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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 (
"reflect"
"testing"
)
var allMapPrimitives = []interface{}{
bool(true),
int(1),
int8(1),
int16(1),
int32(1),
int64(1),
uint(1),
uintptr(1),
uint8(1),
uint16(1),
uint32(1),
uint64(1),
string(""),
registeredMapStruct{},
}
var allMapKeys = flatten(allMapPrimitives, pointersTo(allMapPrimitives))
var allMapValues = flatten(allMapPrimitives, pointersTo(allMapPrimitives), interfacesTo(allMapPrimitives))
var emptyMaps = combine(allMapKeys, allMapValues, func(v1, v2 interface{}) interface{} {
m := reflect.MakeMap(reflect.MapOf(reflect.TypeOf(v1), reflect.TypeOf(v2)))
return m.Interface()
})
var fullMaps = combine(allMapKeys, allMapValues, func(v1, v2 interface{}) interface{} {
m := reflect.MakeMap(reflect.MapOf(reflect.TypeOf(v1), reflect.TypeOf(v2)))
m.SetMapIndex(reflect.Zero(reflect.TypeOf(v1)), reflect.Zero(reflect.TypeOf(v2)))
return m.Interface()
})
func TestMapAliasing(t *testing.T) {
v := make(map[int]int)
ptrToV := &v
aliases := []map[int]int{v, v}
runTestCases(t, false, "", []interface{}{ptrToV, aliases})
}
func TestMapsEmpty(t *testing.T) {
runTestCases(t, false, "plain", emptyMaps)
runTestCases(t, false, "pointers", pointersTo(emptyMaps))
runTestCases(t, false, "interfaces", interfacesTo(emptyMaps))
runTestCases(t, false, "interfacesToPointers", interfacesTo(pointersTo(emptyMaps)))
}
func TestMapsFull(t *testing.T) {
runTestCases(t, false, "plain", fullMaps)
runTestCases(t, false, "pointers", pointersTo(fullMaps))
runTestCases(t, false, "interfaces", interfacesTo(fullMaps))
runTestCases(t, false, "interfacesToPointer", interfacesTo(pointersTo(fullMaps)))
}
func TestMapContainers(t *testing.T) {
var (
nilMap map[int]interface{}
emptyMap = make(map[int]interface{})
fullMap = map[int]interface{}{0: nil}
)
runTestCases(t, false, "", []interface{}{
mapContainer{v: nilMap},
mapContainer{v: emptyMap},
mapContainer{v: fullMap},
mapPtrContainer{v: nil},
mapPtrContainer{v: &nilMap},
mapPtrContainer{v: &emptyMap},
mapPtrContainer{v: &fullMap},
})
}
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