Fix: matplotlib in windows CI

Author: janpipek

tests/plotting/shared.py

@@ -8,7 +8,7 @@
     from physt.histogram_nd import Histogram2D
 
 
-class AbstractTest(ABC):
+class AbstractPlottingTest(ABC):
     module: Any
     function_name: str
 
@@ -21,7 +21,7 @@ def assert_valid_output(self, output) -> None:
         ...
 
 
-class AbstractTest1D(AbstractTest, ABC):
+class AbstractTest1D(AbstractPlottingTest, ABC):
     def test_2d_fail(self, simple_h2: "Histogram2D", default_kwargs):
         with pytest.raises(TypeError):
             self.method(simple_h2, **default_kwargs)
@@ -30,7 +30,7 @@ def test_simple_does_not_fail(self, simple_h1, default_kwargs):
         _ = self.method(simple_h1, **default_kwargs)
 
 
-class AbstractTest2D(AbstractTest, ABC):
+class AbstractTest2D(AbstractPlottingTest, ABC):
     def test_1d_fail(self, simple_h1: "Histogram1D", default_kwargs):
         with pytest.raises(TypeError):
             self.method(simple_h1, **default_kwargs)

tests/plotting/test_matplotlib.py

@@ -7,10 +7,17 @@
 
 from physt.plotting import matplotlib
 
-from .shared import AbstractTest, AbstractTest1D, AbstractTest2D
+from .shared import AbstractPlottingTest, AbstractTest1D, AbstractTest2D
 
 
-class _TestBase(AbstractTest, ABC):
+@pytest.fixture(autouse=True)
+def setup_matplotlib():
+    import matplotlib
+
+    matplotlib.use("Agg")
+
+
+class _TestBase(AbstractPlottingTest, ABC):
     module = matplotlib
 
     def assert_valid_output(self, output) -> None:

tests/plotting/test_plotly.py

@@ -8,15 +8,15 @@
 
 from physt.plotting import plotly
 
-from .shared import AbstractTest, AbstractTest1D, AbstractTest2D
+from .shared import AbstractPlottingTest, AbstractTest1D, AbstractTest2D
 
 
 @pytest.fixture()
 def default_kwargs() -> Dict[str, Any]:
     return {}
 
 
-class _TestBase(AbstractTest, ABC):
+class _TestBase(AbstractPlottingTest, ABC):
     module = plotly
 
     def assert_valid_output(self, output):

tests/plotting/test_vega.py

@@ -6,14 +6,14 @@
 
 from physt.plotting import vega
 
-from .shared import AbstractTest, AbstractTest1D, AbstractTest2D
+from .shared import AbstractPlottingTest, AbstractTest1D, AbstractTest2D
 
 if TYPE_CHECKING:
     from physt.histogram1d import Histogram1D
     from physt.histogram_nd import Histogram2D
 
 
-class _TestBase(AbstractTest, ABC):
+class _TestBase(AbstractPlottingTest, ABC):
     module = vega
 
     def assert_valid_output(self, output):