From c5ee563ca25c6812729c6b664940bde9a47a0ffb Mon Sep 17 00:00:00 2001
From: "k.goto" <kenta.goto.1228@gmail.com>
Date: Tue, 7 Mar 2023 20:40:53 +0900
Subject: [PATCH] feat: #81 Do not display nested child stacks (#121)

---
 internal/operation/cloudformation_stack.go    |  5 ++
 .../operation/cloudformation_stack_test.go    | 59 +++++++++++++++++++
 2 files changed, 64 insertions(+)

diff --git a/internal/operation/cloudformation_stack.go b/internal/operation/cloudformation_stack.go
index e533cc18..8cd39e78 100644
--- a/internal/operation/cloudformation_stack.go
+++ b/internal/operation/cloudformation_stack.go
@@ -146,6 +146,11 @@ func (o *CloudFormationStackOperator) ListStacksFilteredByKeyword(ctx context.Co
 	}
 
 	for _, stackSummary := range stackSummaries {
+		// pass the nested child stacks
+		if stackSummary.RootId != nil {
+			continue
+		}
+
 		// for case-insensitive
 		lowerStackName := strings.ToLower(*stackSummary.StackName)
 		lowerKeyword := strings.ToLower(*keyword)
diff --git a/internal/operation/cloudformation_stack_test.go b/internal/operation/cloudformation_stack_test.go
index e353f5b2..077bc7c0 100644
--- a/internal/operation/cloudformation_stack_test.go
+++ b/internal/operation/cloudformation_stack_test.go
@@ -1613,6 +1613,65 @@ func TestCloudFormationStackOperator_ListStacksFilteredByKeyword(t *testing.T) {
 			},
 			wantErr: false,
 		},
+		{
+			name: "list stacks with RootId filtered by keyword successfully",
+			args: args{
+				ctx:     ctx,
+				keyword: "TestStack",
+			},
+			prepareMockCloudFormationFn: func(m *client.MockICloudFormation) {
+				m.EXPECT().ListStacks(gomock.Any()).Return(
+					[]types.StackSummary{
+						{
+							StackName:   aws.String("TestStack1"),
+							StackStatus: types.StackStatusCreateComplete,
+							RootId:      aws.String("test-stack-root"),
+						},
+						{
+							StackName:   aws.String("TestStack2"),
+							StackStatus: types.StackStatusCreateComplete,
+						},
+					},
+					nil,
+				)
+			},
+			want: want{
+				filteredStacks: []string{
+					"TestStack2",
+				},
+				err: nil,
+			},
+			wantErr: false,
+		},
+		{
+			name: "list stacks with RootId filtered by keyword and no stacks do not have RootId found successfully",
+			args: args{
+				ctx:     ctx,
+				keyword: "TestStack",
+			},
+			prepareMockCloudFormationFn: func(m *client.MockICloudFormation) {
+				m.EXPECT().ListStacks(gomock.Any()).Return(
+					[]types.StackSummary{
+						{
+							StackName:   aws.String("TestStack1"),
+							StackStatus: types.StackStatusCreateComplete,
+							RootId:      aws.String("test-stack-root"),
+						},
+						{
+							StackName:   aws.String("TestStack2"),
+							StackStatus: types.StackStatusCreateComplete,
+							RootId:      aws.String("test-stack-root"),
+						},
+					},
+					nil,
+				)
+			},
+			want: want{
+				filteredStacks: []string{},
+				err:            nil,
+			},
+			wantErr: false,
+		},
 		{
 			name: "list stacks filtered by lower keyword successfully",
 			args: args{