1 files changed, 59 insertions, 0 deletions
diff --git a/dom/webgpu/tests/cts/checkout/src/webgpu/api/validation/createSampler.spec.ts b/dom/webgpu/tests/cts/checkout/src/webgpu/api/validation/createSampler.spec.ts
new file mode 100644
index 0000000000..1e379fed26
--- /dev/null
+++ b/dom/webgpu/tests/cts/checkout/src/webgpu/api/validation/createSampler.spec.ts
@@ -0,0 +1,59 @@
+export const description = `
+createSampler validation tests.
+`;
+
+import { makeTestGroup } from '../../../common/framework/test_group.js';
+
+import { ValidationTest } from './validation_test.js';
+
+export const g = makeTestGroup(ValidationTest);
+
+g.test('lodMinAndMaxClamp')
+  .desc('test different combinations of min and max clamp values')
+  .paramsSubcasesOnly(u =>
+    u //
+      .combine('lodMinClamp', [-4e-30, -1, 0, 0.5, 1, 10, 4e30])
+      .combine('lodMaxClamp', [-4e-30, -1, 0, 0.5, 1, 10, 4e30])
+  )
+  .fn(async t => {
+    t.expectValidationError(() => {
+      t.device.createSampler({
+        lodMinClamp: t.params.lodMinClamp,
+        lodMaxClamp: t.params.lodMaxClamp,
+      });
+    }, t.params.lodMinClamp > t.params.lodMaxClamp || t.params.lodMinClamp < 0 || t.params.lodMaxClamp < 0);
+  });
+
+g.test('maxAnisotropy')
+  .desc('test different maxAnisotropy values and combinations with min/mag/mipmapFilter')
+  .params(u =>
+    u //
+      .beginSubcases()
+      .combineWithParams([
+        ...u.combine('maxAnisotropy', [-1, undefined, 0, 1, 2, 4, 7, 16, 32, 33, 1024]),
+        { minFilter: 'nearest' as const },
+        { magFilter: 'nearest' as const },
+        { mipmapFilter: 'nearest' as const },
+      ])
+  )
+  .fn(async t => {
+    const {
+      maxAnisotropy = 1,
+      minFilter = 'linear',
+      magFilter = 'linear',
+      mipmapFilter = 'linear',
+    } = t.params as {
+      maxAnisotropy?: number;
+      minFilter?: GPUFilterMode;
+      magFilter?: GPUFilterMode;
+      mipmapFilter?: GPUFilterMode;
+    };
+    t.expectValidationError(() => {
+      t.device.createSampler({
+        minFilter,
+        magFilter,
+        mipmapFilter,
+        maxAnisotropy,
+      });
+    }, maxAnisotropy < 1 || (maxAnisotropy > 1 && !(minFilter === 'linear' && magFilter === 'linear' && mipmapFilter === 'linear')));
+  });