Improve test coverage.

tests/Unit/Rules/IsDateOrTimeTest.php

@@ -0,0 +1,74 @@
+<?php
+/**
+ * IsDateOrTimeTest.php
+ * Copyright (c) 2019 thegrumpydictator@gmail.com
+ *
+ * This file is part of Firefly III.
+ *
+ * Firefly III is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Firefly III is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Firefly III. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+namespace Tests\Unit\Rules;
+
+
+use FireflyIII\Rules\IsDateOrTime;
+use Log;
+use Tests\TestCase;
+
+/**
+ * Class IsDateOrTimeTest
+ */
+class IsDateOrTimeTest extends TestCase
+{
+    /**
+     *
+     */
+    public function setUp(): void
+    {
+        parent::setUp();
+        Log::info(sprintf('Now in %s.', get_class($this)));
+    }
+
+    /**
+     * @covers \FireflyIII\Rules\IsDateOrTime
+     */
+    public function testFalse(): void
+    {
+        $attribute = 'not-important';
+        $values    = ['20xx-01-x','1234567890', '2xx0101', '', false];
+
+        /** @var mixed $value */
+        foreach ($values as $value) {
+            $engine = new IsDateOrTime();
+            $this->assertFalse($engine->passes($attribute, $value), $value);
+        }
+    }
+
+    /**
+     * @covers \FireflyIII\Rules\IsDateOrTime
+     */
+    public function testTrue(): void
+    {
+        $attribute = 'not-important';
+        $values    = ['2019-01-01', '20190101', '2019-01-01 12:12:12', '12:12:12'];
+
+        /** @var mixed $value */
+        foreach ($values as $value) {
+            $engine = new IsDateOrTime();
+            $this->assertTrue($engine->passes($attribute, $value));
+        }
+    }
+
+
+}