go map_test 源码
golang map_test 代码
文件路径：/src/cmd/compile/internal/test/testdata/map_test.go
// 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.
// map.go tests map operations.
package main
import "testing"
//go:noinline
func lenMap_ssa(v map[int]int) int {
return len(v)
}
func testLenMap(t *testing.T) {
v := make(map[int]int)
v[0] = 0
v[1] = 0
v[2] = 0
if want, got := 3, lenMap_ssa(v); got != want {
t.Errorf("expected len(map) = %d, got %d", want, got)
}
}
func testLenNilMap(t *testing.T) {
var v map[int]int
if want, got := 0, lenMap_ssa(v); got != want {
t.Errorf("expected len(nil) = %d, got %d", want, got)
}
}
func TestMap(t *testing.T) {
testLenMap(t)
testLenNilMap(t)
}
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