diff --git a/src/webgpu-debug-helper.ts b/src/webgpu-debug-helper.ts
index f624521..7f7a18f 100644
--- a/src/webgpu-debug-helper.ts
+++ b/src/webgpu-debug-helper.ts
@@ -188,4 +188,15 @@ if (typeof GPUDevice !== 'undefined') {
     assert(y + height <= targetHeight, 'y + height > texture.height');
   });
 
+  wrapFunctionBefore(GPURenderPassEncoder, 'setScissorRect', function(this: GPURenderPassEncoder, x: number, y: number, width: number, height: number) {
+    const {
+      targetWidth,
+      targetHeight,
+    } = renderPassToPassInfoMap.get(this)!;
+    assert(x >= 0, 'x < 0');
+    assert(y >= 0, 'y < 0');
+    assert(x + width <= targetWidth, 'x + width > texture.width');
+    assert(y + height <= targetHeight, 'y + height > texture.height');
+  });
+
 }
\ No newline at end of file
diff --git a/test/tests/webgpu-debug-helper-tests.js b/test/tests/webgpu-debug-helper-tests.js
index 963e152..d87fb74 100644
--- a/test/tests/webgpu-debug-helper-tests.js
+++ b/test/tests/webgpu-debug-helper-tests.js
@@ -53,7 +53,88 @@ describe('test webgpu-debug-helper', () => {
 
   describe('test render pass encoder', () => {
 
-    describe('should generate error on setViewport', () => {
+    describe('check errors on beginRenderPass', () => {
+
+      it('errors when colorAttachments are not the same size', async () => {
+        const adapter = await navigator.gpu.requestAdapter();
+        const device = await adapter.requestDevice();
+        const textures = [2, 3].map(width => device.createTexture({
+          size: [width, 3],
+          usage: GPUTextureUsage.RENDER_ATTACHMENT,
+          format: 'rgba8unorm',
+        }));
+        const encoder = device.createCommandEncoder();
+        expectValidationError(true, () => {
+          encoder.beginRenderPass({
+            colorAttachments: textures.map(texture => ({
+              view: texture.createView(),
+              clearColor: [0, 0, 0, 0],
+              loadOp: 'clear',
+              storeOp: 'store',
+            })),
+          });
+        });
+      });
+
+      it('errors when depthStencilAttachment is a different size than the colorAttachments', async () => {
+        const adapter = await navigator.gpu.requestAdapter();
+        const device = await adapter.requestDevice();
+        const colorTexture = device.createTexture({
+          size: [2, 2],
+          usage: GPUTextureUsage.RENDER_ATTACHMENT,
+          format: 'rgba8unorm',
+        });
+        const depthTexture = device.createTexture({
+          size: [2, 3],
+          usage: GPUTextureUsage.RENDER_ATTACHMENT,
+          format: 'depth24plus',
+        });
+        const encoder = device.createCommandEncoder();
+        expectValidationError(true, () => {
+          encoder.beginRenderPass({
+            colorAttachments: [{
+              view: colorTexture.createView(),
+              clearColor: [0, 0, 0, 0],
+              loadOp: 'clear',
+              storeOp: 'store',
+            }],
+            depthStencilAttachment: {
+              view: depthTexture.createView(),
+              depthClearValue: 1.0,
+              depthLoadOp: 'clear',
+              depthStoreOp: 'store',
+            },
+          });
+        });
+      });
+
+    });
+
+    describe('check errors on setViewport', () => {
+
+      const tests = [
+        { success: true, args: [0, 0, 2, 3, 0, 1], desc: 'valid' },
+        { success: false, args: [-1, 0, 1, 1, 0, 1], desc: 'x < 0' },
+        { success: false, args: [ 0, -1, 1, 1, 0, 1], desc: 'y < 0' },
+        { success: false, args: [ 0, 0, 3, 1, 0, 1], desc: 'x + width > targetWidth' },
+        { success: false, args: [ 1, 0, 2, 1, 0, 1], desc: 'x + width > targetWidth' },
+        { success: false, args: [ 0, 0, 1, 4, 0, 1], desc: 'y + height > targetHeight' },
+        { success: false, args: [ 0, 1, 1, 3, 0, 1], desc: 'y + height > targetHeight' },
+      ];
+
+      for (let {success, args, desc} of tests) {
+        it(desc, async () => {
+          const pass = await createRenderPass();
+            expectValidationError(!success, () => {
+              pass.setViewport(...args);
+            });
+        });
+
+      }
+  
+    });
+
+    describe('check errors on setScissorRect', () => {
 
       const tests = [
         { success: true, args: [0, 0, 2, 3, 0, 1], desc: 'valid' },