146 lines
3.5 KiB
Go
146 lines
3.5 KiB
Go
// Copyright 2018 The gVisor Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package p9
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import (
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"testing"
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)
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func TestVersionNumberEquivalent(t *testing.T) {
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for i := uint32(0); i < 1024; i++ {
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str := versionString(i)
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version, ok := parseVersion(str)
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if !ok {
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t.Errorf("#%d: parseVersion(%q) failed, want success", i, str)
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continue
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}
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if i != version {
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t.Errorf("#%d: got version %d, want %d", i, i, version)
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}
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}
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}
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func TestVersionStringEquivalent(t *testing.T) {
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// There is one case where the version is not equivalent on purpose,
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// that is 9P2000.L.Google.0. It is not equivalent because versionString
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// must always return the more generic 9P2000.L for legacy servers that
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// check for it. See net/9p/client.c.
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str := "9P2000.L.Google.0"
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version, ok := parseVersion(str)
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if !ok {
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t.Errorf("parseVersion(%q) failed, want success", str)
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}
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if got := versionString(version); got != "9P2000.L" {
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t.Errorf("versionString(%d) got %q, want %q", version, got, "9P2000.L")
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}
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for _, test := range []struct {
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versionString string
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}{
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{
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versionString: "9P2000.L",
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},
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{
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versionString: "9P2000.L.Google.1",
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},
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{
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versionString: "9P2000.L.Google.347823894",
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},
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} {
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version, ok := parseVersion(test.versionString)
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if !ok {
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t.Errorf("parseVersion(%q) failed, want success", test.versionString)
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continue
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}
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if got := versionString(version); got != test.versionString {
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t.Errorf("versionString(%d) got %q, want %q", version, got, test.versionString)
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}
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}
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}
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func TestParseVersion(t *testing.T) {
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for _, test := range []struct {
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versionString string
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expectSuccess bool
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expectedVersion uint32
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}{
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{
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versionString: "9P",
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expectSuccess: false,
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},
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{
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versionString: "9P.L",
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expectSuccess: false,
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},
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{
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versionString: "9P200.L",
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expectSuccess: false,
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},
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{
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versionString: "9P2000",
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expectSuccess: false,
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},
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{
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versionString: "9P2000.L.Google.-1",
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expectSuccess: false,
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},
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{
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versionString: "9P2000.L.Google.",
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expectSuccess: false,
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},
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{
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versionString: "9P2000.L.Google.3546343826724305832",
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expectSuccess: false,
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},
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{
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versionString: "9P2001.L",
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expectSuccess: false,
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},
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{
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versionString: "9P2000.L",
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expectSuccess: true,
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expectedVersion: 0,
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},
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{
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versionString: "9P2000.L.Google.0",
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expectSuccess: true,
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expectedVersion: 0,
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},
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{
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versionString: "9P2000.L.Google.1",
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expectSuccess: true,
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expectedVersion: 1,
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},
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} {
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version, ok := parseVersion(test.versionString)
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if ok != test.expectSuccess {
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t.Errorf("parseVersion(%q) got (_, %v), want (_, %v)", test.versionString, ok, test.expectSuccess)
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continue
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}
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if !test.expectSuccess {
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continue
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}
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if version != test.expectedVersion {
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t.Errorf("parseVersion(%q) got (%d, _), want (%d, _)", test.versionString, version, test.expectedVersion)
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}
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}
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}
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func BenchmarkParseVersion(b *testing.B) {
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for n := 0; n < b.N; n++ {
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parseVersion("9P2000.L.Google.1")
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}
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}
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