Fix matplotlib and cartopy tests (#49)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

.github/workflows/build.yml

@@ -288,7 +288,6 @@ jobs:
             --dist-dir=./dist/ \
             --runner=${{ matrix.test-config.runner }} \
             --rt ${{ matrix.test-config.runtime }} \
-            -k "not triangulation and not cartopy" \
             packages
   release:
     runs-on: ubuntu-latest

packages/Cartopy/meta.yaml

@@ -24,6 +24,7 @@ requirements:
     - matplotlib
     - scipy
 
+
 build:
   vendor-sharedlib: true
   script: |

packages/Cartopy/test_cartopy.py

@@ -3,6 +3,8 @@
 import pytest
 from pytest_pyodide import run_in_pyodide
 
+from conftest import package_is_built
+
 DECORATORS = [
     pytest.mark.xfail_browsers(node="No supported matplotlib backends on node"),
     pytest.mark.skip_refcount_check,
@@ -25,22 +27,28 @@ def test_imports(selenium):
 
 
 @matplotlib_test_decorator
-@run_in_pyodide(packages=["Cartopy", "matplotlib", "pyodide-http"])
 def test_matplotlib(selenium):
-    import io
+    if not package_is_built("pyodide-http"):
+        pytest.skip("pyodide-http is not built")
+
+    @run_in_pyodide(packages=["Cartopy", "matplotlib", "pyodide-http"])
+    def run(selenium):
+        import io
+
+        import cartopy.crs as ccrs
+        import matplotlib.pyplot as plt
+        import pyodide_http
 
-    import cartopy.crs as ccrs
-    import matplotlib.pyplot as plt
-    import pyodide_http
+        pyodide_http.patch_all()
 
-    pyodide_http.patch_all()
+        ax = plt.axes(projection=ccrs.PlateCarree())
+        ax.coastlines()
 
-    ax = plt.axes(projection=ccrs.PlateCarree())
-    ax.coastlines()
+        fd = io.BytesIO()
+        plt.savefig(fd, format="svg")
 
-    fd = io.BytesIO()
-    plt.savefig(fd, format="svg")
+        content = fd.getvalue().decode("utf8")
+        assert len(content) > 100000
+        assert content.startswith("<?xml")
 
-    content = fd.getvalue().decode("utf8")
-    assert len(content) > 100000
-    assert content.startswith("<?xml")
+    run(selenium)

packages/matplotlib/meta.yaml

@@ -20,6 +20,7 @@ source:
     - - extras/setup.cfg
       - ./mplsetup.cfg
 
+
 build:
   # RELOCATABLE flag is required because if affects how emscripten build ports.
   cflags: |