add npm test to CI

.github/workflows/ci.yml

@@ -25,10 +25,19 @@ jobs:
       with:
         path: |
           ./target
-          ~/.cargo                        
+          ~/.cargo
         key: debug-${{ runner.os }}-${{ hashFiles('rust-toolchain') }}-${{ hashFiles('Cargo.lock') }}
         restore-keys: |
           debug-${{ runner.os }}-${{ hashFiles('rust-toolchain') }}-
           debug-${{ runner.os }}-
     - name: Run tests
-      run: cargo test --verbose
+      run: cargo test --verbose
+    - name: Install wasm-pack
+      run: curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
+    - run: wasm-pack build --target nodejs
+    - uses: actions/setup-node@v3
+      with:
+        node-version: 16
+        cache: 'npm'
+    - run: npm ci
+    - run: npm test

test/node-api.js

@@ -24,6 +24,20 @@ describe("something", function() {
     expect(function() {
       p.process(`const thing = "face";
   <template>Hi`);
-    }).to.throw('error at: anon-file:2:39: 2:39 - Unexpected eof');
+    }).to.throw(`× Unexpected eof
+   ╭─[:1:1]
+ 1 │ const thing = "face";
+ 2 │   <template>Hi
+   ╰────`);
   })
+
+  it("shows a graphical error info that points to the problem", function() {
+    expect(function() {
+      p.process(`class {`)
+    }).to.throw(`× Expected ident
+   ╭─[:1:1]
+ 1 │ class {
+   ·       ─
+   ╰────`);
+  });
 })