1 files changed, 341 insertions, 0 deletions
diff --git a/libgo/go/time/time_test.go b/libgo/go/time/time_test.go
new file mode 100644
index 000000000..c86bca1b4
--- /dev/null
+++ b/libgo/go/time/time_test.go
@@ -0,0 +1,341 @@
+// 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 time_test
+
+import (
+	"os"
+	"strings"
+	"testing"
+	"testing/quick"
+	. "time"
+)
+
+func init() {
+	// Force US Pacific time for daylight-savings
+	// tests below (localtests).  Needs to be set
+	// before the first call into the time library.
+	os.Setenv("TZ", "America/Los_Angeles")
+}
+
+type TimeTest struct {
+	seconds int64
+	golden  Time
+}
+
+var utctests = []TimeTest{
+	{0, Time{1970, 1, 1, 0, 0, 0, Thursday, 0, "UTC"}},
+	{1221681866, Time{2008, 9, 17, 20, 4, 26, Wednesday, 0, "UTC"}},
+	{-1221681866, Time{1931, 4, 16, 3, 55, 34, Thursday, 0, "UTC"}},
+	{-11644473600, Time{1601, 1, 1, 0, 0, 0, Monday, 0, "UTC"}},
+	{599529660, Time{1988, 12, 31, 0, 1, 0, Saturday, 0, "UTC"}},
+	{978220860, Time{2000, 12, 31, 0, 1, 0, Sunday, 0, "UTC"}},
+	{1e18, Time{31688740476, 10, 23, 1, 46, 40, Friday, 0, "UTC"}},
+	{-1e18, Time{-31688736537, 3, 10, 22, 13, 20, Tuesday, 0, "UTC"}},
+	{0x7fffffffffffffff, Time{292277026596, 12, 4, 15, 30, 7, Sunday, 0, "UTC"}},
+	{-0x8000000000000000, Time{-292277022657, 1, 27, 8, 29, 52, Sunday, 0, "UTC"}},
+}
+
+var localtests = []TimeTest{
+	{0, Time{1969, 12, 31, 16, 0, 0, Wednesday, -8 * 60 * 60, "PST"}},
+	{1221681866, Time{2008, 9, 17, 13, 4, 26, Wednesday, -7 * 60 * 60, "PDT"}},
+}
+
+func same(t, u *Time) bool {
+	return t.Year == u.Year &&
+		t.Month == u.Month &&
+		t.Day == u.Day &&
+		t.Hour == u.Hour &&
+		t.Minute == u.Minute &&
+		t.Second == u.Second &&
+		t.Weekday == u.Weekday &&
+		t.ZoneOffset == u.ZoneOffset &&
+		t.Zone == u.Zone
+}
+
+func TestSecondsToUTC(t *testing.T) {
+	for i := 0; i < len(utctests); i++ {
+		sec := utctests[i].seconds
+		golden := &utctests[i].golden
+		tm := SecondsToUTC(sec)
+		newsec := tm.Seconds()
+		if newsec != sec {
+			t.Errorf("SecondsToUTC(%d).Seconds() = %d", sec, newsec)
+		}
+		if !same(tm, golden) {
+			t.Errorf("SecondsToUTC(%d):", sec)
+			t.Errorf("  want=%+v", *golden)
+			t.Errorf("  have=%+v", *tm)
+		}
+	}
+}
+
+func TestSecondsToLocalTime(t *testing.T) {
+	for i := 0; i < len(localtests); i++ {
+		sec := localtests[i].seconds
+		golden := &localtests[i].golden
+		tm := SecondsToLocalTime(sec)
+		newsec := tm.Seconds()
+		if newsec != sec {
+			t.Errorf("SecondsToLocalTime(%d).Seconds() = %d", sec, newsec)
+		}
+		if !same(tm, golden) {
+			t.Errorf("SecondsToLocalTime(%d):", sec)
+			t.Errorf("  want=%+v", *golden)
+			t.Errorf("  have=%+v", *tm)
+		}
+	}
+}
+
+func TestSecondsToUTCAndBack(t *testing.T) {
+	f := func(sec int64) bool { return SecondsToUTC(sec).Seconds() == sec }
+	f32 := func(sec int32) bool { return f(int64(sec)) }
+	cfg := &quick.Config{MaxCount: 10000}
+
+	// Try a reasonable date first, then the huge ones.
+	if err := quick.Check(f32, cfg); err != nil {
+		t.Fatal(err)
+	}
+	if err := quick.Check(f, cfg); err != nil {
+		t.Fatal(err)
+	}
+}
+
+type TimeFormatTest struct {
+	time           Time
+	formattedValue string
+}
+
+var rfc3339Formats = []TimeFormatTest{
+	{Time{2008, 9, 17, 20, 4, 26, Wednesday, 0, "UTC"}, "2008-09-17T20:04:26Z"},
+	{Time{1994, 9, 17, 20, 4, 26, Wednesday, -18000, "EST"}, "1994-09-17T20:04:26-05:00"},
+	{Time{2000, 12, 26, 1, 15, 6, Wednesday, 15600, "OTO"}, "2000-12-26T01:15:06+04:20"},
+}
+
+func TestRFC3339Conversion(t *testing.T) {
+	for _, f := range rfc3339Formats {
+		if f.time.Format(RFC3339) != f.formattedValue {
+			t.Error("RFC3339:")
+			t.Errorf("  want=%+v", f.formattedValue)
+			t.Errorf("  have=%+v", f.time.Format(RFC3339))
+		}
+	}
+}
+
+type FormatTest struct {
+	name   string
+	format string
+	result string
+}
+
+var formatTests = []FormatTest{
+	{"ANSIC", ANSIC, "Thu Feb  4 21:00:57 2010"},
+	{"UnixDate", UnixDate, "Thu Feb  4 21:00:57 PST 2010"},
+	{"RubyDate", RubyDate, "Thu Feb 04 21:00:57 -0800 2010"},
+	{"RFC822", RFC822, "04 Feb 10 2100 PST"},
+	{"RFC850", RFC850, "Thursday, 04-Feb-10 21:00:57 PST"},
+	{"RFC1123", RFC1123, "Thu, 04 Feb 2010 21:00:57 PST"},
+	{"RFC3339", RFC3339, "2010-02-04T21:00:57-08:00"},
+	{"Kitchen", Kitchen, "9:00PM"},
+	{"am/pm", "3pm", "9pm"},
+	{"AM/PM", "3PM", "9PM"},
+}
+
+func TestFormat(t *testing.T) {
+	// The numeric time represents Thu Feb  4 21:00:57 PST 2010
+	time := SecondsToLocalTime(1265346057)
+	for _, test := range formatTests {
+		result := time.Format(test.format)
+		if result != test.result {
+			t.Errorf("%s expected %q got %q", test.name, test.result, result)
+		}
+	}
+}
+
+type ParseTest struct {
+	name     string
+	format   string
+	value    string
+	hasTZ    bool  // contains a time zone
+	hasWD    bool  // contains a weekday
+	yearSign int64 // sign of year
+}
+
+var parseTests = []ParseTest{
+	{"ANSIC", ANSIC, "Thu Feb  4 21:00:57 2010", false, true, 1},
+	{"UnixDate", UnixDate, "Thu Feb  4 21:00:57 PST 2010", true, true, 1},
+	{"RubyDate", RubyDate, "Thu Feb 04 21:00:57 -0800 2010", true, true, 1},
+	{"RFC850", RFC850, "Thursday, 04-Feb-10 21:00:57 PST", true, true, 1},
+	{"RFC1123", RFC1123, "Thu, 04 Feb 2010 21:00:57 PST", true, true, 1},
+	{"RFC3339", RFC3339, "2010-02-04T21:00:57-08:00", true, false, 1},
+	{"custom: \"2006-01-02 15:04:05-07\"", "2006-01-02 15:04:05-07", "2010-02-04 21:00:57-08", true, false, 1},
+	// Amount of white space should not matter.
+	{"ANSIC", ANSIC, "Thu Feb 4 21:00:57 2010", false, true, 1},
+	{"ANSIC", ANSIC, "Thu      Feb     4     21:00:57     2010", false, true, 1},
+}
+
+func TestParse(t *testing.T) {
+	for _, test := range parseTests {
+		time, err := Parse(test.format, test.value)
+		if err != nil {
+			t.Errorf("%s error: %v", test.name, err)
+		} else {
+			checkTime(time, &test, t)
+		}
+	}
+}
+
+var rubyTests = []ParseTest{
+	{"RubyDate", RubyDate, "Thu Feb 04 21:00:57 -0800 2010", true, true, 1},
+	// Ignore the time zone in the test. If it parses, it'll be OK.
+	{"RubyDate", RubyDate, "Thu Feb 04 21:00:57 -0000 2010", false, true, 1},
+	{"RubyDate", RubyDate, "Thu Feb 04 21:00:57 +0000 2010", false, true, 1},
+	{"RubyDate", RubyDate, "Thu Feb 04 21:00:57 +1130 2010", false, true, 1},
+}
+
+// Problematic time zone format needs special tests.
+func TestRubyParse(t *testing.T) {
+	for _, test := range rubyTests {
+		time, err := Parse(test.format, test.value)
+		if err != nil {
+			t.Errorf("%s error: %v", test.name, err)
+		} else {
+			checkTime(time, &test, t)
+		}
+	}
+}
+
+func checkTime(time *Time, test *ParseTest, t *testing.T) {
+	// The time should be Thu Feb  4 21:00:57 PST 2010
+	if test.yearSign*time.Year != 2010 {
+		t.Errorf("%s: bad year: %d not %d", test.name, time.Year, 2010)
+	}
+	if time.Month != 2 {
+		t.Errorf("%s: bad month: %d not %d", test.name, time.Month, 2)
+	}
+	if time.Day != 4 {
+		t.Errorf("%s: bad day: %d not %d", test.name, time.Day, 4)
+	}
+	if time.Hour != 21 {
+		t.Errorf("%s: bad hour: %d not %d", test.name, time.Hour, 21)
+	}
+	if time.Minute != 0 {
+		t.Errorf("%s: bad minute: %d not %d", test.name, time.Minute, 0)
+	}
+	if time.Second != 57 {
+		t.Errorf("%s: bad second: %d not %d", test.name, time.Second, 57)
+	}
+	if test.hasTZ && time.ZoneOffset != -28800 {
+		t.Errorf("%s: bad tz offset: %d not %d", test.name, time.ZoneOffset, -28800)
+	}
+	if test.hasWD && time.Weekday != 4 {
+		t.Errorf("%s: bad weekday: %d not %d", test.name, time.Weekday, 4)
+	}
+}
+
+func TestFormatAndParse(t *testing.T) {
+	const fmt = "Mon MST " + RFC3339 // all fields
+	f := func(sec int64) bool {
+		t1 := SecondsToLocalTime(sec)
+		if t1.Year < 1000 || t1.Year > 9999 {
+			// not required to work
+			return true
+		}
+		t2, err := Parse(fmt, t1.Format(fmt))
+		if err != nil {
+			t.Errorf("error: %s", err)
+			return false
+		}
+		if !same(t1, t2) {
+			t.Errorf("different: %q %q", t1, t2)
+			return false
+		}
+		return true
+	}
+	f32 := func(sec int32) bool { return f(int64(sec)) }
+	cfg := &quick.Config{MaxCount: 10000}
+
+	// Try a reasonable date first, then the huge ones.
+	if err := quick.Check(f32, cfg); err != nil {
+		t.Fatal(err)
+	}
+	if err := quick.Check(f, cfg); err != nil {
+		t.Fatal(err)
+	}
+}
+
+type ParseErrorTest struct {
+	format string
+	value  string
+	expect string // must appear within the error
+}
+
+var parseErrorTests = []ParseErrorTest{
+	{ANSIC, "Feb  4 21:00:60 2010", "parse"}, // cannot parse Feb as Mon
+	{ANSIC, "Thu Feb  4 21:00:57 @2010", "parse"},
+	{ANSIC, "Thu Feb  4 21:00:60 2010", "second out of range"},
+	{ANSIC, "Thu Feb  4 21:61:57 2010", "minute out of range"},
+	{ANSIC, "Thu Feb  4 24:00:60 2010", "hour out of range"},
+}
+
+func TestParseErrors(t *testing.T) {
+	for _, test := range parseErrorTests {
+		_, err := Parse(test.format, test.value)
+		if err == nil {
+			t.Errorf("expected error for %q %q", test.format, test.value)
+		} else if strings.Index(err.String(), test.expect) < 0 {
+			t.Errorf("expected error with %q for %q %q; got %s", test.expect, test.format, test.value, err)
+		}
+	}
+}
+
+// Check that a time without a Zone still produces a (numeric) time zone
+// when formatted with MST as a requested zone.
+func TestMissingZone(t *testing.T) {
+	time, err := Parse(RubyDate, "Tue Feb 02 16:10:03 -0500 2006")
+	if err != nil {
+		t.Fatal("error parsing date:", err)
+	}
+	expect := "Tue Feb  2 16:10:03 -0500 2006" // -0500 not EST
+	str := time.Format(UnixDate)               // uses MST as its time zone
+	if str != expect {
+		t.Errorf("expected %q got %q", expect, str)
+	}
+}
+
+func TestMinutesInTimeZone(t *testing.T) {
+	time, err := Parse(RubyDate, "Mon Jan 02 15:04:05 +0123 2006")
+	if err != nil {
+		t.Fatal("error parsing date:", err)
+	}
+	expected := (1*60 + 23) * 60
+	if time.ZoneOffset != expected {
+		t.Errorf("ZoneOffset incorrect, expected %d got %d", expected, time.ZoneOffset)
+	}
+}
+
+func BenchmarkSeconds(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		Seconds()
+	}
+}
+
+func BenchmarkNanoseconds(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		Nanoseconds()
+	}
+}
+
+func BenchmarkFormat(b *testing.B) {
+	time := SecondsToLocalTime(1265346057)
+	for i := 0; i < b.N; i++ {
+		time.Format("Mon Jan  2 15:04:05 2006")
+	}
+}
+
+func BenchmarkParse(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		Parse(ANSIC, "Mon Jan  2 15:04:05 2006")
+	}
+}