adding small unit test + travis integration for OASYS

.travis.yml

@@ -1,7 +1,12 @@
+dist: xenial
 language: python
 python:
-  - "3.4"
-# command to install dependencies
-install: "source install.sh"
-# # command to run tests
-script: python setup.py test
+  - 3.5
+  - 3.6
+  - 3.7
+
+install:
+  - pip install .
+
+script:
+  pytest oasys/tests

oasys/application/addons.py

@@ -88,20 +88,12 @@
 
 
 def is_updatable(item):
-    if isinstance(item, Available):
+    if isinstance(item, Available) or item.installable is None:
         return False
-    elif item.installable is None:
-        return False
-    else:
-        inst, dist = item
-        try:
-            v1 = version.StrictVersion(dist.version)
-            v2 = version.StrictVersion(inst.version)
-        except ValueError:
-            pass
-        else:
-            return v1 < v2
-
+    inst, dist = item
+    try:
+        return version.StrictVersion(dist.version) < version.StrictVersion(inst.version)
+    except ValueError:
         return (version.LooseVersion(dist.version) <
                 version.LooseVersion(inst.version))
 

oasys/tests/test_addons.py

@@ -0,0 +1,18 @@
+from unittest.mock import Mock
+import pytest
+from oasys.application.addons import is_updatable, Available, Installed, Installable
+
+
+@pytest.mark.parametrize('items,expected', [
+    (Available(installable=True), False),
+    (Installed(installable=None, local=Mock()), False),
+    (Installed(installable=Installable(name='mock_name',
+                                       version='2.0.0',
+                                       summary='mock_summary',
+                                       description='mock_description',
+                                       package_url='mock_package_url',
+                                       release_urls='mock_release_urls'),
+               local=Mock(version='1.0.0')), True),
+])
+def test_is_updatable(items, expected):
+    assert is_updatable(items) == expected

setup.py

@@ -51,6 +51,7 @@
 if "darwin" in sys.platform:
     INSTALL_REQUIRES = (
         'setuptools',
+        'pytest',
         'numpy>=1.16.0',
         'PyQt5>=5.11.3',
         'scipy',
@@ -68,6 +69,7 @@
     if "debian" in platform.platform().lower(): # miniconda
         INSTALL_REQUIRES = (
             'setuptools',
+            'pytest',
             'numpy>=1.16.0',
             'PyQt5>=5.11.3',
             'scipy',
@@ -84,6 +86,7 @@
     elif "ubuntu" in platform.platform().lower(): # default python.org
         INSTALL_REQUIRES = (
             'setuptools',
+            'pytest',
             'numpy>=1.16.0',
             'PyQt5>=5.11.3',
             'scipy',
@@ -100,6 +103,7 @@
 else:
     INSTALL_REQUIRES = (
         'setuptools',
+        'pytest',
         'numpy>=1.16.0',
         'PyQt5>=5.11.3',
         'scipy',