48 lines
1.3 KiB
Go
48 lines
1.3 KiB
Go
// Copyright 2021 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package math_test
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import (
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"testing"
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. "math"
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)
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func TestMaxUint(t *testing.T) {
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if v := uint(MaxUint); v+1 != 0 {
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t.Errorf("MaxUint should wrap around to zero: %d", v+1)
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}
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if v := uint8(MaxUint8); v+1 != 0 {
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t.Errorf("MaxUint8 should wrap around to zero: %d", v+1)
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}
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if v := uint16(MaxUint16); v+1 != 0 {
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t.Errorf("MaxUint16 should wrap around to zero: %d", v+1)
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}
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if v := uint32(MaxUint32); v+1 != 0 {
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t.Errorf("MaxUint32 should wrap around to zero: %d", v+1)
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}
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if v := uint64(MaxUint64); v+1 != 0 {
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t.Errorf("MaxUint64 should wrap around to zero: %d", v+1)
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}
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}
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func TestMaxInt(t *testing.T) {
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if v := int(MaxInt); v+1 != MinInt {
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t.Errorf("MaxInt should wrap around to MinInt: %d", v+1)
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}
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if v := int8(MaxInt8); v+1 != MinInt8 {
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t.Errorf("MaxInt8 should wrap around to MinInt8: %d", v+1)
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}
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if v := int16(MaxInt16); v+1 != MinInt16 {
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t.Errorf("MaxInt16 should wrap around to MinInt16: %d", v+1)
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}
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if v := int32(MaxInt32); v+1 != MinInt32 {
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t.Errorf("MaxInt32 should wrap around to MinInt32: %d", v+1)
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}
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if v := int64(MaxInt64); v+1 != MinInt64 {
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t.Errorf("MaxInt64 should wrap around to MinInt64: %d", v+1)
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}
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}
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