fix: Ensure integration_id is treated as optional and nil

Author: Danielku15

github/resource_github_organization_ruleset.go

@@ -250,7 +250,6 @@ func resourceGithubOrganizationRuleset() *schema.Resource {
 												"integration_id": {
 													Type:        schema.TypeInt,
 													Optional:    true,
-													Default:     0,
 													Description: "The optional integration ID that this status check must originate from.",
 												},
 											},

github/resource_github_repository_ruleset.go

@@ -238,7 +238,6 @@ func resourceGithubRepositoryRuleset() *schema.Resource {
 												"integration_id": {
 													Type:        schema.TypeInt,
 													Optional:    true,
-													Default:     0,
 													Description: "The optional integration ID that this status check must originate from.",
 												},
 											},

github/resource_github_repository_ruleset_test.go

@@ -115,6 +115,83 @@ func TestGithubRepositoryRulesets(t *testing.T) {
 
 	})
 
+	t.Run("Creates and updates repository rulesets including checks without errors", func(t *testing.T) {
+
+		config := fmt.Sprintf(`
+			resource "github_repository" "test" {
+				name = "tf-acc-test-checks-%s"
+				auto_init = false
+				vulnerability_alerts = true
+			}
+
+			resource "github_repository_ruleset" "test" {
+				name        = "test"
+				repository  = github_repository.test.id
+				target      = "branch"
+				enforcement = "active"
+
+				conditions {
+					ref_name {
+						include = ["refs/heads/main"]
+						exclude = []
+					}
+				}
+
+				rules {
+					deletion                = true
+					non_fast_forward        = true
+					
+					pull_request {
+						required_approving_review_count   = 1
+						required_review_thread_resolution = false
+						require_code_owner_review         = false
+						dismiss_stale_reviews_on_push     = true
+						require_last_push_approval        = false
+					}
+
+					required_status_checks {
+						required_check {
+							context = "ci"
+						}
+						strict_required_status_checks_policy = false
+					}
+				}
+			}
+		`, randomID)
+
+		check := resource.ComposeTestCheckFunc(
+			resource.TestCheckNoResourceAttr(
+				"github_repository_ruleset.test", "rules.0.required_status_checks.0.required_check.0.integration_id",
+			),
+		)
+
+		testCase := func(t *testing.T, mode string) {
+			resource.Test(t, resource.TestCase{
+				PreCheck:  func() { skipUnlessMode(t, mode) },
+				Providers: testAccProviders,
+				Steps: []resource.TestStep{
+					{
+						Config: config,
+						Check:  check,
+					},
+				},
+			})
+		}
+
+		t.Run("with an anonymous account", func(t *testing.T) {
+			t.Skip("anonymous account not supported for this operation")
+		})
+
+		t.Run("with an individual account", func(t *testing.T) {
+			testCase(t, individual)
+		})
+
+		t.Run("with an organization account", func(t *testing.T) {
+			testCase(t, organization)
+		})
+
+	})
+
 	t.Run("Creates and updates repository rulesets with enterprise features without errors", func(t *testing.T) {
 		if isEnterprise != "true" {
 			t.Skip("Skipping because `ENTERPRISE_ACCOUNT` is not set or set to false")

github/respository_rules_utils.go

@@ -310,14 +310,16 @@ func expandRules(input []interface{}, org bool) []*github.RepositoryRule {
 			requiredStatusChecksSet := requiredStatusChecksInput.(*schema.Set)
 			for _, checkMap := range requiredStatusChecksSet.List() {
 				check := checkMap.(map[string]interface{})
-				integrationID := github.Int64(int64(check["integration_id"].(int)))
 
 				params := github.RuleRequiredStatusChecks{
 					Context: check["context"].(string),
 				}
 
-				if *integrationID != 0 {
-					params.IntegrationID = integrationID
+				if v, ok := check["integration_id"].(int); ok {
+					integrationID := github.Int64(int64(v))
+					if *integrationID != 0 {
+						params.IntegrationID = integrationID
+					}
 				}
 
 				requiredStatusChecks = append(requiredStatusChecks, params)
@@ -490,14 +492,14 @@ func flattenRules(rules []*github.RepositoryRule, org bool) []interface{} {
 
 			requiredStatusChecksSlice := make([]map[string]interface{}, 0)
 			for _, check := range params.RequiredStatusChecks {
-				integrationID := int64(0)
+
+				checkMap := make(map[string]interface{})
+				checkMap["context"] = check.Context
 				if check.IntegrationID != nil {
-					integrationID = *check.IntegrationID
+					checkMap["integration_id"] = *check.IntegrationID
 				}
-				requiredStatusChecksSlice = append(requiredStatusChecksSlice, map[string]interface{}{
-					"context":        check.Context,
-					"integration_id": integrationID,
-				})
+
+				requiredStatusChecksSlice = append(requiredStatusChecksSlice, checkMap)
 			}
 
 			rule := make(map[string]interface{})