From ce25a212eefb0bde6360b74fcc5e971b35f049f6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andreas=20M=C3=B6ller?= <am@localheinz.com>
Date: Sun, 24 Jan 2021 14:06:51 +0100
Subject: [PATCH] Enhancement: Implement DurationComparator

---
 CHANGELOG.md                                  |  4 +-
 src/Comparator/DurationComparator.php         | 32 ++++++++++
 .../Comparator/DurationComparatorTest.php     | 59 +++++++++++++++++++
 3 files changed, 94 insertions(+), 1 deletion(-)
 create mode 100644 src/Comparator/DurationComparator.php
 create mode 100644 test/Unit/Comparator/DurationComparatorTest.php

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 734ddbba..88689aa2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,7 @@ For a full diff see [`7afa59c...main`][7afa59c...main].
 * Added `Subscriber\TestPreparedSubscriber` ([#12]), by [@localheinz]
 * Added `Subscriber\TestPassedSubscriber` ([#13]), by [@localheinz]
 * Added `Formatter\ToMillisecondsDurationFormatter` ([#17]), by [@localheinz]
+* Added `Comparator\DurationComparator` ([#18]), by [@localheinz]
 
 [7afa59c...main]: https://github.com/ergebnis/phpunit-slow-test-detector/compare/7afa59c...main
 
@@ -22,6 +23,7 @@ For a full diff see [`7afa59c...main`][7afa59c...main].
 [#8]: https://github.com/ergebnis/phpunit-slow-test-detector/pull/8
 [#12]: https://github.com/ergebnis/phpunit-slow-test-detector/pull/12
 [#13]: https://github.com/ergebnis/phpunit-slow-test-detector/pull/13
-[#17]: https://github.com/ergebnis/phpunit-slow-test-detector/pull/137
+[#17]: https://github.com/ergebnis/phpunit-slow-test-detector/pull/17
+[#18]: https://github.com/ergebnis/phpunit-slow-test-detector/pull/18
 
 [@localheinz]: https://github.com/localheinz
diff --git a/src/Comparator/DurationComparator.php b/src/Comparator/DurationComparator.php
new file mode 100644
index 00000000..9524449c
--- /dev/null
+++ b/src/Comparator/DurationComparator.php
@@ -0,0 +1,32 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * Copyright (c) 2021 Andreas Möller
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE.md file that was distributed with this source code.
+ *
+ * @see https://github.com/ergebnis/phpunit-slow-test-detector
+ */
+
+namespace Ergebnis\PHPUnit\SlowTestDetector\Comparator;
+
+use PHPUnit\Event;
+
+final class DurationComparator
+{
+    public function compare(Event\Telemetry\Duration $one, Event\Telemetry\Duration $two): int
+    {
+        if ($one->isLessThan($two)) {
+            return -1;
+        }
+
+        if ($one->isGreaterThan($two)) {
+            return 1;
+        }
+
+        return 0;
+    }
+}
diff --git a/test/Unit/Comparator/DurationComparatorTest.php b/test/Unit/Comparator/DurationComparatorTest.php
new file mode 100644
index 00000000..eb45ada2
--- /dev/null
+++ b/test/Unit/Comparator/DurationComparatorTest.php
@@ -0,0 +1,59 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * Copyright (c) 2021 Andreas Möller
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE.md file that was distributed with this source code.
+ *
+ * @see https://github.com/ergebnis/phpunit-slow-test-detector
+ */
+
+namespace Ergebnis\PHPUnit\SlowTestDetector\Test\Unit\Comparator;
+
+use Ergebnis\PHPUnit\SlowTestDetector\Comparator\DurationComparator;
+use Ergebnis\Test\Util;
+use PHPUnit\Event;
+use PHPUnit\Framework;
+
+/**
+ * @internal
+ *
+ * @covers \Ergebnis\PHPUnit\SlowTestDetector\Comparator\DurationComparator
+ */
+final class DurationComparatorTest extends Framework\TestCase
+{
+    use Util\Helper;
+
+    public function testReturnsMinusOneWhenOneIsLessThanTwo(): void
+    {
+        $one = Event\Telemetry\Duration::fromSeconds(5);
+        $two = Event\Telemetry\Duration::fromSeconds(6);
+
+        $comparator = new DurationComparator();
+
+        self::assertSame(-1, $comparator->compare($one, $two));
+    }
+
+    public function testReturnsZeroWhenOneEqualsTwo(): void
+    {
+        $one = Event\Telemetry\Duration::fromSeconds(5);
+        $two = Event\Telemetry\Duration::fromSeconds(5);
+
+        $comparator = new DurationComparator();
+
+        self::assertSame(0, $comparator->compare($one, $two));
+    }
+
+    public function testReturnsPlusOneWhenOneIsGreaterThanTwo(): void
+    {
+        $one = Event\Telemetry\Duration::fromSeconds(5);
+        $two = Event\Telemetry\Duration::fromSeconds(4);
+
+        $comparator = new DurationComparator();
+
+        self::assertSame(1, $comparator->compare($one, $two));
+    }
+}