Files
pocket-id/backend/internal/common/env_file_test.go
T

94 lines
2.5 KiB
Go

package common
import (
"os"
"path/filepath"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestLoadEnvVarFromFile(t *testing.T) {
t.Run("returns false when the file env var is not set", func(t *testing.T) {
value, ok, err := LoadEnvVarFromFile("TEST_SECRET")
require.NoError(t, err)
assert.False(t, ok)
assert.Empty(t, value)
})
t.Run("returns the content of the file as-is", func(t *testing.T) {
fileName := writeTempFile(t, "secret.txt", " my-secret\n")
t.Setenv("TEST_SECRET_FILE", fileName)
value, ok, err := LoadEnvVarFromFile("TEST_SECRET")
require.NoError(t, err)
assert.True(t, ok)
assert.Equal(t, []byte(" my-secret\n"), value)
})
t.Run("returns an error when the file cannot be read", func(t *testing.T) {
t.Setenv("TEST_SECRET_FILE", filepath.Join(t.TempDir(), "does-not-exist.txt"))
_, ok, err := LoadEnvVarFromFile("TEST_SECRET")
require.Error(t, err)
require.ErrorContains(t, err, "TEST_SECRET_FILE")
assert.False(t, ok)
})
}
func TestLoadStringEnvVarFromFile(t *testing.T) {
t.Run("returns false when the file env var is not set", func(t *testing.T) {
value, ok, err := LoadStringEnvVarFromFile("TEST_SECRET")
require.NoError(t, err)
assert.False(t, ok)
assert.Empty(t, value)
})
t.Run("trims leading and trailing whitespace", func(t *testing.T) {
fileName := writeTempFile(t, "secret.txt", "\tmy-secret \r\n")
t.Setenv("TEST_SECRET_FILE", fileName)
value, ok, err := LoadStringEnvVarFromFile("TEST_SECRET")
require.NoError(t, err)
assert.True(t, ok)
assert.Equal(t, "my-secret", value)
})
t.Run("returns an empty value when the file is empty", func(t *testing.T) {
fileName := writeTempFile(t, "empty.txt", "\n")
t.Setenv("TEST_SECRET_FILE", fileName)
value, ok, err := LoadStringEnvVarFromFile("TEST_SECRET")
require.NoError(t, err)
assert.True(t, ok)
assert.Empty(t, value)
})
t.Run("returns an error when the file cannot be read", func(t *testing.T) {
t.Setenv("TEST_SECRET_FILE", filepath.Join(t.TempDir(), "does-not-exist.txt"))
_, ok, err := LoadStringEnvVarFromFile("TEST_SECRET")
require.Error(t, err)
assert.False(t, ok)
})
}
// writeTempFile writes content to a file in a temporary directory that is removed when the test ends, returning its path
func writeTempFile(t *testing.T, name string, content string) string {
t.Helper()
fileName := filepath.Join(t.TempDir(), name)
err := os.WriteFile(fileName, []byte(content), 0600)
require.NoError(t, err)
return fileName
}