1 files changed, 122 insertions, 0 deletions
diff --git a/dom/webgpu/tests/cts/checkout/src/webgpu/shader/execution/expression/call/builtin/textureStore.spec.ts b/dom/webgpu/tests/cts/checkout/src/webgpu/shader/execution/expression/call/builtin/textureStore.spec.ts
new file mode 100644
index 0000000000..efef971e24
--- /dev/null
+++ b/dom/webgpu/tests/cts/checkout/src/webgpu/shader/execution/expression/call/builtin/textureStore.spec.ts
@@ -0,0 +1,122 @@
+export const description = `
+Writes a single texel to a texture.
+
+The channel format T depends on the storage texel format F.
+See the texel format table for the mapping of texel format to channel format.
+
+Note: An out-of-bounds access occurs if:
+ * any element of coords is outside the range [0, textureDimensions(t)) for the corresponding element, or
+ * array_index is outside the range of [0, textureNumLayers(t))
+
+If an out-of-bounds access occurs, the built-in function may do any of the following:
+ * not be executed
+ * store value to some in bounds texel
+`;
+
+import { makeTestGroup } from '../../../../../../common/framework/test_group.js';
+import { GPUTest } from '../../../../../gpu_test.js';
+import { TexelFormats } from '../../../../types.js';
+
+import { generateCoordBoundaries } from './utils.js';
+
+export const g = makeTestGroup(GPUTest);
+
+g.test('store_1d_coords')
+  .specURL('https://www.w3.org/TR/WGSL/#texturestore')
+  .desc(
+    `
+C is i32 or u32
+
+fn textureStore(t: texture_storage_1d<F,write>, coords: C, value: vec4<T>)
+
+Parameters:
+ * t  The sampled, depth, or external texture to sample.
+ * s  The sampler type.
+ * coords The texture coordinates used for sampling.
+ * value The new texel value
+`
+  )
+  .params(u =>
+    u
+      .combineWithParams(TexelFormats)
+      .beginSubcases()
+      .combine('coords', generateCoordBoundaries(1))
+      .combine('C', ['i32', 'u32'] as const)
+  )
+  .unimplemented();
+
+g.test('store_2d_coords')
+  .specURL('https://www.w3.org/TR/WGSL/#texturestore')
+  .desc(
+    `
+C is i32 or u32
+
+fn textureStore(t: texture_storage_2d<F,write>, coords: vec2<C>, value: vec4<T>)
+
+Parameters:
+ * t  The sampled, depth, or external texture to sample.
+ * s  The sampler type.
+ * coords The texture coordinates used for sampling.
+ * value The new texel value
+`
+  )
+  .params(u =>
+    u
+      .combineWithParams(TexelFormats)
+      .beginSubcases()
+      .combine('coords', generateCoordBoundaries(2))
+      .combine('C', ['i32', 'u32'] as const)
+  )
+  .unimplemented();
+
+g.test('store_array_2d_coords')
+  .specURL('https://www.w3.org/TR/WGSL/#texturestore')
+  .desc(
+    `
+C is i32 or u32
+
+fn textureStore(t: texture_storage_2d_array<F,write>, coords: vec2<C>, array_index: C, value: vec4<T>)
+
+Parameters:
+ * t  The sampled, depth, or external texture to sample.
+ * s  The sampler type.
+ * array_index The 0-based texture array index
+ * coords The texture coordinates used for sampling.
+ * value The new texel value
+`
+  )
+  .params(
+    u =>
+      u
+        .combineWithParams(TexelFormats)
+        .beginSubcases()
+        .combine('coords', generateCoordBoundaries(2))
+        .combine('C', ['i32', 'u32'] as const)
+        .combine('C_value', [-1, 0, 1, 2, 3, 4] as const)
+    /* array_index not param'd as out-of-bounds is implementation specific */
+  )
+  .unimplemented();
+
+g.test('store_3d_coords')
+  .specURL('https://www.w3.org/TR/WGSL/#texturestore')
+  .desc(
+    `
+C is i32 or u32
+
+fn textureStore(t: texture_storage_3d<F,write>, coords: vec3<C>, value: vec4<T>)
+
+Parameters:
+ * t  The sampled, depth, or external texture to sample.
+ * s  The sampler type.
+ * coords The texture coordinates used for sampling.
+ * value The new texel value
+`
+  )
+  .params(u =>
+    u
+      .combineWithParams(TexelFormats)
+      .beginSubcases()
+      .combine('coords', generateCoordBoundaries(3))
+      .combine('C', ['i32', 'u32'] as const)
+  )
+  .unimplemented();