GitHelperTest implemented

Author: igorsgm

tests/Unit/Traits/GitHelperTest.php

@@ -0,0 +1,53 @@
+<?php
+
+use Igorsgm\GitHooks\Traits\GitHelper;
+use Symfony\Component\Process\Exception\ProcessFailedException;
+
+uses(GitHelper::class);
+beforeEach(function () {
+    $this->initializeGitAsTempDirectory();
+});
+
+test('Gets list of changed files', function () {
+    chdir(__DIR__);
+
+    expect($this->getListOfChangedFiles())->toBe(
+        shell_exec('git status --short')
+    );
+});
+
+test('Gets last commit text from git log', function () {
+    chdir(__DIR__);
+
+    expect($this->getLastCommitFromLog())->toBe(
+        shell_exec('git log -1 HEAD')
+    );
+});
+
+test('Throws ProcessFailedException on errored git command', function () {
+    expect(fn () => $this->runCommandAndGetOutput('git --wrong'))
+        ->toThrow(ProcessFailedException::class);
+});
+
+test('Gets Commit message content from .git file', function () {
+    $gitFileName = 'COMMIT_MESSAGE';
+    $messageText = 'test message';
+
+    $this->makeTempFile($gitFileName, $messageText);
+    $gitFilePath = $this->getTempFilePath($gitFileName);
+
+    expect($this->getCommitMessageContentFromFile($gitFilePath))
+        ->toBe($messageText);
+});
+
+test('Updates Commit message content in .git file', function () {
+    $gitFileName = 'COMMIT_MESSAGE';
+    $messageText = 'test message';
+
+    $this->makeTempFile($gitFileName, $messageText);
+    $gitFilePath = $this->getTempFilePath($gitFileName);
+
+    $newMessage = 'new message 1';
+    $this->updateCommitMessageContentInFile($gitFilePath, $newMessage);
+    expect(file_get_contents($gitFilePath))->toBe($newMessage);
+});