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/******************************************************************************
*
* Copyright 2018 Stefan Majewsky <majewsky@gmx.net>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
package tests
import (
"bytes"
"context"
"fmt"
"io"
"net/http"
"strings"
"testing"
"go.xyrillian.de/schwift/v2"
)
func TestObjectLifecycle(t *testing.T) {
testWithContainer(t, func(c *schwift.Container) {
objectName := getRandomName()
o := c.Object(objectName)
expectString(t, o.Name(), objectName)
expectString(t, o.FullName(), c.Name()+"/"+objectName)
if o.Container() != c {
t.Errorf("expected o.Container() = %#v, got %#v instead\n", c, o.Container())
}
expectObjectExistence(t, o, false)
_, err := o.Headers(context.TODO())
expectError(t, err, fmt.Sprintf("could not HEAD %q in Swift: expected 200 response, got 404 instead", o.FullName()))
expectBool(t, schwift.Is(err, http.StatusNotFound), true)
expectBool(t, schwift.Is(err, http.StatusNoContent), false)
// DELETE should be idempotent and not return success on non-existence, but
// OpenStack LOVES to be inconsistent with everything (including, notably, itself)
err = o.Delete(context.TODO(), nil, nil)
expectError(t, err, fmt.Sprintf("could not DELETE %q in Swift: expected 204 response, got 404 instead: <html><h1>Not Found</h1><p>The resource could not be found.</p></html>", o.FullName()))
err = o.Upload(context.TODO(), bytes.NewReader([]byte("test")), nil, nil)
expectSuccess(t, err)
expectObjectExistence(t, o, true)
err = o.Delete(context.TODO(), nil, nil)
expectSuccess(t, err)
})
}
func TestObjectUpload(t *testing.T) {
testWithContainer(t, func(c *schwift.Container) {
// test upload with bytes.Reader
obj := c.Object("upload1")
err := obj.Upload(context.TODO(), bytes.NewReader(objectExampleContent), nil, nil)
expectSuccess(t, err)
expectObjectContent(t, obj, objectExampleContent)
// test upload with bytes.Buffer
obj = c.Object("upload2")
err = obj.Upload(context.TODO(), bytes.NewBuffer(objectExampleContent), nil, nil)
expectSuccess(t, err)
expectObjectContent(t, obj, objectExampleContent)
// test upload with strings.Reader
obj = c.Object("upload3")
err = obj.Upload(context.TODO(), strings.NewReader(string(objectExampleContent)), nil, nil)
expectSuccess(t, err)
expectObjectContent(t, obj, objectExampleContent)
// test upload with opaque io.Reader
obj = c.Object("upload4")
err = obj.Upload(context.TODO(), opaqueReader{bytes.NewReader(objectExampleContent)}, nil, nil)
expectSuccess(t, err)
expectObjectContent(t, obj, objectExampleContent)
// test upload with io.Writer
obj = c.Object("upload5")
err = obj.UploadFromWriter(context.TODO(), nil, nil, func(w io.Writer) error {
_, err := w.Write(objectExampleContent)
return err
})
expectSuccess(t, err)
expectObjectContent(t, obj, objectExampleContent)
// test upload with empty reader (should create zero-byte-sized object)
obj = c.Object("upload6")
err = obj.Upload(context.TODO(), eofReader{}, nil, nil)
expectSuccess(t, err)
expectObjectContent(t, obj, nil)
// test upload without reader (should create zero-byte-sized object)
obj = c.Object("upload7")
err = obj.Upload(context.TODO(), nil, nil, nil)
expectSuccess(t, err)
expectObjectContent(t, obj, nil)
})
}
type eofReader struct{}
func (r eofReader) Read([]byte) (int, error) {
return 0, io.EOF
}
type opaqueReader struct {
b *bytes.Reader
}
func (r opaqueReader) Read(buf []byte) (int, error) {
return r.b.Read(buf)
}
func TestObjectDownload(t *testing.T) {
testWithContainer(t, func(c *schwift.Container) {
// upload example object
obj := c.Object("example")
err := obj.Upload(context.TODO(), bytes.NewReader(objectExampleContent), nil, nil)
expectSuccess(t, err)
// test download as string
str, err := obj.Download(context.TODO(), nil).AsString()
expectSuccess(t, err)
expectString(t, str, string(objectExampleContent))
// test download as byte slice
buf, err := obj.Download(context.TODO(), nil).AsByteSlice()
expectSuccess(t, err)
expectString(t, string(buf), string(objectExampleContent))
// test download as io.ReadCloser slice
reader, err := obj.Download(context.TODO(), nil).AsReadCloser()
expectSuccess(t, err)
buf = make([]byte, 4)
_, err = reader.Read(buf)
expectSuccess(t, err)
expectString(t, string(buf), string(objectExampleContent[0:4]))
_, err = reader.Read(buf)
expectSuccess(t, err)
expectString(t, string(buf), string(objectExampleContent[4:8]))
buf, err = io.ReadAll(reader)
expectSuccess(t, err)
expectString(t, string(buf), string(objectExampleContent[8:]))
})
}
func TestObjectUpdate(t *testing.T) {
testWithContainer(t, func(c *schwift.Container) {
obj := c.Object("example")
// test that metadata update fails for non-existing object
newHeaders := schwift.NewObjectHeaders()
newHeaders.ContentType().Set("application/json")
err := obj.Update(context.TODO(), newHeaders, nil)
expectBool(t, schwift.Is(err, http.StatusNotFound), true)
expectError(t, err, fmt.Sprintf("could not POST %q in Swift: expected 202 response, got 404 instead: <html><h1>Not Found</h1><p>The resource could not be found.</p></html>", obj.FullName()))
// create object
err = obj.Upload(context.TODO(), nil, nil, nil)
expectSuccess(t, err)
hdr, err := obj.Headers(context.TODO())
expectSuccess(t, err)
expectString(t, hdr.ContentType().Get(), "application/octet-stream")
// now the metadata update should work
err = obj.Update(context.TODO(), newHeaders, nil)
expectSuccess(t, err)
obj.Invalidate()
hdr, err = obj.Headers(context.TODO())
expectSuccess(t, err)
expectString(t, hdr.ContentType().Get(), "application/json")
})
}
func TestObjectCopy(t *testing.T) {
testWithContainer(t, func(c *schwift.Container) {
obj1 := c.Object("location1")
err := obj1.Upload(context.TODO(), bytes.NewReader(objectExampleContent), nil, nil)
expectSuccess(t, err)
expectObjectExistence(t, obj1, true)
obj2 := c.Object("location2")
expectSuccess(t, obj1.CopyTo(context.TODO(), obj2, nil, nil))
expectObjectExistence(t, obj1, true)
expectObjectExistence(t, obj2, true)
expectObjectContent(t, obj2, objectExampleContent)
})
}
func TestSymlinkOperations(t *testing.T) {
testWithContainer(t, func(c *schwift.Container) {
// create a test object that we can link to
obj1 := c.Object("target")
err := obj1.Upload(context.TODO(), bytes.NewReader(objectExampleContent), nil, nil)
expectSuccess(t, err)
expectObjectExistence(t, obj1, true)
// create a symlink
obj2 := c.Object("symlink")
expectSuccess(t, obj2.SymlinkTo(context.TODO(), obj1, nil, nil))
expectObjectExistence(t, obj2, true)
expectObjectSymlink(t, obj2, obj1)
expectObjectContent(t, obj2, objectExampleContent)
// overwrite symlink with normal object
otherContent := []byte("abc")
expectSuccess(t, obj2.Upload(context.TODO(), bytes.NewReader(otherContent), nil, nil))
expectObjectExistence(t, obj2, true)
expectObjectSymlink(t, obj2, nil)
expectObjectContent(t, obj2, otherContent)
// overwrite normal object with symlink
expectSuccess(t, obj2.SymlinkTo(context.TODO(), obj1, nil, nil))
expectObjectExistence(t, obj2, true)
expectObjectSymlink(t, obj2, obj1)
expectObjectContent(t, obj2, objectExampleContent)
// deep-copy symlink
obj3 := c.Object("copy")
expectSuccess(t, obj2.CopyTo(context.TODO(), obj3, nil, nil))
expectObjectExistence(t, obj3, true)
expectObjectSymlink(t, obj3, nil)
expectObjectContent(t, obj3, objectExampleContent)
// shallow-copy symlink
expectSuccess(t, obj2.CopyTo(context.TODO(), obj3, &schwift.CopyOptions{
ShallowCopySymlinks: true,
}, nil))
expectObjectExistence(t, obj3, true)
expectObjectSymlink(t, obj3, obj1)
expectObjectContent(t, obj3, objectExampleContent)
// delete symlink
expectSuccess(t, obj2.Delete(context.TODO(), nil, nil))
expectObjectExistence(t, obj2, false)
})
}
////////////////////////////////////////////////////////////////////////////////
// helpers
func expectObjectExistence(t *testing.T, obj *schwift.Object, expectedExists bool) {
t.Helper()
obj.Invalidate()
actualExists, err := obj.Exists(context.TODO())
expectSuccess(t, err)
expectBool(t, actualExists, expectedExists)
}
func expectObjectContent(t *testing.T, obj *schwift.Object, expected []byte) {
t.Helper()
str, err := obj.Download(context.TODO(), nil).AsString()
expectSuccess(t, err)
expectString(t, str, string(expected))
obj.Invalidate()
hdr, err := obj.Headers(context.TODO())
expectSuccess(t, err)
if !hdr.IsLargeObject() {
expectString(t, hdr.Etag().Get(), etagOf(expected))
}
}
func expectObjectSymlink(t *testing.T, source, expectedTarget *schwift.Object) {
t.Helper()
_, target, err := source.SymlinkHeaders(context.TODO())
if expectedTarget == nil {
switch err {
case nil:
if target != nil {
t.Errorf("expected %s to not be a symlink, but found symlink to %s\n",
source.FullName(), target.FullName())
}
default:
t.Errorf("got unexpected error from Object.SymlinkHeaders() for %s: %s\n",
source.FullName(), err.Error())
}
} else {
if err != nil {
t.Errorf("expected %s to be a symlink to %s, but Object.SymlinkHeaders() returned error: %s\n",
source.FullName(), expectedTarget.FullName(), err.Error())
} else if target.FullName() != expectedTarget.FullName() {
t.Errorf("expected %s to be a symlink to %s, but got target %s\n",
source.FullName(), expectedTarget.FullName(), target.FullName())
}
}
}
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