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-rw-r--r--lib/timeutils/timeutils.c4
-rw-r--r--tests/pyb/modtime.py21
-rw-r--r--tests/pyb/modtime.py.exp12
3 files changed, 37 insertions, 0 deletions
diff --git a/lib/timeutils/timeutils.c b/lib/timeutils/timeutils.c
index 77e5f043f1..94bdada980 100644
--- a/lib/timeutils/timeutils.c
+++ b/lib/timeutils/timeutils.c
@@ -73,6 +73,10 @@ void timeutils_seconds_since_2000_to_struct_time(mp_uint_t t, timeutils_struct_t
mp_int_t days = seconds / 86400;
seconds %= 86400;
+ if (seconds < 0) {
+ seconds += 86400;
+ days -= 1;
+ }
tm->tm_hour = seconds / 3600;
tm->tm_min = seconds / 60 % 60;
tm->tm_sec = seconds % 60;
diff --git a/tests/pyb/modtime.py b/tests/pyb/modtime.py
index de6f8fbc6b..d45440a63c 100644
--- a/tests/pyb/modtime.py
+++ b/tests/pyb/modtime.py
@@ -35,4 +35,25 @@ def test():
yday += 1
wday = (wday + 1) % 7
+def spot_test(seconds, expected_time):
+ actual_time = time.localtime(seconds)
+ for i in range(len(actual_time)):
+ if actual_time[i] != expected_time[i]:
+ print("time.localtime(", seconds, ") returned", actual_time, "expecting", expected_time)
+ return
+ print("time.localtime(", seconds, ") returned", actual_time, "(pass)")
+
+
test()
+spot_test( 0, (2000, 1, 1, 0, 0, 0, 5, 1))
+spot_test( 1, (2000, 1, 1, 0, 0, 1, 5, 1))
+spot_test( 59, (2000, 1, 1, 0, 0, 59, 5, 1))
+spot_test( 60, (2000, 1, 1, 0, 1, 0, 5, 1))
+spot_test( 3599, (2000, 1, 1, 0, 59, 59, 5, 1))
+spot_test( 3600, (2000, 1, 1, 1, 0, 0, 5, 1))
+spot_test( -1, (1999, 12, 31, 23, 59, 59, 4, 365))
+spot_test( 447549467, (2014, 3, 7, 23, 17, 47, 4, 66))
+spot_test( -940984933, (1970, 3, 7, 23, 17, 47, 5, 66))
+spot_test(-1072915199, (1966, 1, 1, 0, 0, 1, 5, 1))
+spot_test(-1072915200, (1966, 1, 1, 0, 0, 0, 5, 1))
+spot_test(-1072915201, (1965, 12, 31, 23, 59, 59, 4, 365))
diff --git a/tests/pyb/modtime.py.exp b/tests/pyb/modtime.py.exp
index 0bf7c43f98..3e1f6e920c 100644
--- a/tests/pyb/modtime.py.exp
+++ b/tests/pyb/modtime.py.exp
@@ -32,3 +32,15 @@ Testing 2030
Testing 2031
Testing 2032
Testing 2033
+time.localtime( 0 ) returned (2000, 1, 1, 0, 0, 0, 5, 1) (pass)
+time.localtime( 1 ) returned (2000, 1, 1, 0, 0, 1, 5, 1) (pass)
+time.localtime( 59 ) returned (2000, 1, 1, 0, 0, 59, 5, 1) (pass)
+time.localtime( 60 ) returned (2000, 1, 1, 0, 1, 0, 5, 1) (pass)
+time.localtime( 3599 ) returned (2000, 1, 1, 0, 59, 59, 5, 1) (pass)
+time.localtime( 3600 ) returned (2000, 1, 1, 1, 0, 0, 5, 1) (pass)
+time.localtime( -1 ) returned (1999, 12, 31, 23, 59, 59, 4, 365) (pass)
+time.localtime( 447549467 ) returned (2014, 3, 7, 23, 17, 47, 4, 66) (pass)
+time.localtime( -940984933 ) returned (1970, 3, 7, 23, 17, 47, 5, 66) (pass)
+time.localtime( -1072915199 ) returned (1966, 1, 1, 0, 0, 1, 5, 1) (pass)
+time.localtime( -1072915200 ) returned (1966, 1, 1, 0, 0, 0, 5, 1) (pass)
+time.localtime( -1072915201 ) returned (1965, 12, 31, 23, 59, 59, 4, 365) (pass)