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package cache
import (
"context"
"errors"
"testing"
"github.com/rclone/rclone/fs"
"github.com/rclone/rclone/fstest/mockfs"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
var (
called = 0
errSentinel = errors.New("an error")
)
func mockNewFs(t *testing.T) func(ctx context.Context, path string) (fs.Fs, error) {
called = 0
create := func(ctx context.Context, path string) (f fs.Fs, err error) {
assert.Equal(t, 0, called)
called++
switch path {
case "mock:/":
return mockfs.NewFs(ctx, "mock", "/", nil)
case "mock:/file.txt", "mock:file.txt":
fMock, err := mockfs.NewFs(ctx, "mock", "/", nil)
require.NoError(t, err)
return fMock, fs.ErrorIsFile
case "mock:/error":
return nil, errSentinel
}
t.Fatalf("Unknown path %q", path)
panic("unreachable")
}
t.Cleanup(Clear)
return create
}
func TestGet(t *testing.T) {
create := mockNewFs(t)
assert.Equal(t, 0, Entries())
f, err := GetFn(context.Background(), "mock:/", create)
require.NoError(t, err)
assert.Equal(t, 1, Entries())
f2, err := GetFn(context.Background(), "mock:/", create)
require.NoError(t, err)
assert.Equal(t, f, f2)
}
func TestGetFile(t *testing.T) {
create := mockNewFs(t)
assert.Equal(t, 0, Entries())
f, err := GetFn(context.Background(), "mock:/file.txt", create)
require.Equal(t, fs.ErrorIsFile, err)
require.NotNil(t, f)
assert.Equal(t, 2, Entries())
f2, err := GetFn(context.Background(), "mock:/file.txt", create)
require.Equal(t, fs.ErrorIsFile, err)
require.NotNil(t, f2)
assert.Equal(t, f, f2)
// check parent is there too
f2, err = GetFn(context.Background(), "mock:/", create)
require.Nil(t, err)
require.NotNil(t, f2)
assert.Equal(t, f, f2)
}
func TestGetFile2(t *testing.T) {
create := mockNewFs(t)
assert.Equal(t, 0, Entries())
f, err := GetFn(context.Background(), "mock:file.txt", create)
require.Equal(t, fs.ErrorIsFile, err)
require.NotNil(t, f)
assert.Equal(t, 2, Entries())
f2, err := GetFn(context.Background(), "mock:file.txt", create)
require.Equal(t, fs.ErrorIsFile, err)
require.NotNil(t, f2)
assert.Equal(t, f, f2)
// check parent is there too
f2, err = GetFn(context.Background(), "mock:/", create)
require.Nil(t, err)
require.NotNil(t, f2)
assert.Equal(t, f, f2)
}
func TestGetError(t *testing.T) {
create := mockNewFs(t)
assert.Equal(t, 0, Entries())
f, err := GetFn(context.Background(), "mock:/error", create)
require.Equal(t, errSentinel, err)
require.Equal(t, nil, f)
assert.Equal(t, 0, Entries())
}
func TestPut(t *testing.T) {
create := mockNewFs(t)
f, err := mockfs.NewFs(context.Background(), "mock", "/alien", nil)
require.NoError(t, err)
assert.Equal(t, 0, Entries())
Put("mock:/alien", f)
assert.Equal(t, 1, Entries())
fNew, err := GetFn(context.Background(), "mock:/alien", create)
require.NoError(t, err)
require.Equal(t, f, fNew)
assert.Equal(t, 1, Entries())
// Check canonicalisation
Put("mock:/alien/", f)
fNew, err = GetFn(context.Background(), "mock:/alien/", create)
require.NoError(t, err)
require.Equal(t, f, fNew)
assert.Equal(t, 1, Entries())
}
func TestPin(t *testing.T) {
create := mockNewFs(t)
// Test pinning and unpinning nonexistent
f, err := mockfs.NewFs(context.Background(), "mock", "/alien", nil)
require.NoError(t, err)
Pin(f)
Unpin(f)
// Now test pinning an existing
f2, err := GetFn(context.Background(), "mock:/", create)
require.NoError(t, err)
Pin(f2)
Unpin(f2)
}
func TestClearConfig(t *testing.T) {
create := mockNewFs(t)
assert.Equal(t, 0, Entries())
_, err := GetFn(context.Background(), "mock:/file.txt", create)
require.Equal(t, fs.ErrorIsFile, err)
assert.Equal(t, 2, Entries()) // file + parent
assert.Equal(t, 2, ClearConfig("mock"))
assert.Equal(t, 0, Entries())
}
func TestClear(t *testing.T) {
create := mockNewFs(t)
// Create something
_, err := GetFn(context.Background(), "mock:/", create)
require.NoError(t, err)
assert.Equal(t, 1, Entries())
Clear()
assert.Equal(t, 0, Entries())
}
func TestEntries(t *testing.T) {
create := mockNewFs(t)
assert.Equal(t, 0, Entries())
// Create something
_, err := GetFn(context.Background(), "mock:/", create)
require.NoError(t, err)
assert.Equal(t, 1, Entries())
}
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