Add tests for RunCommand (#273)

bmitch · Dec 17, 2020 · 37493b0 · 37493b0
1 parent 77ed001
commit 37493b0
Showing 1 changed file with 54 additions and 0 deletions.
diff --git a/tests/Integration/Command/RunCommandTest.php b/tests/Integration/Command/RunCommandTest.php
@@ -5,14 +5,23 @@
 use Churn\Command\RunCommand;
 use Churn\Tests\BaseTestCase;
 use DI\ContainerBuilder;
+use function file_get_contents;
+use function is_file;
+use function json_decode;
 use Symfony\Component\Console\Application;
 use Symfony\Component\Console\Tester\CommandTester;
+use function sys_get_temp_dir;
+use function tempnam;
+use function unlink;
 
 class RunCommandTest extends BaseTestCase
 {
     /** @var CommandTester */
     private $commandTester;
 
+    /** @var string|null */
+    private $tmpFile;
+
     protected function setUp()
     {
         $container = ContainerBuilder::buildDevContainer();
@@ -25,6 +34,10 @@ protected function setUp()
     protected function tearDown()
     {
         $this->commandTester = null;
+
+        if ($this->tmpFile !== null && is_file($this->tmpFile)) {
+            unlink($this->tmpFile);
+        }
     }
 
     /** @test */
@@ -36,4 +49,45 @@ public function it_displays_the_logo_at_the_beginning_by_default()
         $this->assertEquals(0, $exitCode);
         $this->assertEquals(RunCommand::LOGO, substr($display, 0, strlen(RunCommand::LOGO)));
     }
+
+    /** @test */
+    public function it_can_return_a_json_report()
+    {
+        $exitCode = $this->commandTester->execute(['paths' => [realpath(__DIR__ . '/../..')], '--format' => 'json']);
+        $data = json_decode($this->commandTester->getDisplay(), true);
+
+        $this->assertEquals(0, $exitCode);
+        $this->assertReport($data);
+    }
+
+    /** @test */
+    public function it_can_write_a_json_report()
+    {
+        $this->tmpFile = tempnam(sys_get_temp_dir(), 'churn-test-');
+        $exitCode = $this->commandTester->execute([
+            'paths' => [realpath(__DIR__ . '/../..')],
+            '--format' => 'json',
+            '--output' => $this->tmpFile,
+        ]);
+        $display = $this->commandTester->getDisplay();
+
+        $this->assertEquals(0, $exitCode);
+        $this->assertEquals(RunCommand::LOGO, substr($display, 0, strlen(RunCommand::LOGO)));
+
+        $this->assertFileExists($this->tmpFile);
+        $data = json_decode(file_get_contents($this->tmpFile), true);
+        $this->assertReport($data);
+    }
+
+    private function assertReport($data): void
+    {
+        $i = 0;
+        foreach ($data as $key => $value) {
+            $this->assertEquals($i++, $key);
+            $this->assertArrayHasKey('file', $value);
+            $this->assertArrayHasKey('commits', $value);
+            $this->assertArrayHasKey('complexity', $value);
+            $this->assertArrayHasKey('score', $value);
+        }
+    }
 }