diff --git a/package-lock.json b/package-lock.json
index 6bb6ff409512..5d96d2c6fe12 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -24,7 +24,7 @@
         "@types/w3c-image-capture": "^1.0.10",
         "@typescript-eslint/eslint-plugin": "^6.9.1",
         "@typescript-eslint/parser": "^6.9.1",
-        "@webgpu/types": "^0.1.59",
+        "@webgpu/types": "^0.1.60",
         "ansi-colors": "4.1.3",
         "babel-plugin-add-header-comment": "^1.0.3",
         "babel-plugin-const-enum": "^1.2.0",
@@ -1539,10 +1539,11 @@
       "dev": true
     },
     "node_modules/@webgpu/types": {
-      "version": "0.1.59",
-      "resolved": "https://registry.npmjs.org/@webgpu/types/-/types-0.1.59.tgz",
-      "integrity": "sha512-jZJ6ipNli+rn++/GAPqsZXfsgjx951wlCW7vNAg+oGdp0ZYidTOkbVTVeK2frzowuD5ch7MRz7leOEX1PMv43A==",
-      "dev": true
+      "version": "0.1.60",
+      "resolved": "https://registry.npmjs.org/@webgpu/types/-/types-0.1.60.tgz",
+      "integrity": "sha512-8B/tdfRFKdrnejqmvq95ogp8tf52oZ51p3f4QD5m5Paey/qlX4Rhhy5Y8tgFMi7Ms70HzcMMw3EQjH/jdhTwlA==",
+      "dev": true,
+      "license": "BSD-3-Clause"
     },
     "node_modules/abbrev": {
       "version": "1.1.1",
@@ -10076,9 +10077,9 @@
       "dev": true
     },
     "@webgpu/types": {
-      "version": "0.1.59",
-      "resolved": "https://registry.npmjs.org/@webgpu/types/-/types-0.1.59.tgz",
-      "integrity": "sha512-jZJ6ipNli+rn++/GAPqsZXfsgjx951wlCW7vNAg+oGdp0ZYidTOkbVTVeK2frzowuD5ch7MRz7leOEX1PMv43A==",
+      "version": "0.1.60",
+      "resolved": "https://registry.npmjs.org/@webgpu/types/-/types-0.1.60.tgz",
+      "integrity": "sha512-8B/tdfRFKdrnejqmvq95ogp8tf52oZ51p3f4QD5m5Paey/qlX4Rhhy5Y8tgFMi7Ms70HzcMMw3EQjH/jdhTwlA==",
       "dev": true
     },
     "abbrev": {
diff --git a/package.json b/package.json
index 3192733b4ceb..426c1239e35a 100644
--- a/package.json
+++ b/package.json
@@ -50,7 +50,7 @@
     "@types/w3c-image-capture": "^1.0.10",
     "@typescript-eslint/eslint-plugin": "^6.9.1",
     "@typescript-eslint/parser": "^6.9.1",
-    "@webgpu/types": "^0.1.59",
+    "@webgpu/types": "^0.1.60",
     "ansi-colors": "4.1.3",
     "babel-plugin-add-header-comment": "^1.0.3",
     "babel-plugin-const-enum": "^1.2.0",
diff --git a/src/webgpu/api/operation/command_buffer/copyBufferToBuffer.spec.ts b/src/webgpu/api/operation/command_buffer/copyBufferToBuffer.spec.ts
index 746d17e518ad..0fc202a8a145 100644
--- a/src/webgpu/api/operation/command_buffer/copyBufferToBuffer.spec.ts
+++ b/src/webgpu/api/operation/command_buffer/copyBufferToBuffer.spec.ts
@@ -1,6 +1,7 @@
 export const description = 'copyBufferToBuffer operation tests';
 
 import { makeTestGroup } from '../../../../common/framework/test_group.js';
+import { assert } from '../../../../common/util/util.js';
 import { AllFeaturesMaxLimitsGPUTest } from '../../../gpu_test.js';
 
 export const g = makeTestGroup(AllFeaturesMaxLimitsGPUTest);
@@ -16,13 +17,30 @@ g.test('single')
   - covers the end of the dstBuffer
   - covers neither the beginning nor the end of the dstBuffer`
   )
-  .paramsSubcasesOnly(u =>
+  .params(u =>
     u //
-      .combine('srcOffset', [0, 4, 8, 16])
-      .combine('dstOffset', [0, 4, 8, 16])
-      .combine('copySize', [0, 4, 8, 16])
-      .expand('srcBufferSize', p => [p.srcOffset + p.copySize, p.srcOffset + p.copySize + 8])
-      .expand('dstBufferSize', p => [p.dstOffset + p.copySize, p.dstOffset + p.copySize + 8])
+      // Whether the test case requires the newly-added method signature or not.
+      .combine('newSig', [false, true])
+      .beginSubcases()
+      .combine('srcOffset', [0, 4, 8, 16, undefined])
+      .combine('dstOffset', [0, 4, 8, 16, undefined])
+      .unless(
+        p => (p.srcOffset === undefined || p.dstOffset === undefined) && p.srcOffset !== p.dstOffset
+      )
+      .combine('copySize', [0, 4, 8, 16, undefined])
+      .expand('srcBufferSize', p => [
+        (p.srcOffset ?? 0) + (p.copySize ?? 0),
+        (p.srcOffset ?? 0) + (p.copySize ?? 0) + 8,
+      ])
+      .expand('dstBufferSize', p => [
+        (p.dstOffset ?? 0) + (p.copySize ?? 0),
+        (p.dstOffset ?? 0) + (p.copySize ?? 0) + 8,
+      ])
+      // Bifurcate the cases between newSig=false and newSig=true based on whether they need it.
+      .filter(p => {
+        const needsNewSignature = [p.srcOffset, p.dstOffset, p.copySize].includes(undefined);
+        return p.newSig === needsNewSignature;
+      })
   )
   .fn(t => {
     const { srcOffset, dstOffset, copySize, srcBufferSize, dstBufferSize } = t.params;
@@ -40,12 +58,25 @@ g.test('single')
     });
 
     const encoder = t.device.createCommandEncoder();
-    encoder.copyBufferToBuffer(src, srcOffset, dst, dstOffset, copySize);
-    t.device.queue.submit([encoder.finish()]);
+    if (srcOffset === undefined || dstOffset === undefined) {
+      assert(srcOffset === undefined && dstOffset === undefined);
+      encoder.copyBufferToBuffer(src, dst, copySize);
+    } else {
+      encoder.copyBufferToBuffer(src, srcOffset, dst, dstOffset, copySize);
+    }
+
+    const expectedSrcOffset = srcOffset ?? 0;
+    const expectedDstOffset = dstOffset ?? 0;
+    const expectedCopySize = copySize ?? srcBufferSize - expectedSrcOffset;
+
+    const isValid = dstBufferSize - expectedDstOffset >= expectedCopySize;
+    t.expectValidationError(() => {
+      t.device.queue.submit([encoder.finish()]);
+    }, !isValid);
 
     const expectedDstData = new Uint8Array(dstBufferSize);
-    for (let i = 0; i < copySize; ++i) {
-      expectedDstData[dstOffset + i] = srcData[srcOffset + i];
+    for (let i = 0; i < expectedCopySize; ++i) {
+      expectedDstData[expectedDstOffset + i] = srcData[expectedSrcOffset + i];
     }
 
     t.expectGPUBufferValuesEqual(dst, expectedDstData);