fix: return error if both run:/uses: keys are used (#593)

fixes https://github.com/nektos/act/issues/536

pkg/runner/step_context.go

@@ -87,6 +87,8 @@ func (sc *StepContext) Executor() common.Executor {
 			sc.setupAction(actionDir, remoteAction.Path),
 			sc.runAction(actionDir, remoteAction.Path),
 		)
+	case model.StepTypeInvalid:
+		return common.NewErrorExecutor(fmt.Errorf("Invalid run/uses syntax for job:%s step:%+v", rc.Run, step))
 	}
 
 	return common.NewErrorExecutor(fmt.Errorf("Unable to determine how to run job:%s step:%+v", rc.Run, step))

pkg/runner/step_context_test.go

@@ -12,10 +12,13 @@ func TestStepContextExecutor(t *testing.T) {
 		"ubuntu-latest": "node:12.20.1-buster-slim",
 	}
 	tables := []TestJobFileInfo{
+		{"testdata", "uses-and-run-in-one-step", "push", "Invalid run/uses syntax for job:test step:Test", platforms, "linux/amd64"},
 		{"testdata", "uses-github-empty", "push", "Expected format {org}/{repo}[/path]@ref", platforms, "linux/amd64"},
 		{"testdata", "uses-github-noref", "push", "Expected format {org}/{repo}[/path]@ref", platforms, "linux/amd64"},
 		{"testdata", "uses-github-root", "push", "", platforms, "linux/amd64"},
 		{"testdata", "uses-github-path", "push", "", platforms, "linux/amd64"},
+
+		{"testdata", "uses-and-run-in-one-step", "push", "Invalid run/uses syntax for job:test step:Test", platforms, "linux/arm64"},
 		{"testdata", "uses-github-empty", "push", "Expected format {org}/{repo}[/path]@ref", platforms, "linux/arm64"},
 		{"testdata", "uses-github-noref", "push", "Expected format {org}/{repo}[/path]@ref", platforms, "linux/arm64"},
 		{"testdata", "uses-github-root", "push", "", platforms, "linux/arm64"},

pkg/runner/testdata/uses-and-run-in-one-step/push.yml

@@ -0,0 +1,10 @@
+name: uses-and-run-in-one-step
+on: push
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Test
+        run: echo
+        uses: actions/checkout@v2