我正在寫一個(gè)小的 POC 去上班，但我似乎無法弄清楚模擬技術(shù)。這是我到目前為止...連接.gopackage dbimport ( "database/sql" "encoding/json" "fmt" "io/ioutil" "strings" _ "github.com/lib/pq")type config map[string]interface{}type DbConn struct { db db}type db interface { getConnectionStringFromConfig(file string) (connStr string, err error)}func NewDbConn(d db) *DbConn { return &DbConn{db: d}}func getConnectionStringFromConfig(file string) (connStr string, err error) { var c config var bt []byte if bt, err = ioutil.ReadFile(file); err != nil { fmt.Printf("Error Reading config file: %v", err) return } fmt.Println("Finish reading file. Going to construct a connection string") if err = json.Unmarshal(bt, &c); err != nil { fmt.Printf("Error unmarshalling config file: %v", err) return } connStr = strings.TrimLeft(getConfigAsString(c), " ") return}func getConfigAsString(c config) (connStr string) { for k, v := range c { connStr += strings.Join([]string{" " + k, v.(string)}, "=") } return}// Connect database connectionfunc (dbConn DbConn) Connect() (conn *sql.DB, err error) { fmt.Println("Starting database connection...") connStr, err := getConnectionStringFromConfig("path/to/conf.json") if err != nil { return } conn, err = sql.Open("some_driver", connStr) return}連接測(cè)試.gopackage dbimport ( "errors" "testing")type dbConnMock struct { db dbMock}type dbMock interface { getConnectionStringFromConfig(file string) (connStr string, err error)}func (dbm dbConnMock) getConnectionStringFromConfig(file string) (connStr string, err error) { return "", errors.New("123")}// should not throw error when trying to open db connectionfunc TestDatabaseConnection(t *testing.T) { dbCon := &DbConn{} _, err := dbCon.Connect() if err != nil { t.Errorf("test failed. \n %d", err) }}如您所見，這是一個(gè)簡(jiǎn)單的數(shù)據(jù)庫(kù)連接邏輯，我使用接口對(duì)其進(jìn)行了測(cè)試和模擬。我想覆蓋 100% 的代碼，所以我必須模擬某些方法。上面的代碼雖然有效，但第二個(gè)測(cè)試失敗了，可能是因?yàn)槲以趪L試模擬它時(shí)遺漏了一些東西。請(qǐng)幫忙..
模擬 go 方法
30秒到達(dá)戰(zhàn)場(chǎng)
2023-04-04 14:39:23
