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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 schwift
import (
"bytes"
"io/ioutil"
"testing"
)
func TestParseHTTPRange(t *testing.T) {
testCases := []struct {
input string
ok bool
offset int64
length uint64
}{
//all the testcases from RFC 7233, section 3.1
{"0-499", true, 0, 500},
{"500-999", true, 500, 500},
{"-500", true, -1, 500},
{"9500-", true, 9500, 0},
{"0-0", true, 0, 1},
{"-1", true, -1, 1},
//and then some more
{"0-", true, 0, 0},
{"-", true, 0, 0},
//some error cases for 100% coverage
{"no dash", false, 0, 0},
{"what-the-heck", false, 0, 0},
{"-X", false, 0, 0},
{"X-X", false, 0, 0},
{"X-", false, 0, 0},
{"999-500", false, 0, 0},
}
for _, tc := range testCases {
o, l, ok := parseHTTPRange(tc.input)
if tc.ok && !ok {
t.Errorf("expected %q to parse, but did not", tc.input)
}
if !tc.ok && ok {
t.Errorf("expected %q to fail, but parsed into (%d, %d)",
tc.input, o, l)
}
if o != tc.offset || l != tc.length {
t.Errorf("expected %q to parse as (%d, %d), but (%d, %d)",
tc.input, tc.offset, tc.length, o, l)
}
}
}
func TestSegmentingReader(t *testing.T) {
testCases := []struct {
input string
segments []string
}{
{"abcdefghi", []string{"abc", "def", "ghi"}},
{"abcdefgh", []string{"abc", "def", "gh"}},
{"abcdefg", []string{"abc", "def", "g"}},
}
for _, tc := range testCases {
sr := segmentingReader{
Reader: bytes.NewReader([]byte(tc.input)),
SegmentSizeBytes: 3,
}
for _, expected := range tc.segments {
segment := sr.NextSegment()
if segment == nil {
t.Errorf("expected segment %q, but NextSegment() returned nil", expected)
break
}
actual, err := ioutil.ReadAll(segment)
if err != nil {
t.Errorf("expected segment %q, but got read error %q", expected, err.Error())
break
}
if string(actual) != expected {
t.Errorf("expected segment %q, but got %q", expected, string(actual))
}
}
segment := sr.NextSegment()
if segment != nil {
actual, err := ioutil.ReadAll(segment)
if err == nil {
t.Errorf("expected no more segments, but got segment producing read error %q", err.Error())
} else {
t.Errorf("expected no more segments, but got %q", string(actual))
}
}
}
}
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