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// 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 exvar
import (
"fmt";
"json";
"testing";
)
func TestInt(t *testing.T) {
reqs := NewInt("requests");
if reqs.i != 0 {
t.Errorf("reqs.i = %v, want 4", 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);
}
}
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();
j, ok, errtok := json.StringToJson(s);
if !ok {
t.Errorf("colours.String() isn't valid JSON: %v", errtok)
}
if j.Kind() != json.MapKind {
t.Error("colours.String() didn't produce a map.")
}
red := j.Get("red");
if red.Kind() != json.NumberKind {
t.Error("red.Kind() is not a NumberKind.")
}
if x := red.Number(); x != 3 {
t.Error("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);
}
}
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