Add test for datetime paths

Author: harenbrs

test/test_datetime_paths.py

@@ -0,0 +1,33 @@
+import datetime as date
+
+import matplotlib.pyplot as plt
+from matplotlib import dates
+
+from helpers import assert_equality
+
+
+def plot():
+    fig = plt.figure()
+
+    times = [date.datetime(2020, 1, 1, 12, 00), date.datetime(2020, 1, 2, 12, 00)]
+    line = [2, 2]
+    upper = [3, 4]
+    lower = [1, 0]
+
+    plt.plot(times, line)
+    plt.fill_between(times, lower, upper)
+    ax = plt.gca()
+    ax.fmt_xdata = dates.DateFormatter("%d %b %Y %H:%M:%S")
+
+    return fig
+
+
+def test():
+    assert_equality(plot, __file__[:-3] + "_reference.tex")
+    return
+
+
+if __name__ == "__main__":
+    import helpers
+
+    helpers.compare_mpl_latex(plot)

test/test_datetime_paths_reference.tex

@@ -0,0 +1,32 @@
+\begin{tikzpicture}
+
+\definecolor{color0}{rgb}{0.12156862745098,0.466666666666667,0.705882352941177}
+
+\begin{axis}[
+date coordinates in=x,
+tick align=outside,
+tick pos=left,
+x grid style={white!69.01960784313725!black},
+xmin=2020-01-01 10:48, xmax=2020-01-02 13:12,
+xtick style={color=black},
+y grid style={white!69.01960784313725!black},
+ymin=-0.2, ymax=4.2,
+ytick style={color=black}
+]
+\path [fill=color0]
+(axis cs:2020-01-01 12:00:00+00:00,3)
+--(axis cs:2020-01-01 12:00:00+00:00,1)
+--(axis cs:2020-01-02 12:00:00+00:00,0)
+--(axis cs:2020-01-02 12:00:00+00:00,4)
+--(axis cs:2020-01-02 12:00:00+00:00,4)
+--(axis cs:2020-01-01 12:00:00+00:00,3)
+--cycle;
+
+\addplot [semithick, color0]
+table [header=false,col sep=comma] {%
+2020-01-01 12:00,2
+2020-01-02 12:00,2
+};
+\end{axis}
+
+\end{tikzpicture}