adding test_mean.py

github/workflow/github-actions.yml

@@ -0,0 +1,29 @@
+# copy this file to .github/workflows/github-actions.yml in this repository
+name: learn-github-actions
+on: [push]
+jobs:
+  test-my-python-code:
+    # select the os-image these jobs should run on
+    runs-on: ubuntu-latest
+
+    # define the Python versions that should be used
+    strategy:
+      matrix:
+        python-version: [2.7, 3.8]
+
+    steps:
+      # step to check out the repository
+      - uses: actions/checkout@v2
+
+      # step to create the Python environment
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      # step to install the dependencies
+      - name: Install dependencies
+        run: "pip install -r requirements.txt"
+
+      # step to run tests
+      - run: pytest -v

test_mean.py

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+from mean import *
+
+def test_ints():
+    ""intigers""
+    num_list = [1,2,3,4,5]
+    obs = mean(num_list)
+    exp = 3
+    assert obs == exp
+
+def test_zero():
+    ""integers""
+    num_list=[0,2,4,6]
+    obs = mean(num_list)
+    exp = 3
+    assert obs == exp
+
+def test_double():
+    # This one will fail in Python 2
+    num_list=[1,2,3,4]
+    obs = mean(num_list)
+    exp = 2.5
+    assert obs == exp
+
+def test_long():
+    big = 100000000
+    obs = mean(range(1,big))
+    exp = big/2.0
+    assert obs == exp
+
+def test_complex():
+    # given that complex numbers are an unordered field
+    # the arithmetic mean of complex numbers is meaningless
+    num_list = [2 + 3j, 3 + 4j, -32 - 2j]
+    obs = mean(num_list)
+    exp = NotImplemented
+    assert obs == exp
+