1 files changed, 888 insertions, 0 deletions
diff --git a/php/tests/array_test.php b/php/tests/array_test.php
new file mode 100644
index 00000000..d683add5
--- /dev/null
+++ b/php/tests/array_test.php
@@ -0,0 +1,888 @@
+<?php
+
+require_once('test.pb.php');
+require_once('test_util.php');
+
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBType;
+use Foo\TestMessage;
+use Foo\TestMessage_Sub;
+
+class RepeatedFieldTest extends PHPUnit_Framework_TestCase
+{
+
+    #########################################################
+    # Test int32 field.
+    #########################################################
+
+    public function testInt32()
+    {
+        $arr = new RepeatedField(GPBType::INT32);
+
+        // Test append.
+        $arr []= MAX_INT32;
+        $this->assertSame(MAX_INT32, $arr[0]);
+        $arr []= MIN_INT32;
+        $this->assertSame(MIN_INT32, $arr[1]);
+
+        $arr []= 1.1;
+        $this->assertSame(1, $arr[2]);
+        $arr []= MAX_INT32_FLOAT;
+        $this->assertSame(MAX_INT32, $arr[3]);
+        $arr []= MAX_INT32_FLOAT;
+        $this->assertSame(MAX_INT32, $arr[4]);
+
+        $arr []= '2';
+        $this->assertSame(2, $arr[5]);
+        $arr []= '3.1';
+        $this->assertSame(3, $arr[6]);
+        $arr []= MAX_INT32_STRING;
+        $this->assertSame(MAX_INT32, $arr[7]);
+
+        $this->assertEquals(8, count($arr));
+
+        for ($i = 0; $i < count($arr); $i++) {
+            $arr[$i] = 0;
+            $this->assertSame(0, $arr[$i]);
+        }
+
+        // Test set.
+        $arr [0]= MAX_INT32;
+        $this->assertSame(MAX_INT32, $arr[0]);
+        $arr [1]= MIN_INT32;
+        $this->assertSame(MIN_INT32, $arr[1]);
+
+        $arr [2]= 1.1;
+        $this->assertSame(1, $arr[2]);
+        $arr [3]= MAX_INT32_FLOAT;
+        $this->assertSame(MAX_INT32, $arr[3]);
+        $arr [4]= MAX_INT32_FLOAT;
+        $this->assertSame(MAX_INT32, $arr[4]);
+
+        $arr [5]= '2';
+        $this->assertSame(2, $arr[5]);
+        $arr [6]= '3.1';
+        $this->assertSame(3, $arr[6]);
+        $arr [7]= MAX_INT32_STRING;
+        $this->assertSame(MAX_INT32, $arr[7]);
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testInt32AppendStringFail()
+    {
+        $arr = new RepeatedField(GPBType::INT32);
+        $arr []= 'abc';
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testInt32SetStringFail()
+    {
+        $arr = new RepeatedField(GPBType::INT32);
+        $arr []= 0;
+        $arr [0]= 'abc';
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testInt32AppendMessageFail()
+    {
+        $arr = new RepeatedField(GPBType::INT32);
+        $arr []= new TestMessage_Sub();
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testInt32SetMessageFail()
+    {
+        $arr = new RepeatedField(GPBType::INT32);
+        $arr []= 0;
+        $arr [0]= new TestMessage_Sub();
+    }
+
+    #########################################################
+    # Test uint32 field.
+    #########################################################
+
+    public function testUint32()
+    {
+        $arr = new RepeatedField(GPBType::UINT32);
+
+        // Test append.
+        $arr []= MAX_UINT32;
+        $this->assertSame(-1, $arr[0]);
+        $arr []= -1;
+        $this->assertSame(-1, $arr[1]);
+        $arr []= MIN_UINT32;
+        $this->assertSame(MIN_UINT32, $arr[2]);
+
+        $arr []= 1.1;
+        $this->assertSame(1, $arr[3]);
+        $arr []= MAX_UINT32_FLOAT;
+        $this->assertSame(-1, $arr[4]);
+        $arr []= -1.0;
+        $this->assertSame(-1, $arr[5]);
+        $arr []= MIN_UINT32_FLOAT;
+        $this->assertSame(MIN_UINT32, $arr[6]);
+
+        $arr []= '2';
+        $this->assertSame(2, $arr[7]);
+        $arr []= '3.1';
+        $this->assertSame(3, $arr[8]);
+        $arr []= MAX_UINT32_STRING;
+        $this->assertSame(-1, $arr[9]);
+        $arr []= '-1.0';
+        $this->assertSame(-1, $arr[10]);
+        $arr []= MIN_UINT32_STRING;
+        $this->assertSame(MIN_UINT32, $arr[11]);
+
+        $this->assertEquals(12, count($arr));
+
+        for ($i = 0; $i < count($arr); $i++) {
+            $arr[$i] = 0;
+            $this->assertSame(0, $arr[$i]);
+        }
+
+        // Test set.
+        $arr [0]= MAX_UINT32;
+        $this->assertSame(-1, $arr[0]);
+        $arr [1]= -1;
+        $this->assertSame(-1, $arr[1]);
+        $arr [2]= MIN_UINT32;
+        $this->assertSame(MIN_UINT32, $arr[2]);
+
+        $arr [3]= 1.1;
+        $this->assertSame(1, $arr[3]);
+        $arr [4]= MAX_UINT32_FLOAT;
+        $this->assertSame(-1, $arr[4]);
+        $arr [5]= -1.0;
+        $this->assertSame(-1, $arr[5]);
+        $arr [6]= MIN_UINT32_FLOAT;
+        $this->assertSame(MIN_UINT32, $arr[6]);
+
+        $arr [7]= '2';
+        $this->assertSame(2, $arr[7]);
+        $arr [8]= '3.1';
+        $this->assertSame(3, $arr[8]);
+        $arr [9]= MAX_UINT32_STRING;
+        $this->assertSame(-1, $arr[9]);
+        $arr [10]= '-1.0';
+        $this->assertSame(-1, $arr[10]);
+        $arr [11]= MIN_UINT32_STRING;
+        $this->assertSame(MIN_UINT32, $arr[11]);
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testUint32AppendStringFail()
+    {
+        $arr = new RepeatedField(GPBType::UINT32);
+        $arr []= 'abc';
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testUint32SetStringFail()
+    {
+        $arr = new RepeatedField(GPBType::UINT32);
+        $arr []= 0;
+        $arr [0]= 'abc';
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testUint32AppendMessageFail()
+    {
+        $arr = new RepeatedField(GPBType::UINT32);
+        $arr []= new TestMessage_Sub();
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testUint32SetMessageFail()
+    {
+        $arr = new RepeatedField(GPBType::UINT32);
+        $arr []= 0;
+        $arr [0]= new TestMessage_Sub();
+    }
+
+    #########################################################
+    # Test int64 field.
+    #########################################################
+
+    public function testInt64()
+    {
+        $arr = new RepeatedField(GPBType::INT64);
+
+        // Test append.
+        $arr []= MAX_INT64;
+        $this->assertSame(MAX_INT64, $arr[0]);
+        $arr []= MIN_INT64;
+        $this->assertEquals(MIN_INT64, $arr[1]);
+
+        $arr []= 1.1;
+        $this->assertSame(1, $arr[2]);
+
+        $arr []= '2';
+        $this->assertSame(2, $arr[3]);
+        $arr []= '3.1';
+        $this->assertSame(3, $arr[4]);
+        $arr []= MAX_INT64_STRING;
+        $this->assertSame(MAX_INT64, $arr[5]);
+        $arr []= MIN_INT64_STRING;
+        $this->assertEquals(MIN_INT64, $arr[6]);
+
+        $this->assertEquals(7, count($arr));
+
+        for ($i = 0; $i < count($arr); $i++) {
+            $arr[$i] = 0;
+            $this->assertSame(0, $arr[$i]);
+        }
+
+        // Test set.
+        $arr [0]= MAX_INT64;
+        $this->assertSame(MAX_INT64, $arr[0]);
+        $arr [1]= MIN_INT64;
+        $this->assertEquals(MIN_INT64, $arr[1]);
+
+        $arr [2]= 1.1;
+        $this->assertSame(1, $arr[2]);
+
+        $arr [3]= '2';
+        $this->assertSame(2, $arr[3]);
+        $arr [4]= '3.1';
+        $this->assertSame(3, $arr[4]);
+        $arr [5]= MAX_INT64_STRING;
+        $this->assertSame(MAX_INT64, $arr[5]);
+        $arr [6]= MIN_INT64_STRING;
+        $this->assertEquals(MIN_INT64, $arr[6]);
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testInt64AppendStringFail()
+    {
+        $arr = new RepeatedField(GPBType::INT64);
+        $arr []= 'abc';
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testInt64SetStringFail()
+    {
+        $arr = new RepeatedField(GPBType::INT64);
+        $arr []= 0;
+        $arr [0]= 'abc';
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testInt64AppendMessageFail()
+    {
+        $arr = new RepeatedField(GPBType::INT64);
+        $arr []= new TestMessage_Sub();
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testInt64SetMessageFail()
+    {
+        $arr = new RepeatedField(GPBType::INT64);
+        $arr []= 0;
+        $arr [0]= new TestMessage_Sub();
+    }
+
+    #########################################################
+    # Test uint64 field.
+    #########################################################
+
+    public function testUint64()
+    {
+        $arr = new RepeatedField(GPBType::UINT64);
+
+        // Test append.
+        $arr []= MAX_UINT64;
+        $this->assertEquals(MAX_UINT64, $arr[0]);
+
+        $arr []= 1.1;
+        $this->assertSame(1, $arr[1]);
+
+        $arr []= '2';
+        $this->assertSame(2, $arr[2]);
+        $arr []= '3.1';
+        $this->assertSame(3, $arr[3]);
+        $arr []= MAX_UINT64_STRING;
+        $this->assertEquals(MAX_UINT64, $arr[4]);
+
+        $this->assertEquals(5, count($arr));
+
+        for ($i = 0; $i < count($arr); $i++) {
+            $arr[$i] = 0;
+            $this->assertSame(0, $arr[$i]);
+        }
+
+        // Test set.
+        $arr [0]= MAX_UINT64;
+        $this->assertEquals(MAX_UINT64, $arr[0]);
+
+        $arr [1]= 1.1;
+        $this->assertSame(1, $arr[1]);
+
+        $arr [2]= '2';
+        $this->assertSame(2, $arr[2]);
+        $arr [3]= '3.1';
+        $this->assertSame(3, $arr[3]);
+        $arr [4]= MAX_UINT64_STRING;
+        $this->assertEquals(MAX_UINT64, $arr[4]);
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testUint64AppendStringFail()
+    {
+        $arr = new RepeatedField(GPBType::UINT64);
+        $arr []= 'abc';
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testUint64SetStringFail()
+    {
+        $arr = new RepeatedField(GPBType::UINT64);
+        $arr []= 0;
+        $arr [0]= 'abc';
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testUint64AppendMessageFail()
+    {
+        $arr = new RepeatedField(GPBType::UINT64);
+        $arr []= new TestMessage_Sub();
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testUint64SetMessageFail()
+    {
+        $arr = new RepeatedField(GPBType::UINT64);
+        $arr []= 0;
+        $arr [0]= new TestMessage_Sub();
+    }
+
+    #########################################################
+    # Test float field.
+    #########################################################
+
+    public function testFloat()
+    {
+        $arr = new RepeatedField(GPBType::FLOAT);
+
+        // Test append.
+        $arr []= 1;
+        $this->assertEquals(1.0, $arr[0], '', MAX_FLOAT_DIFF);
+
+        $arr []= 1.1;
+        $this->assertEquals(1.1, $arr[1], '', MAX_FLOAT_DIFF);
+
+        $arr []= '2';
+        $this->assertEquals(2.0, $arr[2], '', MAX_FLOAT_DIFF);
+        $arr []= '3.1';
+        $this->assertEquals(3.1, $arr[3], '', MAX_FLOAT_DIFF);
+
+        $this->assertEquals(4, count($arr));
+
+        for ($i = 0; $i < count($arr); $i++) {
+            $arr[$i] = 0;
+            $this->assertSame(0.0, $arr[$i]);
+        }
+
+        // Test set.
+        $arr [0]= 1;
+        $this->assertEquals(1.0, $arr[0], '', MAX_FLOAT_DIFF);
+
+        $arr [1]= 1.1;
+        $this->assertEquals(1.1, $arr[1], '', MAX_FLOAT_DIFF);
+
+        $arr [2]= '2';
+        $this->assertEquals(2.0, $arr[2], '', MAX_FLOAT_DIFF);
+        $arr [3]= '3.1';
+        $this->assertEquals(3.1, $arr[3], '', MAX_FLOAT_DIFF);
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testFloatAppendStringFail()
+    {
+        $arr = new RepeatedField(GPBType::FLOAT);
+        $arr []= 'abc';
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testFloatSetStringFail()
+    {
+        $arr = new RepeatedField(GPBType::FLOAT);
+        $arr []= 0.0;
+        $arr [0]= 'abc';
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testFloatAppendMessageFail()
+    {
+        $arr = new RepeatedField(GPBType::FLOAT);
+        $arr []= new TestMessage_Sub();
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testFloatSetMessageFail()
+    {
+        $arr = new RepeatedField(GPBType::FLOAT);
+        $arr []= 0.0;
+        $arr [0]= new TestMessage_Sub();
+    }
+
+    #########################################################
+    # Test double field.
+    #########################################################
+
+    public function testDouble()
+    {
+        $arr = new RepeatedField(GPBType::DOUBLE);
+
+        // Test append.
+        $arr []= 1;
+        $this->assertEquals(1.0, $arr[0], '', MAX_FLOAT_DIFF);
+
+        $arr []= 1.1;
+        $this->assertEquals(1.1, $arr[1], '', MAX_FLOAT_DIFF);
+
+        $arr []= '2';
+        $this->assertEquals(2.0, $arr[2], '', MAX_FLOAT_DIFF);
+        $arr []= '3.1';
+        $this->assertEquals(3.1, $arr[3], '', MAX_FLOAT_DIFF);
+
+        $this->assertEquals(4, count($arr));
+
+        for ($i = 0; $i < count($arr); $i++) {
+            $arr[$i] = 0;
+            $this->assertSame(0.0, $arr[$i]);
+        }
+
+        // Test set.
+        $arr [0]= 1;
+        $this->assertEquals(1.0, $arr[0], '', MAX_FLOAT_DIFF);
+
+        $arr [1]= 1.1;
+        $this->assertEquals(1.1, $arr[1], '', MAX_FLOAT_DIFF);
+
+        $arr [2]= '2';
+        $this->assertEquals(2.0, $arr[2], '', MAX_FLOAT_DIFF);
+        $arr [3]= '3.1';
+        $this->assertEquals(3.1, $arr[3], '', MAX_FLOAT_DIFF);
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testDoubleAppendStringFail()
+    {
+        $arr = new RepeatedField(GPBType::DOUBLE);
+        $arr []= 'abc';
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testDoubleSetStringFail()
+    {
+        $arr = new RepeatedField(GPBType::DOUBLE);
+        $arr []= 0.0;
+        $arr [0]= 'abc';
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testDoubleAppendMessageFail()
+    {
+        $arr = new RepeatedField(GPBType::DOUBLE);
+        $arr []= new TestMessage_Sub();
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testDoubleSetMessageFail()
+    {
+        $arr = new RepeatedField(GPBType::DOUBLE);
+        $arr []= 0.0;
+        $arr [0]= new TestMessage_Sub();
+    }
+
+    #########################################################
+    # Test bool field.
+    #########################################################
+
+    public function testBool()
+    {
+        $arr = new RepeatedField(GPBType::BOOL);
+
+        // Test append.
+        $arr []= true;
+        $this->assertSame(true, $arr[0]);
+
+        $arr []= -1;
+        $this->assertSame(true, $arr[1]);
+
+        $arr []= 1.1;
+        $this->assertSame(true, $arr[2]);
+
+        $arr []= '';
+        $this->assertSame(false, $arr[3]);
+
+        $this->assertEquals(4, count($arr));
+
+        for ($i = 0; $i < count($arr); $i++) {
+            $arr[$i] = 0;
+            $this->assertSame(false, $arr[$i]);
+        }
+
+        // Test set.
+        $arr [0]= true;
+        $this->assertSame(true, $arr[0]);
+
+        $arr [1]= -1;
+        $this->assertSame(true, $arr[1]);
+
+        $arr [2]= 1.1;
+        $this->assertSame(true, $arr[2]);
+
+        $arr [3]= '';
+        $this->assertSame(false, $arr[3]);
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testBoolAppendMessageFail()
+    {
+        $arr = new RepeatedField(GPBType::BOOL);
+        $arr []= new TestMessage_Sub();
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testBoolSetMessageFail()
+    {
+        $arr = new RepeatedField(GPBType::BOOL);
+        $arr []= true;
+        $arr [0]= new TestMessage_Sub();
+    }
+
+    #########################################################
+    # Test string field.
+    #########################################################
+
+    public function testString()
+    {
+        $arr = new RepeatedField(GPBType::STRING);
+
+        // Test append.
+        $arr []= 'abc';
+        $this->assertSame('abc', $arr[0]);
+
+        $arr []= 1;
+        $this->assertSame('1', $arr[1]);
+
+        $arr []= 1.1;
+        $this->assertSame('1.1', $arr[2]);
+
+        $arr []= true;
+        $this->assertSame('1', $arr[3]);
+
+        $this->assertEquals(4, count($arr));
+
+        for ($i = 0; $i < count($arr); $i++) {
+            $arr[$i] = '';
+            $this->assertSame('', $arr[$i]);
+        }
+
+        // Test set.
+        $arr [0]= 'abc';
+        $this->assertSame('abc', $arr[0]);
+
+        $arr [1]= 1;
+        $this->assertSame('1', $arr[1]);
+
+        $arr [2]= 1.1;
+        $this->assertSame('1.1', $arr[2]);
+
+        $arr [3]= true;
+        $this->assertSame('1', $arr[3]);
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testStringAppendMessageFail()
+    {
+        $arr = new RepeatedField(GPBType::STRING);
+        $arr []= new TestMessage_Sub();
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testStringSetMessageFail()
+    {
+        $arr = new RepeatedField(GPBType::STRING);
+        $arr []= 'abc';
+        $arr [0]= new TestMessage_Sub();
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testStringAppendInvalidUTF8Fail()
+    {
+        $arr = new RepeatedField(GPBType::STRING);
+        $hex = hex2bin("ff");
+        $arr []= $hex;
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testStringSetInvalidUTF8Fail()
+    {
+        $arr = new RepeatedField(GPBType::STRING);
+        $arr []= 'abc';
+        $hex = hex2bin("ff");
+        $arr [0]= $hex;
+    }
+
+    #########################################################
+    # Test message field.
+    #########################################################
+
+    public function testMessage()
+    {
+        $arr = new RepeatedField(GPBType::MESSAGE, TestMessage_Sub::class);
+
+        // Test append.
+        $sub_m = new TestMessage_Sub();
+        $sub_m->setA(1);
+        $arr []= $sub_m;
+        $this->assertSame(1, $arr[0]->getA());
+
+        $null = null;
+        $arr []= $null;
+        $this->assertNull($arr[1]);
+
+        $this->assertEquals(2, count($arr));
+
+        for ($i = 0; $i < count($arr); $i++) {
+            $arr[$i] = $null;
+            $this->assertNull($arr[$i]);
+        }
+
+        // Test set.
+        $arr [0]= $sub_m;
+        $this->assertSame(1, $arr[0]->getA());
+
+        $arr [1]= $null;
+        $this->assertNull($arr[1]);
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testMessageAppendIntFail()
+    {
+        $arr = new RepeatedField(GPBType::MESSAGE, TestMessage_Sub::class);
+        $arr []= 1;
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testMessageSetIntFail()
+    {
+        $arr = new RepeatedField(GPBType::MESSAGE, TestMessage_Sub::class);
+        $arr []= new TestMessage_Sub;
+        $arr [0]= 'abc';
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testMessageAppendStringFail()
+    {
+        $arr = new RepeatedField(GPBType::MESSAGE, TestMessage_Sub::class);
+        $arr []= 'abc';
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testMessageSetStringFail()
+    {
+        $arr = new RepeatedField(GPBType::MESSAGE, TestMessage_Sub::class);
+        $arr []= new TestMessage_Sub;
+        $arr [0]= 'abc';
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testMessageAppendOtherMessageFail()
+    {
+        $arr = new RepeatedField(GPBType::MESSAGE, TestMessage_Sub::class);
+        $arr []= new TestMessage;
+    }
+
+    #########################################################
+    # Test offset type
+    #########################################################
+
+    public function testOffset()
+    {
+        $arr = new RepeatedField(GPBType::INT32);
+        $arr []= 0;
+
+        $arr [0]= 1;
+        $this->assertSame(1, $arr[0]);
+        $this->assertSame(1, count($arr));
+
+        $arr ['0']= 2;
+        $this->assertSame(2, $arr['0']);
+        $this->assertSame(2, $arr[0]);
+        $this->assertSame(1, count($arr));
+
+        $arr [0.0]= 3;
+        $this->assertSame(3, $arr[0.0]);
+        $this->assertSame(1, count($arr));
+    }
+
+      public function testInsertRemoval()
+      {
+          $arr = new RepeatedField(GPBType::INT32);
+
+          $arr []= 0;
+          $arr []= 1;
+          $arr []= 2;
+          $this->assertSame(3, count($arr));
+
+          unset($arr[2]);
+          $this->assertSame(2, count($arr));
+          $this->assertSame(0, $arr[0]);
+          $this->assertSame(1, $arr[1]);
+
+          $arr [] = 3;
+          $this->assertSame(3, count($arr));
+          $this->assertSame(0, $arr[0]);
+          $this->assertSame(1, $arr[1]);
+          $this->assertSame(3, $arr[2]);
+      }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testRemoveMiddleFail()
+    {
+        $arr = new RepeatedField(GPBType::INT32);
+
+        $arr []= 0;
+        $arr []= 1;
+        $arr []= 2;
+        $this->assertSame(3, count($arr));
+
+        unset($arr[1]);
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testRemoveEmptyFail()
+    {
+        $arr = new RepeatedField(GPBType::INT32);
+
+        unset($arr[0]);
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testMessageOffsetFail()
+    {
+        $arr = new RepeatedField(GPBType::INT32);
+        $arr []= 0;
+        $arr [new TestMessage_Sub()]= 0;
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testStringOffsetFail()
+    {
+        $arr = new RepeatedField(GPBType::INT32);
+        $arr []= 0;
+        $arr ['abc']= 0;
+    }
+
+    /**
+     * @expectedException PHPUnit_Framework_Error
+     */
+    public function testSetNonExistedOffsetFail()
+    {
+        $arr = new RepeatedField(GPBType::INT32);
+        $arr [0]= 0;
+    }
+
+    #########################################################
+    # Test memory leak
+    #########################################################
+
+    public function testCycleLeak()
+    {
+        $arr = new RepeatedField(GPBType::MESSAGE, TestMessage::class);
+        $arr []= new TestMessage;
+        $arr[0]->SetRepeatedRecursive($arr);
+
+        // Clean up memory before test.
+        gc_collect_cycles();
+        $start = memory_get_usage();
+        unset($arr);
+
+        // Explicitly trigger garbage collection.
+        gc_collect_cycles();
+
+        $end = memory_get_usage();
+        $this->assertLessThan($start, $end);
+    }
+}