Make the GitHub Actions workflow reusable so that we can test pytorch

Author: asmeurer

.github/workflows/array-api-tests-numpy.yml

@@ -0,0 +1,9 @@
+name: Array API Tests (NumPy)
+
+on: [push, pull_request]
+
+jobs:
+  call-workflow-passing-data:
+    uses: ./github/workflows/array-api-tests.yml
+    with:
+      package-name: numpy

.github/workflows/array-api-tests-torch.yml

@@ -0,0 +1,9 @@
+name: Array API Tests (PyTorch)
+
+on: [push, pull_request]
+
+jobs:
+  call-workflow-passing-data:
+    uses: ./github/workflows/array-api-tests.yml
+    with:
+      package-name: torch

.github/workflows/array-api-tests.yml

@@ -1,6 +1,11 @@
 name: Array API Tests
 
-on: [push, pull_request]
+on:
+  workflow_call:
+    inputs:
+      package-name:
+        required: true
+        type: string
 
 env:
   PYTEST_ARGS: "--max-examples 200 -v -rxXfE --ci"
@@ -34,15 +39,15 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        python -m pip install numpy
+        python -m pip install {{ inputs.package-name }}
         python -m pip install -r ${GITHUB_WORKSPACE}/array-api-tests/requirements.txt
-    - name: Run the array API testsuite (NumPy)
+    - name: Run the array API testsuite ({{ inputs.package-name }})
       env:
-        ARRAY_API_TESTS_MODULE: array_api_compat.numpy
+        ARRAY_API_TESTS_MODULE: array_api_compat.{{ inputs.package-name }}
         # This enables the NEP 50 type promotion behavior (without it a lot of
         # tests fail on bad scalar type promotion behavior)
         NPY_PROMOTION_STATE: weak
       run: |
         export PYTHONPATH="${GITHUB_WORKSPACE}/array-api-compat"
         cd ${GITHUB_WORKSPACE}/array-api-tests
-        pytest ${PYTEST_ARGS} --xfails-file ${GITHUB_WORKSPACE}/array-api-compat/numpy-xfails.txt array_api_tests/
+        pytest ${PYTEST_ARGS} --xfails-file ${GITHUB_WORKSPACE}/array-api-compat/{{ inputs.package-name }}-xfails.txt array_api_tests/