interrupted execution now exits with an error

command/apply_test.go

@@ -924,7 +924,7 @@ func TestApply_shutdown(t *testing.T) {
 		"-auto-approve",
 		testFixturePath("apply-shutdown"),
 	}
-	if code := c.Run(args); code != 0 {
+	if code := c.Run(args); code != 1 {
 		t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
 	}
 

command/plan_test.go

@@ -845,12 +845,8 @@ func TestPlan_shutdown(t *testing.T) {
 		"-state=nonexistent.tfstate",
 		testFixturePath("apply-shutdown"),
 	})
-	if code != 0 {
-		// FIXME: In retrospect cancellation ought to be an unsuccessful exit
-		// case, but we need to do that cautiously in case it impacts automation
-		// wrappers. See the note about this in the terraform.stopHook
-		// implementation for more.
-		t.Errorf("wrong exit code %d; want 0\noutput:\n%s", code, ui.OutputWriter.String())
+	if code != 1 {
+		t.Errorf("wrong exit code %d; want 1\noutput:\n%s", code, ui.OutputWriter.String())
 	}
 
 	select {