fix: make test more stable

Author: shyim

tests/OptionsTest.php

@@ -13,24 +13,37 @@
 
 use Composer\IO\IOInterface;
 use PHPUnit\Framework\TestCase;
+use Symfony\Component\Process\Process;
 use Symfony\Flex\Options;
 
 class OptionsTest extends TestCase
 {
     public function testShouldWrite()
     {
+        @mkdir(FLEX_TEST_DIR);
+        (new Process(['git', 'init'], FLEX_TEST_DIR))->mustRun();
+        (new Process(['git', 'config', 'user.name', 'Unit test'], FLEX_TEST_DIR))->mustRun();
+        (new Process(['git', 'config', 'user.email', ''], FLEX_TEST_DIR))->mustRun();
+
+        $filePath = FLEX_TEST_DIR . '/a.txt';
+        file_put_contents($filePath, 'a');
+        (new Process(['git', 'add', '-A'], FLEX_TEST_DIR))->mustRun();
+        (new Process(['git', 'commit', '-m', 'setup of original files'], FLEX_TEST_DIR))->mustRun();
+
+        file_put_contents($filePath, 'b');
+
         $this->assertTrue((new Options([], null))->shouldWriteFile('non-existing-file.txt', false, false));
-        $this->assertFalse((new Options([], null))->shouldWriteFile(__FILE__, false, false));
+        $this->assertFalse((new Options([], null))->shouldWriteFile($filePath, false, false));
 
         // We don't have an IO, so we don't write the file
-        $this->assertFalse((new Options([], null))->shouldWriteFile(__FILE__, true, false));
+        $this->assertFalse((new Options([], null))->shouldWriteFile($filePath, true, false));
 
         // We have an IO, and it allowed to write the file
         $io = $this->createMock(IOInterface::class);
         $io->expects($this->once())->method('askConfirmation')->willReturn(true);
-        $this->assertTrue((new Options([], $io))->shouldWriteFile(__FILE__, true, false));
+        $this->assertTrue((new Options([], $io))->shouldWriteFile($filePath, true, false));
 
         // We skip all questions, so we're able to write
-        $this->assertTrue((new Options([], null))->shouldWriteFile(__FILE__, true, true));
+        $this->assertTrue((new Options([], null))->shouldWriteFile($filePath, true, true));
     }
 }