add GitHub test workflow

.github/workflows/test.yml

@@ -0,0 +1,39 @@
+name: Test
+
+on: [push]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v1
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: '12.x'
+
+      - name: Cache node modules
+        uses: actions/cache@v1
+        with:
+          path: ~/.npm
+          key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: ${{ runner.os }}-node-
+
+      - name: Cache Gatsby build output
+        uses: actions/cache@v1
+        with:
+          path: public
+          key: ${{ runner.os }}-public
+
+      - name: Install Dependencies
+        run: npm ci
+
+      - name: Test
+        run: npm test
+
+      - name: Build
+        run: npm run build
+        env:
+          CI: true
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

src/components/atoms/Icon.test.tsx

@@ -11,9 +11,6 @@ describe('Icon', () => {
     rerender(<Icon name={'Download'} />)
     expect(container.firstChild.nodeName).toBe('svg')
 
-    rerender(<Icon name={'Blog'} />)
-    expect(container.firstChild.nodeName).toBe('svg')
-
     rerender(<Icon name={'Twitter'} />)
     expect(container.firstChild.nodeName).toBe('svg')
   })