diff --git a/pkg/engine/runtime/terraform/terraform_runtime_test.go b/pkg/engine/runtime/terraform/terraform_runtime_test.go
index 81e7370b..d31f0e16 100644
--- a/pkg/engine/runtime/terraform/terraform_runtime_test.go
+++ b/pkg/engine/runtime/terraform/terraform_runtime_test.go
@@ -2,11 +2,14 @@ package terraform
 
 import (
 	"context"
+	"encoding/json"
+	"fmt"
 	"os"
 	"path/filepath"
 	"sync"
 	"testing"
 
+	"bou.ke/monkey"
 	"github.com/spf13/afero"
 	"github.com/stretchr/testify/assert"
 
@@ -29,6 +32,12 @@ var testResource = models.Resource{
 	},
 }
 
+var fakeSR = &tfops.StateRepresentation{
+	FormatVersion:    "0.2",
+	TerraformVersion: "1.0.6",
+	Values:           nil,
+}
+
 func TestTerraformRuntime(t *testing.T) {
 	cwd, _ := os.Getwd()
 	stack := &projectstack.Stack{
@@ -42,21 +51,69 @@ func TestTerraformRuntime(t *testing.T) {
 	}
 
 	t.Run("ApplyDryRun", func(t *testing.T) {
+		defer monkey.UnpatchAll()
+
+		mockApplySetup()
+
+		data, err := os.ReadFile(filepath.Join("tfops", "test_data", "plan.out.json"))
+		if err != nil {
+			panic(err)
+		}
+		monkey.Patch((*tfops.WorkSpace).Plan, func(ws *tfops.WorkSpace, ctx context.Context) (*tfops.PlanRepresentation, error) {
+			s := &tfops.PlanRepresentation{}
+			if err = json.Unmarshal(data, s); err != nil {
+				return nil, fmt.Errorf("json umarshal plan representation failed: %v", err)
+			}
+			return s, nil
+		})
+
 		response := tfRuntime.Apply(context.TODO(), &runtime.ApplyRequest{PlanResource: &testResource, DryRun: true, Stack: stack})
 		assert.Equalf(t, nil, response.Status, "Execute(%v)", "Apply")
 	})
 	t.Run("Apply", func(t *testing.T) {
+		defer monkey.UnpatchAll()
+
+		mockApplySetup()
+
 		response := tfRuntime.Apply(context.TODO(), &runtime.ApplyRequest{PlanResource: &testResource, DryRun: false, Stack: stack})
 		assert.Equalf(t, nil, response.Status, "Execute(%v)", "Apply")
 	})
 
 	t.Run("Read", func(t *testing.T) {
+		defer monkey.UnpatchAll()
+
+		monkey.Patch((*tfops.WorkSpace).InitWorkSpace, func(ws *tfops.WorkSpace, ctx context.Context) error {
+			return nil
+		})
+
 		response := tfRuntime.Read(context.TODO(), &runtime.ReadRequest{PlanResource: &testResource, Stack: stack})
 		assert.Equalf(t, nil, response.Status, "Execute(%v)", "Read")
 	})
 
 	t.Run("Delete", func(t *testing.T) {
+		defer monkey.UnpatchAll()
+
+		monkey.Patch((*tfops.WorkSpace).InitWorkSpace, func(ws *tfops.WorkSpace, ctx context.Context) error {
+			return nil
+		})
+		// mock destroy
+		monkey.Patch((*tfops.WorkSpace).Destroy, func(ws *tfops.WorkSpace, ctx context.Context) error {
+			return nil
+		})
+
 		response := tfRuntime.Delete(context.TODO(), &runtime.DeleteRequest{Resource: &testResource, Stack: stack})
 		assert.Equalf(t, nil, response.Status, "Execute(%v)", "Delete")
 	})
 }
+
+func mockApplySetup() {
+	monkey.Patch((*tfops.WorkSpace).InitWorkSpace, func(ws *tfops.WorkSpace, ctx context.Context) error {
+		return nil
+	})
+	monkey.Patch((*tfops.WorkSpace).Apply, func(ws *tfops.WorkSpace, ctx context.Context) (*tfops.StateRepresentation, error) {
+		return fakeSR, nil
+	})
+	monkey.Patch((*tfops.WorkSpace).GetProvider, func(ws *tfops.WorkSpace) (string, error) {
+		return "registry.terraform.io/hashicorp/local/2.2.3", nil
+	})
+}
diff --git a/pkg/engine/runtime/terraform/tfops/workspace_test.go b/pkg/engine/runtime/terraform/tfops/workspace_test.go
index 3965acd2..f4f916ac 100644
--- a/pkg/engine/runtime/terraform/tfops/workspace_test.go
+++ b/pkg/engine/runtime/terraform/tfops/workspace_test.go
@@ -48,7 +48,7 @@ func TestWriteHCL(t *testing.T) {
 	}
 
 	type want struct {
-		maintf string
+		mainTF string
 	}
 
 	cases := map[string]struct {
@@ -60,7 +60,7 @@ func TestWriteHCL(t *testing.T) {
 				w: NewWorkSpace(fs),
 			},
 			want: want{
-				maintf: "{\n  \"provider\": {\n    \"local\": null\n  },\n  \"resource\": {\n    \"local_file\": {\n      \"kusion_example\": {\n        \"content\": \"kusion\",\n        \"filename\": \"test.txt\"\n      }\n    }\n  },\n  \"terraform\": {\n    \"required_providers\": {\n      \"local\": {\n        \"source\": \"registry.terraform.io/hashicorp/local\",\n        \"version\": \"2.2.3\"\n      }\n    }\n  }\n}",
+				mainTF: "{\n  \"provider\": {\n    \"local\": null\n  },\n  \"resource\": {\n    \"local_file\": {\n      \"kusion_example\": {\n        \"content\": \"kusion\",\n        \"filename\": \"test.txt\"\n      }\n    }\n  },\n  \"terraform\": {\n    \"required_providers\": {\n      \"local\": {\n        \"source\": \"registry.terraform.io/hashicorp/local\",\n        \"version\": \"2.2.3\"\n      }\n    }\n  }\n}",
 			},
 		},
 	}
@@ -74,8 +74,8 @@ func TestWriteHCL(t *testing.T) {
 			}
 
 			s, _ := fs.ReadFile(filepath.Join(tt.w.tfCacheDir, "main.tf.json"))
-			if diff := cmp.Diff(string(s), tt.want.maintf); diff != "" {
-				t.Errorf("\n%s\nWriteHCL(...): -want maintf, +got maintf:\n%s", name, diff)
+			if diff := cmp.Diff(string(s), tt.want.mainTF); diff != "" {
+				t.Errorf("\n%s\nWriteHCL(...): -want mainTF, +got mainTF:\n%s", name, diff)
 			}
 		})
 	}