adding tox for matrix of tests

.ci/run-tests.yml

@@ -0,0 +1,37 @@
+trigger:
+  - master
+
+jobs:
+  - job: 'Test'
+    pool:
+      vmImage: 'ubuntu-latest'
+    strategy:
+      matrix:
+        py36:
+          python.version: '3.6'
+          tox.env: py36
+        py37:
+          python.version: '3.7'
+          tox.env: py37
+
+    steps:
+      - task: UsePythonVersion@0
+        displayName: Get Python for Python tools.
+        inputs:
+          versionSpec: '3.7'
+          addToPath: false
+        name: pyTools
+
+      - script: $(pyTools.pythonLocation)/bin/python -m pip install -U tox
+        displayName: Install Python-based tools.
+
+      - task: UsePythonVersion@0
+        inputs:
+          versionSpec: '$(python.version)'
+          architecture: 'x64'
+        displayName: Use cached Python $(python.version) for tests.
+
+      - script: $(pyTools.pythonLocation)/bin/tox -e $(tox.env)
+        env:
+          TOX_AP_TEST_EXTRAS: azure-pipelines
+        displayName: run tox -e $(tox.env)

.gitignore

@@ -19,3 +19,4 @@ htmlcov
 exoplanet_version.py
 env
 venv-test
+.tox

.vscode/settings.json

@@ -23,5 +23,6 @@
     "files.trimTrailingWhitespace": true,
     "C_Cpp.autoAddFileAssociations": false,
     "editor.formatOnSave": true,
-    "python.pythonPath": "${workspaceFolder}/env/bin/python"
+    "python.pythonPath": "${workspaceFolder}/env/bin/python",
+    "git.ignoreLimitWarning": true
 }

requirements.txt

@@ -3,3 +3,5 @@ numpy>=1.13.0
 pymc3>=3.5
 astropy>=3.1
 rebound_pymc3>=0.0.3
+setuptools>=40.6.0
+setuptools_scm

tox.ini

@@ -0,0 +1,11 @@
+[tox]
+envlist = envlist = py36,py37
+isolated_build = True
+
+[testenv]
+setenv =
+    VIRTUALENV_NO_DOWNLOAD=1
+deps = -rrequirements-test.txt
+commands =
+    {envbindir}/python setup.py develop
+    {envbindir}/python -m pytest -vs src/exoplanet