fix ci

Author: kateinoigakukun

.github/workflows/test.yml

@@ -13,6 +13,8 @@ jobs:
     runs-on: Ubuntu-18.04
     steps:
       - uses: actions/checkout@v2
+        with:
+          submodules: true
       - name: Setup swiftenv
         run: |
           git clone https://github.com/kylef/swiftenv.git ~/.swiftenv
@@ -33,6 +35,8 @@ jobs:
     runs-on: macOS-10.15
     steps:
       - uses: actions/checkout@v2
+        with:
+          submodules: true
       - run: sudo xcode-select -s "${{ matrix.xcode-version }}"
       - run: swift --version
       - run: swift test
@@ -41,6 +45,8 @@ jobs:
     runs-on: macOS-10.15
     steps:
       - uses: actions/checkout@v2
+        with:
+          submodules: true
       - run: swift test --enable-code-coverage
       - run: echo "SWIFT_CODECOV_PATH=$(swift test --show-codecov-path)" >> $GITHUB_ENV
       - uses: codecov/codecov-action@v1

Tests/LinuxMain.swift

@@ -1,7 +1 @@
-import XCTest
-
-import WAMRTests
-
-var tests = [XCTestCaseEntry]()
-tests += WAMRTests.allTests()
-XCTMain(tests)
+fatalError("Use `swift test --enable-test-discovery` to run tests")