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authorIan Lance Taylor <ian@gcc.gnu.org>2011-12-14 15:41:54 +0000
committerIan Lance Taylor <ian@gcc.gnu.org>2011-12-14 15:41:54 +0000
commitd5363590597572228d4e0d0ae13f3469176ceb14 (patch)
treee3de46cbc89d82ca1f49843fe2e1e670db67795e /libgo/go/fmt/fmt_test.go
parentef0d4c4d9937276c8ff818ecb0b92925d322d3bd (diff)
downloadgcc-d5363590597572228d4e0d0ae13f3469176ceb14.tar.gz
libgo: Update to weekly.2011-12-06.
From-SVN: r182338
Diffstat (limited to 'libgo/go/fmt/fmt_test.go')
-rw-r--r--libgo/go/fmt/fmt_test.go64
1 files changed, 42 insertions, 22 deletions
diff --git a/libgo/go/fmt/fmt_test.go b/libgo/go/fmt/fmt_test.go
index 00aac798cb0..63c33380a25 100644
--- a/libgo/go/fmt/fmt_test.go
+++ b/libgo/go/fmt/fmt_test.go
@@ -12,6 +12,7 @@ import (
"runtime" // for the malloc count test only
"strings"
"testing"
+ "time"
)
type (
@@ -352,7 +353,7 @@ var fmttests = []struct {
{"%s", I(23), `<23>`},
{"%q", I(23), `"<23>"`},
{"%x", I(23), `3c32333e`},
- {"%d", I(23), `%!d(string=<23>)`},
+ {"%d", I(23), `23`}, // Stringer applies only to string formats.
// go syntax
{"%#v", A{1, 2, "a", []int{1, 2}}, `fmt_test.A{i:1, j:0x2, s:"a", x:[]int{1, 2}}`},
@@ -361,8 +362,8 @@ var fmttests = []struct {
{"%#v", make(chan int), "(chan int)(0xPTR)"},
{"%#v", uint64(1<<64 - 1), "0xffffffffffffffff"},
{"%#v", 1000000000, "1000000000"},
- {"%#v", map[string]int{"a": 1}, `map[string] int{"a":1}`},
- {"%#v", map[string]B{"a": {1, 2}}, `map[string] fmt_test.B{"a":fmt_test.B{I:1, j:2}}`},
+ {"%#v", map[string]int{"a": 1}, `map[string]int{"a":1}`},
+ {"%#v", map[string]B{"a": {1, 2}}, `map[string]fmt_test.B{"a":fmt_test.B{I:1, j:2}}`},
{"%#v", []string{"a", "b"}, `[]string{"a", "b"}`},
{"%#v", SI{}, `fmt_test.SI{I:interface {}(nil)}`},
{"%#v", []int(nil), `[]int(nil)`},
@@ -371,8 +372,8 @@ var fmttests = []struct {
{"%#v", &array, `&[5]int{1, 2, 3, 4, 5}`},
{"%#v", iarray, `[4]interface {}{1, "hello", 2.5, interface {}(nil)}`},
{"%#v", &iarray, `&[4]interface {}{1, "hello", 2.5, interface {}(nil)}`},
- {"%#v", map[int]byte(nil), `map[int] uint8(nil)`},
- {"%#v", map[int]byte{}, `map[int] uint8{}`},
+ {"%#v", map[int]byte(nil), `map[int]uint8(nil)`},
+ {"%#v", map[int]byte{}, `map[int]uint8{}`},
// slices with other formats
{"%#x", []int{1, 2, 15}, `[0x1 0x2 0xf]`},
@@ -430,6 +431,10 @@ var fmttests = []struct {
{"%p", make([]int, 1), "0xPTR"},
{"%p", 27, "%!p(int=27)"}, // not a pointer at all
+ // %d on Stringer should give integer if possible
+ {"%s", time.Time{}.Month(), "January"},
+ {"%d", time.Time{}.Month(), "1"},
+
// erroneous things
{"%s %", "hello", "hello %!(NOVERB)"},
{"%s %.2", "hello", "hello %!(NOVERB)"},
@@ -495,69 +500,84 @@ func BenchmarkSprintfPrefixedInt(b *testing.B) {
}
}
+func BenchmarkSprintfFloat(b *testing.B) {
+ for i := 0; i < b.N; i++ {
+ Sprintf("%g", 5.23184)
+ }
+}
+
func TestCountMallocs(t *testing.T) {
if testing.Short() {
return
}
+ const N = 100
runtime.UpdateMemStats()
mallocs := 0 - runtime.MemStats.Mallocs
- for i := 0; i < 100; i++ {
+ for i := 0; i < N; i++ {
Sprintf("")
}
runtime.UpdateMemStats()
mallocs += runtime.MemStats.Mallocs
- Printf("mallocs per Sprintf(\"\"): %d\n", mallocs/100)
+ Printf("mallocs per Sprintf(\"\"): %d\n", mallocs/N)
runtime.UpdateMemStats()
mallocs = 0 - runtime.MemStats.Mallocs
- for i := 0; i < 100; i++ {
+ for i := 0; i < N; i++ {
Sprintf("xxx")
}
runtime.UpdateMemStats()
mallocs += runtime.MemStats.Mallocs
- Printf("mallocs per Sprintf(\"xxx\"): %d\n", mallocs/100)
+ Printf("mallocs per Sprintf(\"xxx\"): %d\n", mallocs/N)
runtime.UpdateMemStats()
mallocs = 0 - runtime.MemStats.Mallocs
- for i := 0; i < 100; i++ {
+ for i := 0; i < N; i++ {
Sprintf("%x", i)
}
runtime.UpdateMemStats()
mallocs += runtime.MemStats.Mallocs
- Printf("mallocs per Sprintf(\"%%x\"): %d\n", mallocs/100)
+ Printf("mallocs per Sprintf(\"%%x\"): %d\n", mallocs/N)
runtime.UpdateMemStats()
mallocs = 0 - runtime.MemStats.Mallocs
- for i := 0; i < 100; i++ {
+ for i := 0; i < N; i++ {
Sprintf("%s", "hello")
}
runtime.UpdateMemStats()
mallocs += runtime.MemStats.Mallocs
- Printf("mallocs per Sprintf(\"%%s\"): %d\n", mallocs/100)
+ Printf("mallocs per Sprintf(\"%%s\"): %d\n", mallocs/N)
runtime.UpdateMemStats()
mallocs = 0 - runtime.MemStats.Mallocs
- for i := 0; i < 100; i++ {
+ for i := 0; i < N; i++ {
Sprintf("%x %x", i, i)
}
runtime.UpdateMemStats()
mallocs += runtime.MemStats.Mallocs
- Printf("mallocs per Sprintf(\"%%x %%x\"): %d\n", mallocs/100)
+ Printf("mallocs per Sprintf(\"%%x %%x\"): %d\n", mallocs/N)
+ runtime.UpdateMemStats()
+ mallocs = 0 - runtime.MemStats.Mallocs
+ for i := 0; i < N; i++ {
+ Sprintf("%g", 3.14159)
+ }
+ runtime.UpdateMemStats()
+ mallocs += runtime.MemStats.Mallocs
+ Printf("mallocs per Sprintf(\"%%g\"): %d\n", mallocs/N)
buf := new(bytes.Buffer)
runtime.UpdateMemStats()
mallocs = 0 - runtime.MemStats.Mallocs
- for i := 0; i < 100; i++ {
+ for i := 0; i < N; i++ {
buf.Reset()
Fprintf(buf, "%x %x %x", i, i, i)
}
runtime.UpdateMemStats()
mallocs += runtime.MemStats.Mallocs
- Printf("mallocs per Fprintf(buf, \"%%x %%x %%x\"): %d\n", mallocs/100)
+ Printf("mallocs per Fprintf(buf, \"%%x %%x %%x\"): %d\n", mallocs/N)
runtime.UpdateMemStats()
mallocs = 0 - runtime.MemStats.Mallocs
- for i := 0; i < 100; i++ {
+ for i := 0; i < N; i++ {
buf.Reset()
Fprintf(buf, "%s", "hello")
}
runtime.UpdateMemStats()
mallocs += runtime.MemStats.Mallocs
- Printf("mallocs per Fprintf(buf, \"%%s\"): %d\n", mallocs/100)
+ Printf("mallocs per Fprintf(buf, \"%%s\"): %d\n", mallocs/N)
}
type flagPrinter struct{}
@@ -772,9 +792,9 @@ var panictests = []struct {
out string
}{
// String
- {"%d", (*Panic)(nil), "<nil>"}, // nil pointer special case
- {"%d", Panic{io.ErrUnexpectedEOF}, "%d(PANIC=unexpected EOF)"},
- {"%d", Panic{3}, "%d(PANIC=3)"},
+ {"%s", (*Panic)(nil), "<nil>"}, // nil pointer special case
+ {"%s", Panic{io.ErrUnexpectedEOF}, "%s(PANIC=unexpected EOF)"},
+ {"%s", Panic{3}, "%s(PANIC=3)"},
// GoString
{"%#v", (*Panic)(nil), "<nil>"}, // nil pointer special case
{"%#v", Panic{io.ErrUnexpectedEOF}, "%v(PANIC=unexpected EOF)"},