gcc/libgo/go/expvar/expvar_test.go
Ian Lance Taylor 7a9389330e Add Go frontend, libgo library, and Go testsuite.
gcc/:
	* gcc.c (default_compilers): Add entry for ".go".
	* common.opt: Add -static-libgo as a driver option.
	* doc/install.texi (Configuration): Mention libgo as an option for
	--enable-shared.  Mention go as an option for --enable-languages.
	* doc/invoke.texi (Overall Options): Mention .go as a file name
	suffix.  Mention go as a -x option.
	* doc/frontends.texi (G++ and GCC): Mention Go as a supported
	language.
	* doc/sourcebuild.texi (Top Level): Mention libgo.
	* doc/standards.texi (Standards): Add section on Go language.
	Move references for other languages into their own section.
	* doc/contrib.texi (Contributors): Mention that I contributed the
	Go frontend.
gcc/testsuite/:
	* lib/go.exp: New file.
	* lib/go-dg.exp: New file.
	* lib/go-torture.exp: New file.
	* lib/target-supports.exp (check_compile): Match // Go.

From-SVN: r167407
2010-12-03 04:34:57 +00:00

100 lines
2.0 KiB
Go

// Copyright 2009 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 expvar
import (
"json"
"testing"
)
func TestInt(t *testing.T) {
reqs := NewInt("requests")
if reqs.i != 0 {
t.Errorf("reqs.i = %v, want 0", reqs.i)
}
if reqs != Get("requests").(*Int) {
t.Errorf("Get() failed.")
}
reqs.Add(1)
reqs.Add(3)
if reqs.i != 4 {
t.Errorf("reqs.i = %v, want 4", reqs.i)
}
if s := reqs.String(); s != "4" {
t.Errorf("reqs.String() = %q, want \"4\"", s)
}
reqs.Set(-2)
if reqs.i != -2 {
t.Errorf("reqs.i = %v, want -2", reqs.i)
}
}
func TestString(t *testing.T) {
name := NewString("my-name")
if name.s != "" {
t.Errorf("name.s = %q, want \"\"", name.s)
}
name.Set("Mike")
if name.s != "Mike" {
t.Errorf("name.s = %q, want \"Mike\"", name.s)
}
if s := name.String(); s != "\"Mike\"" {
t.Errorf("reqs.String() = %q, want \"\"Mike\"\"", s)
}
}
func TestMapCounter(t *testing.T) {
colours := NewMap("bike-shed-colours")
colours.Add("red", 1)
colours.Add("red", 2)
colours.Add("blue", 4)
if x := colours.m["red"].(*Int).i; x != 3 {
t.Errorf("colours.m[\"red\"] = %v, want 3", x)
}
if x := colours.m["blue"].(*Int).i; x != 4 {
t.Errorf("colours.m[\"blue\"] = %v, want 4", x)
}
// colours.String() should be '{"red":3, "blue":4}',
// though the order of red and blue could vary.
s := colours.String()
var j interface{}
err := json.Unmarshal([]byte(s), &j)
if err != nil {
t.Errorf("colours.String() isn't valid JSON: %v", err)
}
m, ok := j.(map[string]interface{})
if !ok {
t.Error("colours.String() didn't produce a map.")
}
red := m["red"]
x, ok := red.(float64)
if !ok {
t.Error("red.Kind() is not a number.")
}
if x != 3 {
t.Errorf("red = %v, want 3", x)
}
}
func TestIntFunc(t *testing.T) {
x := int(4)
ix := IntFunc(func() int64 { return int64(x) })
if s := ix.String(); s != "4" {
t.Errorf("ix.String() = %v, want 4", s)
}
x++
if s := ix.String(); s != "5" {
t.Errorf("ix.String() = %v, want 5", s)
}
}