Add tests

Author: haoxins

result_set_test.go

@@ -835,6 +835,102 @@ func TestScan(t *testing.T) {
 	assert.Equal(t, true, testStructList[1].Col3)
 }
 
+func TestScanWithNestStruct(t *testing.T) {
+	resp := &graph.ExecutionResponse{
+		ErrorCode:   nebula.ErrorCode_SUCCEEDED,
+		LatencyInUs: 1000,
+		Data:        getNestDateset(),
+		SpaceName:   []byte("test_space"),
+		ErrorMsg:    []byte("test"),
+		PlanDesc:    graph.NewPlanDescription(),
+		Comment:     []byte("test_comment")}
+	resultSet, err := genResultSet(resp, testTimezone)
+	if err != nil {
+		t.Error(err)
+	}
+
+	type Person struct {
+		Name string `nebula:"name"`
+		City string `nebula:"city"`
+	}
+	type Friend struct {
+		CreatedAt string `nebula:"created_at"`
+	}
+	type Result struct {
+		Nodes []Person `nebula:"nodes"`
+		Edges []Friend `nebula:"relationships"`
+	}
+
+	var results []Result
+	err = resultSet.Scan(&results)
+	if err != nil {
+		t.Error(err)
+	}
+	assert.Equal(t, 1, len(results))
+	assert.Equal(t, "Tom", results[0].Nodes[0].Name)
+	assert.Equal(t, "Shanghai", results[0].Nodes[0].City)
+	assert.Equal(t, "Bob", results[0].Nodes[1].Name)
+	assert.Equal(t, "Hangzhou", results[0].Nodes[1].City)
+	assert.Equal(t, "2024-07-07", results[0].Edges[0].CreatedAt)
+	assert.Equal(t, "2024-07-07", results[0].Edges[1].CreatedAt)
+
+	// Scan again should work
+	err = resultSet.Scan(&results)
+	if err != nil {
+		t.Error(err)
+	}
+	assert.Equal(t, 2, len(results))
+}
+
+func TestScanWithNestStructPtr(t *testing.T) {
+	resp := &graph.ExecutionResponse{
+		ErrorCode:   nebula.ErrorCode_SUCCEEDED,
+		LatencyInUs: 1000,
+		Data:        getNestDateset(),
+		SpaceName:   []byte("test_space"),
+		ErrorMsg:    []byte("test"),
+		PlanDesc:    graph.NewPlanDescription(),
+		Comment:     []byte("test_comment")}
+	resultSet, err := genResultSet(resp, testTimezone)
+	if err != nil {
+		t.Error(err)
+	}
+
+	type Person struct {
+		Name string `nebula:"name"`
+		City string `nebula:"city"`
+	}
+	type Friend struct {
+		CreatedAt string `nebula:"created_at"`
+	}
+	type Result struct {
+		Nodes []*Person `nebula:"nodes"`
+		Edges []*Friend `nebula:"relationships"`
+	}
+
+	// TODO: actually, the `results` should be []*Result,
+	// we still need to support this case
+	var results []Result
+	err = resultSet.Scan(&results)
+	if err != nil {
+		t.Error(err)
+	}
+	assert.Equal(t, 1, len(results))
+	assert.Equal(t, "Tom", results[0].Nodes[0].Name)
+	assert.Equal(t, "Shanghai", results[0].Nodes[0].City)
+	assert.Equal(t, "Bob", results[0].Nodes[1].Name)
+	assert.Equal(t, "Hangzhou", results[0].Nodes[1].City)
+	assert.Equal(t, "2024-07-07", results[0].Edges[0].CreatedAt)
+	assert.Equal(t, "2024-07-07", results[0].Edges[1].CreatedAt)
+
+	// Scan again should work
+	err = resultSet.Scan(&results)
+	if err != nil {
+		t.Error(err)
+	}
+	assert.Equal(t, 2, len(results))
+}
+
 func TestIntVid(t *testing.T) {
 	vertex := getVertexInt(101, 3, 5)
 	node, err := genNode(vertex, testTimezone)
@@ -1032,6 +1128,83 @@ func getDateset2() *nebula.DataSet {
 	}
 }
 
+func getNestDateset() *nebula.DataSet {
+	colNames := [][]byte{
+		[]byte("nodes"),
+		[]byte("relationships"),
+	}
+	var list1 = nebula.NewValue()
+	list1.SetLVal(&nebula.NList{
+		Values: []*nebula.Value{
+			{
+				VVal: &nebula.Vertex{
+					Vid: &nebula.Value{SVal: []byte("person_id_0")},
+					Tags: []*nebula.Tag{
+						{
+							Name: []byte("person"),
+							Props: map[string]*nebula.Value{
+								"name": {SVal: []byte("Tom")},
+								"city": {SVal: []byte("Shanghai")},
+							},
+						},
+					},
+				},
+			},
+			{
+				VVal: &nebula.Vertex{
+					Vid: &nebula.Value{SVal: []byte("person_id_1")},
+					Tags: []*nebula.Tag{
+						{
+							Name: []byte("person"),
+							Props: map[string]*nebula.Value{
+								"name": {SVal: []byte("Bob")},
+								"city": {SVal: []byte("Hangzhou")},
+							},
+						},
+					},
+				},
+			},
+		},
+	})
+
+	var list2 = nebula.NewValue()
+	list2.SetLVal(&nebula.NList{
+		Values: []*nebula.Value{
+			{
+				EVal: &nebula.Edge{
+					Src:  &nebula.Value{SVal: []byte("person_id_0")},
+					Dst:  &nebula.Value{SVal: []byte("person_id_1")},
+					Name: []byte("friend"),
+					Props: map[string]*nebula.Value{
+						"created_at": {SVal: []byte("2024-07-07")},
+					},
+				},
+			},
+			{
+				EVal: &nebula.Edge{
+					Src:  &nebula.Value{SVal: []byte("person_id_1")},
+					Dst:  &nebula.Value{SVal: []byte("person_id_0")},
+					Name: []byte("friend"),
+					Props: map[string]*nebula.Value{
+						"created_at": {SVal: []byte("2024-07-07")},
+					},
+				},
+			},
+		},
+	})
+
+	valueList := []*nebula.Value{list1, list2}
+	var rows []*nebula.Row
+	row := &nebula.Row{
+		Values: valueList,
+	}
+	rows = append(rows, row)
+	return &nebula.DataSet{
+		ColumnNames: colNames,
+		Rows:        rows,
+	}
+}
+
 func setIVal(ival int) *nebula.Value {
 	var value = nebula.NewValue()
 	newNum := new(int64)