fix issue1789: when testing, load config explicitly and forcibly

beego.go

@@ -87,5 +87,6 @@ func TestBeegoInit(ap string) {
 	os.Setenv("BEEGO_RUNMODE", "test")
 	appConfigPath = filepath.Join(ap, "conf", "app.conf")
 	os.Chdir(ap)
+	LoadAppConfig(appConfigProvider, appConfigPath)
 	initBeforeHTTPRun()
 }

config.go

@@ -316,10 +316,6 @@ func LoadAppConfig(adapterName, configPath string) error {
 		return fmt.Errorf("the target config file: %s don't exist", configPath)
 	}
 
-	if absConfigPath == appConfigPath {
-		return nil
-	}
-
 	appConfigPath = absConfigPath
 	appConfigProvider = adapterName