Improve unit test of time assertion

Author: Jacob Middag

test/unit/TinyPluginTest.php

@@ -115,7 +115,7 @@ public function testCompressShouldUpdateMetadata() {
 
         $metadata = $this->wp->getMetadata(1, 'tiny_compress_images', true);
         foreach ($metadata as $key => $values) {
-            $this->assertEquals(time(), $values['end'], 2);
+            $this->assertBetween(-1, +1, $values['end'] - time());
             unset($metadata[$key]['end']);
             unset($metadata[$key]['start']);
         }

test/unit/TinyTestCase.php

@@ -27,4 +27,9 @@ protected function setUp() {
 
     protected function tearDown() {
     }
+
+    protected function assertBetween($lower_bound, $upper_bound, $actual, $message='') {
+        $this->assertGreaterThanOrEqual($lower_bound, $actual, $message);
+        $this->assertLessThanOrEqual($upper_bound, $actual, $message);
+    }
 }