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9cb6c5bb78
This adds support for parsing Range and Content-Range headers according to RFC 7230. The package could be extended in the future to handle other headers. Updates tailscale/corp#14772 Signed-off-by: Joe Tsai <joetsai@digital-static.net>
97 lines
2.8 KiB
Go
97 lines
2.8 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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package httphdr
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import (
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"testing"
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"github.com/google/go-cmp/cmp"
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)
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func valOk[T any](v T, ok bool) (out struct {
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V T
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Ok bool
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}) {
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out.V = v
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out.Ok = ok
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return out
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}
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func TestRange(t *testing.T) {
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tests := []struct {
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in string
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want []Range
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wantOk bool
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roundtrip bool
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}{
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{"", nil, false, false},
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{"1-3", nil, false, false},
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{"units=1-3", []Range{{1, 3}}, false, false},
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{"bytes=1-3", []Range{{1, 3}}, true, true},
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{"bytes=#-3", nil, false, false},
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{"bytes=#-", nil, false, false},
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{"bytes=13", nil, false, false},
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{"bytes=1-#", nil, false, false},
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{"bytes=-#", nil, false, false},
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{"bytes= , , , ,\t , \t 1-3", []Range{{1, 3}}, true, false},
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{"bytes=1-1", []Range{{1, 1}}, true, true},
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{"bytes=01-01", []Range{{1, 1}}, true, false},
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{"bytes=1-0", nil, false, false},
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{"bytes=0-5,2-3", []Range{{0, 6}, {2, 2}}, true, true},
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{"bytes=2-3,0-5", []Range{{2, 2}, {0, 6}}, true, true},
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{"bytes=0-5,2-,-5", []Range{{0, 6}, {2, 0}, {0, -5}}, true, true},
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}
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for _, tt := range tests {
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got, gotOk := ParseRange(tt.in)
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if d := cmp.Diff(valOk(got, gotOk), valOk(tt.want, tt.wantOk)); d != "" {
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t.Errorf("ParseRange(%q) mismatch (-got +want):\n%s", tt.in, d)
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}
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if tt.roundtrip {
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got, gotOk := FormatRange(tt.want)
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if d := cmp.Diff(valOk(got, gotOk), valOk(tt.in, tt.wantOk)); d != "" {
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t.Errorf("FormatRange(%v) mismatch (-got +want):\n%s", tt.want, d)
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}
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}
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}
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}
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type contentRange struct{ Start, Length, CompleteLength int64 }
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func TestContentRange(t *testing.T) {
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tests := []struct {
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in string
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want contentRange
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wantOk bool
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roundtrip bool
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}{
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{"", contentRange{}, false, false},
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{"bytes 5-6/*", contentRange{5, 2, -1}, true, true},
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{"units 5-6/*", contentRange{}, false, false},
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{"bytes 5-6/*", contentRange{}, false, false},
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{"bytes 5-5/*", contentRange{5, 1, -1}, true, true},
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{"bytes 5-4/*", contentRange{}, false, false},
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{"bytes 5-5/6", contentRange{5, 1, 6}, true, true},
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{"bytes 05-005/0006", contentRange{5, 1, 6}, true, false},
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{"bytes 5-5/5", contentRange{}, false, false},
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{"bytes #-5/6", contentRange{}, false, false},
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{"bytes 5-#/6", contentRange{}, false, false},
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{"bytes 5-5/#", contentRange{}, false, false},
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}
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for _, tt := range tests {
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start, length, completeLength, gotOk := ParseContentRange(tt.in)
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got := contentRange{start, length, completeLength}
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if d := cmp.Diff(valOk(got, gotOk), valOk(tt.want, tt.wantOk)); d != "" {
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t.Errorf("ParseContentRange mismatch (-got +want):\n%s", d)
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}
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if tt.roundtrip {
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got, gotOk := FormatContentRange(tt.want.Start, tt.want.Length, tt.want.CompleteLength)
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if d := cmp.Diff(valOk(got, gotOk), valOk(tt.in, tt.wantOk)); d != "" {
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t.Errorf("FormatContentRange mismatch (-got +want):\n%s", d)
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}
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}
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}
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}
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