Imported Upstream version 1.4upstream/1.4

1 files changed, 326 insertions, 0 deletions

diff --git a/src/strconv/atoi_test.go b/src/strconv/atoi_test.go
new file mode 100644
index 000000000..940757307
--- /dev/null
+++ b/src/strconv/atoi_test.go
@@ -0,0 +1,326 @@
+// 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 strconv_test
+
+import (
+	"errors"
+	"reflect"
+	. "strconv"
+	"testing"
+)
+
+type atoui64Test struct {
+	in  string
+	out uint64
+	err error
+}
+
+var atoui64tests = []atoui64Test{
+	{"", 0, ErrSyntax},
+	{"0", 0, nil},
+	{"1", 1, nil},
+	{"12345", 12345, nil},
+	{"012345", 12345, nil},
+	{"12345x", 0, ErrSyntax},
+	{"98765432100", 98765432100, nil},
+	{"18446744073709551615", 1<<64 - 1, nil},
+	{"18446744073709551616", 1<<64 - 1, ErrRange},
+	{"18446744073709551620", 1<<64 - 1, ErrRange},
+}
+
+var btoui64tests = []atoui64Test{
+	{"", 0, ErrSyntax},
+	{"0", 0, nil},
+	{"1", 1, nil},
+	{"12345", 12345, nil},
+	{"012345", 012345, nil},
+	{"0x12345", 0x12345, nil},
+	{"0X12345", 0x12345, nil},
+	{"12345x", 0, ErrSyntax},
+	{"98765432100", 98765432100, nil},
+	{"18446744073709551615", 1<<64 - 1, nil},
+	{"18446744073709551616", 1<<64 - 1, ErrRange},
+	{"18446744073709551620", 1<<64 - 1, ErrRange},
+	{"0xFFFFFFFFFFFFFFFF", 1<<64 - 1, nil},
+	{"0x10000000000000000", 1<<64 - 1, ErrRange},
+	{"01777777777777777777777", 1<<64 - 1, nil},
+	{"01777777777777777777778", 0, ErrSyntax},
+	{"02000000000000000000000", 1<<64 - 1, ErrRange},
+	{"0200000000000000000000", 1 << 61, nil},
+}
+
+type atoi64Test struct {
+	in  string
+	out int64
+	err error
+}
+
+var atoi64tests = []atoi64Test{
+	{"", 0, ErrSyntax},
+	{"0", 0, nil},
+	{"-0", 0, nil},
+	{"1", 1, nil},
+	{"-1", -1, nil},
+	{"12345", 12345, nil},
+	{"-12345", -12345, nil},
+	{"012345", 12345, nil},
+	{"-012345", -12345, nil},
+	{"98765432100", 98765432100, nil},
+	{"-98765432100", -98765432100, nil},
+	{"9223372036854775807", 1<<63 - 1, nil},
+	{"-9223372036854775807", -(1<<63 - 1), nil},
+	{"9223372036854775808", 1<<63 - 1, ErrRange},
+	{"-9223372036854775808", -1 << 63, nil},
+	{"9223372036854775809", 1<<63 - 1, ErrRange},
+	{"-9223372036854775809", -1 << 63, ErrRange},
+}
+
+var btoi64tests = []atoi64Test{
+	{"", 0, ErrSyntax},
+	{"0", 0, nil},
+	{"-0", 0, nil},
+	{"1", 1, nil},
+	{"-1", -1, nil},
+	{"12345", 12345, nil},
+	{"-12345", -12345, nil},
+	{"012345", 012345, nil},
+	{"-012345", -012345, nil},
+	{"0x12345", 0x12345, nil},
+	{"-0X12345", -0x12345, nil},
+	{"12345x", 0, ErrSyntax},
+	{"-12345x", 0, ErrSyntax},
+	{"98765432100", 98765432100, nil},
+	{"-98765432100", -98765432100, nil},
+	{"9223372036854775807", 1<<63 - 1, nil},
+	{"-9223372036854775807", -(1<<63 - 1), nil},
+	{"9223372036854775808", 1<<63 - 1, ErrRange},
+	{"-9223372036854775808", -1 << 63, nil},
+	{"9223372036854775809", 1<<63 - 1, ErrRange},
+	{"-9223372036854775809", -1 << 63, ErrRange},
+}
+
+type atoui32Test struct {
+	in  string
+	out uint32
+	err error
+}
+
+var atoui32tests = []atoui32Test{
+	{"", 0, ErrSyntax},
+	{"0", 0, nil},
+	{"1", 1, nil},
+	{"12345", 12345, nil},
+	{"012345", 12345, nil},
+	{"12345x", 0, ErrSyntax},
+	{"987654321", 987654321, nil},
+	{"4294967295", 1<<32 - 1, nil},
+	{"4294967296", 1<<32 - 1, ErrRange},
+}
+
+type atoi32Test struct {
+	in  string
+	out int32
+	err error
+}
+
+var atoi32tests = []atoi32Test{
+	{"", 0, ErrSyntax},
+	{"0", 0, nil},
+	{"-0", 0, nil},
+	{"1", 1, nil},
+	{"-1", -1, nil},
+	{"12345", 12345, nil},
+	{"-12345", -12345, nil},
+	{"012345", 12345, nil},
+	{"-012345", -12345, nil},
+	{"12345x", 0, ErrSyntax},
+	{"-12345x", 0, ErrSyntax},
+	{"987654321", 987654321, nil},
+	{"-987654321", -987654321, nil},
+	{"2147483647", 1<<31 - 1, nil},
+	{"-2147483647", -(1<<31 - 1), nil},
+	{"2147483648", 1<<31 - 1, ErrRange},
+	{"-2147483648", -1 << 31, nil},
+	{"2147483649", 1<<31 - 1, ErrRange},
+	{"-2147483649", -1 << 31, ErrRange},
+}
+
+type numErrorTest struct {
+	num, want string
+}
+
+var numErrorTests = []numErrorTest{
+	{"0", `strconv.ParseFloat: parsing "0": failed`},
+	{"`", "strconv.ParseFloat: parsing \"`\": failed"},
+	{"1\x00.2", `strconv.ParseFloat: parsing "1\x00.2": failed`},
+}
+
+func init() {
+	// The atoi routines return NumErrors wrapping
+	// the error and the string.  Convert the tables above.
+	for i := range atoui64tests {
+		test := &atoui64tests[i]
+		if test.err != nil {
+			test.err = &NumError{"ParseUint", test.in, test.err}
+		}
+	}
+	for i := range btoui64tests {
+		test := &btoui64tests[i]
+		if test.err != nil {
+			test.err = &NumError{"ParseUint", test.in, test.err}
+		}
+	}
+	for i := range atoi64tests {
+		test := &atoi64tests[i]
+		if test.err != nil {
+			test.err = &NumError{"ParseInt", test.in, test.err}
+		}
+	}
+	for i := range btoi64tests {
+		test := &btoi64tests[i]
+		if test.err != nil {
+			test.err = &NumError{"ParseInt", test.in, test.err}
+		}
+	}
+	for i := range atoui32tests {
+		test := &atoui32tests[i]
+		if test.err != nil {
+			test.err = &NumError{"ParseUint", test.in, test.err}
+		}
+	}
+	for i := range atoi32tests {
+		test := &atoi32tests[i]
+		if test.err != nil {
+			test.err = &NumError{"ParseInt", test.in, test.err}
+		}
+	}
+}
+
+func TestParseUint64(t *testing.T) {
+	for i := range atoui64tests {
+		test := &atoui64tests[i]
+		out, err := ParseUint(test.in, 10, 64)
+		if test.out != out || !reflect.DeepEqual(test.err, err) {
+			t.Errorf("Atoui64(%q) = %v, %v want %v, %v",
+				test.in, out, err, test.out, test.err)
+		}
+	}
+}
+
+func TestParseUint64Base(t *testing.T) {
+	for i := range btoui64tests {
+		test := &btoui64tests[i]
+		out, err := ParseUint(test.in, 0, 64)
+		if test.out != out || !reflect.DeepEqual(test.err, err) {
+			t.Errorf("ParseUint(%q) = %v, %v want %v, %v",
+				test.in, out, err, test.out, test.err)
+		}
+	}
+}
+
+func TestParseInt64(t *testing.T) {
+	for i := range atoi64tests {
+		test := &atoi64tests[i]
+		out, err := ParseInt(test.in, 10, 64)
+		if test.out != out || !reflect.DeepEqual(test.err, err) {
+			t.Errorf("Atoi64(%q) = %v, %v want %v, %v",
+				test.in, out, err, test.out, test.err)
+		}
+	}
+}
+
+func TestParseInt64Base(t *testing.T) {
+	for i := range btoi64tests {
+		test := &btoi64tests[i]
+		out, err := ParseInt(test.in, 0, 64)
+		if test.out != out || !reflect.DeepEqual(test.err, err) {
+			t.Errorf("ParseInt(%q) = %v, %v want %v, %v",
+				test.in, out, err, test.out, test.err)
+		}
+	}
+}
+
+func TestParseUint(t *testing.T) {
+	switch IntSize {
+	case 32:
+		for i := range atoui32tests {
+			test := &atoui32tests[i]
+			out, err := ParseUint(test.in, 10, 0)
+			if test.out != uint32(out) || !reflect.DeepEqual(test.err, err) {
+				t.Errorf("Atoui(%q) = %v, %v want %v, %v",
+					test.in, out, err, test.out, test.err)
+			}
+		}
+	case 64:
+		for i := range atoui64tests {
+			test := &atoui64tests[i]
+			out, err := ParseUint(test.in, 10, 0)
+			if test.out != uint64(out) || !reflect.DeepEqual(test.err, err) {
+				t.Errorf("Atoui(%q) = %v, %v want %v, %v",
+					test.in, out, err, test.out, test.err)
+			}
+		}
+	}
+}
+
+func TestParseInt(t *testing.T) {
+	switch IntSize {
+	case 32:
+		for i := range atoi32tests {
+			test := &atoi32tests[i]
+			out, err := ParseInt(test.in, 10, 0)
+			if test.out != int32(out) || !reflect.DeepEqual(test.err, err) {
+				t.Errorf("Atoi(%q) = %v, %v want %v, %v",
+					test.in, out, err, test.out, test.err)
+			}
+		}
+	case 64:
+		for i := range atoi64tests {
+			test := &atoi64tests[i]
+			out, err := ParseInt(test.in, 10, 0)
+			if test.out != int64(out) || !reflect.DeepEqual(test.err, err) {
+				t.Errorf("Atoi(%q) = %v, %v want %v, %v",
+					test.in, out, err, test.out, test.err)
+			}
+		}
+	}
+}
+
+func TestNumError(t *testing.T) {
+	for _, test := range numErrorTests {
+		err := &NumError{
+			Func: "ParseFloat",
+			Num:  test.num,
+			Err:  errors.New("failed"),
+		}
+		if got := err.Error(); got != test.want {
+			t.Errorf(`(&NumError{"ParseFloat", %q, "failed"}).Error() = %v, want %v`, test.num, got, test.want)
+		}
+	}
+}
+
+func BenchmarkAtoi(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		ParseInt("12345678", 10, 0)
+	}
+}
+
+func BenchmarkAtoiNeg(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		ParseInt("-12345678", 10, 0)
+	}
+}
+
+func BenchmarkAtoi64(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		ParseInt("12345678901234", 10, 64)
+	}
+}
+
+func BenchmarkAtoi64Neg(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		ParseInt("-12345678901234", 10, 64)
+	}
+}