Enable unit testing in Circle and start some MLX LM tests (#545)

* add a few tests for mlx lm

* add a few tests for mlx lm

* add a few tests for mlx lm

* more tests / cleanup

.circleci/config.yml

@@ -17,6 +17,30 @@ jobs:
             pre-commit run --all
             if ! git diff --quiet; then echo 'Style checks failed, please install pre-commit and run pre-commit run --all and push the change'; exit 1; fi
 
+  mlx_lm_build_and_test:
+    macos:
+      xcode: "15.2.0"
+    resource_class: macos.m1.large.gen1
+    steps:
+      - checkout
+      - run:
+          name: Install dependencies
+          command: |
+            brew install python@3.8
+            python3.8 -m venv env
+            source env/bin/activate
+            pip install --upgrade pip
+            pip install unittest-xml-reporting
+            cd llms/
+            pip install -e .
+      - run:
+          name: Run Python tests
+          command: |
+            source env/bin/activate
+            python -m xmlrunner discover -v llms/tests -o test-results/
+      - store_test_results:
+          path: test-results
+
 workflows:
   build_and_test:
     when:
@@ -24,6 +48,7 @@ workflows:
         pattern: "^(?!pull/)[-\\w]+$"
         value: << pipeline.git.branch >>
     jobs:
+      - mlx_lm_build_and_test
       - linux_build_and_test
 
   prb: