Added argument to StartsWith expander

Author: norberttech

src/Coduo/PHPMatcher/Matcher/Pattern/Expander/StartsWith.php

@@ -16,13 +16,19 @@ class StartsWith implements PatternExpander
      * @var null|string
      */
     private $error;
+    /**
+     * @var bool
+     */
+    private $ignoreCase;
 
     /**
      * @param string $stringBeginning
+     * @param bool $ignoreCase
      */
-    public function __construct($stringBeginning)
+    public function __construct($stringBeginning, $ignoreCase = false)
     {
         $this->stringBeginning = $stringBeginning;
+        $this->ignoreCase = $ignoreCase;
     }
 
     /**
@@ -36,7 +42,11 @@ public function match($value)
             return false;
         }
 
-        if (!empty($this->stringBeginning) && strpos($value, $this->stringBeginning) !== 0) {
+        if (empty($this->stringBeginning)) {
+            return true;
+        }
+
+        if ($this->matchValue($value)) {
             $this->error = sprintf("string \"%s\" doesn't starts with string \"%s\".", $value, $this->stringBeginning);
             return false;
         }
@@ -51,4 +61,15 @@ public function getError()
     {
         return $this->error;
     }
+
+    /**
+     * @param $value
+     * @return bool
+     */
+    protected function matchValue($value)
+    {
+        return $this->ignoreCase
+            ? strpos(strtolower($value), strtolower($this->stringBeginning)) !== 0
+            : strpos($value, $this->stringBeginning) !== 0;
+    }
 }

tests/Coduo/PHPMatcher/Matcher/Pattern/Expander/StartsWithTest.php

@@ -8,20 +8,40 @@
 class StartsWithTest extends \PHPUnit_Framework_TestCase
 {
     /**
-     * @dataProvider validCasesProvider
+     * @dataProvider notIgnoringCaseExamplesProvider
      */
-    public function test_valid_cases($stringBeginning, $value)
+    public function test_examples_not_ignoring_case($stringBeginning, $value, $expectedResult)
     {
         $expander = new StartsWith($stringBeginning);
+        $this->assertEquals($expectedResult, $expander->match($value));
+    }
+
+    public static function notIgnoringCaseExamplesProvider()
+    {
+        return array(
+            array("lorem", "lorem ipsum", true),
+            array("lorem", "Lorem ipsum", false),
+            array("", "lorem ipsum", true),
+            array("lorem", "lorem ipsum", true),
+            array("ipsum", "lorem ipsum", false)
+        );
+    }
+
+    /**
+     * @dataProvider ignoringCaseExamplesProvider
+     */
+    public function test_examples_ignoring_case($stringBeginning, $value, $expectedResult)
+    {
+        $expander = new StartsWith($stringBeginning, true);
         $this->assertTrue($expander->match($value));
     }
 
-    public static function validCasesProvider()
+    public static function ignoringCaseExamplesProvider()
     {
         return array(
-            array("lorem", "lorem ipsum"),
-            array("", "lorem ipsum"),
-            array("lorem", "lorem ipsum")
+            array("lorem", "Lorem ipsum", true),
+            array("Lorem", "lorem ipsum", true),
+            array("LOREM", "LoReM ipsum", true),
         );
     }