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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 (
"math"
"testing"
)
var (
allBasicInts = []int{-1, 0, 1}
allInt8s = []int8{math.MinInt8, -1, 0, 1, math.MaxInt8}
allInt16s = []int16{math.MinInt16, -1, 0, 1, math.MaxInt16}
allInt32s = []int32{math.MinInt32, -1, 0, 1, math.MaxInt32}
allInt64s = []int64{math.MinInt64, -1, 0, 1, math.MaxInt64}
allBasicUints = []uint{0, 1}
allUintptrs = []uintptr{0, 1, ^uintptr(0)}
allUint8s = []uint8{0, 1, math.MaxUint8}
allUint16s = []uint16{0, 1, math.MaxUint16}
allUint32s = []uint32{0, 1, math.MaxUint32}
allUint64s = []uint64{0, 1, math.MaxUint64}
)
var allInts = flatten(
allBasicInts,
allInt8s,
allInt16s,
allInt32s,
allInt64s,
)
var allUints = flatten(
allBasicUints,
allUintptrs,
allUint8s,
allUint16s,
allUint32s,
allUint64s,
)
func TestInt(t *testing.T) {
runTestCases(t, false, "plain", allInts)
runTestCases(t, false, "pointers", pointersTo(allInts))
runTestCases(t, false, "interfaces", interfacesTo(allInts))
runTestCases(t, false, "interfacesTo", interfacesTo(pointersTo(allInts)))
}
func TestIntTruncation(t *testing.T) {
runTestCases(t, true, "pass", []interface{}{
truncatingInt8{save: math.MinInt8 - 1},
truncatingInt16{save: math.MinInt16 - 1},
truncatingInt32{save: math.MinInt32 - 1},
truncatingInt8{save: math.MaxInt8 + 1},
truncatingInt16{save: math.MaxInt16 + 1},
truncatingInt32{save: math.MaxInt32 + 1},
})
runTestCases(t, false, "fail", []interface{}{
truncatingInt8{save: 1},
truncatingInt16{save: 1},
truncatingInt32{save: 1},
})
}
func TestUint(t *testing.T) {
runTestCases(t, false, "plain", allUints)
runTestCases(t, false, "pointers", pointersTo(allUints))
runTestCases(t, false, "interfaces", interfacesTo(allUints))
runTestCases(t, false, "interfacesTo", interfacesTo(pointersTo(allUints)))
}
func TestUintTruncation(t *testing.T) {
runTestCases(t, true, "pass", []interface{}{
truncatingUint8{save: math.MaxUint8 + 1},
truncatingUint16{save: math.MaxUint16 + 1},
truncatingUint32{save: math.MaxUint32 + 1},
})
runTestCases(t, false, "fail", []interface{}{
truncatingUint8{save: 1},
truncatingUint16{save: 1},
truncatingUint32{save: 1},
})
}
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