micro-config-flag/flag_test.go

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package flag
import (
"context"
"flag"
"os"
"testing"
"time"
"go.unistack.org/micro/v3/config"
)
func TestLoad(t *testing.T) {
time.Local = time.UTC
os.Args = append(os.Args, "-broker", "5566:33")
os.Args = append(os.Args, "-verbose")
os.Args = append(os.Args, "-wait", "5s")
os.Args = append(os.Args, "-addr", "33,44")
os.Args = append(os.Args, "-time", time.RFC822)
os.Args = append(os.Args, "-metadata", "key=20")
os.Args = append(os.Args, "-components", "all=info,api=debug")
os.Args = append(os.Args, "-addr", "33,44")
os.Args = append(os.Args, "-badflag", "test")
type NestedConfig struct {
Value string `flag:"name=nested_value"`
}
type Config struct {
Time time.Time `flag:"name=time,desc='some time',default='02 Jan 06 15:04 MST'"`
Components map[string]string `flag:"name=components,desc='components logging'"`
Metadata map[string]int `flag:"name=metadata,desc='some meta',default=''"`
Nested *NestedConfig
Broker string `flag:"name=broker,desc='description with, comma',default='127.0.0.1:9092'"`
WithoutDesc string `flag:"name=without_desc,default='without_default'"`
WithoutAll string `flag:"name=without_all"`
WithoutDefault string `flag:"name=without_default,desc='with'"`
Addr []string `flag:"name=addr,desc='addrs',default='127.0.0.1:9092'"`
Wait time.Duration `flag:"name=wait,desc='wait time',default='2s'"`
Verbose bool `flag:"name=verbose,desc='verbose output',default='false'"`
}
ctx := context.Background()
cfg := &Config{Nested: &NestedConfig{}}
c := NewConfig(config.Struct(cfg), TimeFormat(time.RFC822), FlagErrorHandling(flag.ContinueOnError))
if err := c.Init(); err != nil {
t.Fatalf("init failed: %v", err)
}
// double init test
if err := c.Init(); err != nil {
t.Fatalf("init failed: %v", err)
}
if err := c.Load(ctx); err != nil {
t.Fatalf("load failed: %v", err)
}
if cfg.Broker != "5566:33" {
t.Fatalf("failed to parse flags broker value invalid: %#+v", cfg)
}
if tf := cfg.Time.Format(time.RFC822); tf != "02 Jan 06 15:04 MST" {
t.Fatalf("parse time error: %s != %s", tf, "02 Jan 06 15:04 MST")
}
if len(cfg.Components) != 2 {
t.Fatalf("cant parse map components %#+v", cfg)
}
}