test: Add validation tests for GitHub branch resource schema

Author: thisispr

github/resource_github_branch_validation_test.go

@@ -0,0 +1,30 @@
+package github
+
+import "testing"
+
+func TestResourceGithubBranchAllowsUpdatesWhenBranchChanges(t *testing.T) {
+	resource := resourceGithubBranch()
+
+	branchSchema := resource.Schema["branch"]
+	if branchSchema == nil {
+		t.Fatal("branch field should exist in schema")
+	}
+	if branchSchema.ForceNew {
+		t.Error("branch field should not be ForceNew so renames are handled via update")
+	}
+}
+
+func TestResourceGithubBranchRecreatesWhenForceNewFieldsChange(t *testing.T) {
+	resource := resourceGithubBranch()
+
+	forceNewFields := []string{"repository", "source_branch", "source_sha"}
+	for _, name := range forceNewFields {
+		field := resource.Schema[name]
+		if field == nil {
+			t.Fatalf("field %s should exist in schema", name)
+		}
+		if !field.ForceNew {
+			t.Errorf("field %s should be ForceNew so changes recreate the resource", name)
+		}
+	}
+}