Updated minimum python version and test outputs (#221)

* updated minimum python version and test outputs

* upload results images

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* updating figures

---------

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

.github/workflows/tests.yml

@@ -22,7 +22,7 @@ jobs:
       fail-fast: false
       matrix:
         os: ["ubuntu-latest"]
-        python-version: ["3.7", "3.8", "3.9", "3.10"]
+        python-version: ["3.9", "3.10", "3.11"]
         nox-session: ["tests"]
         include:
           - os: macos-latest
@@ -42,20 +42,6 @@ jobs:
         uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
-      - name: Cache pip packages
-        uses: actions/cache@v3
-        with:
-          path: ~/.cache/pip
-          key: ${{ runner.os }}-pip-${{ matrix.nox-session }}-${{ hashFiles('**/noxfile.py') }}
-          restore-keys: |
-            ${{ runner.os }}-pip-${{ matrix.nox-session }}-
-      - name: Cache nox session files
-        uses: actions/cache@v3
-        with:
-          path: .nox
-          key: ${{ runner.os }}-nox-${{ matrix.nox-session }}-${{ hashFiles('**/noxfile.py') }}
-          restore-keys: |
-            ${{ runner.os }}-nox-${{ matrix.nox-session }}-
       - name: Cache pre-commit environments
         if: ${{ matrix.nox-session == 'lint' }}
         uses: actions/cache@v3
@@ -70,6 +56,12 @@ jobs:
           python -m pip install -U nox
       - name: Run tests
         run: python -m nox --non-interactive -s ${{ matrix.nox-session }}
+      - name: Upload generated images on failure
+        uses: actions/upload-artifact@v3
+        if: ${{ failure() && matrix.nox-session == 'tests' }}
+        with:
+          name: images-${{ matrix.os }}-${{ matrix.python-version }}
+          path: ./result_images
 
   release:
     if: ${{ inputs.prerelease || startsWith(github.ref, 'refs/tags/') }}

pyproject.toml

@@ -3,7 +3,7 @@ name = "corner"
 description = "Make some beautiful corner plots"
 authors = [{ name = "Dan Foreman-Mackey", email = "foreman.mackey@gmail.com" }]
 readme = "README.md"
-requires-python = ">=3.6"
+requires-python = ">=3.9"
 license = { text = "BSD 2-Clause License" }
 classifiers = [
     "Operating System :: OS Independent",
@@ -20,7 +20,7 @@ dependencies = ["matplotlib>=2.1"]
 "Bug Tracker" = "https://github.com/dfm/corner.py/issues"
 
 [project.optional-dependencies]
-test = ["pytest"]
+test = ["pytest", "arviz>=0.9", "scipy"]
 arviz = ["arviz>=0.9"]
 docs = ["arviz>=0.9", "sphinx>=1.7.5", "pandoc", "myst-nb", "sphinx-book-theme", "ipython"]
 

tests/test_corner.py

@@ -75,7 +75,7 @@ def test_basic():
     baseline_images=["basic_log"], remove_text=True, extensions=["png"]
 )
 def test_basic_log():
-    fig = _run_corner(exp_data=True, axes_scale="log")
+    _run_corner(exp_data=True, axes_scale="log")
 
 
 @image_comparison(
@@ -185,32 +185,32 @@ def test_overplot_log():
 
 
 @image_comparison(
-    baseline_images=["smooth1"], remove_text=True, extensions=["png"]
+    baseline_images=["bins"], remove_text=True, extensions=["png"]
 )
-def test_smooth1():
-    _run_corner(bins=50)
+def test_bins():
+    _run_corner(bins=25)
 
 
 @image_comparison(
-    baseline_images=["smooth1_log"], remove_text=True, extensions=["png"]
+    baseline_images=["bins_log"], remove_text=True, extensions=["png"]
 )
-def test_smooth1_log():
-    _run_corner(exp_data=True, axes_scale="log", bins=50)
+def test_bins_log():
+    _run_corner(exp_data=True, axes_scale="log", bins=25)
 
 
 @pytest.mark.skipif(not scipy_installed, reason="requires scipy for smoothing")
 @image_comparison(
-    baseline_images=["smooth2"], remove_text=True, extensions=["png"]
+    baseline_images=["smooth"], remove_text=True, extensions=["png"]
 )
-def test_smooth2():
+def test_smooth():
     _run_corner(bins=50, smooth=1.0)
 
 
 @pytest.mark.skipif(not scipy_installed, reason="requires scipy for smoothing")
 @image_comparison(
-    baseline_images=["smooth2_log"], remove_text=True, extensions=["png"]
+    baseline_images=["smooth_log"], remove_text=True, extensions=["png"]
 )
-def test_smooth2_log():
+def test_smooth_log():
     _run_corner(exp_data=True, axes_scale="log", bins=50, smooth=1.0)
 
 
@@ -322,10 +322,6 @@ def test_extended_overplotting():
         [4 * nsamples // 5, ndim]
     )
     mean = 4 * np.random.rand(ndim)
-    data2 = mean[None, :] + np.random.randn(ndim * nsamples // 5).reshape(
-        [nsamples // 5, ndim]
-    )
-    samples = np.vstack([data1, data2])
 
     value1 = mean
     # This is the empirical mean of the sample:

tests/test_hist2d.py

@@ -90,15 +90,6 @@ def test_backgroundSolarized():
     pl.style.use("default")
 
 
-@image_comparison(
-    baseline_images=["backgroundSeaborn"], remove_text=True, extensions=["png"]
-)
-def test_backgroundSeaborn():
-    pl.style.use("seaborn")
-    _run_hist2d("backgroundSeaborn")
-    pl.style.use("default")
-
-
 @image_comparison(
     baseline_images=["backgroundColor"], remove_text=True, extensions=["png"]
 )