test/config_test.go - master - cloudservices/common

test/config_test.go
70 строк2 KB
Ivan
init
26 июл 2026, 11:34
26 июл 2026, 11:3446b4481
package common_test

import (
	"os"
	"path/filepath"
	"testing"

	common "gitverse.ru/cloudservices/common"
)

type testConfig struct {
	Name   string     `yaml:"name"`
	Nested testNested `yaml:"nested"`
	Items  []string   `yaml:"items"`
}

type testNested struct {
	URL string `yaml:"url"`
}

func TestLoadConfigExpandsEnvironmentVariables(t *testing.T) {
	t.Setenv("COMMON_TEST_NAME", "service")
	t.Setenv("COMMON_TEST_URL", "https://example.test")
	t.Setenv("COMMON_TEST_ITEM", "item-value")

	path := filepath.Join(t.TempDir(), "config.yaml")
	data := "name: ${COMMON_TEST_NAME}\nnested:\n  url: $COMMON_TEST_URL\nitems:\n  - first\n  - ${COMMON_TEST_ITEM}\n"
	if err := os.WriteFile(path, []byte(data), 0o600); err != nil {
		t.Fatal(err)
	}

	var got testConfig
	if err := common.LoadConfig(path, &got); err != nil {
		t.Fatalf("LoadConfig() error = %v", err)
	}

	want := testConfig{Name: "service", Nested: testNested{URL: "https://example.test"}, Items: []string{"first", "item-value"}}
	if got.Name != want.Name || got.Nested.URL != want.Nested.URL || len(got.Items) != len(want.Items) || got.Items[1] != want.Items[1] {
		t.Errorf("LoadConfig() = %#v, want %#v", got, want)
	}
}

func TestLoadConfigLoadsRelativeEnvFile(t *testing.T) {
	dir := t.TempDir()
	if err := os.WriteFile(filepath.Join(dir, ".env"), []byte("COMMON_TEST_FROM_FILE=loaded\n"), 0o600); err != nil {
		t.Fatal(err)
	}
	t.Setenv("COMMON_TEST_FROM_FILE", "")
	os.Unsetenv("COMMON_TEST_FROM_FILE")

	path := filepath.Join(dir, "config.yaml")
	if err := os.WriteFile(path, []byte("env_file: .env\nname: $COMMON_TEST_FROM_FILE\n"), 0o600); err != nil {
		t.Fatal(err)
	}

	var got testConfig
	if err := common.LoadConfig(path, &got); err != nil {
		t.Fatalf("LoadConfig() error = %v", err)
	}
	if got.Name != "loaded" {
		t.Errorf("name = %q, want %q", got.Name, "loaded")
	}
}

func TestLoadConfigMissingFile(t *testing.T) {
	var got testConfig
	if err := common.LoadConfig(filepath.Join(t.TempDir(), "missing.yaml"), &got); err == nil {
		t.Fatal("LoadConfig() error = nil, want an error")
	}
}