ci: enable tests using Github actions

Author: sbrugman

.github/workflows/test.yml

@@ -0,0 +1,35 @@
+name: test
+
+on:
+  push:
+    branches: [ master, develop ]
+  pull_request:
+
+jobs:
+  test:
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+        python: [3.7, 3.8, 3.9]
+    runs-on: ${{ matrix.os }}
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Python ${{ matrix.python }}
+      uses: actions/setup-python@v1
+      with:
+        python-version: ${{ matrix.python }}
+    - uses: actions/cache@v3
+      with:
+        path: ~/.cache/pip
+        key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}-${{ hashFiles('**/requirements-test.txt') }}
+        restore-keys: |
+          ${{ runner.os }}-pip-
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install -e .
+        pip install -r requirements-test.txt
+    - name: Test with pytest
+      run: |
+        pytest tests/

requirements-test.txt

@@ -4,3 +4,4 @@ jupyter_client>=5.2.3
 ipykernel>=5.1.3
 pre-commit>=2.9.0
 matplotlib
+pandas

tests/testbasic.py tests/test_basic.pytests/testbasic.py renamed to tests/test_basic.py

@@ -36,7 +36,7 @@
 from histogrammar.primitives.sum import Sum
 from histogrammar.util import xrange, named
 from histogrammar import util
-from tests.testnumpy import makeSamples
+from tests.test_numpy import makeSamples
 
 tolerance = 1e-5
 util.relativeTolerance = tolerance

tests/testgpu.py tests/test_gpu.pytests/testgpu.py renamed to tests/test_gpu.py

@@ -97,7 +97,7 @@ def test_make_histograms_no_time_axis():
     assert time_axis == ""
     assert "date" in hists
     h = hists["date"]
-    assert h.binWidth == 751582381944448.0
+    assert h.binWidth == pytest.approx(751582381944448.0)
     for cols in features:
         cols = cols.split(":")
         assert len(cols) == 1
@@ -122,23 +122,23 @@ def test_make_histograms_with_time_axis():
     assert time_axis == "date"
     assert "date:age" in hists
     h = hists["date:age"]
-    assert h.binWidth == 751582381944448.0
+    assert h.binWidth == pytest.approx(751582381944448.0)
     for cols in features:
         cols = cols.split(":")
         assert len(cols) == 2 and cols[0] == "date"
     for f, bs in bin_specs.items():
         assert len(bs) == 2
     assert "date:age" in bin_specs
     dateage = bin_specs["date:age"]
-    assert dateage[0]["binWidth"] == 751582381944448.0
+    assert dateage[0]["binWidth"] == pytest.approx(751582381944448.0)
     assert dateage[1]["binWidth"] == 2.0
     assert dateage[1]["origin"] == 9.5
 
     # test get_bin_specs 1
     bin_specs = get_bin_specs(hists)
     assert "date:age" in bin_specs
     dateage = bin_specs["date:age"]
-    assert dateage[0]["binWidth"] == 751582381944448.0
+    assert dateage[0]["binWidth"] == pytest.approx(751582381944448.0)
     assert dateage[1]["binWidth"] == 2.0
     assert dateage[1]["origin"] == 9.5
 
@@ -151,7 +151,7 @@ def test_make_histograms_with_time_axis():
 
     # test get_bin_specs 3
     bin_specs = get_bin_specs(hists["date:age"])
-    assert bin_specs[0]["binWidth"] == 751582381944448.0
+    assert bin_specs[0]["binWidth"] == pytest.approx(751582381944448.0)
     assert bin_specs[1]["binWidth"] == 2.0
     assert bin_specs[1]["origin"] == 9.5