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// Copyright 2018 The gVisor Authors.
//
// 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 tests
import (
"testing"
)
func TestLoadHooks(t *testing.T) {
runTestCases(t, false, "load-hooks", []interface{}{
// Root object being a struct.
afterLoadStruct{v: 1},
valueLoadStruct{v: 1},
genericContainer{v: &afterLoadStruct{v: 1}},
genericContainer{v: &valueLoadStruct{v: 1}},
sliceContainer{v: []interface{}{&afterLoadStruct{v: 1}}},
sliceContainer{v: []interface{}{&valueLoadStruct{v: 1}}},
// Root object being a pointer.
&afterLoadStruct{v: 1},
&valueLoadStruct{v: 1},
&genericContainer{v: &afterLoadStruct{v: 1}},
&genericContainer{v: &valueLoadStruct{v: 1}},
&sliceContainer{v: []interface{}{&afterLoadStruct{v: 1}}},
&sliceContainer{v: []interface{}{&valueLoadStruct{v: 1}}},
&mapContainer{v: map[int]interface{}{0: &afterLoadStruct{v: 1}}},
&mapContainer{v: map[int]interface{}{0: &valueLoadStruct{v: 1}}},
})
}
func TestCycles(t *testing.T) {
// cs is a single object cycle.
cs := cycleStruct{nil}
cs.c = &cs
// cs1 and cs2 are in a two object cycle.
cs1 := cycleStruct{nil}
cs2 := cycleStruct{nil}
cs1.c = &cs2
cs2.c = &cs1
runTestCases(t, false, "cycles", []interface{}{
cs,
cs1,
})
}
func TestDeadlock(t *testing.T) {
// bs is a single object cycle. This does not cause deadlock because an
// object cannot wait for itself.
bs := badCycleStruct{nil}
bs.b = &bs
runTestCases(t, false, "self", []interface{}{
&bs,
})
// bs2 and bs2 are in a deadlocking cycle.
bs1 := badCycleStruct{nil}
bs2 := badCycleStruct{nil}
bs1.b = &bs2
bs2.b = &bs1
runTestCases(t, true, "deadlock", []interface{}{
&bs1,
})
}
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