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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:23:18 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:23:18 +0000 |
commit | 43a123c1ae6613b3efeed291fa552ecd909d3acf (patch) | |
tree | fd92518b7024bc74031f78a1cf9e454b65e73665 /src/time/mono_test.go | |
parent | Initial commit. (diff) | |
download | golang-1.20-43a123c1ae6613b3efeed291fa552ecd909d3acf.tar.xz golang-1.20-43a123c1ae6613b3efeed291fa552ecd909d3acf.zip |
Adding upstream version 1.20.14.upstream/1.20.14upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/time/mono_test.go')
-rw-r--r-- | src/time/mono_test.go | 278 |
1 files changed, 278 insertions, 0 deletions
diff --git a/src/time/mono_test.go b/src/time/mono_test.go new file mode 100644 index 0000000..cdbb11e --- /dev/null +++ b/src/time/mono_test.go @@ -0,0 +1,278 @@ +// Copyright 2017 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 ( + "strings" + "testing" + . "time" +) + +func TestHasMonotonicClock(t *testing.T) { + yes := func(expr string, tt Time) { + if GetMono(&tt) == 0 { + t.Errorf("%s: missing monotonic clock reading", expr) + } + } + no := func(expr string, tt Time) { + if GetMono(&tt) != 0 { + t.Errorf("%s: unexpected monotonic clock reading", expr) + } + } + + yes("<-After(1)", <-After(1)) + ticker := NewTicker(1) + yes("<-Tick(1)", <-ticker.C) + ticker.Stop() + no("Date(2009, 11, 23, 0, 0, 0, 0, UTC)", Date(2009, 11, 23, 0, 0, 0, 0, UTC)) + tp, _ := Parse(UnixDate, "Sat Mar 7 11:06:39 PST 2015") + no(`Parse(UnixDate, "Sat Mar 7 11:06:39 PST 2015")`, tp) + no("Unix(1486057371, 0)", Unix(1486057371, 0)) + + yes("Now()", Now()) + + tu := Unix(1486057371, 0) + tm := tu + SetMono(&tm, 123456) + no("tu", tu) + yes("tm", tm) + + no("tu.Add(1)", tu.Add(1)) + no("tu.In(UTC)", tu.In(UTC)) + no("tu.AddDate(1, 1, 1)", tu.AddDate(1, 1, 1)) + no("tu.AddDate(0, 0, 0)", tu.AddDate(0, 0, 0)) + no("tu.Local()", tu.Local()) + no("tu.UTC()", tu.UTC()) + no("tu.Round(2)", tu.Round(2)) + no("tu.Truncate(2)", tu.Truncate(2)) + + yes("tm.Add(1)", tm.Add(1)) + no("tm.AddDate(1, 1, 1)", tm.AddDate(1, 1, 1)) + no("tm.AddDate(0, 0, 0)", tm.AddDate(0, 0, 0)) + no("tm.In(UTC)", tm.In(UTC)) + no("tm.Local()", tm.Local()) + no("tm.UTC()", tm.UTC()) + no("tm.Round(2)", tm.Round(2)) + no("tm.Truncate(2)", tm.Truncate(2)) +} + +func TestMonotonicAdd(t *testing.T) { + tm := Unix(1486057371, 123456) + SetMono(&tm, 123456789012345) + + t2 := tm.Add(1e8) + if t2.Nanosecond() != 100123456 { + t.Errorf("t2.Nanosecond() = %d, want 100123456", t2.Nanosecond()) + } + if GetMono(&t2) != 123456889012345 { + t.Errorf("t2.mono = %d, want 123456889012345", GetMono(&t2)) + } + + t3 := tm.Add(-9e18) // wall now out of range + if t3.Nanosecond() != 123456 { + t.Errorf("t3.Nanosecond() = %d, want 123456", t3.Nanosecond()) + } + if GetMono(&t3) != 0 { + t.Errorf("t3.mono = %d, want 0 (wall time out of range for monotonic reading)", GetMono(&t3)) + } + + t4 := tm.Add(+9e18) // wall now out of range + if t4.Nanosecond() != 123456 { + t.Errorf("t4.Nanosecond() = %d, want 123456", t4.Nanosecond()) + } + if GetMono(&t4) != 0 { + t.Errorf("t4.mono = %d, want 0 (wall time out of range for monotonic reading)", GetMono(&t4)) + } + + tn := Now() + tn1 := tn.Add(1 * Hour) + Sleep(100 * Millisecond) + d := Until(tn1) + if d < 59*Minute { + t.Errorf("Until(Now().Add(1*Hour)) = %v, wanted at least 59m", d) + } + now := Now() + if now.After(tn1) { + t.Errorf("Now().After(Now().Add(1*Hour)) = true, want false") + } + if !tn1.After(now) { + t.Errorf("Now().Add(1*Hour).After(now) = false, want true") + } + if tn1.Before(now) { + t.Errorf("Now().Add(1*Hour).Before(Now()) = true, want false") + } + if !now.Before(tn1) { + t.Errorf("Now().Before(Now().Add(1*Hour)) = false, want true") + } + if got, want := now.Compare(tn1), -1; got != want { + t.Errorf("Now().Compare(Now().Add(1*Hour)) = %d, want %d", got, want) + } + if got, want := tn1.Compare(now), 1; got != want { + t.Errorf("Now().Add(1*Hour).Compare(Now()) = %d, want %d", got, want) + } +} + +func TestMonotonicSub(t *testing.T) { + t1 := Unix(1483228799, 995e6) + SetMono(&t1, 123456789012345) + + t2 := Unix(1483228799, 5e6) + SetMono(&t2, 123456789012345+10e6) + + t3 := Unix(1483228799, 995e6) + SetMono(&t3, 123456789012345+1e9) + + t1w := t1.AddDate(0, 0, 0) + if GetMono(&t1w) != 0 { + t.Fatalf("AddDate didn't strip monotonic clock reading") + } + t2w := t2.AddDate(0, 0, 0) + if GetMono(&t2w) != 0 { + t.Fatalf("AddDate didn't strip monotonic clock reading") + } + t3w := t3.AddDate(0, 0, 0) + if GetMono(&t3w) != 0 { + t.Fatalf("AddDate didn't strip monotonic clock reading") + } + + sub := func(txs, tys string, tx, txw, ty, tyw Time, d, dw Duration) { + check := func(expr string, d, want Duration) { + if d != want { + t.Errorf("%s = %v, want %v", expr, d, want) + } + } + check(txs+".Sub("+tys+")", tx.Sub(ty), d) + check(txs+"w.Sub("+tys+")", txw.Sub(ty), dw) + check(txs+".Sub("+tys+"w)", tx.Sub(tyw), dw) + check(txs+"w.Sub("+tys+"w)", txw.Sub(tyw), dw) + } + sub("t1", "t1", t1, t1w, t1, t1w, 0, 0) + sub("t1", "t2", t1, t1w, t2, t2w, -10*Millisecond, 990*Millisecond) + sub("t1", "t3", t1, t1w, t3, t3w, -1000*Millisecond, 0) + + sub("t2", "t1", t2, t2w, t1, t1w, 10*Millisecond, -990*Millisecond) + sub("t2", "t2", t2, t2w, t2, t2w, 0, 0) + sub("t2", "t3", t2, t2w, t3, t3w, -990*Millisecond, -990*Millisecond) + + sub("t3", "t1", t3, t3w, t1, t1w, 1000*Millisecond, 0) + sub("t3", "t2", t3, t3w, t2, t2w, 990*Millisecond, 990*Millisecond) + sub("t3", "t3", t3, t3w, t3, t3w, 0, 0) + + cmp := func(txs, tys string, tx, txw, ty, tyw Time, c, cw int) { + check := func(expr string, b, want any) { + if b != want { + t.Errorf("%s = %v, want %v", expr, b, want) + } + } + check(txs+".After("+tys+")", tx.After(ty), c > 0) + check(txs+"w.After("+tys+")", txw.After(ty), cw > 0) + check(txs+".After("+tys+"w)", tx.After(tyw), cw > 0) + check(txs+"w.After("+tys+"w)", txw.After(tyw), cw > 0) + + check(txs+".Before("+tys+")", tx.Before(ty), c < 0) + check(txs+"w.Before("+tys+")", txw.Before(ty), cw < 0) + check(txs+".Before("+tys+"w)", tx.Before(tyw), cw < 0) + check(txs+"w.Before("+tys+"w)", txw.Before(tyw), cw < 0) + + check(txs+".Equal("+tys+")", tx.Equal(ty), c == 0) + check(txs+"w.Equal("+tys+")", txw.Equal(ty), cw == 0) + check(txs+".Equal("+tys+"w)", tx.Equal(tyw), cw == 0) + check(txs+"w.Equal("+tys+"w)", txw.Equal(tyw), cw == 0) + + check(txs+".Compare("+tys+")", tx.Compare(ty), c) + check(txs+"w.Compare("+tys+")", txw.Compare(ty), cw) + check(txs+".Compare("+tys+"w)", tx.Compare(tyw), cw) + check(txs+"w.Compare("+tys+"w)", txw.Compare(tyw), cw) + } + + cmp("t1", "t1", t1, t1w, t1, t1w, 0, 0) + cmp("t1", "t2", t1, t1w, t2, t2w, -1, +1) + cmp("t1", "t3", t1, t1w, t3, t3w, -1, 0) + + cmp("t2", "t1", t2, t2w, t1, t1w, +1, -1) + cmp("t2", "t2", t2, t2w, t2, t2w, 0, 0) + cmp("t2", "t3", t2, t2w, t3, t3w, -1, -1) + + cmp("t3", "t1", t3, t3w, t1, t1w, +1, 0) + cmp("t3", "t2", t3, t3w, t2, t2w, +1, +1) + cmp("t3", "t3", t3, t3w, t3, t3w, 0, 0) +} + +func TestMonotonicOverflow(t *testing.T) { + t1 := Now().Add(-30 * Second) + d := Until(t1) + if d < -35*Second || -30*Second < d { + t.Errorf("Until(Now().Add(-30s)) = %v, want roughly -30s (-35s to -30s)", d) + } + + t1 = Now().Add(30 * Second) + d = Until(t1) + if d < 25*Second || 30*Second < d { + t.Errorf("Until(Now().Add(-30s)) = %v, want roughly 30s (25s to 30s)", d) + } + + t0 := Now() + t1 = t0.Add(Duration(1<<63 - 1)) + if GetMono(&t1) != 0 { + t.Errorf("Now().Add(maxDuration) has monotonic clock reading (%v => %v %d %d)", t0.String(), t1.String(), t0.Unix(), t1.Unix()) + } + t2 := t1.Add(-Duration(1<<63 - 1)) + d = Since(t2) + if d < -10*Second || 10*Second < d { + t.Errorf("Since(Now().Add(max).Add(-max)) = %v, want [-10s, 10s]", d) + } + + t0 = Now() + t1 = t0.Add(1 * Hour) + Sleep(100 * Millisecond) + t2 = Now().Add(-5 * Second) + if !t1.After(t2) { + t.Errorf("Now().Add(1*Hour).After(Now().Add(-5*Second)) = false, want true\nt1=%v\nt2=%v", t1, t2) + } + if t2.After(t1) { + t.Errorf("Now().Add(-5*Second).After(Now().Add(1*Hour)) = true, want false\nt1=%v\nt2=%v", t1, t2) + } + if t1.Before(t2) { + t.Errorf("Now().Add(1*Hour).Before(Now().Add(-5*Second)) = true, want false\nt1=%v\nt2=%v", t1, t2) + } + if !t2.Before(t1) { + t.Errorf("Now().Add(-5*Second).Before(Now().Add(1*Hour)) = false, want true\nt1=%v\nt2=%v", t1, t2) + } + if got, want := t1.Compare(t2), 1; got != want { + t.Errorf("Now().Add(1*Hour).Compare(Now().Add(-5*Second)) = %d, want %d\nt1=%v\nt2=%v", got, want, t1, t2) + } + if got, want := t2.Compare(t1), -1; got != want { + t.Errorf("Now().Add(-5*Second).Before(Now().Add(1*Hour)) = %d, want %d\nt1=%v\nt2=%v", got, want, t1, t2) + } +} + +var monotonicStringTests = []struct { + mono int64 + want string +}{ + {0, "m=+0.000000000"}, + {123456789, "m=+0.123456789"}, + {-123456789, "m=-0.123456789"}, + {123456789000, "m=+123.456789000"}, + {-123456789000, "m=-123.456789000"}, + {9e18, "m=+9000000000.000000000"}, + {-9e18, "m=-9000000000.000000000"}, + {-1 << 63, "m=-9223372036.854775808"}, +} + +func TestMonotonicString(t *testing.T) { + t1 := Now() + t.Logf("Now() = %v", t1) + + for _, tt := range monotonicStringTests { + t1 := Now() + SetMono(&t1, tt.mono) + s := t1.String() + got := s[strings.LastIndex(s, " ")+1:] + if got != tt.want { + t.Errorf("with mono=%d: got %q; want %q", tt.mono, got, tt.want) + } + } +} |