feat(goctl): Support gateway sample generation (#3049)

tools/goctl/internal/flags/flags_test.go

@@ -0,0 +1,78 @@
+package flags
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/zeromicro/go-zero/tools/goctl/test"
+)
+
+func TestFlags_Get(t *testing.T) {
+	setTestData(t, []byte(`{"host":"0.0.0.0","port":8888,"service":{"host":"{{.host}}","port":"{{.port}}","invalid":"{{.service.invalid}}"}}`))
+	f := MustLoad()
+	executor := test.NewExecutor[string, string]()
+	executor.Add([]test.Data[string, string]{
+		{
+			Name:  "key_host",
+			Input: "host",
+			Want:  "0.0.0.0",
+		},
+		{
+			Name:  "key_port",
+			Input: "port",
+			Want:  "8888",
+		},
+		{
+			Name:  "key_service.host",
+			Input: "service.host",
+			Want:  "0.0.0.0",
+		},
+		{
+			Name:  "key_service.port",
+			Input: "service.port",
+			Want:  "8888",
+		},
+		{
+			Name:  "key_not_exists",
+			Input: "service.port.invalid",
+		},
+		{
+			Name:  "key_service.invalid",
+			Input: "service.invalid",
+			E:     fmt.Errorf("the variable can not be self: %q", "service.invalid"),
+		},
+	}...)
+	executor.RunE(t, f.Get)
+}
+
+func Test_Get(t *testing.T) {
+	setTestData(t, []byte(`{"host":"0.0.0.0","port":8888,"service":{"host":"{{.host}}","port":"{{.port}}","invalid":"{{.service.invalid}}"}}`))
+	executor := test.NewExecutor[string, string]()
+	executor.Add([]test.Data[string, string]{
+		{
+			Name:  "key_host",
+			Input: "host",
+			Want:  "0.0.0.0",
+		},
+		{
+			Name:  "key_port",
+			Input: "port",
+			Want:  "8888",
+		},
+		{
+			Name:  "key_service.host",
+			Input: "service.host",
+			Want:  "0.0.0.0",
+		},
+		{
+			Name:  "key_service.port",
+			Input: "service.port",
+			Want:  "8888",
+		},
+		{
+			Name:  "key_not_exists",
+			Input: "service.port.invalid",
+		},
+	}...)
+	executor.Run(t, Get)
+}