1 files changed, 88 insertions, 0 deletions
diff --git a/tests/Misc/UtfStringTest.php b/tests/Misc/UtfStringTest.php
new file mode 100644
index 0000000..0d1ff78
--- /dev/null
+++ b/tests/Misc/UtfStringTest.php
@@ -0,0 +1,88 @@
+<?php
+
+namespace SqlParser\Tests\Misc;
+
+use SqlParser\UtfString;
+
+use SqlParser\Tests\TestCase;
+
+class UtfStringTest extends TestCase
+{
+
+    /**
+     * Sample phrase in French.
+     *
+     * @var UtfString
+     */
+    const TEST_PHRASE = 'Les naïfs ægithales hâtifs pondant à Noël où il ' .
+        'gèle sont sûrs d\'être déçus en voyant leurs drôles d\'œufs abîmés.';
+
+    /**
+     * The length of the sample phrase.
+     *
+     * @var int
+     */
+    const TEST_PHRASE_LEN = 113;
+
+    public function testArrayAccess()
+    {
+        $str = new UtfString(static::TEST_PHRASE);
+
+        // offsetExists
+        $this->assertTrue(isset($str[static::TEST_PHRASE_LEN - 1]));
+        $this->assertFalse(isset($str[-1]));
+        $this->assertFalse(isset($str[static::TEST_PHRASE_LEN]));
+
+        // offsetGet
+        $this->assertEquals('.', $str[static::TEST_PHRASE_LEN - 1]);
+        $this->assertEquals(null, $str[-1]);
+        $this->assertEquals(null, $str[static::TEST_PHRASE_LEN]);
+    }
+
+    /**
+     * @expectedException \Exception
+     * @expectedExceptionMessage Not implemented.
+     */
+    public function testSet()
+    {
+        $str = new UtfString('');
+        $str[0] = 'a';
+    }
+
+    /**
+     * @expectedException \Exception
+     * @expectedExceptionMessage Not implemented.
+     */
+    public function testUnset()
+    {
+        $str = new UtfString('');
+        unset($str[0]);
+    }
+
+    public function testGetCharLength()
+    {
+        $this->assertEquals(1, UtfString::getCharLength(chr(0x00))); // 00000000
+        $this->assertEquals(1, UtfString::getCharLength(chr(0x7F))); // 01111111
+
+        $this->assertEquals(2, UtfString::getCharLength(chr(0xC0))); // 11000000
+        $this->assertEquals(2, UtfString::getCharLength(chr(0xDF))); // 11011111
+
+        $this->assertEquals(3, UtfString::getCharLength(chr(0xE0))); // 11100000
+        $this->assertEquals(3, UtfString::getCharLength(chr(0xEF))); // 11101111
+
+        $this->assertEquals(4, UtfString::getCharLength(chr(0xF0))); // 11110000
+        $this->assertEquals(4, UtfString::getCharLength(chr(0xF7))); // 11110111
+
+        $this->assertEquals(5, UtfString::getCharLength(chr(0xF8))); // 11111000
+        $this->assertEquals(5, UtfString::getCharLength(chr(0xFB))); // 11111011
+
+        $this->assertEquals(6, UtfString::getCharLength(chr(0xFC))); // 11111100
+        $this->assertEquals(6, UtfString::getCharLength(chr(0xFD))); // 11111101
+    }
+
+    public function testToString()
+    {
+        $str = new UtfString(static::TEST_PHRASE);
+        $this->assertEquals(static::TEST_PHRASE, (string) $str);
+    }
+}