run tests on AppVeyor

.appveyor.yml

@@ -0,0 +1,70 @@
+# AppVeyor config for GridDataFormats
+#
+# config based on MDAnalysis, which was based on
+# examples from SciPy & NumPy repositories, which
+# themselves credit an original example by Olivier Grisel at
+# https://github.com/ogrisel/python-appveyor-demo/blob/master/appveyor.yml
+clone_depth: 50
+max_jobs: 100
+
+cache:
+    - '%LOCALAPPDATA%\pip\Cache'
+
+image:
+    - Visual Studio 2015
+
+environment:
+    global:
+        CONDA_CHANNELS: conda-forge
+        CONDA_DEPENDENCIES: pip setuptools wheel six scipy vs2015_runtime pytest pytest-cov codecov
+        DEBUG: "False"
+        MINGW_64: C:\mingw-w64\x86_64-6.3.0-posix-seh-rt_v5-rev1\mingw64\bin
+        OPENBLAS_64: https://3f23b170c54c2533c070-1c8a9b3114517dc5fe17b7c3f8c63a43.ssl.cf2.rackcdn.com/openblas-5f998ef_gcc7_1_0_win64.zip
+        APPVEYOR_SAVE_CACHE_ON_ERROR: true
+        APPVEYOR_SKIP_FINALIZE_ON_EXIT: true
+        TEST_TIMEOUT: 1000
+        PYTHON: "C:\\conda"
+        MINICONDA_VERSION: "latest"
+
+    matrix:
+        - PYTHON_VERSION: 3.6
+          PYTHON_ARCH: 64
+          MSVC_VERSION: "Visual Studio 10 Win64"
+
+init:
+    - ps: Write-Host ${env:PYTHON} ${env:PYTHON_VERSION} ${env:PYTHON_ARCH}
+    - ps: Write-Host ${env:APPVEYOR_SCHEDULED_BUILD}
+    # cancel build if newer one is submitted; complicated
+    # details for getting this to work are credited to JuliaLang
+    # developers
+    - ps: if ($env:APPVEYOR_PULL_REQUEST_NUMBER -and $env:APPVEYOR_BUILD_NUMBER -ne ((Invoke-RestMethod `
+        https://ci.appveyor.com/api/projects/$env:APPVEYOR_ACCOUNT_NAME/$env:APPVEYOR_PROJECT_SLUG/history?recordsNumber=50).builds | `
+        Where-Object pullRequestId -eq $env:APPVEYOR_PULL_REQUEST_NUMBER)[0].buildNumber) { `
+          raise "There are newer queued builds for this pull request, skipping build."
+        }
+
+install:
+    # set up a conda env
+    - ps: git clone -q --depth 1 git://github.com/astropy/ci-helpers.git
+    - ps: ci-helpers/appveyor/install-miniconda.ps1
+    - ps: $env:PATH = "${env:PYTHON};${env:PYTHON}\Scripts;" + $env:PATH
+    # deal with missing stdint.h as previously described
+    # see https://github.com/swistakm/pyimgui/blob/master/.appveyor.yml
+    - ps: cp "C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\stdint.h" "C:\Users\appveyor\AppData\Local\Programs\Common\Microsoft\Visual C++ for Python\9.0\VC\include\stdint.h"
+    - ps: activate test
+
+build_script:
+    - cmd: C:\conda\envs\test\python.exe setup.py develop --no-deps --user 3>&1
+
+test_script:
+    - cmd: C:\conda\envs\test\python.exe setup.py develop --no-deps --user 3>&1
+    - cmd: C:\conda\envs\test\Scripts\pytest.exe --cov=gridData  3>&1
+    - cmd: codecov
+
+after_build:
+    # cache cleanup
+    - C:\cygwin\bin\find "%LOCALAPPDATA%\pip" -type f -mtime +360 -delete
+    - C:\cygwin\bin\find "%LOCALAPPDATA%\pip" -type f -size +10M -delete
+    - C:\cygwin\bin\find "%LOCALAPPDATA%\pip" -empty -delete
+    # Show size of cache
+    - C:\cygwin\bin\du -hs "%LOCALAPPDATA%\pip\Cache"

gridData/core.py

@@ -256,7 +256,7 @@ def resample_factor(self, factor):
         """
         # new number of edges N' = (N-1)*f + 1
         newlengths = [(N - 1) * float(factor) + 1 for N in self._len_edges()]
-        edges = [numpy.linspace(start, stop, num=N, endpoint=True)
+        edges = [numpy.linspace(start, stop, num=int(N), endpoint=True)
                  for (start, stop, N) in
                  zip(self._min_edges(), self._max_edges(), newlengths)]
         return self.resample(edges)