Function TestSyncBasedOnCheckSum

fs/sync/sync_test.go:772–805

Create a file and sync it. Change the last modified date and resync. If we're only doing sync by size and checksum, we expect nothing to to be transferred on the second sync.

(t *testing.T)

// If we're only doing sync by size and checksum, we expect nothing to
// to be transferred on the second sync.
func TestSyncBasedOnCheckSum(t *testing.T) {
	ctx := context.Background()
	ctx, ci := fs.AddConfig(ctx)
	r := fstest.NewRun(t)
	ci.CheckSum = true

	file1 := r.WriteFile("check sum", "-", t1)
	r.CheckLocalItems(t, file1)

	accounting.GlobalStats().ResetCounters()
	ctx = predictDstFromLogger(ctx)
	err := Sync(ctx, r.Fremote, r.Flocal, false)
	require.NoError(t, err)
	testLoggerVsLsf(ctx, r.Fremote, r.Flocal, operations.GetLoggerOpt(ctx).JSON, t)

	// We should have transferred exactly one file.
	assert.Equal(t, toyFileTransfers(r), accounting.GlobalStats().GetTransfers())
	r.CheckRemoteItems(t, file1)

	// Change last modified date only
	file2 := r.WriteFile("check sum", "-", t2)
	r.CheckLocalItems(t, file2)

	accounting.GlobalStats().ResetCounters()
	ctx = predictDstFromLogger(ctx)
	err = Sync(ctx, r.Fremote, r.Flocal, false)
	require.NoError(t, err)
	testLoggerVsLsf(ctx, r.Fremote, r.Flocal, operations.GetLoggerOpt(ctx).JSON, t)

	// We should have transferred no files
	assert.Equal(t, int64(0), accounting.GlobalStats().GetTransfers())
	r.CheckLocalItems(t, file2)
	r.CheckRemoteItems(t, file1)
}

// Create a file and sync it. Change the last modified date and the
// file contents but not the size.  If we're only doing sync by size