71 lines
1.8 KiB
Go
71 lines
1.8 KiB
Go
package xds
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import (
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"flag"
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"fmt"
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"io/ioutil"
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"path/filepath"
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"testing"
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envoy "github.com/envoyproxy/go-control-plane/envoy/api/v2"
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"github.com/golang/protobuf/jsonpb"
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"github.com/golang/protobuf/proto"
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"github.com/hashicorp/go-version"
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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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// goldenEnvoy is a special variant of golden() that silos each named test by
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// each supported envoy version
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func goldenEnvoy(t *testing.T, name, envoyVersion, got string) string {
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require.NotEmpty(t, envoyVersion)
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// We do version sniffing on the complete version, but only generate
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// golden files ignoring the patch portion
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version := version.Must(version.NewVersion(envoyVersion))
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segments := version.Segments()
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require.Len(t, segments, 3)
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subname := fmt.Sprintf("envoy-%d-%d-x", segments[0], segments[1])
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return golden(t, name, subname, got)
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}
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// golden reads and optionally writes the expected data to the golden file,
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// returning the contents as a string.
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func golden(t *testing.T, name, subname, got string) string {
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t.Helper()
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suffix := ".golden"
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if subname != "" {
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suffix = fmt.Sprintf(".%s.golden", subname)
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}
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golden := filepath.Join("testdata", name+suffix)
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if *update && got != "" {
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err := ioutil.WriteFile(golden, []byte(got), 0644)
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require.NoError(t, err)
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}
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expected, err := ioutil.ReadFile(golden)
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require.NoError(t, err)
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return string(expected)
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}
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func responseToJSON(t *testing.T, r *envoy.DiscoveryResponse) string {
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return protoToJSON(t, r)
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}
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func protoToJSON(t *testing.T, pb proto.Message) string {
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t.Helper()
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m := jsonpb.Marshaler{
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Indent: " ",
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}
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gotJSON, err := m.MarshalToString(pb)
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require.NoError(t, err)
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return gotJSON
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}
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