mirror of https://github.com/hashicorp/consul
57 lines
1.6 KiB
Go
57 lines
1.6 KiB
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: BUSL-1.1
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package golden
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import (
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"flag"
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"os"
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"path/filepath"
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"testing"
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"github.com/stretchr/testify/require"
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)
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// update allows golden files to be updated based on the current output.
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var update = flag.Bool("update", false, "update golden files")
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// Get reads the expected value from the file at filename and returns the value.
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// filename is relative to the ./testdata directory.
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//
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// If the `-update` flag is used with `go test`, the golden file will be updated
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// to the value of actual.
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func Get(t *testing.T, actual, filename string) string {
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t.Helper()
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return string(GetBytes(t, actual, filename))
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}
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// GetBytes reads the expected value from the file at filename and returns the
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// value as a byte array. filename is relative to the ./testdata directory.
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//
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// If the `-update` flag is used with `go test`, the golden file will be updated
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// to the value of actual.
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func GetBytes(t *testing.T, actual, filename string) []byte {
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t.Helper()
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path := filepath.Join("testdata", filename)
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if *update {
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if dir := filepath.Dir(path); dir != "." {
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require.NoError(t, os.MkdirAll(dir, 0755))
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}
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err := os.WriteFile(path, []byte(actual), 0644)
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require.NoError(t, err)
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}
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return GetBytesAtFilePath(t, path)
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}
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// GetBytes reads the expected value from the file at filepath and returns the
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// value as a byte array. filepath is relative to the ./testdata directory.
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func GetBytesAtFilePath(t *testing.T, filepath string) []byte {
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t.Helper()
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expected, err := os.ReadFile(filepath)
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require.NoError(t, err)
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return expected
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}
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