Use py 3.12 for test on pr

Author: bobleesj

.github/workflows/tests-on-pr.yml

@@ -8,11 +8,47 @@ on:
   workflow_dispatch:
 
 jobs:
-  tests-on-pr:
-    uses: Billingegroup/release-scripts/.github/workflows/_tests-on-pr.yml@v0
-    with:
-      project: diffpy.pdffit2
-      c_extension: true
-      headless: false
-    secrets:
-      CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+  validate:
+    defaults:
+      run:
+        shell: bash -l {0}
+
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out diffpy.pdffit2
+        uses: actions/checkout@v4
+
+      - name: Initialize miniconda
+        uses: conda-incubator/setup-miniconda@v3
+        with:
+          activate-environment: test
+          auto-update-conda: true
+          environment-file: environment.yml
+          auto-activate-base: false
+          python-version: 3.12
+
+      - name: Conda config
+        run: >-
+          conda config --set always_yes yes
+          --set changeps1 no
+
+      - name: Install diffpy.pdffit2 and requirements
+        run: |
+          conda install --file requirements/conda.txt
+          conda install --file requirements/test.txt
+          conda install --file requirements/build.txt
+          python -m pip install . --no-deps
+
+
+      - name: Validate diffpy.pdffit2
+        run: |
+          pytest --cov
+          coverage report -m
+          codecov
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v4
+        with:
+          verbose: true
+          fail_ci_if_error: true
+          token: ${{ secrets.CODECOV_TOKEN }}