node-api-cts/tests/js-native-api/test_sharedarraybuffer/test.js at ece4e699d6c784efe803fd422f885c4294503654 · nodejs/node-api-cts · GitHub

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"use strict";

// SharedArrayBuffer support is an experimental feature.
if (!experimentalFeatures.sharedArrayBuffer) {
  skipTest();
}

const test_sharedarraybuffer = loadAddon("test_sharedarraybuffer");

{
  const sab = new SharedArrayBuffer(16);
  const ab = new ArrayBuffer(16);
  const obj = {};
  const arr = [];

  assert.strictEqual(
    test_sharedarraybuffer.TestIsSharedArrayBuffer(sab),
    true,
  );
  assert.strictEqual(
    test_sharedarraybuffer.TestIsSharedArrayBuffer(ab),
    false,
  );
  assert.strictEqual(
    test_sharedarraybuffer.TestIsSharedArrayBuffer(obj),
    false,
  );
  assert.strictEqual(
    test_sharedarraybuffer.TestIsSharedArrayBuffer(arr),
    false,
  );
  assert.strictEqual(
    test_sharedarraybuffer.TestIsSharedArrayBuffer(null),
    false,
  );
  assert.strictEqual(
    test_sharedarraybuffer.TestIsSharedArrayBuffer(undefined),
    false,
  );
}

// Test node_api_create_sharedarraybuffer
{
  const sab = test_sharedarraybuffer.TestCreateSharedArrayBuffer(16);
  assert(sab instanceof SharedArrayBuffer);
  assert.strictEqual(sab.byteLength, 16);
}

// Test node_api_create_get_sharedarraybuffer_info
{
  const sab = new SharedArrayBuffer(32);
  const byteLength = test_sharedarraybuffer.TestGetSharedArrayBufferInfo(sab);
  assert.strictEqual(byteLength, 32);
}

// Test data access
{
  const sab = new SharedArrayBuffer(8);
  const result = test_sharedarraybuffer.TestSharedArrayBufferData(sab);
  assert.strictEqual(result, true);

  // Check if data was written correctly
  const view = new Uint8Array(sab);
  for (let i = 0; i < 8; i++) {
    assert.strictEqual(view[i], i % 256);
  }
}

// Test data pointer from existing SharedArrayBuffer
{
  const sab = new SharedArrayBuffer(16);
  const result = test_sharedarraybuffer.TestSharedArrayBufferData(sab);
  assert.strictEqual(result, true);
}

// Test zero-length SharedArrayBuffer
{
  const sab = test_sharedarraybuffer.TestCreateSharedArrayBuffer(0);
  assert(sab instanceof SharedArrayBuffer);
  assert.strictEqual(sab.byteLength, 0);
}

// Test invalid arguments
{
  assert.throws(
    () => {
      test_sharedarraybuffer.TestGetSharedArrayBufferInfo({});
    },
    { name: "Error", message: "Invalid argument" },
  );
}