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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package http
import (
"testing"
)
var ParseRangeTests = []struct {
s string
length int64
r []httpRange
}{
{"", 0, nil},
{"", 1000, nil},
{"foo", 0, nil},
{"bytes=", 0, nil},
{"bytes=7", 10, nil},
{"bytes= 7 ", 10, nil},
{"bytes=1-", 0, nil},
{"bytes=5-4", 10, nil},
{"bytes=0-2,5-4", 10, nil},
{"bytes=2-5,4-3", 10, nil},
{"bytes=--5,4--3", 10, nil},
{"bytes=A-", 10, nil},
{"bytes=A- ", 10, nil},
{"bytes=A-Z", 10, nil},
{"bytes= -Z", 10, nil},
{"bytes=5-Z", 10, nil},
{"bytes=Ran-dom, garbage", 10, nil},
{"bytes=0x01-0x02", 10, nil},
{"bytes= ", 10, nil},
{"bytes= , , , ", 10, nil},
{"bytes=0-9", 10, []httpRange{{0, 10}}},
{"bytes=0-", 10, []httpRange{{0, 10}}},
{"bytes=5-", 10, []httpRange{{5, 5}}},
{"bytes=0-20", 10, []httpRange{{0, 10}}},
{"bytes=15-,0-5", 10, []httpRange{{0, 6}}},
{"bytes=1-2,5-", 10, []httpRange{{1, 2}, {5, 5}}},
{"bytes=-2 , 7-", 11, []httpRange{{9, 2}, {7, 4}}},
{"bytes=0-0 ,2-2, 7-", 11, []httpRange{{0, 1}, {2, 1}, {7, 4}}},
{"bytes=-5", 10, []httpRange{{5, 5}}},
{"bytes=-15", 10, []httpRange{{0, 10}}},
{"bytes=0-499", 10000, []httpRange{{0, 500}}},
{"bytes=500-999", 10000, []httpRange{{500, 500}}},
{"bytes=-500", 10000, []httpRange{{9500, 500}}},
{"bytes=9500-", 10000, []httpRange{{9500, 500}}},
{"bytes=0-0,-1", 10000, []httpRange{{0, 1}, {9999, 1}}},
{"bytes=500-600,601-999", 10000, []httpRange{{500, 101}, {601, 399}}},
{"bytes=500-700,601-999", 10000, []httpRange{{500, 201}, {601, 399}}},
// Match Apache laxity:
{"bytes= 1 -2 , 4- 5, 7 - 8 , ,,", 11, []httpRange{{1, 2}, {4, 2}, {7, 2}}},
}
func TestParseRange(t *testing.T) {
for _, test := range ParseRangeTests {
r := test.r
ranges, err := parseRange(test.s, test.length)
if err != nil && r != nil {
t.Errorf("parseRange(%q) returned error %q", test.s, err)
}
if len(ranges) != len(r) {
t.Errorf("len(parseRange(%q)) = %d, want %d", test.s, len(ranges), len(r))
continue
}
for i := range r {
if ranges[i].start != r[i].start {
t.Errorf("parseRange(%q)[%d].start = %d, want %d", test.s, i, ranges[i].start, r[i].start)
}
if ranges[i].length != r[i].length {
t.Errorf("parseRange(%q)[%d].length = %d, want %d", test.s, i, ranges[i].length, r[i].length)
}
}
}
}