micro/config/default_test.go
Vasiliy Tolstov 2dcd30b21c add defaut config parser
Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
2020-12-13 13:17:38 +03:00

71 lines
1.6 KiB
Go

package config_test
import (
"context"
"fmt"
"testing"
"github.com/unistack-org/micro/v3/config"
)
type Cfg struct {
StringValue string `default:"string_value"`
IntValue int `default:"99"`
StructValue struct {
StringValue string `default:"string_value"`
}
}
func TestDefault(t *testing.T) {
ctx := context.Background()
conf := &Cfg{}
blfn := func(ctx context.Context, cfg config.Config) error {
conf, ok := cfg.Options().Struct.(*Cfg)
if !ok {
return fmt.Errorf("failed to get Struct from options: %v", cfg.Options())
}
conf.StringValue = "before_load"
return nil
}
alfn := func(ctx context.Context, cfg config.Config) error {
conf, ok := cfg.Options().Struct.(*Cfg)
if !ok {
return fmt.Errorf("failed to get Struct from options: %v", cfg.Options())
}
conf.StringValue = "after_load"
return nil
}
cfg := config.NewConfig(config.Struct(conf), config.BeforeLoad(blfn), config.AfterLoad(alfn))
if err := cfg.Init(); err != nil {
t.Fatal(err)
}
for _, fn := range cfg.Options().BeforeLoad {
if err := fn(ctx, cfg); err != nil {
t.Fatal(err)
}
}
if conf.StringValue != "before_load" {
t.Fatal("BeforeLoad option not working")
}
if err := cfg.Load(ctx); err != nil {
t.Fatal(err)
}
if conf.StringValue != "string_value" || conf.IntValue != 99 || conf.StructValue.StringValue != "string_value" {
t.Fatalf("load failed: %#+v", conf)
}
for _, fn := range cfg.Options().AfterLoad {
if err := fn(ctx, cfg); err != nil {
t.Fatal(err)
}
}
if conf.StringValue != "after_load" {
t.Fatal("AfterLoad option not working")
}
t.Logf("%#+v\n", conf)
}