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diff: add basic test for json output format

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This commit is contained in:
Michael Eischer 2022-02-05 23:26:31 +01:00 committed by David Vogt
parent 5f34ad523f
commit 74f29ad09b
1 changed files with 60 additions and 3 deletions
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63
cmd/restic/integration_test.go
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@ -159,8 +159,11 @@ func testRunDiffOutput(gopts GlobalOptions, firstSnapshotID string, secondSnapsh
buf := bytes.NewBuffer(nil)
globalOptions.stdout = buf
oldStdout := gopts.stdout
gopts.stdout = buf
defer func() {
globalOptions.stdout = os.Stdout
gopts.stdout = oldStdout
}()
opts := DiffOptions{
@ -1972,10 +1975,8 @@ var diffOutputRegexPatterns = []string{
"Removed: +2[0-9]{2}\\.[0-9]{3} KiB",
}
func TestDiff(t *testing.T) {
func setupDiffRepo(t *testing.T) (*testEnvironment, func(), string, string) {
env, cleanup := withTestEnvironment(t)
defer cleanup()
testRunInit(t, env.gopts)
datadir := filepath.Join(env.base, "testdata")
@ -2011,6 +2012,13 @@ func TestDiff(t *testing.T) {
testRunBackup(t, "", []string{datadir}, opts, env.gopts)
_, secondSnapshotID := lastSnapshot(snapshots, loadSnapshotMap(t, env.gopts))
return env, cleanup, firstSnapshotID, secondSnapshotID
}
func TestDiff(t *testing.T) {
env, cleanup, firstSnapshotID, secondSnapshotID := setupDiffRepo(t)
defer cleanup()
// quiet suppresses the diff output except for the summary
env.gopts.Quiet = false
_, err := testRunDiffOutput(env.gopts, "", secondSnapshotID)
@ -2033,6 +2041,55 @@ func TestDiff(t *testing.T) {
rtest.Assert(t, len(outQuiet) < len(out), "expected shorter output on quiet mode %v vs. %v", len(outQuiet), len(out))
}
type typeSniffer struct {
MessageType string `json:"message_type"`
}
func TestDiffJSON(t *testing.T) {
env, cleanup, firstSnapshotID, secondSnapshotID := setupDiffRepo(t)
defer cleanup()
// quiet suppresses the diff output except for the summary
env.gopts.Quiet = false
env.gopts.JSON = true
out, err := testRunDiffOutput(env.gopts, firstSnapshotID, secondSnapshotID)
rtest.OK(t, err)
var stat DiffStatsContainer
var changes int
scanner := bufio.NewScanner(strings.NewReader(out))
for scanner.Scan() {
line := scanner.Text()
var sniffer typeSniffer
rtest.OK(t, json.Unmarshal([]byte(line), &sniffer))
switch sniffer.MessageType {
case "change":
changes++
case "statistics":
rtest.OK(t, json.Unmarshal([]byte(line), &stat))
default:
t.Fatalf("unexpected message type %v", sniffer.MessageType)
}
}
rtest.Equals(t, 9, changes)
rtest.Assert(t, stat.Added.Files == 2 && stat.Added.Dirs == 3 && stat.Added.DataBlobs == 2 &&
stat.Removed.Files == 1 && stat.Removed.Dirs == 2 && stat.Removed.DataBlobs == 1 &&
stat.ChangedFiles == 1, "unexpected statistics")
// check quiet output
env.gopts.Quiet = true
outQuiet, err := testRunDiffOutput(env.gopts, firstSnapshotID, secondSnapshotID)
rtest.OK(t, err)
stat = DiffStatsContainer{}
rtest.OK(t, json.Unmarshal([]byte(outQuiet), &stat))
rtest.Assert(t, stat.Added.Files == 2 && stat.Added.Dirs == 3 && stat.Added.DataBlobs == 2 &&
stat.Removed.Files == 1 && stat.Removed.Dirs == 2 && stat.Removed.DataBlobs == 1 &&
stat.ChangedFiles == 1, "unexpected statistics")
rtest.Assert(t, stat.SourceSnapshot == firstSnapshotID && stat.TargetSnapshot == secondSnapshotID, "unexpected snapshot ids")
}
type writeToOnly struct {
rd io.Reader
}