1 files changed, 181 insertions, 0 deletions
diff --git a/test/js-native-api/test_typedarray/test_typedarray.c b/test/js-native-api/test_typedarray/test_typedarray.c
new file mode 100644
index 0000000000..98480a4ea2
--- /dev/null
+++ b/test/js-native-api/test_typedarray/test_typedarray.c
@@ -0,0 +1,181 @@
+#include <js_native_api.h>
+#include <string.h>
+#include "../common.h"
+
+static napi_value Multiply(napi_env env, napi_callback_info info) {
+  size_t argc = 2;
+  napi_value args[2];
+  NAPI_CALL(env, napi_get_cb_info(env, info, &argc, args, NULL, NULL));
+
+  NAPI_ASSERT(env, argc == 2, "Wrong number of arguments");
+
+  napi_valuetype valuetype0;
+  NAPI_CALL(env, napi_typeof(env, args[0], &valuetype0));
+
+  NAPI_ASSERT(env, valuetype0 == napi_object,
+      "Wrong type of arguments. Expects a typed array as first argument.");
+
+  napi_value input_array = args[0];
+  bool is_typedarray;
+  NAPI_CALL(env, napi_is_typedarray(env, input_array, &is_typedarray));
+
+  NAPI_ASSERT(env, is_typedarray,
+      "Wrong type of arguments. Expects a typed array as first argument.");
+
+  napi_valuetype valuetype1;
+  NAPI_CALL(env, napi_typeof(env, args[1], &valuetype1));
+
+  NAPI_ASSERT(env, valuetype1 == napi_number,
+      "Wrong type of arguments. Expects a number as second argument.");
+
+  double multiplier;
+  NAPI_CALL(env, napi_get_value_double(env, args[1], &multiplier));
+
+  napi_typedarray_type type;
+  napi_value input_buffer;
+  size_t byte_offset;
+  size_t i, length;
+  NAPI_CALL(env, napi_get_typedarray_info(
+      env, input_array, &type, &length, NULL, &input_buffer, &byte_offset));
+
+  void* data;
+  size_t byte_length;
+  NAPI_CALL(env, napi_get_arraybuffer_info(
+      env, input_buffer, &data, &byte_length));
+
+  napi_value output_buffer;
+  void* output_ptr = NULL;
+  NAPI_CALL(env, napi_create_arraybuffer(
+      env, byte_length, &output_ptr, &output_buffer));
+
+  napi_value output_array;
+  NAPI_CALL(env, napi_create_typedarray(
+      env, type, length, output_buffer, byte_offset, &output_array));
+
+  if (type == napi_uint8_array) {
+    uint8_t* input_bytes = (uint8_t*)(data) + byte_offset;
+    uint8_t* output_bytes = (uint8_t*)(output_ptr);
+    for (i = 0; i < length; i++) {
+      output_bytes[i] = (uint8_t)(input_bytes[i] * multiplier);
+    }
+  } else if (type == napi_float64_array) {
+    double* input_doubles = (double*)((uint8_t*)(data) + byte_offset);
+    double* output_doubles = (double*)(output_ptr);
+    for (i = 0; i < length; i++) {
+      output_doubles[i] = input_doubles[i] * multiplier;
+    }
+  } else {
+    napi_throw_error(env, NULL,
+        "Typed array was of a type not expected by test.");
+    return NULL;
+  }
+
+  return output_array;
+}
+
+static napi_value External(napi_env env, napi_callback_info info) {
+  static int8_t externalData[] = {0, 1, 2};
+
+  napi_value output_buffer;
+  NAPI_CALL(env, napi_create_external_arraybuffer(
+      env,
+      externalData,
+      sizeof(externalData),
+      NULL,  // finalize_callback
+      NULL,  // finalize_hint
+      &output_buffer));
+
+  napi_value output_array;
+  NAPI_CALL(env, napi_create_typedarray(env,
+      napi_int8_array,
+      sizeof(externalData) / sizeof(int8_t),
+      output_buffer,
+      0,
+      &output_array));
+
+  return output_array;
+}
+
+static napi_value CreateTypedArray(napi_env env, napi_callback_info info) {
+  size_t argc = 4;
+  napi_value args[4];
+  NAPI_CALL(env, napi_get_cb_info(env, info, &argc, args, NULL, NULL));
+
+  NAPI_ASSERT(env, argc == 2 || argc == 4, "Wrong number of arguments");
+
+  napi_value input_array = args[0];
+  napi_valuetype valuetype0;
+  NAPI_CALL(env, napi_typeof(env, input_array, &valuetype0));
+
+  NAPI_ASSERT(env, valuetype0 == napi_object,
+      "Wrong type of arguments. Expects a typed array as first argument.");
+
+  bool is_typedarray;
+  NAPI_CALL(env, napi_is_typedarray(env, input_array, &is_typedarray));
+
+  NAPI_ASSERT(env, is_typedarray,
+      "Wrong type of arguments. Expects a typed array as first argument.");
+
+  napi_valuetype valuetype1;
+  napi_value input_buffer = args[1];
+  NAPI_CALL(env, napi_typeof(env, input_buffer, &valuetype1));
+
+  NAPI_ASSERT(env, valuetype1 == napi_object,
+      "Wrong type of arguments. Expects an array buffer as second argument.");
+
+  bool is_arraybuffer;
+  NAPI_CALL(env, napi_is_arraybuffer(env, input_buffer, &is_arraybuffer));
+
+  NAPI_ASSERT(env, is_arraybuffer,
+      "Wrong type of arguments. Expects an array buffer as second argument.");
+
+  napi_typedarray_type type;
+  napi_value in_array_buffer;
+  size_t byte_offset;
+  size_t length;
+  NAPI_CALL(env, napi_get_typedarray_info(
+      env, input_array, &type, &length, NULL, &in_array_buffer, &byte_offset));
+
+  if (argc == 4) {
+    napi_valuetype valuetype2;
+    NAPI_CALL(env, napi_typeof(env, args[2], &valuetype2));
+
+    NAPI_ASSERT(env, valuetype2 == napi_number,
+        "Wrong type of arguments. Expects a number as third argument.");
+
+    uint32_t uint32_length;
+    NAPI_CALL(env, napi_get_value_uint32(env, args[2], &uint32_length));
+    length = uint32_length;
+
+    napi_valuetype valuetype3;
+    NAPI_CALL(env, napi_typeof(env, args[3], &valuetype3));
+
+    NAPI_ASSERT(env, valuetype3 == napi_number,
+        "Wrong type of arguments. Expects a number as third argument.");
+
+    uint32_t uint32_byte_offset;
+    NAPI_CALL(env, napi_get_value_uint32(env, args[3], &uint32_byte_offset));
+    byte_offset = uint32_byte_offset;
+  }
+
+  napi_value output_array;
+  NAPI_CALL(env, napi_create_typedarray(
+      env, type, length, input_buffer, byte_offset, &output_array));
+
+  return output_array;
+}
+
+EXTERN_C_START
+napi_value Init(napi_env env, napi_value exports) {
+  napi_property_descriptor descriptors[] = {
+    DECLARE_NAPI_PROPERTY("Multiply", Multiply),
+    DECLARE_NAPI_PROPERTY("External", External),
+    DECLARE_NAPI_PROPERTY("CreateTypedArray", CreateTypedArray),
+  };
+
+  NAPI_CALL(env, napi_define_properties(
+      env, exports, sizeof(descriptors) / sizeof(*descriptors), descriptors));
+
+  return exports;
+}
+EXTERN_C_END