1// Copyright 2012 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5package strconv_test
6
7import (
8	"runtime"
9	. "strconv"
10	"strings"
11	"testing"
12)
13
14var (
15	globalBuf [64]byte
16	nextToOne = "1.00000000000000011102230246251565404236316680908203125" + strings.Repeat("0", 10000) + "1"
17
18	mallocTest = []struct {
19		count int
20		desc  string
21		fn    func()
22	}{
23		{0, `AppendInt(localBuf[:0], 123, 10)`, func() {
24			var localBuf [64]byte
25			AppendInt(localBuf[:0], 123, 10)
26		}},
27		{0, `AppendInt(globalBuf[:0], 123, 10)`, func() { AppendInt(globalBuf[:0], 123, 10) }},
28		{0, `AppendFloat(localBuf[:0], 1.23, 'g', 5, 64)`, func() {
29			var localBuf [64]byte
30			AppendFloat(localBuf[:0], 1.23, 'g', 5, 64)
31		}},
32		{0, `AppendFloat(globalBuf[:0], 1.23, 'g', 5, 64)`, func() { AppendFloat(globalBuf[:0], 1.23, 'g', 5, 64) }},
33		{0, `ParseFloat("123.45", 64)`, func() { ParseFloat("123.45", 64) }},
34		{0, `ParseFloat("123.456789123456789", 64)`, func() { ParseFloat("123.456789123456789", 64) }},
35		{0, `ParseFloat("1.000000000000000111022302462515654042363166809082031251", 64)`, func() {
36			ParseFloat("1.000000000000000111022302462515654042363166809082031251", 64)
37		}},
38		{0, `ParseFloat("1.0000000000000001110223024625156540423631668090820312500...001", 64)`, func() {
39			ParseFloat(nextToOne, 64)
40		}},
41	}
42)
43
44func TestCountMallocs(t *testing.T) {
45	if runtime.Compiler == "gccgo" {
46		t.Skip("skipping on gccgo until escape analysis is turned on")
47	}
48	if testing.Short() {
49		t.Skip("skipping malloc count in short mode")
50	}
51	if runtime.GOMAXPROCS(0) > 1 {
52		t.Skip("skipping; GOMAXPROCS>1")
53	}
54	for _, mt := range mallocTest {
55		allocs := testing.AllocsPerRun(100, mt.fn)
56		if max := float64(mt.count); allocs > max {
57			t.Errorf("%s: %v allocs, want <=%v", mt.desc, allocs, max)
58		}
59	}
60}
61
62func TestErrorPrefixes(t *testing.T) {
63	_, errInt := Atoi("INVALID")
64	_, errBool := ParseBool("INVALID")
65	_, errFloat := ParseFloat("INVALID", 64)
66	_, errInt64 := ParseInt("INVALID", 10, 64)
67	_, errUint64 := ParseUint("INVALID", 10, 64)
68
69	vectors := []struct {
70		err  error  // Input error
71		want string // Function name wanted
72	}{
73		{errInt, "Atoi"},
74		{errBool, "ParseBool"},
75		{errFloat, "ParseFloat"},
76		{errInt64, "ParseInt"},
77		{errUint64, "ParseUint"},
78	}
79
80	for _, v := range vectors {
81		nerr, ok := v.err.(*NumError)
82		if !ok {
83			t.Errorf("test %s, error was not a *NumError", v.want)
84			continue
85		}
86		if got := nerr.Func; got != v.want {
87			t.Errorf("mismatching Func: got %s, want %s", got, v.want)
88		}
89	}
90
91}
92