blob: 2f73ef7b990920c8269dd653ad9688274be34500 [file] [log] [blame]
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package gc
import (
"testing"
)
func nodrune(r rune) *Node {
v := new(Mpint)
v.SetInt64(int64(r))
v.Rune = true
return nodlit(Val{v})
}
func nodflt(f float64) *Node {
v := newMpflt()
v.SetFloat64(f)
return nodlit(Val{v})
}
func TestCaseClauseByConstVal(t *testing.T) {
tests := []struct {
a, b *Node
}{
// CTFLT
{nodflt(0.1), nodflt(0.2)},
// CTINT
{nodintconst(0), nodintconst(1)},
// CTRUNE
{nodrune('a'), nodrune('b')},
// CTSTR
{nodlit(Val{"ab"}), nodlit(Val{"abc"})},
{nodlit(Val{"ab"}), nodlit(Val{"xyz"})},
{nodlit(Val{"abc"}), nodlit(Val{"xyz"})},
}
for i, test := range tests {
a := caseClause{node: nod(OXXX, test.a, nil)}
b := caseClause{node: nod(OXXX, test.b, nil)}
s := caseClauseByConstVal{a, b}
if less := s.Less(0, 1); !less {
t.Errorf("%d: caseClauseByConstVal(%v, %v) = false", i, test.a, test.b)
}
if less := s.Less(1, 0); less {
t.Errorf("%d: caseClauseByConstVal(%v, %v) = true", i, test.a, test.b)
}
}
}