1 files changed, 98 insertions, 0 deletions
diff --git a/dom/webgpu/tests/cts/checkout/src/webgpu/api/operation/command_buffer/basic.spec.ts b/dom/webgpu/tests/cts/checkout/src/webgpu/api/operation/command_buffer/basic.spec.ts
new file mode 100644
index 0000000000..06a15c4e31
--- /dev/null
+++ b/dom/webgpu/tests/cts/checkout/src/webgpu/api/operation/command_buffer/basic.spec.ts
@@ -0,0 +1,98 @@
+export const description = `
+Basic tests.
+`;
+
+import { makeTestGroup } from '../../../../common/framework/test_group.js';
+import { memcpy } from '../../../../common/util/util.js';
+import { GPUTest } from '../../../gpu_test.js';
+
+export const g = makeTestGroup(GPUTest);
+
+g.test('empty').fn(async t => {
+  const encoder = t.device.createCommandEncoder();
+  const cmd = encoder.finish();
+  t.device.queue.submit([cmd]);
+});
+
+g.test('b2t2b').fn(async t => {
+  const data = new Uint32Array([0x01020304]);
+
+  const src = t.device.createBuffer({
+    mappedAtCreation: true,
+    size: 4,
+    usage: GPUBufferUsage.COPY_SRC | GPUBufferUsage.COPY_DST,
+  });
+  memcpy({ src: data }, { dst: src.getMappedRange() });
+  src.unmap();
+
+  const dst = t.device.createBuffer({
+    size: 4,
+    usage: GPUBufferUsage.COPY_SRC | GPUBufferUsage.COPY_DST,
+  });
+
+  const mid = t.device.createTexture({
+    size: { width: 1, height: 1, depthOrArrayLayers: 1 },
+    format: 'rgba8uint',
+    usage: GPUTextureUsage.COPY_SRC | GPUTextureUsage.COPY_DST,
+  });
+
+  const encoder = t.device.createCommandEncoder();
+  encoder.copyBufferToTexture(
+    { buffer: src, bytesPerRow: 256 },
+    { texture: mid, mipLevel: 0, origin: { x: 0, y: 0, z: 0 } },
+    { width: 1, height: 1, depthOrArrayLayers: 1 }
+  );
+  encoder.copyTextureToBuffer(
+    { texture: mid, mipLevel: 0, origin: { x: 0, y: 0, z: 0 } },
+    { buffer: dst, bytesPerRow: 256 },
+    { width: 1, height: 1, depthOrArrayLayers: 1 }
+  );
+  t.device.queue.submit([encoder.finish()]);
+
+  t.expectGPUBufferValuesEqual(dst, data);
+});
+
+g.test('b2t2t2b').fn(async t => {
+  const data = new Uint32Array([0x01020304]);
+
+  const src = t.device.createBuffer({
+    mappedAtCreation: true,
+    size: 4,
+    usage: GPUBufferUsage.COPY_SRC | GPUBufferUsage.COPY_DST,
+  });
+  memcpy({ src: data }, { dst: src.getMappedRange() });
+  src.unmap();
+
+  const dst = t.device.createBuffer({
+    size: 4,
+    usage: GPUBufferUsage.COPY_SRC | GPUBufferUsage.COPY_DST,
+  });
+
+  const midDesc: GPUTextureDescriptor = {
+    size: { width: 1, height: 1, depthOrArrayLayers: 1 },
+    format: 'rgba8uint',
+    usage: GPUTextureUsage.COPY_SRC | GPUTextureUsage.COPY_DST,
+  };
+  const mid1 = t.device.createTexture(midDesc);
+  const mid2 = t.device.createTexture(midDesc);
+
+  const encoder = t.device.createCommandEncoder();
+  encoder.copyBufferToTexture(
+    { buffer: src, bytesPerRow: 256 },
+    { texture: mid1, mipLevel: 0, origin: { x: 0, y: 0, z: 0 } },
+    { width: 1, height: 1, depthOrArrayLayers: 1 }
+  );
+  encoder.copyTextureToTexture(
+    { texture: mid1, mipLevel: 0, origin: { x: 0, y: 0, z: 0 } },
+    { texture: mid2, mipLevel: 0, origin: { x: 0, y: 0, z: 0 } },
+    { width: 1, height: 1, depthOrArrayLayers: 1 }
+  );
+  encoder.copyTextureToBuffer(
+    { texture: mid2, mipLevel: 0, origin: { x: 0, y: 0, z: 0 } },
+    { buffer: dst, bytesPerRow: 256 },
+    { width: 1, height: 1, depthOrArrayLayers: 1 }
+  );
+  t.device.queue.submit([encoder.finish()]);
+
+  t.expectGPUBufferValuesEqual(dst, data);
+});