Merge pull request #173 from elliotchance/1.4/173-is-a-boolean

? is a boolean

README.md

@@ -114,7 +114,11 @@ Matchers
 ### Booleans
 
 * `false` - Always fail.
+* `? is a boolean` - Assert a value is true or false.
+  * `? is a bool`
 * `? is false` - Assert value is false.
+* `? is not a boolean` - Assert a value is not true or false.
+  * `? is not a bool`
 * `? is true` - Assert a value is true.
 * `true` - Always pass.
 

src/Concise/Matcher/IsABoolean.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Concise\Matcher;
+
+class IsABoolean extends AbstractMatcher
+{
+    public function supportedSyntaxes()
+    {
+        return array(
+            '? is a boolean' => 'Assert a value is true or false.',
+            '? is a bool' => 'Assert a value is true or false.',
+        );
+    }
+
+    public function match($syntax, array $data = array())
+    {
+        return is_bool($data[0]);
+    }
+
+    public function getTags()
+    {
+        return array(Tag::BOOLEANS);
+    }
+}

src/Concise/Matcher/IsNotABoolean.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Concise\Matcher;
+
+class IsNotABoolean extends IsABoolean
+{
+    public function supportedSyntaxes()
+    {
+        return array(
+            '? is not a boolean' => 'Assert a value is not true or false.',
+            '? is not a bool' => 'Assert a value is not true or false.',
+        );
+    }
+
+    public function match($syntax, array $data = array())
+    {
+        return !parent::match(null, $data);
+    }
+
+    public function getTags()
+    {
+        return array(Tag::BOOLEANS);
+    }
+}

tests/Concise/Matcher/IsABooleanTest.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace Concise\Matcher;
+
+class IsABooleanTest extends AbstractMatcherTestCase
+{
+    public function setUp()
+    {
+        parent::setUp();
+        $this->matcher = new IsABoolean();
+    }
+
+    public function testTrueIsABoolean()
+    {
+        $this->assert(true, is_a_boolean);
+    }
+
+    public function testAStringIsNotABoolean()
+    {
+        $this->assertFailure("true", is_a_boolean);
+    }
+
+    public function testFalseIsABoolean()
+    {
+        $this->assert(false, is_a_boolean);
+    }
+
+    public function testAlternativeShorterSyntax()
+    {
+        $this->assert(true, is_a_bool);
+    }
+}

tests/Concise/Matcher/IsNotABooleanTest.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace Concise\Matcher;
+
+class IsNotABooleanTest extends AbstractMatcherTestCase
+{
+    public function setUp()
+    {
+        parent::setUp();
+        $this->matcher = new IsNotABoolean();
+    }
+
+    public function testTrueIsABoolean()
+    {
+        $this->assertFailure(true, is_not_a_boolean);
+    }
+
+    public function testAStringIsNotABoolean()
+    {
+        $this->assert("true", is_not_a_boolean);
+    }
+
+    public function testFalseIsABoolean()
+    {
+        $this->assertFailure(false, is_not_a_boolean);
+    }
+
+    public function testAlternativeShorterSyntax()
+    {
+        $this->assertFailure(true, is_not_a_bool);
+    }
+}