mirror of
https://github.com/rclone/rclone
synced 2024-10-18 04:15:01 +02:00
113 lines
3.8 KiB
Go
113 lines
3.8 KiB
Go
// Extra operations tests (xtra_operations_test.go).
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//
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// This group contains tests, which involve streaming uploads.
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// Currently they are TestRcat and TestRcatSize, which directly
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// or implicitly invoke ioutil.NopCloser().
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// Indeterminate upload size triggers multi-upload in few backends.
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//
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// The S3 backend additionally triggers extra large upload buffers.
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// Namely, multiupload track in the Object.upload() method of S3
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// backend (rclone/backends/s3.go) selects PartSize about 512M,
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// upload.init() of AWS SDK (vendor/.../s3/s3manager/upload.go)
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// allocates upload.bufferPool of that size for each concurrent
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// upload goroutine. Given default concurrency of 4, this results
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// in 2G buffers persisting until the test executable ends.
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//
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// As the rclone test suite parallelizes test runs, this may
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// create memory pressure on a test box and trigger kernel swap,
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// which extremely slows down the test and makes probability
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// of memory contention between test processes even higher.
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//
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// Since name of this source file deliberately starts with `x`,
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// its tests will run lattermost isolating high memory at the
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// very end to somewhat reduce the contention probability.
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//
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package operations_test
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import (
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"context"
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"io/ioutil"
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"strings"
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"testing"
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"github.com/rclone/rclone/fs"
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"github.com/rclone/rclone/fs/operations"
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"github.com/rclone/rclone/fstest"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func TestRcat(t *testing.T) {
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checkSumBefore := fs.Config.CheckSum
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defer func() { fs.Config.CheckSum = checkSumBefore }()
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check := func(withChecksum bool) {
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fs.Config.CheckSum = withChecksum
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prefix := "no_checksum_"
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if withChecksum {
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prefix = "with_checksum_"
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}
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r := fstest.NewRun(t)
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defer r.Finalise()
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if *fstest.SizeLimit > 0 && int64(fs.Config.StreamingUploadCutoff) > *fstest.SizeLimit {
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savedCutoff := fs.Config.StreamingUploadCutoff
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defer func() {
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fs.Config.StreamingUploadCutoff = savedCutoff
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}()
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fs.Config.StreamingUploadCutoff = fs.SizeSuffix(*fstest.SizeLimit)
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t.Logf("Adjust StreamingUploadCutoff to size limit %s (was %s)", fs.Config.StreamingUploadCutoff, savedCutoff)
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}
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fstest.CheckListing(t, r.Fremote, []fstest.Item{})
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data1 := "this is some really nice test data"
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path1 := prefix + "small_file_from_pipe"
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data2 := string(make([]byte, fs.Config.StreamingUploadCutoff+1))
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path2 := prefix + "big_file_from_pipe"
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in := ioutil.NopCloser(strings.NewReader(data1))
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_, err := operations.Rcat(context.Background(), r.Fremote, path1, in, t1)
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require.NoError(t, err)
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in = ioutil.NopCloser(strings.NewReader(data2))
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_, err = operations.Rcat(context.Background(), r.Fremote, path2, in, t2)
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require.NoError(t, err)
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file1 := fstest.NewItem(path1, data1, t1)
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file2 := fstest.NewItem(path2, data2, t2)
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fstest.CheckItems(t, r.Fremote, file1, file2)
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}
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check(true)
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check(false)
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}
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func TestRcatSize(t *testing.T) {
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r := fstest.NewRun(t)
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defer r.Finalise()
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const body = "------------------------------------------------------------"
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file1 := r.WriteFile("potato1", body, t1)
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file2 := r.WriteFile("potato2", body, t2)
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// Test with known length
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bodyReader := ioutil.NopCloser(strings.NewReader(body))
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obj, err := operations.RcatSize(context.Background(), r.Fremote, file1.Path, bodyReader, int64(len(body)), file1.ModTime)
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require.NoError(t, err)
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assert.Equal(t, int64(len(body)), obj.Size())
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assert.Equal(t, file1.Path, obj.Remote())
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// Test with unknown length
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bodyReader = ioutil.NopCloser(strings.NewReader(body)) // reset Reader
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ioutil.NopCloser(strings.NewReader(body))
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obj, err = operations.RcatSize(context.Background(), r.Fremote, file2.Path, bodyReader, -1, file2.ModTime)
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require.NoError(t, err)
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assert.Equal(t, int64(len(body)), obj.Size())
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assert.Equal(t, file2.Path, obj.Remote())
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// Check files exist
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fstest.CheckItems(t, r.Fremote, file1, file2)
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}
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