initial import

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

env_test.go

@@ -0,0 +1,53 @@
+package env_test
+
+import (
+	"github.com/unistack-org/micro/v3/config"
+	env	"github.com/unistack-org/micro-config-env"
+	"testing"
+	"context"
+	"os"
+)
+
+type Config struct {
+	StringValue string `env:"STRING_VALUE"`
+	BoolValue bool `env:"BOOL_VALUE"`
+	StringSlice []string `env:"STRING_SLICE"`
+}
+
+func TestEnv(t *testing.T) {
+	ctx := context.Background()
+	conf := &Config{StringValue: "before_load"}
+	cfg := env.NewConfig(config.Struct(conf))
+
+	if err := cfg.Init(); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := cfg.Load(ctx); err !=nil {
+		t.Fatal(err)
+	}
+
+	if conf.StringValue != "before_load" {
+		t.Fatalf("something wrong with env config: %v", conf)
+	}
+
+
+	os.Setenv("STRING_VALUE","STRING_VALUE")
+	os.Setenv("BOOL_VALUE","true")
+	os.Setenv("STRING_SLICE", "STRING_SLICE1,STRING_SLICE2")
+
+	if err := cfg.Load(ctx); err !=nil {
+		t.Fatal(err)
+	}
+	if conf.StringValue != "STRING_VALUE" {
+		t.Fatalf("something wrong with env config: %v", conf)
+	}
+
+	if !conf.BoolValue {
+		t.Fatalf("something wrong with env config: %v", conf)
+	}
+
+	if len(conf.StringSlice) != 2 {
+		t.Fatalf("something wrong with env config: %v", conf)
+	}
+}