fix(org): adding unique constrants to not allow an org to be added twice with same id (#10243)

# Which Problems Are Solved

When adding 2 orgs with the same ID, you get a positive response from
the API, later when the org is projected, it errors due to the id
already in use

# How the Problems Are Solved

Check org with orgID specified does not already exist before adding
events

# Additional Changes

Added additional test case for adding same org with same name twice


# Additional Context

- Closes https://github.com/zitadel/zitadel/issues/10127

---------

Co-authored-by: Silvan <27845747+adlerhurst@users.noreply.github.com>

internal/api/grpc/org/v2beta/integration_test/org_test.go

@@ -47,14 +47,17 @@ func TestMain(m *testing.M) {
 func TestServer_CreateOrganization(t *testing.T) {
 	idpResp := Instance.AddGenericOAuthProvider(CTX, Instance.DefaultOrg.Id)
 
-	tests := []struct {
-		name    string
-		ctx     context.Context
-		req     *v2beta_org.CreateOrganizationRequest
-		id      string
-		want    *v2beta_org.CreateOrganizationResponse
-		wantErr bool
-	}{
+	type test struct {
+		name     string
+		ctx      context.Context
+		req      *v2beta_org.CreateOrganizationRequest
+		id       string
+		testFunc func(ctx context.Context, t *testing.T)
+		want     *v2beta_org.CreateOrganizationResponse
+		wantErr  bool
+	}
+
+	tests := []test{
 		{
 			name: "missing permission",
 			ctx:  Instance.WithAuthorization(CTX, integration.UserTypeOrgOwner),
@@ -73,6 +76,25 @@ func TestServer_CreateOrganization(t *testing.T) {
 			},
 			wantErr: true,
 		},
+		func() test {
+			orgName := gofakeit.Name()
+			return test{
+				name: "adding org with same name twice",
+				ctx:  CTX,
+				req: &v2beta_org.CreateOrganizationRequest{
+					Name:   orgName,
+					Admins: nil,
+				},
+				testFunc: func(ctx context.Context, t *testing.T) {
+					// create org initially
+					_, err := Client.CreateOrganization(ctx, &v2beta_org.CreateOrganizationRequest{
+						Name: orgName,
+					})
+					require.NoError(t, err)
+				},
+				wantErr: true,
+			}
+		}(),
 		{
 			name: "invalid admin type",
 			ctx:  CTX,
@@ -212,9 +234,34 @@ func TestServer_CreateOrganization(t *testing.T) {
 				Id: "custom_id",
 			},
 		},
+		func() test {
+			orgID := gofakeit.Name()
+			return test{
+				name: "adding org with same ID twice",
+				ctx:  CTX,
+				req: &v2beta_org.CreateOrganizationRequest{
+					Id:     &orgID,
+					Name:   gofakeit.Name(),
+					Admins: nil,
+				},
+				testFunc: func(ctx context.Context, t *testing.T) {
+					// create org initially
+					_, err := Client.CreateOrganization(ctx, &v2beta_org.CreateOrganizationRequest{
+						Id:   &orgID,
+						Name: gofakeit.Name(),
+					})
+					require.NoError(t, err)
+				},
+				wantErr: true,
+			}
+		}(),
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
+			if tt.testFunc != nil {
+				tt.testFunc(tt.ctx, t)
+			}
+
 			got, err := Client.CreateOrganization(tt.ctx, tt.req)
 			if tt.wantErr {
 				require.Error(t, err)