ISSUE-15: Implemented unit-tests

Author: raymondschouten

tests/BooleanToStringTransformerTest.php

@@ -0,0 +1,183 @@
+<?php
+/**
+ * Copyright (c) 2017 DarkWeb Design
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+namespace DarkWebDesign\SymfonyAddon\Transformer\Tests;
+
+use DarkWebDesign\SymfonyAddon\Transformer\BooleanToStringTransformer;
+use PHPUnit_Framework_TestCase;
+use stdClass;
+
+class BooleanToStringTransformerTest extends PHPUnit_Framework_TestCase
+{
+    /**
+     * @param string $trueValue
+     * @param string $falseValue
+     *
+     * @dataProvider providerTrueFalseValue
+     */
+    public function testTransform($trueValue, $falseValue)
+    {
+        $transformer = new BooleanToStringTransformer($trueValue, $falseValue);
+
+        $returnValue = $transformer->transform(true);
+
+        $this->assertSame($trueValue, $returnValue);
+
+        $returnValue = $transformer->transform(false);
+
+        $this->assertSame($falseValue, $returnValue);
+    }
+
+    public function testTransformNull()
+    {
+        $transformer = new BooleanToStringTransformer();
+
+        $returnValue = $transformer->transform(null);
+
+        $this->assertNull($returnValue);
+    }
+
+    /**
+     * @param mixed $value
+     *
+     * @dataProvider providerNoBool
+     *
+     * @expectedException \Symfony\Component\Form\Exception\TransformationFailedException
+     * @expectedExceptionMessage Expected a boolean.
+     */
+    public function testTransformNoBool($value)
+    {
+        $transformer = new BooleanToStringTransformer();
+
+        $transformer->transform($value);
+    }
+
+    /**
+     * @param string $trueValue
+     * @param string $falseValue
+     *
+     * @dataProvider providerTrueFalseValue
+     */
+    public function testReverseTransform($trueValue, $falseValue)
+    {
+        $transformer = new BooleanToStringTransformer($trueValue, $falseValue);
+
+        $returnValue = $transformer->reverseTransform($trueValue);
+
+        $this->assertTrue($returnValue);
+
+        $returnValue = $transformer->reverseTransform($falseValue);
+
+        $this->assertFalse($returnValue);
+    }
+
+    public function testReverseTransformNull()
+    {
+        $transformer = new BooleanToStringTransformer();
+
+        $returnValue = $transformer->reverseTransform(null);
+
+        $this->assertNull($returnValue);
+    }
+
+    public function testReverseTransformEmptyString()
+    {
+        $transformer = new BooleanToStringTransformer();
+
+        $returnValue = $transformer->reverseTransform('');
+
+        $this->assertNull($returnValue);
+    }
+
+    /**
+     * @param mixed $value
+     *
+     * @dataProvider providerNoScalar
+     *
+     * @expectedException \Symfony\Component\Form\Exception\TransformationFailedException
+     * @expectedExceptionMessage Expected a scalar.
+     */
+    public function testReverseTransformNoScalar($value)
+    {
+        $transformer = new BooleanToStringTransformer();
+
+        $transformer->reverseTransform($value);
+    }
+
+    /**
+     * @param string $trueValue
+     * @param string $falseValue
+     *
+     * @dataProvider providerTrueFalseValue
+     */
+    public function testReverseTransformInvalidString($trueValue, $falseValue)
+    {
+        $transformer = new BooleanToStringTransformer($trueValue, $falseValue);
+
+        $this->setExpectedException(
+            'Symfony\Component\Form\Exception\TransformationFailedException',
+            sprintf('Expected a string "%s" or "%s".', $trueValue, $falseValue)
+        );
+
+        $transformer->reverseTransform('foo');
+    }
+
+    /**
+     * @return array[]
+     */
+    public function providerTrueFalseValue()
+    {
+        return array(
+            'true/false' => array('true', 'false'),
+            'yes/no' => array('yes', 'no'),
+            'on/off' => array('on', 'off'),
+            '1/0' => array('1', '0'),
+        );
+    }
+
+    /**
+     * @return array[]
+     */
+    public function providerNoBool()
+    {
+        return array(
+            'int'      => array(1),
+            'float'    => array(1.2),
+            'string'   => array('foo'),
+            'array'    => array(array('foo', 'bar')),
+            'object'   => array(new stdClass),
+            'resource' => array(tmpfile()),
+            'callable' => array(function () {})
+        );
+    }
+
+    /**
+     * @return array[]
+     */
+    public function providerNoScalar()
+    {
+        return array(
+            'array'    => array(array('foo', 'bar')),
+            'object'   => array(new stdClass),
+            'resource' => array(tmpfile()),
+            'callable' => array(function () {})
+        );
+    }
+}