Add more code coverage

tests/ContextTest.php

@@ -77,6 +77,16 @@ public function it_counts(): void
     {
         $context = new Context(['env' => 'prod', 'foo' => 'bar']);
         self::assertCount(2, $context);
+        self::assertFalse($context->isEmpty());
+    }
+
+    /**
+     * @test
+     */
+    public function it_is_empty_by_default(): void
+    {
+        $context = new Context();
+        self::assertTrue($context->isEmpty());
     }
 
     /**

tests/CronJobTest.php

@@ -0,0 +1,37 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Setono\CronBuilder;
+
+use Cron\CronExpression;
+use PHPUnit\Framework\TestCase;
+
+final class CronJobTest extends TestCase
+{
+    /**
+     * @test
+     */
+    public function it_constructs(): void
+    {
+        $cronJob = new CronJob('0 0 * * *', '/usr/bin/php /home/johndoe/public_html/send-report.php', 'Run every day at midnight');
+
+        self::assertSame('0 0 * * *', (string) $cronJob->schedule);
+        self::assertSame('/usr/bin/php /home/johndoe/public_html/send-report.php', $cronJob->command);
+        self::assertSame('Run every day at midnight', $cronJob->description);
+
+        self::assertSame('0 0 * * * /usr/bin/php /home/johndoe/public_html/send-report.php # Run every day at midnight', (string) $cronJob);
+    }
+
+    /**
+     * @test
+     */
+    public function it_constructs_with_expression(): void
+    {
+        $cronJob = new CronJob(new CronExpression('0 0 * * *'), '/usr/bin/php /home/johndoe/public_html/send-report.php', 'Run every day at midnight');
+
+        self::assertSame('0 0 * * *', (string) $cronJob->schedule);
+        self::assertSame('/usr/bin/php /home/johndoe/public_html/send-report.php', $cronJob->command);
+        self::assertSame('Run every day at midnight', $cronJob->description);
+    }
+}