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// Copyright 2018 Google Inc.
//
// 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 p9
import (
"testing"
)
func TestVersionNumberEquivalent(t *testing.T) {
for i := uint32(0); i < 1024; i++ {
str := versionString(i)
version, ok := parseVersion(str)
if !ok {
t.Errorf("#%d: parseVersion(%q) failed, want success", i, str)
continue
}
if i != version {
t.Errorf("#%d: got version %d, want %d", i, i, version)
}
}
}
func TestVersionStringEquivalent(t *testing.T) {
// There is one case where the version is not equivalent on purpose,
// that is 9P2000.L.Google.0. It is not equivalent because versionString
// must always return the more generic 9P2000.L for legacy servers that
// check for it. See net/9p/client.c.
str := "9P2000.L.Google.0"
version, ok := parseVersion(str)
if !ok {
t.Errorf("parseVersion(%q) failed, want success", str)
}
if got := versionString(version); got != "9P2000.L" {
t.Errorf("versionString(%d) got %q, want %q", version, got, "9P2000.L")
}
for _, test := range []struct {
versionString string
}{
{
versionString: "9P2000.L",
},
{
versionString: "9P2000.L.Google.1",
},
{
versionString: "9P2000.L.Google.347823894",
},
} {
version, ok := parseVersion(test.versionString)
if !ok {
t.Errorf("parseVersion(%q) failed, want success", test.versionString)
continue
}
if got := versionString(version); got != test.versionString {
t.Errorf("versionString(%d) got %q, want %q", version, got, test.versionString)
}
}
}
func TestParseVersion(t *testing.T) {
for _, test := range []struct {
versionString string
expectSuccess bool
expectedVersion uint32
}{
{
versionString: "9P",
expectSuccess: false,
},
{
versionString: "9P.L",
expectSuccess: false,
},
{
versionString: "9P200.L",
expectSuccess: false,
},
{
versionString: "9P2000",
expectSuccess: false,
},
{
versionString: "9P2000.L.Google.-1",
expectSuccess: false,
},
{
versionString: "9P2000.L.Google.",
expectSuccess: false,
},
{
versionString: "9P2000.L.Google.3546343826724305832",
expectSuccess: false,
},
{
versionString: "9P2001.L",
expectSuccess: false,
},
{
versionString: "9P2000.L",
expectSuccess: true,
expectedVersion: 0,
},
{
versionString: "9P2000.L.Google.0",
expectSuccess: true,
expectedVersion: 0,
},
{
versionString: "9P2000.L.Google.1",
expectSuccess: true,
expectedVersion: 1,
},
} {
version, ok := parseVersion(test.versionString)
if ok != test.expectSuccess {
t.Errorf("parseVersion(%q) got (_, %v), want (_, %v)", test.versionString, ok, test.expectSuccess)
continue
}
if !test.expectSuccess {
continue
}
if version != test.expectedVersion {
t.Errorf("parseVersion(%q) got (%d, _), want (%d, _)", test.versionString, version, test.expectedVersion)
}
}
}
func BenchmarkParseVersion(b *testing.B) {
for n := 0; n < b.N; n++ {
parseVersion("9P2000.L.Google.1")
}
}
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