mirror of
https://github.com/rclone/rclone.git
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6d0063d685
Before this change we checked the transfer was out of range only
before the Read call. This means that we returned all the data to the
reader before declaring an error. This means that some backends wrote
the file even though an error was returned.
This fix checks the transfer after the Read as well, and chops the
excess characters off the read data if we are over the limit so that
we don't ever deliver all the data.
This fixes the tests introduced as part of 6f1766dd9e and #2672
on backends other than local.
282 lines
7.1 KiB
Go
282 lines
7.1 KiB
Go
package accounting
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import (
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"bytes"
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"fmt"
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"io"
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"io/ioutil"
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"strings"
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"testing"
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"unicode/utf8"
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"github.com/rclone/rclone/fs"
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"github.com/rclone/rclone/fs/asyncreader"
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"github.com/rclone/rclone/fs/fserrors"
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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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// Check it satisfies the interfaces
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var (
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_ io.ReadCloser = &Account{}
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_ io.Reader = &accountStream{}
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_ Accounter = &Account{}
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_ Accounter = &accountStream{}
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)
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func TestNewAccountSizeName(t *testing.T) {
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in := ioutil.NopCloser(bytes.NewBuffer([]byte{1}))
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stats := NewStats()
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acc := newAccountSizeName(stats, in, 1, "test")
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assert.Equal(t, in, acc.in)
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assert.Equal(t, acc, stats.inProgress.get("test"))
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err := acc.Close()
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assert.NoError(t, err)
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assert.Equal(t, acc, stats.inProgress.get("test"))
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acc.Done()
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assert.Nil(t, stats.inProgress.get("test"))
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}
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func TestAccountWithBuffer(t *testing.T) {
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in := ioutil.NopCloser(bytes.NewBuffer([]byte{1}))
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stats := NewStats()
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acc := newAccountSizeName(stats, in, -1, "test")
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acc.WithBuffer()
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// should have a buffer for an unknown size
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_, ok := acc.in.(*asyncreader.AsyncReader)
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require.True(t, ok)
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assert.NoError(t, acc.Close())
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acc = newAccountSizeName(stats, in, 1, "test")
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acc.WithBuffer()
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// should not have a buffer for a small size
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_, ok = acc.in.(*asyncreader.AsyncReader)
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require.False(t, ok)
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assert.NoError(t, acc.Close())
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}
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func TestAccountGetUpdateReader(t *testing.T) {
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test := func(doClose bool) func(t *testing.T) {
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return func(t *testing.T) {
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in := ioutil.NopCloser(bytes.NewBuffer([]byte{1}))
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stats := NewStats()
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acc := newAccountSizeName(stats, in, 1, "test")
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assert.Equal(t, in, acc.GetReader())
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assert.Equal(t, acc, stats.inProgress.get("test"))
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if doClose {
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// close the account before swapping it out
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require.NoError(t, acc.Close())
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}
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in2 := ioutil.NopCloser(bytes.NewBuffer([]byte{1}))
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acc.UpdateReader(in2)
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assert.Equal(t, in2, acc.GetReader())
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assert.Equal(t, acc, stats.inProgress.get("test"))
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assert.NoError(t, acc.Close())
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}
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}
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t.Run("NoClose", test(false))
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t.Run("Close", test(true))
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}
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func TestAccountRead(t *testing.T) {
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in := ioutil.NopCloser(bytes.NewBuffer([]byte{1, 2, 3}))
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stats := NewStats()
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acc := newAccountSizeName(stats, in, 1, "test")
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assert.True(t, acc.start.IsZero())
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assert.Equal(t, 0, acc.lpBytes)
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assert.Equal(t, int64(0), acc.bytes)
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assert.Equal(t, int64(0), stats.bytes)
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var buf = make([]byte, 2)
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n, err := acc.Read(buf)
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assert.NoError(t, err)
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assert.Equal(t, 2, n)
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assert.Equal(t, []byte{1, 2}, buf[:n])
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assert.False(t, acc.start.IsZero())
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assert.Equal(t, 2, acc.lpBytes)
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assert.Equal(t, int64(2), acc.bytes)
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assert.Equal(t, int64(2), stats.bytes)
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n, err = acc.Read(buf)
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assert.NoError(t, err)
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assert.Equal(t, 1, n)
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assert.Equal(t, []byte{3}, buf[:n])
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n, err = acc.Read(buf)
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assert.Equal(t, io.EOF, err)
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assert.Equal(t, 0, n)
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assert.NoError(t, acc.Close())
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}
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func TestAccountString(t *testing.T) {
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in := ioutil.NopCloser(bytes.NewBuffer([]byte{1, 2, 3}))
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stats := NewStats()
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acc := newAccountSizeName(stats, in, 3, "test")
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// FIXME not an exhaustive test!
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assert.Equal(t, "test: 0% /3, 0/s, -", strings.TrimSpace(acc.String()))
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var buf = make([]byte, 2)
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n, err := acc.Read(buf)
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assert.NoError(t, err)
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assert.Equal(t, 2, n)
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assert.Equal(t, "test: 66% /3, 0/s, -", strings.TrimSpace(acc.String()))
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assert.NoError(t, acc.Close())
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}
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// Test the Accounter interface methods on Account and accountStream
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func TestAccountAccounter(t *testing.T) {
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in := ioutil.NopCloser(bytes.NewBuffer([]byte{1, 2, 3}))
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stats := NewStats()
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acc := newAccountSizeName(stats, in, 3, "test")
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assert.True(t, in == acc.OldStream())
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in2 := ioutil.NopCloser(bytes.NewBuffer([]byte{2, 3, 4}))
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acc.SetStream(in2)
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assert.True(t, in2 == acc.OldStream())
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r := acc.WrapStream(in)
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as, ok := r.(Accounter)
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require.True(t, ok)
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assert.True(t, in == as.OldStream())
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assert.True(t, in2 == acc.OldStream())
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accs, ok := r.(*accountStream)
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require.True(t, ok)
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assert.Equal(t, acc, accs.acc)
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assert.True(t, in == accs.in)
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// Check Read on the accountStream
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var buf = make([]byte, 2)
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n, err := r.Read(buf)
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assert.NoError(t, err)
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assert.Equal(t, 2, n)
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assert.Equal(t, []byte{1, 2}, buf[:n])
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// Test that we can get another accountstream out
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in3 := ioutil.NopCloser(bytes.NewBuffer([]byte{3, 1, 2}))
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r2 := as.WrapStream(in3)
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as2, ok := r2.(Accounter)
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require.True(t, ok)
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assert.True(t, in3 == as2.OldStream())
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assert.True(t, in2 == acc.OldStream())
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accs2, ok := r2.(*accountStream)
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require.True(t, ok)
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assert.Equal(t, acc, accs2.acc)
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assert.True(t, in3 == accs2.in)
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// Test we can set this new accountStream
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as2.SetStream(in)
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assert.True(t, in == as2.OldStream())
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// Test UnWrap on accountStream
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unwrapped, wrap := UnWrap(r2)
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assert.True(t, unwrapped == in)
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r3 := wrap(in2)
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assert.True(t, in2 == r3.(Accounter).OldStream())
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// TestUnWrap on a normal io.Reader
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unwrapped, wrap = UnWrap(in2)
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assert.True(t, unwrapped == in2)
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assert.True(t, wrap(in3) == in3)
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}
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func TestAccountMaxTransfer(t *testing.T) {
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old := fs.Config.MaxTransfer
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oldMode := fs.Config.CutoffMode
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fs.Config.MaxTransfer = 15
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defer func() {
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fs.Config.MaxTransfer = old
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fs.Config.CutoffMode = oldMode
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}()
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in := ioutil.NopCloser(bytes.NewBuffer(make([]byte, 100)))
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stats := NewStats()
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acc := newAccountSizeName(stats, in, 1, "test")
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var b = make([]byte, 10)
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n, err := acc.Read(b)
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assert.Equal(t, 10, n)
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assert.NoError(t, err)
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n, err = acc.Read(b)
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assert.Equal(t, 5, n)
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assert.Equal(t, ErrorMaxTransferLimitReachedFatal, err)
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n, err = acc.Read(b)
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assert.Equal(t, 0, n)
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assert.Equal(t, ErrorMaxTransferLimitReachedFatal, err)
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assert.True(t, fserrors.IsFatalError(err))
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fs.Config.CutoffMode = fs.CutoffModeSoft
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stats = NewStats()
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acc = newAccountSizeName(stats, in, 1, "test")
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n, err = acc.Read(b)
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assert.Equal(t, 10, n)
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assert.NoError(t, err)
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n, err = acc.Read(b)
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assert.Equal(t, 10, n)
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assert.NoError(t, err)
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n, err = acc.Read(b)
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assert.Equal(t, 10, n)
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assert.NoError(t, err)
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}
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func TestShortenName(t *testing.T) {
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for _, test := range []struct {
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in string
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size int
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want string
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}{
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{"", 0, ""},
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{"abcde", 10, "abcde"},
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{"abcde", 0, "abcde"},
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{"abcde", -1, "abcde"},
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{"abcde", 5, "abcde"},
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{"abcde", 4, "ab…e"},
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{"abcde", 3, "a…e"},
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{"abcde", 2, "a…"},
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{"abcde", 1, "…"},
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{"abcdef", 6, "abcdef"},
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{"abcdef", 5, "ab…ef"},
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{"abcdef", 4, "ab…f"},
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{"abcdef", 3, "a…f"},
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{"abcdef", 2, "a…"},
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{"áßcdèf", 1, "…"},
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{"áßcdè", 5, "áßcdè"},
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{"áßcdè", 4, "áß…è"},
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{"áßcdè", 3, "á…è"},
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{"áßcdè", 2, "á…"},
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{"áßcdè", 1, "…"},
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{"áßcdèł", 6, "áßcdèł"},
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{"áßcdèł", 5, "áß…èł"},
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{"áßcdèł", 4, "áß…ł"},
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{"áßcdèł", 3, "á…ł"},
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{"áßcdèł", 2, "á…"},
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{"áßcdèł", 1, "…"},
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} {
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t.Run(fmt.Sprintf("in=%q, size=%d", test.in, test.size), func(t *testing.T) {
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got := shortenName(test.in, test.size)
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assert.Equal(t, test.want, got)
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if test.size > 0 {
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assert.True(t, utf8.RuneCountInString(got) <= test.size, "too big")
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}
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})
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}
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}
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