Introduce the Array Buffer C API (#2161)

Add C API to work with Array Buffers.
The following methods are added:
- jerry_value_is_arraybuffer
- jerry_create_arraybuffer
- jerry_arraybuffer_write
- jerry_arraybuffer_read
- jerry_get_arraybuffer_byte_length

JerryScript-DCO-1.0-Signed-off-by: Peter Gal pgal.u-szeged@partner.samsung.com

docs/02.API-REFERENCE.md

@@ -993,6 +993,44 @@ jerry_value_is_array (const jerry_value_t value)
 
 - [jerry_release_value](#jerry_release_value)
 
+## jerry_value_is_arraybuffer
+
+**Summary**
+
+Returns whether the given `jerry_value_t` is an ArrayBuffer object.
+
+**Prototype**
+
+```c
+bool
+jerry_value_is_arraybuffer (const jerry_value_t value)
+```
+
+- `value` - api value
+- return value
+  - true, if the given `jerry_value_t` is an ArrayBuffer object.
+  - false, otherwise
+
+**Example**
+
+```c
+{
+  jerry_value_t value;
+  ... // create or acquire value
+
+  if (jerry_value_is_arraybuffer (value))
+  {
+    ...
+  }
+
+  jerry_release_value (value);
+}
+```
+
+**See also**
+
+- [jerry_create_arraybuffer](#jerry_create_arraybuffer)
+
 
 ## jerry_value_is_boolean
 
@@ -2391,6 +2429,42 @@ jerry_create_array (uint32_t size);
 - [jerry_get_property_by_index](#jerry_get_property_by_index)
 
 
+## jerry_create_arraybuffer
+
+**Summary**
+
+Create a jerry_value_t representing an ArrayBuffer object.
+
+**Prototype**
+
+```c
+jerry_value_t
+jerry_create_arraybuffer (jerry_length_t size);
+```
+
+ - `size` - size of the ArrayBuffer to create **in bytes**
+ - return value - the new ArrayBuffer as a `jerry_value_t`
+
+**Example**
+
+```c
+{
+  jerry_value_t buffer_value = jerry_create_arraybuffer (15);
+
+  ... // use the ArrayBuffer
+
+  jerry_release_value (buffer_value);
+}
+```
+
+**See also**
+
+- [jerry_arraybuffer_read](#jerry_arraybuffer_read)
+- [jerry_arraybuffer_write](#jerry_arraybuffer_write)
+- [jerry_value_is_arraybuffer](#jerry_value_is_arraybuffer)
+- [jerry_release_value](#jerry_release_value)
+
+
 ## jerry_create_boolean
 
 **Summary**
@@ -4679,3 +4753,171 @@ main (void)
 - [jerry_parse](#jerry_parse)
 - [jerry_run](#jerry_run)
 - [jerry_vm_exec_stop_callback_t](#jerry_vm_exec_stop_callback_t)
+
+
+# ArrayBuffer and TypedArray functions
+
+## jerry_get_arraybuffer_byte_length
+
+**Summary**
+
+Get the byte length property of the ArrayBuffer. This is the
+same value which was passed to the ArrayBuffer constructor call.
+
+**Prototype**
+
+```c
+jerry_length_t
+jerry_get_arraybuffer_byte_length (const jerry_value_t value);
+```
+
+- `value` - ArrayBuffer object
+- return value
+  - size of the ArrayBuffer in bytes
+  - 0 if the `value` parameter is not an ArrayBuffer
+
+**Example**
+
+```c
+{
+  jerry_value_t buffer = jerry_create_arraybuffer (15);
+  jerry_length_t length = jerry_get_arraybuffer_byte_length (buffer);
+  // length should be 15
+
+  jerry_release_value (buffer);
+}
+```
+
+**See also**
+- [jerry_create_arraybuffer](#jerry_create_arraybuffer)
+
+
+## jerry_arraybuffer_read
+
+**Summary**
+
+Copy the portion of the ArrayBuffer into a user provided buffer.
+The start offset of the read operation can be specified.
+
+The number bytes to be read can be specified via the `buf_size`
+parameter. It is not possible to read more than the length of
+the ArrayBuffer.
+
+Function returns the number of bytes read from the ArrayBuffer
+(and written to the buffer parameter). This value is
+calculated in the following way: `min(array buffer length - offset, buf_size)`.
+
+**Prototype**
+
+```c
+jerry_length_t
+jerry_arraybuffer_read (const jerry_value_t value,
+                        jerry_length_t offset,
+                        uint8_t *buf_p,
+                        jerry_length_t buf_size);
+```
+
+- `value` - ArrayBuffer to read from
+- `offset` - start offset of the read operation
+- `buf_p` - buffer to read the data to
+- `buf_size` - maximum number of bytes to read into the buffer
+- return value
+  - number of bytes written into the buffer (read from the ArrayBuffer)
+  - 0 if the `value` is not an ArrayBuffer object
+  - 0 if the `buf_size` is zero or there is nothing to read
+
+**Example**
+
+```c
+{
+  uint8_t data[20];
+  jerry_value_t buffer;
+  // ... create the ArrayBuffer or acuiqre it from somewhere.
+
+  jerry_value_t bytes_read;
+
+  // read 10 bytes from the start of the ArrayBuffer.
+  bytes_read = jerry_arraybuffer_read (buffer, 0, data, 10);
+  // read the next 10 bytes
+  bytes_read += jerry_arraybuffer_read (buffer, bytes_read, data + bytes_read, 10);
+
+  // process the data variable
+
+  jerry_release_value (buffer);
+}
+```
+
+**See also**
+
+- [jerry_create_arraybuffer](#jerry_create_arraybuffer)
+- [jerry_arraybuffer_write](#jerry_arraybuffer_write)
+- [jerry_get_arraybuffer_byte_length](#jerry_get_arraybuffer_byte_length)
+
+
+## jerry_arraybuffer_write
+
+**Summary**
+
+Copy the contents of a buffer into the ArrayBuffer.
+The start offset of the write operation can be specified.
+
+The number bytes to be written can be specified via the `buf_size`
+parameter. It is not possible to write more than the length of
+the ArrayBuffer.
+
+Function returns the number of bytes written into the ArrayBuffer
+(and read from the buffer parameter). This value is
+calculated in the following way: `min(array buffer length - offset, buf_size)`.
+
+**Prototype**
+
+```c
+jerry_length_t
+jerry_arraybuffer_write (const jerry_value_t value,
+                         jerry_length_t offset,
+                         const uint8_t *buf_p,
+                         jerry_length_t buf_size);
+```
+
+- `value` - ArrayBuffer to write to
+- `offset` - start offset of the write operation
+- `buf_p` - buffer to read the data from
+- `buf_size` - maximum number of bytes to write into the ArrayBuffer
+- return value
+  - number of bytes written into the ArrayBuffer (read from the buffer parameter)
+  - 0 if the `value` is not an ArrayBuffer object
+  - 0 if the `buf_size` is zero or there is nothing to write
+
+**Example**
+
+```c
+{
+  uint8_t data[20];
+
+  // fill the data with values
+  for (int i = 0; i < 20; i++)
+  {
+    data[i] = (uint8_t) (i * 2);
+  }
+
+  jerry_value_t buffer;
+  // ... create the ArrayBuffer or acquire it from somewhere.
+
+  jerry_value_t bytes_written;
+
+  // write 10 bytes from to the start of the ArrayBuffer.
+  bytes_written = jerry_arraybuffer_write (buffer, 0, data, 10);
+  // read the next 10 bytes
+  bytes_written += jerry_arraybuffer_write (buffer, bytes_written, data + bytes_written, 10);
+
+  // use the ArrayBuffer
+
+  jerry_release_value (buffer);
+}
+```
+
+**See also**
+
+- [jerry_create_arraybuffer](#jerry_create_arraybuffer)
+- [jerry_arraybuffer_write](#jerry_arraybuffer_write)
+- [jerry_get_arraybuffer_byte_length](#jerry_get_arraybuffer_byte_length)

jerry-core/api/jerry.c

@@ -18,6 +18,7 @@
 #include "debugger.h"
 #include "ecma-alloc.h"
 #include "ecma-array-object.h"
+#include "ecma-arraybuffer-object.h"
 #include "ecma-builtin-helpers.h"
 #include "ecma-builtins.h"
 #include "ecma-exceptions.h"
@@ -2625,6 +2626,178 @@ jerry_set_vm_exec_stop_callback (jerry_vm_exec_stop_callback_t stop_cb, /**< per
 #endif /* JERRY_VM_EXEC_STOP */
 } /* jerry_set_vm_exec_stop_callback */
 
+
+/**
+ * Check if the given value is an ArrayBuffer object.
+ *
+ * @return true - if it is an ArrayBuffer object
+ *         false - otherwise
+ */
+bool
+jerry_value_is_arraybuffer (const jerry_value_t value) /**< value to check if it is an ArrayBuffer */
+{
+  jerry_assert_api_available ();
+
+#ifndef CONFIG_DISABLE_ES2015_TYPEDARRAY_BUILTIN
+  jerry_value_t buffer = jerry_get_arg_value (value);
+  return ecma_is_arraybuffer (buffer);
+#else /* CONFIG_DISABLE_ES2015_TYPEDARRAY_BUILTIN */
+  JERRY_UNUSED (value);
+  return false;
+#endif /* !CONFIG_DISABLE_ES2015_TYPEDARRAY_BUILTIN */
+} /* jerry_value_is_arraybuffer */
+
+/**
+ * Creates an ArrayBuffer object with the given length (size).
+ *
+ * Notes:
+ *      * the length is specified in bytes.
+ *      * returned value must be freed with jerry_release_value, when it is no longer needed.
+ *      * if the typed arrays are disabled this will return a TypeError.
+ *
+ * @return value of the constructed ArrayBuffer object
+ */
+jerry_value_t
+jerry_create_arraybuffer (const jerry_length_t size) /**< size of the ArrayBuffer to create */
+{
+  jerry_assert_api_available ();
+
+#ifndef CONFIG_DISABLE_ES2015_TYPEDARRAY_BUILTIN
+  return jerry_return (ecma_make_object_value (ecma_arraybuffer_new_object (size)));
+#else /* CONFIG_DISABLE_ES2015_TYPEDARRAY_BUILTIN */
+  JERRY_UNUSED (size);
+  return jerry_throw (ecma_raise_type_error (ECMA_ERR_MSG ("ArrayBuffer not supported.")));
+#endif /* !CONFIG_DISABLE_ES2015_TYPEDARRAY_BUILTIN */
+} /* jerry_create_arraybuffer */
+
+/**
+ * Copy bytes into the ArrayBuffer from a buffer.
+ *
+ * Note:
+ *     * if the object passed is not an ArrayBuffer will return 0.
+ *
+ * @return number of bytes copied into the ArrayBuffer.
+ */
+jerry_length_t
+jerry_arraybuffer_write (const jerry_value_t value, /**< target ArrayBuffer */
+                         jerry_length_t offset, /**< start offset of the ArrayBuffer */
+                         const uint8_t *buf_p, /**< buffer to copy from */
+                         jerry_length_t buf_size) /**< number of bytes to copy from the buffer */
+{
+  jerry_assert_api_available ();
+
+#ifndef CONFIG_DISABLE_ES2015_TYPEDARRAY_BUILTIN
+  jerry_value_t buffer = jerry_get_arg_value (value);
+
+  if (!ecma_is_arraybuffer (buffer))
+  {
+    return 0;
+  }
+
+  ecma_object_t *buffer_p = ecma_get_object_from_value (buffer);
+  jerry_length_t length = ecma_arraybuffer_get_length (buffer_p);
+
+  if (offset >= length)
+  {
+    return 0;
+  }
+
+  jerry_length_t copy_count = JERRY_MIN (length - offset, buf_size);
+
+  if (copy_count > 0)
+  {
+    lit_utf8_byte_t *mem_buffer_p = ecma_arraybuffer_get_buffer (buffer_p);
+
+    memcpy ((void *) (mem_buffer_p + offset), (void *) buf_p, copy_count);
+  }
+
+  return copy_count;
+#else /* CONFIG_DISABLE_ES2015_TYPEDARRAY_BUILTIN */
+  JERRY_UNUSED (value);
+  JERRY_UNUSED (offset);
+  JERRY_UNUSED (buf_p);
+  JERRY_UNUSED (buf_size);
+  return 0;
+#endif /* !CONFIG_DISABLE_ES2015_TYPEDARRAY_BUILTIN */
+} /* jerry_arraybuffer_write */
+
+/**
+ * Copy bytes from a buffer into an ArrayBuffer.
+ *
+ * Note:
+ *     * if the object passed is not an ArrayBuffer will return 0.
+ *
+ * @return number of bytes read from the ArrayBuffer.
+ */
+jerry_length_t
+jerry_arraybuffer_read (const jerry_value_t value, /**< ArrayBuffer to read from */
+                        jerry_length_t offset, /**< start offset of the ArrayBuffer */
+                        uint8_t *buf_p, /**< destination buffer to copy to */
+                        jerry_length_t buf_size) /**< number of bytes to copy into the buffer */
+{
+  jerry_assert_api_available ();
+
+#ifndef CONFIG_DISABLE_ES2015_TYPEDARRAY_BUILTIN
+  jerry_value_t buffer = jerry_get_arg_value (value);
+
+  if (!ecma_is_arraybuffer (buffer))
+  {
+    return 0;
+  }
+
+  ecma_object_t *buffer_p = ecma_get_object_from_value (buffer);
+  jerry_length_t length = ecma_arraybuffer_get_length (buffer_p);
+
+  if (offset >= length)
+  {
+    return 0;
+  }
+
+  jerry_length_t copy_count = JERRY_MIN (length - offset, buf_size);
+
+  if (copy_count > 0)
+  {
+    lit_utf8_byte_t *mem_buffer_p = ecma_arraybuffer_get_buffer (buffer_p);
+
+    memcpy ((void *) buf_p, (void *) (mem_buffer_p + offset), copy_count);
+  }
+
+  return copy_count;
+#else /* CONFIG_DISABLE_ES2015_TYPEDARRAY_BUILTIN */
+  JERRY_UNUSED (value);
+  JERRY_UNUSED (offset);
+  JERRY_UNUSED (buf_p);
+  JERRY_UNUSED (buf_size);
+  return 0;
+#endif /* !CONFIG_DISABLE_ES2015_TYPEDARRAY_BUILTIN */
+} /* jerry_arraybuffer_read */
+
+/**
+ * Get the length (size) of the ArrayBuffer in bytes.
+ *
+ * Note:
+ *     This is the 'byteLength' property of an ArrayBuffer.
+ *
+ * @return the length of the ArrayBuffer in bytes.
+ */
+jerry_length_t
+jerry_get_arraybuffer_byte_length (const jerry_value_t value) /**< ArrayBuffer */
+{
+  jerry_assert_api_available ();
+
+#ifndef CONFIG_DISABLE_ES2015_TYPEDARRAY_BUILTIN
+  jerry_value_t buffer = jerry_get_arg_value (value);
+  if (ecma_is_arraybuffer (buffer))
+  {
+    ecma_object_t *buffer_p = ecma_get_object_from_value (buffer);
+    return ecma_arraybuffer_get_length (buffer_p);
+  }
+#else /* CONFIG_DISABLE_ES2015_TYPEDARRAY_BUILTIN */
+  JERRY_UNUSED (value);
+#endif /* !CONFIG_DISABLE_ES2015_TYPEDARRAY_BUILTIN */
+  return 0;
+} /* jerry_get_arraybuffer_byte_length */
+
 /**
  * @}
  */

jerry-core/include/jerryscript-core.h

@@ -441,6 +441,21 @@ jerry_instance_t *jerry_create_instance (uint32_t heap_size, jerry_instance_allo
  */
 void jerry_set_vm_exec_stop_callback (jerry_vm_exec_stop_callback_t stop_cb, void *user_p, uint32_t frequency);
 
+/**
+ * Array buffer components.
+ */
+bool jerry_value_is_arraybuffer (const jerry_value_t value);
+jerry_value_t jerry_create_arraybuffer (const jerry_length_t size);
+jerry_length_t jerry_arraybuffer_write (const jerry_value_t value,
+                                        jerry_length_t offset,
+                                        const uint8_t *buf_p,
+                                        jerry_length_t buf_size);
+jerry_length_t jerry_arraybuffer_read (const jerry_value_t value,
+                                       jerry_length_t offset,
+                                       uint8_t *buf_p,
+                                       jerry_length_t buf_size);
+jerry_length_t jerry_get_arraybuffer_byte_length (const jerry_value_t value);
+
 /**
  * @}
  */

tests/unit-core/test-arraybuffer.c

@@ -0,0 +1,263 @@
+/* Copyright JS Foundation and other contributors, http://js.foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "jerryscript.h"
+#include "jerryscript-port.h"
+#include "jerryscript-port-default.h"
+#include "test-common.h"
+
+/**
+ * Register a JavaScript value in the global object.
+ */
+static void
+register_js_value (const char *name_p, /**< name of the function */
+                   jerry_value_t value) /**< JS value */
+{
+  jerry_value_t global_obj_val = jerry_get_global_object ();
+
+  jerry_value_t name_val = jerry_create_string ((const jerry_char_t *) name_p);
+  jerry_value_t result_val = jerry_set_property (global_obj_val, name_val, value);
+  TEST_ASSERT (jerry_value_is_boolean (result_val));
+
+  jerry_release_value (name_val);
+  jerry_release_value (global_obj_val);
+
+  jerry_release_value (result_val);
+} /* register_js_value */
+
+static jerry_value_t
+assert_handler (const jerry_value_t func_obj_val, /**< function object */
+                const jerry_value_t this_val, /**< this arg */
+                const jerry_value_t args_p[], /**< function arguments */
+                const jerry_length_t args_cnt) /**< number of function arguments */
+{
+  JERRY_UNUSED (func_obj_val);
+  JERRY_UNUSED (this_val);
+
+  if (args_cnt > 0
+      && jerry_value_is_boolean (args_p[0])
+      && jerry_get_boolean_value (args_p[0]))
+  {
+    return jerry_create_boolean (true);
+  }
+
+  if (args_cnt > 1
+      && jerry_value_is_string (args_p[1]))
+  {
+    jerry_length_t utf8_sz = jerry_get_string_size (args_p[1]);
+    char string_from_utf8[utf8_sz];
+    string_from_utf8[utf8_sz] = 0;
+
+    jerry_string_to_char_buffer (args_p[1], (jerry_char_t *) string_from_utf8, utf8_sz);
+
+    printf ("JS assert: %s\n", string_from_utf8);
+  }
+
+  TEST_ASSERT (false);
+} /* assert_handler */
+
+/**
+ * Checks whether global object has arraybuffer.
+ */
+static bool
+arraybuffer_is_available (void)
+{
+  jerry_value_t global_obj_val = jerry_get_global_object ();
+  jerry_value_t prop_name = jerry_create_string ((const jerry_char_t *) "ArrayBuffer");
+
+  jerry_value_t prop_value = jerry_has_property (global_obj_val, prop_name);
+  bool has_prop = jerry_get_boolean_value (prop_value);
+
+  jerry_release_value (global_obj_val);
+  jerry_release_value (prop_name);
+  jerry_release_value (prop_value);
+
+  return has_prop;
+} /* arraybuffer_is_available */
+
+/**
+ * Test ArrayBuffer 'read' api call with various offset values.
+ */
+static void
+test_read_with_offset (uint8_t offset) /**< offset for buffer read. */
+{
+  const char *eval_arraybuffer_src_p = ("var array = new Uint8Array (15);"
+                                        "for (var i = 0; i < array.length; i++) { array[i] = i * 2; };"
+                                        "array.buffer");
+  jerry_value_t arraybuffer = jerry_eval ((jerry_char_t *) eval_arraybuffer_src_p,
+                                          strlen (eval_arraybuffer_src_p),
+                                          true);
+
+  TEST_ASSERT (!jerry_value_has_error_flag (arraybuffer));
+  TEST_ASSERT (jerry_value_is_arraybuffer (arraybuffer));
+  TEST_ASSERT (jerry_get_arraybuffer_byte_length (arraybuffer) == 15);
+
+  uint8_t buffer[20];
+  memset (buffer, 120, 20);
+
+  /* Try to copy more than the target buffer size. */
+  jerry_length_t copied = jerry_arraybuffer_read (arraybuffer, offset, buffer, 20);
+  TEST_ASSERT (copied == (jerry_length_t)(15 - offset));
+
+  for (uint8_t i = 0; i < copied; i++)
+  {
+    TEST_ASSERT (buffer[i] == (i + offset) * 2);
+  }
+  TEST_ASSERT (buffer[15 - offset] == 120);
+
+  jerry_release_value (arraybuffer);
+} /* test_read_with_offset */
+
+/**
+ * Test ArrayBuffer 'write' api call with various offset values.
+ */
+static void test_write_with_offset (uint8_t offset) /**< offset for buffer write. */
+{
+  {
+    jerry_value_t offset_val = jerry_create_number (offset);
+    register_js_value ("offset", offset_val);
+    jerry_release_value (offset_val);
+
+  }
+
+  const char *eval_arraybuffer_src_p = "var array = new Uint8Array (15); array.buffer";
+  jerry_value_t arraybuffer = jerry_eval ((jerry_char_t *) eval_arraybuffer_src_p,
+                                          strlen (eval_arraybuffer_src_p),
+                                          true);
+
+  TEST_ASSERT (!jerry_value_has_error_flag (arraybuffer));
+  TEST_ASSERT (jerry_value_is_arraybuffer (arraybuffer));
+  TEST_ASSERT (jerry_get_arraybuffer_byte_length (arraybuffer) == 15);
+
+  uint8_t buffer[20];
+
+  for (uint8_t i = 0; i < 20; i++)
+  {
+    buffer[i] = (uint8_t)(i * 3);
+  }
+
+  /* Intentionally copy more than the allowed space. */
+  jerry_length_t copied = jerry_arraybuffer_write (arraybuffer, offset, buffer, 20);
+  TEST_ASSERT (copied == (jerry_length_t)(15 - offset));
+
+  const char *eval_test_arraybuffer_p = (
+      "for (var i = 0; i < offset; i++)"
+      "{"
+      "  assert (array[i] == 0, 'offset check for: ' + i + ' was: ' + array[i] + ' should be: 0');"
+      "};"
+      "for (var i = offset; i < array.length; i++)"
+      "{"
+      "  var expected = (i - offset) * 3;"
+      "  assert (array[i] == expected, 'calc check for: ' + i + ' was: ' + array[i] + ' should be: ' + expected);"
+      "};"
+      "assert (array[15] === undefined, 'ArrayBuffer out of bounds index should return undefined value');");
+  jerry_value_t res = jerry_eval ((jerry_char_t *) eval_test_arraybuffer_p,
+                                  strlen (eval_test_arraybuffer_p),
+                                  true);
+  jerry_release_value (res);
+  jerry_release_value (arraybuffer);
+} /* test_write_with_offset */
+
+int
+main (void)
+{
+  jerry_init (JERRY_INIT_EMPTY);
+
+  if (!arraybuffer_is_available ())
+  {
+    jerry_port_log (JERRY_LOG_LEVEL_ERROR, "ArrayBuffer is disabled!\n");
+    jerry_cleanup ();
+    return 0;
+  }
+
+  jerry_value_t function_val = jerry_create_external_function (assert_handler);
+  register_js_value ("assert", function_val);
+  jerry_release_value (function_val);
+
+  /* Test array buffer queries */
+  {
+    const char *eval_arraybuffer_src_p = "new ArrayBuffer (10)";
+    jerry_value_t eval_arraybuffer = jerry_eval ((jerry_char_t *) eval_arraybuffer_src_p,
+                                                 strlen (eval_arraybuffer_src_p),
+                                                 true);
+    TEST_ASSERT (!jerry_value_has_error_flag (eval_arraybuffer));
+    TEST_ASSERT (jerry_value_is_arraybuffer (eval_arraybuffer));
+    TEST_ASSERT (jerry_get_arraybuffer_byte_length (eval_arraybuffer) == 10);
+    jerry_release_value (eval_arraybuffer);
+  }
+
+  /* Test array buffer creation */
+  {
+    const uint32_t length = 15;
+    jerry_value_t arraybuffer = jerry_create_arraybuffer (length);
+    TEST_ASSERT (!jerry_value_has_error_flag (arraybuffer));
+    TEST_ASSERT (jerry_value_is_arraybuffer (arraybuffer));
+    TEST_ASSERT (jerry_get_arraybuffer_byte_length (arraybuffer) == length);
+    jerry_release_value (arraybuffer);
+  }
+
+  /* Test array buffer read operations */
+  for (uint8_t i = 0; i < 15; i++)
+  {
+    test_read_with_offset (i);
+  }
+
+  /* Test zero length ArrayBuffer read */
+  {
+    const uint32_t length = 0;
+    jerry_value_t arraybuffer = jerry_create_arraybuffer (length);
+    TEST_ASSERT (!jerry_value_has_error_flag (arraybuffer));
+    TEST_ASSERT (jerry_value_is_arraybuffer (arraybuffer));
+    TEST_ASSERT (jerry_get_arraybuffer_byte_length (arraybuffer) == length);
+
+    uint8_t data[20];
+    memset (data, 11, 20);
+
+    jerry_length_t bytes_read = jerry_arraybuffer_read (arraybuffer, 0, data, 20);
+    TEST_ASSERT (bytes_read == 0);
+
+    for (int i = 0; i < 20; i++)
+    {
+      TEST_ASSERT (data[i] == 11);
+    }
+
+    jerry_release_value (arraybuffer);
+  }
+
+  /* Test array buffer write operations */
+  for (uint8_t i = 0; i < 15; i++)
+  {
+    test_write_with_offset (i);
+  }
+
+  /* Test zero length ArrayBuffer write */
+  {
+    const uint32_t length = 0;
+    jerry_value_t arraybuffer = jerry_create_arraybuffer (length);
+    TEST_ASSERT (!jerry_value_has_error_flag (arraybuffer));
+    TEST_ASSERT (jerry_value_is_arraybuffer (arraybuffer));
+    TEST_ASSERT (jerry_get_arraybuffer_byte_length (arraybuffer) == length);
+
+    uint8_t data[20];
+    memset (data, 11, 20);
+
+    jerry_length_t bytes_written = jerry_arraybuffer_write (arraybuffer, 0, data, 20);
+    TEST_ASSERT (bytes_written == 0);
+
+    jerry_release_value (arraybuffer);
+  }
+
+  jerry_cleanup ();
+} /* main */