chore: import upstream snapshot with attribution

2026-07-13 12:32:53 +08:00
commit 2a16f2f53b
247 changed files with 69150 additions and 0 deletions
@@ -0,0 +1,70 @@
+"""
+Limited tests of the visualization module. Right now it just makes
+sure that passing custom Axes works.
+
+"""
+
+import pytest
+
+from mpmath import fp, mp
+
+
+def test_axes():
+    try:
+        import matplotlib
+        version = matplotlib.__version__.split("-")[0]
+        version = version.split(".")[:2]
+        if [int(_) for _ in version] < [0,99]:
+            raise ImportError
+        import pylab
+    except ImportError:
+        pytest.skip("\nSkipping test (pylab not available or too old version)\n")
+    fig = pylab.figure()
+    axes = fig.add_subplot(111)
+    for ctx in [mp, fp]:
+        ctx.plot(lambda x: x**2, [0, 3], axes=axes)
+        assert axes.get_xlabel() == 'x'
+        assert axes.get_ylabel() == 'f(x)'
+
+    fig = pylab.figure()
+    axes = fig.add_subplot(111)
+    for ctx in [mp, fp]:
+        ctx.cplot(lambda z: z, [-2, 2], [-10, 10], axes=axes)
+    assert axes.get_xlabel() == 'Re(z)'
+    assert axes.get_ylabel() == 'Im(z)'
+
+
+def test_issue_1007():
+    # plot(), cplot() and splot() must not leave a stale figure open
+    # when the user-supplied function raises an unexpected exception;
+    # otherwise that blank figure lingers and is shown on the next call.
+    try:
+        import matplotlib
+        version = matplotlib.__version__.split("-")[0]
+        version = version.split(".")[:2]
+        if [int(_) for _ in version] < [0,99]:
+            raise ImportError
+        import pylab
+    except ImportError:
+        pytest.skip("\nSkipping test (pylab not available or too old version)\n")
+
+    class Boom(Exception):
+        pass
+
+    def bad(*args):
+        # An error that is not in plot_ignore, so it propagates out of
+        # plot()/cplot()/splot() instead of being silently skipped.
+        raise Boom
+
+    for ctx in [mp, fp]:
+        pylab.close("all")
+        pytest.raises(Boom, lambda: ctx.plot(bad, [0, 2]))
+        assert pylab.get_fignums() == []
+
+        pylab.close("all")
+        pytest.raises(Boom, lambda: ctx.cplot(bad, [-2, 2], [-2, 2]))
+        assert pylab.get_fignums() == []
+
+        pylab.close("all")
+        pytest.raises(Boom, lambda: ctx.splot(bad, [-1, 1], [-1, 1]))
+        assert pylab.get_fignums() == []