micro/config/default_test.go

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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"`
IgnoreValue string `json:"-"`
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)
}
if err := cfg.Load(ctx); err != nil {
t.Fatal(err)
}
if conf.StringValue != "after_load" {
t.Fatal("AfterLoad option not working")
}
t.Logf("%#+v\n", conf)
}