test: Add noxfile. (#43)

Author: busunkim96

.gitignore

@@ -34,3 +34,6 @@ tests/data/user-key.json
 # Generated files
 pylintrc
 pylintrc.test
+
+# Virtual environment
+env/

noxfile.py

@@ -0,0 +1,73 @@
+import nox
+
+
+@nox.session(python="3.6")
+def cover(session):
+    session.install("mock", "pytest", "pytest-cov", "futures", "click")
+    session.install(".")
+    session.run(
+        "py.test", "--cov=google_auth_oauthlib", "--cov=tests", "--cov-report=", "tests"
+    )
+    session.run("coverage", "report", "--show-missing", "--fail-under=100")
+
+
+@nox.session(python="3.6")
+def docgen(session):
+    session.env["SPHINX_APIDOC_OPTIONS"] = "members,inherited-members,show-inheritance"
+    session.install("mock", "pytest", "pytest-cov", "futures", "click", "sphinx")
+    session.install(".")
+    session.run("rm", "-rf", "docs/reference")
+    session.run(
+        "sphinx-apidoc",
+        "--output-dir",
+        "docs/reference",
+        "--separate",
+        "--module-first",
+        "google_auth_oauthlib",
+    )
+
+
+@nox.session(python="3.6")
+def docs(session):
+    session.install("sphinx", "-r", "docs/requirements-docs.txt")
+    session.install(".")
+    session.run("make", "-C", "docs", "html")
+
+
+@nox.session(python="3.5")
+def lint(session):
+    session.install(
+        "flake8",
+        "flake8-import-order",
+        "pylint",
+        "docutils",
+        "gcp-devrel-py-tools>=0.0.3",
+    )
+    session.install(".")
+    session.run(
+        "python", "setup.py", "check", "--metadata", "--restructuredtext", "--strict"
+    )
+    session.run(
+        "flake8",
+        "--import-order-style=google",
+        "--application-import-names=google_auth_oauthlib,tests",
+        "google_auth_oauthlib",
+        "tests",
+    )
+    session.run(
+        "gcp-devrel-py-tools",
+        "run-pylint",
+        "--config",
+        "pylint.config.py",
+        "--library-filesets",
+        "google_auth_oauthlib",
+        "--test-filesets",
+        "tests",
+    )
+
+
+@nox.session(python=["2.7", "3.5", "3.6", "3.7", "pypy"])
+def test(session):
+    session.install("mock", "pytest", "pytest-cov", "futures", "click")
+    session.install(".")
+    session.run("py.test", "--cov=google_auth_oauthlib", "--cov=tests", "tests")