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15040c11b9
This allows use of newer math/big (and later debug/pe) without maintaining a vendored copy somewhere in cmd. Use for math/big, deleting cmd/compile/internal/big. Change-Id: I2bffa7a9ef115015be29fafdb02acc3e7a665d11 Reviewed-on: https://go-review.googlesource.com/31010 Reviewed-by: Minux Ma <minux@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
46 lines
1.1 KiB
Go
46 lines
1.1 KiB
Go
// Copyright 2015 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 gc
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import (
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"math/big"
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"testing"
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)
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func nodrune(r rune) *Node {
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return nodlit(Val{&Mpint{Val: *big.NewInt(int64(r)), Rune: true}})
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}
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func nodflt(f float64) *Node {
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return nodlit(Val{&Mpflt{Val: *big.NewFloat(f)}})
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}
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func TestCaseClauseByConstVal(t *testing.T) {
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tests := []struct {
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a, b *Node
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}{
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// CTFLT
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{nodflt(0.1), nodflt(0.2)},
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// CTINT
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{nodintconst(0), nodintconst(1)},
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// CTRUNE
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{nodrune('a'), nodrune('b')},
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// CTSTR
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{nodlit(Val{"ab"}), nodlit(Val{"abc"})},
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{nodlit(Val{"ab"}), nodlit(Val{"xyz"})},
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{nodlit(Val{"abc"}), nodlit(Val{"xyz"})},
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}
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for i, test := range tests {
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a := caseClause{node: nod(OXXX, test.a, nil)}
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b := caseClause{node: nod(OXXX, test.b, nil)}
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s := caseClauseByConstVal{a, b}
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if less := s.Less(0, 1); !less {
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t.Errorf("%d: caseClauseByConstVal(%v, %v) = false", i, test.a, test.b)
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}
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if less := s.Less(1, 0); less {
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t.Errorf("%d: caseClauseByConstVal(%v, %v) = true", i, test.a, test.b)
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}
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}
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}
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