fix: missing defaults in nodejs pre (#1349)

* Update action.go

* add Test

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

pkg/runner/action.go

@@ -481,6 +481,8 @@ func runPreStep(step actionStep) common.Executor {
 
 		switch action.Runs.Using {
 		case model.ActionRunsUsingNode12, model.ActionRunsUsingNode16:
+			// defaults in pre steps were missing, however provided inputs are available
+			populateEnvsFromInput(ctx, step.getEnv(), action, rc)
 			// todo: refactor into step
 			var actionDir string
 			var actionPath string

pkg/runner/runner_test.go

@@ -137,6 +137,7 @@ func TestRunEvent(t *testing.T) {
 		{workdir, "uses-composite", "push", "", platforms},
 		{workdir, "uses-composite-with-error", "push", "Job 'failing-composite-action' failed", platforms},
 		{workdir, "uses-nested-composite", "push", "", platforms},
+		{workdir, "remote-action-composite-js-pre-with-defaults", "push", "", platforms},
 		{workdir, "uses-workflow", "push", "reusable workflows are currently not supported (see https://github.com/nektos/act/issues/826 for updates)", platforms},
 		{workdir, "uses-docker-url", "push", "", platforms},
 		{workdir, "act-composite-env-test", "push", "", platforms},

pkg/runner/testdata/remote-action-composite-js-pre-with-defaults/push.yml

@@ -0,0 +1,23 @@
+name: remote-action-composite-js-pre-with-defaults
+on: push
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: nektos/act-test-actions/composite-js-pre-with-defaults/js@main
+      with:
+        in: nix
+    - uses: nektos/act-test-actions/composite-js-pre-with-defaults@main
+      with:
+        in: secretval
+    - uses: nektos/act-test-actions/composite-js-pre-with-defaults@main
+      with:
+        in: secretval
+    - uses: nektos/act-test-actions/composite-js-pre-with-defaults/js@main
+      with:
+        pre: "true"
+        in: nix
+    - uses: nektos/act-test-actions/composite-js-pre-with-defaults/js@main
+      with:
+        in: nix