目錄
- 問題描述
- 網上的討論
- 最終的解決辦法
問題描述
對於如下這樣簡單的測試檔案:
package main
// Basic imports
import (
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/suite"
)
var assertObj *assert.Assertions
// Define the suite, and absorb the built-in basic suite
// functionality from testify - including a T() method which
// returns the current testing context
type ExampleTestSuite struct {
suite.Suite
VariableThatShouldStartAtFive int
}
// Make sure that VariableThatShouldStartAtFive is set to five
// before each test
func (suite *ExampleTestSuite) SetupTest() {
suite.VariableThatShouldStartAtFive = 5
assertObj = assert.New(suite.T())
}
// All methods that begin with "Test" are run as tests within a
// suite.
func (suite *ExampleTestSuite) TestExample() {
assertObj.Equal(5, suite.VariableThatShouldStartAtFive)
suite.Equal(5, suite.VariableThatShouldStartAtFive)
}
func (suite *ExampleTestSuite) TestExample2() {
assertObj.NotEqual(51, suite.VariableThatShouldStartAtFive)
}
// In order for 'go test' to run this suite, we need to create
// a normal test function and pass our suite to suite.Run
func TestExampleTestSuite(t *testing.T) {
suite.Run(t, new(ExampleTestSuite))
}
點選 TestSuite 的某一個 Test* 方法上的 debug test
,就會只除錯這單個 test,這是符合預期的。
但是在一個複雜專案中,如果 TestSuite 物件的 Test*
方法分佈於多個 *_test.go
檔案中,這時想要單獨執行某一個 Test*
,就會出現 testing: warning: no tests to run
這樣的錯誤提示:
網上的討論
2022 年 4 月,github 上就有同樣問題的討論:
cannot debug single test in VS Code #1177
Failure to debug a suite test that is in a different file than the caller test #2414
一個回答是在 vscode 中使用 Go Nightly
外掛來代替 Go
外掛,收貨 4 個點贊,看樣子是可行的。
但是實際測試發現還是不行,替換外掛後,重啟了 vscode,依然不行。
最終的解決辦法
參考這個回答:
在 .vscode/launch.json
中進行如下配置:
{
// Use IntelliSense to learn about possible attributes.
// Hover to view descriptions of existing attributes.
// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
"version": "0.2.0",
"configurations": [
{
"name": "Debug TestMethodOne",
"type": "go",
"request": "launch",
"mode": "test",
"program": "${workspaceFolder}/pkg/service/service_test.go",
"args": ["-test.run", "MyTestSuite/TestMethodOne"],
},
{
"name": "Debug TestMethodTwo",
"type": "go",
"request": "launch",
"mode": "test",
"program": "${workspaceFolder}/pkg/service/service_test.go",
"args": ["-test.run", "MyTestSuite/TestMethodTwo"],
}
]
}
然後就可以在 vscode 的 Debug 頁面中成功除錯單個 test 例項了