rclone/fs/accounting/accounting_test.go
Nick Craig-Wood 2e21c58e6a fs: deglobalise the config #4685
This is done by making fs.Config private and attaching it to the
context instead.

The Config should be obtained with fs.GetConfig and fs.AddConfig
should be used to get a new mutable config that can be changed.
2020-11-26 16:40:12 +00:00

388 lines
9.7 KiB
Go

package accounting
import (
"bytes"
"context"
"fmt"
"io"
"io/ioutil"
"strings"
"testing"
"unicode/utf8"
"github.com/rclone/rclone/fs"
"github.com/rclone/rclone/fs/asyncreader"
"github.com/rclone/rclone/fs/fserrors"
"github.com/rclone/rclone/lib/readers"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
// Check it satisfies the interfaces
var (
_ io.ReadCloser = &Account{}
_ io.WriterTo = &Account{}
_ io.Reader = &accountStream{}
_ Accounter = &Account{}
_ Accounter = &accountStream{}
)
func TestNewAccountSizeName(t *testing.T) {
ctx := context.Background()
in := ioutil.NopCloser(bytes.NewBuffer([]byte{1}))
stats := NewStats(ctx)
acc := newAccountSizeName(context.Background(), stats, in, 1, "test")
assert.Equal(t, in, acc.in)
assert.Equal(t, acc, stats.inProgress.get("test"))
err := acc.Close()
assert.NoError(t, err)
assert.Equal(t, acc, stats.inProgress.get("test"))
acc.Done()
assert.Nil(t, stats.inProgress.get("test"))
assert.False(t, acc.HasBuffer())
}
func TestAccountWithBuffer(t *testing.T) {
ctx := context.Background()
in := ioutil.NopCloser(bytes.NewBuffer([]byte{1}))
stats := NewStats(ctx)
acc := newAccountSizeName(ctx, stats, in, -1, "test")
assert.False(t, acc.HasBuffer())
acc.WithBuffer()
assert.True(t, acc.HasBuffer())
// should have a buffer for an unknown size
_, ok := acc.in.(*asyncreader.AsyncReader)
require.True(t, ok)
assert.NoError(t, acc.Close())
acc = newAccountSizeName(ctx, stats, in, 1, "test")
acc.WithBuffer()
// should not have a buffer for a small size
_, ok = acc.in.(*asyncreader.AsyncReader)
require.False(t, ok)
assert.NoError(t, acc.Close())
}
func TestAccountGetUpdateReader(t *testing.T) {
ctx := context.Background()
test := func(doClose bool) func(t *testing.T) {
return func(t *testing.T) {
in := ioutil.NopCloser(bytes.NewBuffer([]byte{1}))
stats := NewStats(ctx)
acc := newAccountSizeName(ctx, stats, in, 1, "test")
assert.Equal(t, in, acc.GetReader())
assert.Equal(t, acc, stats.inProgress.get("test"))
if doClose {
// close the account before swapping it out
require.NoError(t, acc.Close())
}
in2 := ioutil.NopCloser(bytes.NewBuffer([]byte{1}))
acc.UpdateReader(ctx, in2)
assert.Equal(t, in2, acc.GetReader())
assert.Equal(t, acc, stats.inProgress.get("test"))
assert.NoError(t, acc.Close())
}
}
t.Run("NoClose", test(false))
t.Run("Close", test(true))
}
func TestAccountRead(t *testing.T) {
ctx := context.Background()
in := ioutil.NopCloser(bytes.NewBuffer([]byte{1, 2, 3}))
stats := NewStats(ctx)
acc := newAccountSizeName(ctx, stats, in, 1, "test")
assert.True(t, acc.values.start.IsZero())
acc.values.mu.Lock()
assert.Equal(t, 0, acc.values.lpBytes)
assert.Equal(t, int64(0), acc.values.bytes)
acc.values.mu.Unlock()
assert.Equal(t, int64(0), stats.bytes)
var buf = make([]byte, 2)
n, err := acc.Read(buf)
assert.NoError(t, err)
assert.Equal(t, 2, n)
assert.Equal(t, []byte{1, 2}, buf[:n])
assert.False(t, acc.values.start.IsZero())
acc.values.mu.Lock()
assert.Equal(t, 2, acc.values.lpBytes)
assert.Equal(t, int64(2), acc.values.bytes)
acc.values.mu.Unlock()
assert.Equal(t, int64(2), stats.bytes)
n, err = acc.Read(buf)
assert.NoError(t, err)
assert.Equal(t, 1, n)
assert.Equal(t, []byte{3}, buf[:n])
n, err = acc.Read(buf)
assert.Equal(t, io.EOF, err)
assert.Equal(t, 0, n)
assert.NoError(t, acc.Close())
}
func testAccountWriteTo(t *testing.T, withBuffer bool) {
ctx := context.Background()
buf := make([]byte, 2*asyncreader.BufferSize+1)
for i := range buf {
buf[i] = byte(i % 251)
}
in := ioutil.NopCloser(bytes.NewBuffer(buf))
stats := NewStats(ctx)
acc := newAccountSizeName(ctx, stats, in, int64(len(buf)), "test")
if withBuffer {
acc = acc.WithBuffer()
}
assert.True(t, acc.values.start.IsZero())
acc.values.mu.Lock()
assert.Equal(t, 0, acc.values.lpBytes)
assert.Equal(t, int64(0), acc.values.bytes)
acc.values.mu.Unlock()
assert.Equal(t, int64(0), stats.bytes)
var out bytes.Buffer
n, err := acc.WriteTo(&out)
assert.NoError(t, err)
assert.Equal(t, int64(len(buf)), n)
assert.Equal(t, buf, out.Bytes())
assert.False(t, acc.values.start.IsZero())
acc.values.mu.Lock()
assert.Equal(t, len(buf), acc.values.lpBytes)
assert.Equal(t, int64(len(buf)), acc.values.bytes)
acc.values.mu.Unlock()
assert.Equal(t, int64(len(buf)), stats.bytes)
assert.NoError(t, acc.Close())
}
func TestAccountWriteTo(t *testing.T) {
testAccountWriteTo(t, false)
}
func TestAccountWriteToWithBuffer(t *testing.T) {
testAccountWriteTo(t, true)
}
func TestAccountString(t *testing.T) {
ctx := context.Background()
in := ioutil.NopCloser(bytes.NewBuffer([]byte{1, 2, 3}))
stats := NewStats(ctx)
acc := newAccountSizeName(ctx, stats, in, 3, "test")
// FIXME not an exhaustive test!
assert.Equal(t, "test: 0% /3, 0/s, -", strings.TrimSpace(acc.String()))
var buf = make([]byte, 2)
n, err := acc.Read(buf)
assert.NoError(t, err)
assert.Equal(t, 2, n)
assert.Equal(t, "test: 66% /3, 0/s, -", strings.TrimSpace(acc.String()))
assert.NoError(t, acc.Close())
}
// Test the Accounter interface methods on Account and accountStream
func TestAccountAccounter(t *testing.T) {
ctx := context.Background()
in := ioutil.NopCloser(bytes.NewBuffer([]byte{1, 2, 3}))
stats := NewStats(ctx)
acc := newAccountSizeName(ctx, stats, in, 3, "test")
assert.True(t, in == acc.OldStream())
in2 := ioutil.NopCloser(bytes.NewBuffer([]byte{2, 3, 4}))
acc.SetStream(in2)
assert.True(t, in2 == acc.OldStream())
r := acc.WrapStream(in)
as, ok := r.(Accounter)
require.True(t, ok)
assert.True(t, in == as.OldStream())
assert.True(t, in2 == acc.OldStream())
accs, ok := r.(*accountStream)
require.True(t, ok)
assert.Equal(t, acc, accs.acc)
assert.True(t, in == accs.in)
// Check Read on the accountStream
var buf = make([]byte, 2)
n, err := r.Read(buf)
assert.NoError(t, err)
assert.Equal(t, 2, n)
assert.Equal(t, []byte{1, 2}, buf[:n])
// Test that we can get another accountstream out
in3 := ioutil.NopCloser(bytes.NewBuffer([]byte{3, 1, 2}))
r2 := as.WrapStream(in3)
as2, ok := r2.(Accounter)
require.True(t, ok)
assert.True(t, in3 == as2.OldStream())
assert.True(t, in2 == acc.OldStream())
accs2, ok := r2.(*accountStream)
require.True(t, ok)
assert.Equal(t, acc, accs2.acc)
assert.True(t, in3 == accs2.in)
// Test we can set this new accountStream
as2.SetStream(in)
assert.True(t, in == as2.OldStream())
// Test UnWrap on accountStream
unwrapped, wrap := UnWrap(r2)
assert.True(t, unwrapped == in)
r3 := wrap(in2)
assert.True(t, in2 == r3.(Accounter).OldStream())
// TestUnWrap on a normal io.Reader
unwrapped, wrap = UnWrap(in2)
assert.True(t, unwrapped == in2)
assert.True(t, wrap(in3) == in3)
}
func TestAccountMaxTransfer(t *testing.T) {
ctx := context.Background()
ci := fs.GetConfig(ctx)
old := ci.MaxTransfer
oldMode := ci.CutoffMode
ci.MaxTransfer = 15
defer func() {
ci.MaxTransfer = old
ci.CutoffMode = oldMode
}()
in := ioutil.NopCloser(bytes.NewBuffer(make([]byte, 100)))
stats := NewStats(ctx)
acc := newAccountSizeName(ctx, stats, in, 1, "test")
var b = make([]byte, 10)
n, err := acc.Read(b)
assert.Equal(t, 10, n)
assert.NoError(t, err)
n, err = acc.Read(b)
assert.Equal(t, 5, n)
assert.Equal(t, ErrorMaxTransferLimitReachedFatal, err)
n, err = acc.Read(b)
assert.Equal(t, 0, n)
assert.Equal(t, ErrorMaxTransferLimitReachedFatal, err)
assert.True(t, fserrors.IsFatalError(err))
ci.CutoffMode = fs.CutoffModeSoft
stats = NewStats(ctx)
acc = newAccountSizeName(ctx, stats, in, 1, "test")
n, err = acc.Read(b)
assert.Equal(t, 10, n)
assert.NoError(t, err)
n, err = acc.Read(b)
assert.Equal(t, 10, n)
assert.NoError(t, err)
n, err = acc.Read(b)
assert.Equal(t, 10, n)
assert.NoError(t, err)
}
func TestAccountMaxTransferWriteTo(t *testing.T) {
ctx := context.Background()
ci := fs.GetConfig(ctx)
old := ci.MaxTransfer
oldMode := ci.CutoffMode
ci.MaxTransfer = 15
defer func() {
ci.MaxTransfer = old
ci.CutoffMode = oldMode
}()
in := ioutil.NopCloser(readers.NewPatternReader(1024))
stats := NewStats(ctx)
acc := newAccountSizeName(ctx, stats, in, 1, "test")
var b bytes.Buffer
n, err := acc.WriteTo(&b)
assert.Equal(t, int64(15), n)
assert.Equal(t, ErrorMaxTransferLimitReachedFatal, err)
}
func TestAccountReadCtx(t *testing.T) {
ctx := context.Background()
ctx, cancel := context.WithCancel(ctx)
in := ioutil.NopCloser(bytes.NewBuffer(make([]byte, 100)))
stats := NewStats(ctx)
acc := newAccountSizeName(ctx, stats, in, 1, "test")
var b = make([]byte, 10)
n, err := acc.Read(b)
assert.Equal(t, 10, n)
assert.NoError(t, err)
cancel()
n, err = acc.Read(b)
assert.Equal(t, 0, n)
assert.Equal(t, context.Canceled, err)
}
func TestShortenName(t *testing.T) {
for _, test := range []struct {
in string
size int
want string
}{
{"", 0, ""},
{"abcde", 10, "abcde"},
{"abcde", 0, "abcde"},
{"abcde", -1, "abcde"},
{"abcde", 5, "abcde"},
{"abcde", 4, "ab…e"},
{"abcde", 3, "a…e"},
{"abcde", 2, "a…"},
{"abcde", 1, "…"},
{"abcdef", 6, "abcdef"},
{"abcdef", 5, "ab…ef"},
{"abcdef", 4, "ab…f"},
{"abcdef", 3, "a…f"},
{"abcdef", 2, "a…"},
{"áßcdèf", 1, "…"},
{"áßcdè", 5, "áßcdè"},
{"áßcdè", 4, "áß…è"},
{"áßcdè", 3, "á…è"},
{"áßcdè", 2, "á…"},
{"áßcdè", 1, "…"},
{"áßcdèł", 6, "áßcdèł"},
{"áßcdèł", 5, "áß…èł"},
{"áßcdèł", 4, "áß…ł"},
{"áßcdèł", 3, "á…ł"},
{"áßcdèł", 2, "á…"},
{"áßcdèł", 1, "…"},
} {
t.Run(fmt.Sprintf("in=%q, size=%d", test.in, test.size), func(t *testing.T) {
got := shortenName(test.in, test.size)
assert.Equal(t, test.want, got)
if test.size > 0 {
assert.True(t, utf8.RuneCountInString(got) <= test.size, "too big")
}
})
}
}