dev: update README.test.md

packages/renderer/src/render/pixglyph_canvas.rs

@@ -391,7 +391,7 @@ impl Canvas {
             acc += c;
             let a = (255.0 * acc.abs().min(1.0)) as u8;
             // Method 1: Use the same alpha for all channels.
-            // clamped[i * 4 + 3] = if a > 0 { 255 } else { 0 };
+            clamped[i * 4 + 3] = if a > 0 { 255 } else { 0 };
             // Method 2: Keep alpha.
             // clamped[i * 4 + 3] = a;
         }

packages/typst.ts/README.test.md

@@ -0,0 +1,26 @@
+Step1: bootstrap dev server:
+
+```
+// at root
+yarn dev
+```
+
+Step2: watch and build dist/xxx.js (todo: merge):
+
+```
+cd packages/typst.ts && npx vite build --watch -c vite.config.mjs -- --component=main
+cd packages/typst.ts && npx vite build --watch -c vite.config.mjs -- --component=main2
+cd packages/typst.ts && npx vite build --watch -c vite.config.mjs -- --component=canvas-worker
+```
+
+Step3: Build wasm (if changed rust code)
+
+```
+cd packages/renderer && yarn build
+```
+
+Step4: Test in chrome
+
+```
+cd packages/renderer && yarn test:chrome
+```