CI: Add job with conda

Author: mrkn

.github/workflows/ci.yml

@@ -12,7 +12,7 @@ on:
 
 jobs:
   test:
-    name: ${{ matrix.os }}/ruby-${{ matrix.ruby }}/python-${{ matrix.python }}-${{ matrix.python_architecture }}
+    name: ${{ matrix.os }}/${{ matrix.ruby }}/${{ matrix.python }}-${{ matrix.python_architecture }}
     runs-on: ${{ matrix.os }}
 
     strategy:
@@ -66,3 +66,46 @@ jobs:
     - run: bundle exec rake
       env:
         PYTHON: python
+
+  conda:
+    name: conda:${{ matrix.os }}/${{ matrix. ruby }}/${{ matrix.python }}
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+        - ubuntu-20.04
+        - macos-latest
+        ruby:
+        - "3.0"
+        python:
+        - 3.8
+
+    steps:
+    - uses: actions/checkout@v2
+      with:
+        fetch-depth: 1
+
+    - uses: ruby/setup-ruby@v1
+      if: matrix.ruby_version != 'master-nightly'
+      with:
+        ruby-version: ${{ matrix.ruby }}
+
+    - uses: s-weigand/setup-conda@v1
+      with:
+        python-version: ${{ matrix.python }}
+
+    - run: gem install bundler
+
+    - run: conda install numpy
+
+    - run: bundle install
+
+    - run: bundle exec rake compile
+
+    - run: python lib/pycall/python/investigator.py
+
+    - run: bundle exec rake
+      env:
+        PYTHON: python