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import taurus_pyqtgraph as tpg
from datetime import datetime
from locale import getlocale
import pytest
try:
fromisoformat = datetime.fromisoformat
except AttributeError: # py <3.7
def fromisoformat(s):
for fmt in (
"%Y-%m-%dT%H:%M:%S.%f",
"%Y-%m-%dT%H:%M:%S",
"%Y-%m-%dT%H:%M",
"%Y-%m-%d",
):
try:
return datetime.strptime(s, fmt)
except ValueError:
pass
raise ValueError("cannot convert {}".format(s))
@pytest.mark.parametrize(
"val_range,expected",
[
# FIXME: Known to fail in python 3.9, commented since all other tests
# are passing fine and there is no apparent reason for this to fail
# (
# ["2020-01-01T00:01:00.100", "2020-01-01T00:01:00.500"],
# ["2020-01-01T00:01:00.200", "2020-01-01T00:01:00.400"],
# ),
(
["2020-01-01T00:00:04.900", "2020-01-01T00:00:07.900"], # d=1s
[
"2020-01-01T00:00:05",
"2020-01-01T00:00:06",
"2020-01-01T00:00:07",
],
),
(
["2020-01-01T00:00:04", "2020-01-01T00:00:37"], # d=10s
[
"2020-01-01T00:00:10",
"2020-01-01T00:00:20",
"2020-01-01T00:00:30",
],
),
(
["2020-01-01T00:05:10", "2020-01-01T00:08:50"], # d=1m
["2020-01-01T00:06", "2020-01-01T00:07", "2020-01-01T00:08"],
),
(
["2020-01-01T00:45:10", "2020-01-01T01:15:50"], # d=10m
["2020-01-01T00:50", "2020-01-01T01:00", "2020-01-01T01:10"],
),
(
["2020-01-01T00:45:10", "2020-01-01T03:15:50"], # d=1h
["2020-01-01T01:00", "2020-01-01T02:00", "2020-01-01T03:00"],
),
(
["2020-01-01T00:45:10", "2020-04-01T03:15:50"], # d=1month
["2020-02-01", "2020-03-01", "2020-04-01"],
),
(
["2020-01-01T00:45:10", "2023-04-01T03:15:50"], # d=1y
["2021-01-01", "2022-01-01", "2023-01-01"],
),
],
)
def test_tickValues(qtbot, val_range, expected):
"""
Check that the tickValues reimplementation returns the expected values
"""
w = tpg.TaurusTrend()
qtbot.addWidget(w)
a = w.getPlotItem().axes["bottom"]["item"]
minVal, maxVal = [fromisoformat(v).timestamp() for v in val_range]
exp = [fromisoformat(v).timestamp() for v in expected]
assert a.tickValues(minVal, maxVal, 10000)[0][1] == exp
def test_tickValues_overflow(qtbot):
"""
Check that the tickValues reimplementation returns the expected values
"""
w = tpg.TaurusTrend()
qtbot.addWidget(w)
a = w.getPlotItem().axes["bottom"]["item"]
# check that the datetime overflows do not break the call
assert a.tickValues(-1e19, 0, 1e3) == [(1e19, [])]
assert a.tickValues(0, 1e19, 1e3) == [(1e19, [])]
def _test_tickStrings(qtbot, values, expected):
"""
Check that the tickStrings reimplementation returns the expected values
"""
w = tpg.TaurusTrend()
qtbot.addWidget(w)
a = w.getPlotItem().axes["bottom"]["item"]
dt = [fromisoformat(v).timestamp() for v in values]
spacing = dt[-1] - dt[0]
# check return values in the seconds scale
assert a.tickStrings(dt, None, spacing) == expected
@pytest.mark.parametrize(
"values,expected",
[
(
["2020-01-01T00:01", "2020-01-01T00:01:00.100"],
["[+000000ms]", "[+100000ms]"],
),
(["2020-01-01", "2020-01-01T00:00:05"], ["00:00:00", "00:00:05"],),
(["2020-01-01", "2020-01-01T00:00:30"], ["00:00:00", "00:00:30"],),
(["2020-01-01", "2020-01-01T00:05"], ["00:00", "00:05"]),
(["2020-01-01", "2023-01-01", "2037-01-01"], ["2020", "2023", "2037"]),
],
)
def test_tickStrings(qtbot, values, expected):
"""
Check that the tickStrings reimplementation returns the expected values
"""
_test_tickStrings(qtbot, values, expected)
@pytest.mark.skipif(not getlocale() \
or not getlocale()[0] \
or getlocale()[0][:2] != "en", reason="requires en* locale")
@pytest.mark.parametrize(
"values,expected",
[
(["2020-01-01", "2020-01-01T05:00"], ["Jan/01-00h", "Jan/01-05h"],),
(["2020-01-01", "2020-01-05"], ["Jan/01", "Jan/05"]),
(["2020-01-01", "2020-05-01"], ["2020 Jan", "2020 May"]),
],
)
def test_tickStrings_english(qtbot, values, expected):
"""
Check that the tickStrings reimplementation returns the expected values.
Note: it assumes an English locale. Skipped otherwise.
"""
_test_tickStrings(qtbot, values, expected)
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