        capturedOutput = io.StringIO()
+        sys.stdout = capturedOutput  # Capture output to stdout
+        result = CopyrightCheck.CheckCopyrightFormat(fileCopyright, templateCopyright, 'some/file/path')
+        sys.stdout = sys.__stdout__
+
+        self.assertEqual(capturedOutput.getvalue(), "")
+        self.assertEqual(result, 0)
+
+    def test_CheckCopyrightSignatureWhichIsWrong(self):
+        fileSignatures = {1: "Trigger expected Copy-right",
+                          2: "Trigger expected Mod Copy-right"}
+        capturedOutput = io.StringIO()
+        sys.stdout = capturedOutput  # Capture output to stdout
+        result = CopyrightCheck.CheckCopyrightSignature(fileSignatures, 'Some-Company', 'some/file/path')
+        sys.stdout = sys.__stdout__
+
+        expectedOutput = ("some/file/path | line 1 expected Copyright\n" +
+                          "some/file/path | line 2 expected Modifications Copyright\n" +
+                          "some/file/path | missing company name and year for Some-Company\n")
+
+        self.assertEqual(capturedOutput.getvalue(), expectedOutput)
+        self.assertEqual(result, 3)
+
+    def test_CheckCopyrightSignatureWhichHasWrongYear(self):
+        currentYear = datetime.date.today().year
+        fileSignatures = {1: "Copyright (C) 1999 Some-Company"}
+
+        capturedOutput = io.StringIO()
+        sys.stdout = capturedOutput  # Capture output to stdout
+        result = CopyrightCheck.CheckCopyrightSignature(fileSignatures, 'Some-Company', 'some/file/path')
+        sys.stdout = sys.__stdout__
+
+        self.assertEqual(capturedOutput.getvalue(),
+                         "some/file/path | line 1 update year to include " + str(currentYear) + "\n")
+        self.assertEqual(result, 1)
+
+    def test_CheckCopyrightSignatureWhichIsRight(self):
+        currentYear = datetime.date.today().year
+        fileSignatures = {1: "Copyright (C) " + str(currentYear) + " Some-Company"}
+
+        capturedOutput = io.StringIO()
+        sys.stdout = capturedOutput  # Capture output to stdout
+        result = CopyrightCheck.CheckCopyrightSignature(fileSignatures, 'Some-Company', 'some/file/path')
+        sys.stdout = sys.__stdout__
+
+        self.assertEqual(capturedOutput.getvalue(), "")
+        self.assertEqual(result, 0)
+
+    @mock.patch('CopyrightCheck.CheckCopyrightForFiles')
+    @mock.patch('CopyrightCheck.FindAlteredFiles')
+    @mock.patch('CopyrightCheck.CheckCommitterInConfigFile')
+    @mock.patch('CopyrightCheck.ReadProjectCommittersConfigFile')
+    @mock.patch('CopyrightCheck.GetCommitterEmailExtension')
+    @mock.patch('CopyrightCheck.PermissionsCheck')
+    def test_Main(self, mock_PermissionsCheck, mock_GetCommitterEmailExtension, mock_ReadProjectCommittersConfigFile,
+                  mock_CheckCommitterInConfigFile, mock_FindAlteredFiles, mock_CheckCopyrightForFiles):
+
+        mock_GetCommitterEmailExtension.return_value = '@address.com'
+        mock_ReadProjectCommittersConfigFile.return_value = {'@address.com', 'Some Company'}
+        mock_FindAlteredFiles.return_value = ['some-file.java']
+        mock_CheckCopyrightForFiles.return_value = 5
+
+        capturedOutput = io.StringIO()
+        sys.stdout = capturedOutput  # Capture output to stdout
+
+        CopyrightCheck.main()
+
+        sys.stdout = sys.__stdout__
+
+        expectedOutput = (BANNER + '\nCopyright Check Python Script:\n' +
+                          '5 issue(s) found after 1 altered file(s) checked\n' +
+                          BANNER + '\n')
+
+        self.assertEqual(capturedOutput.getvalue(), expectedOutput)
+
+        mock_PermissionsCheck.assert_called_once_with()
+        mock_GetCommitterEmailExtension.assert_called_once_with()
+        mock_ReadProjectCommittersConfigFile.assert_called_once_with()
+        mock_CheckCommitterInConfigFile.assert_called_once_with('@address.com', {'@address.com', 'Some Company'})
+        mock_FindAlteredFiles.assert_called_once_with()
+        mock_CheckCopyrightForFiles.assert_called_once_with(['some-file.java'], {'@address.com', 'Some Company'}, '@address.com')
+
+    @mock.patch('CopyrightCheck.CheckCopyrightForFiles')
+    @mock.patch('CopyrightCheck.FindAlteredFiles')
+    @mock.patch('CopyrightCheck.CheckCommitterInConfigFile')
+    @mock.patch('CopyrightCheck.ReadProjectCommittersConfigFile')
+    @mock.patch('CopyrightCheck.GetCommitterEmailExtension')
+    @mock.patch('CopyrightCheck.PermissionsCheck')
+    def test_MainNoFiles(self, mock_PermissionsCheck, mock_GetCommitterEmailExtension, mock_ReadProjectCommittersConfigFile,
+                  mock_CheckCommitterInConfigFile, mock_FindAlteredFiles, mock_CheckCopyrightForFiles):
+
+        mock_GetCommitterEmailExtension.return_value = '@address.com'
+        mock_ReadProjectCommittersConfigFile.return_value = {'@address.com', 'Some Company'}
+        mock_FindAlteredFiles.return_value = []
+
+        capturedOutput = io.StringIO()
+        sys.stdout = capturedOutput  # Capture output to stdout
+
+        CopyrightCheck.main()
+
+        sys.stdout = sys.__stdout__
+
+        expectedOutput = (BANNER + '\nCopyright Check Python Script:\n' +
+                          '0 issue(s) found after 0 altered file(s) checked\n' +
+                          BANNER + '\n')
+
+        self.assertEqual(capturedOutput.getvalue(), expectedOutput)
+
+        mock_PermissionsCheck.assert_called_once_with()
+        mock_GetCommitterEmailExtension.assert_called_once_with()
+        mock_ReadProjectCommittersConfigFile.assert_called_once_with()
+        mock_CheckCommitterInConfigFile.assert_called_once_with('@address.com', {'@address.com', 'Some Company'})
+        mock_FindAlteredFiles.assert_called_once_with()
+        mock_CheckCopyrightForFiles.assert_not_called()
+
+
+if __name__ == '__main__':
+    unittest.main()
-- 
2.16.6