unified tests into matrix

.github/workflows/test.yml

@@ -3,8 +3,16 @@ on: [push, pull_request]
 name: Continuous integration
 
 jobs:
-  check:
-    name: Check
+  test:
+    name: "Test"
+    strategy:
+      matrix:
+        cmd: [check, fmt,clippy]
+        include:
+          - cmd: fmt
+            args: "--all -- --check"
+          - cmd: clippy
+            arg: "-- -D warnings"
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
@@ -15,36 +23,5 @@ jobs:
           override: true
       - uses: actions-rs/cargo@v1
         with:
-          command: check
-
-  fmt:
-    name: Rustfmt
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-          toolchain: stable
-          override: true
-      - run: rustup component add rustfmt
-      - uses: actions-rs/cargo@v1
-        with:
-          command: fmt
-          args: --all -- --check
-
-  clippy:
-    name: Clippy
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-          toolchain: stable
-          override: true
-      - run: rustup component add clippy
-      - uses: actions-rs/cargo@v1
-        with:
-          command: clippy
-          args: -- -D warnings
+          command: ${{ matrix.cmd }}
+          args: ${{ matrix.arg }}