split tests into files and change flake8/pytest setup (#35)

* extends tox and travis config to more python versions
* lines up closer with pep8
* fixes #32

Author: RonnyPfannschmidt

.travis.yml

@@ -1,25 +1,31 @@
 sudo: false
 language: python
 python:
+
+    - '2.6'
+    - '2.7'
+    - '3.3'
+    - '3.4'
     - '3.5'
+    - '3.6-dev'
+    - pypy
+    - nightly
 # command to install dependencies
 install: "pip install -U tox"
 # # command to run tests
 env:
   matrix:
-    - TESTENV=check
-    - TESTENV=py26-pytest27
-    - TESTENV=py26-pytest
-    - TESTENV=py27-pytest27
-    - TESTENV=py27-pytest
-    - TESTENV=py34-pytest27
-    - TESTENV=py34-pytest
-    - TESTENV=py35-pytest27
-    - TESTENV=py35-pytest
-    - TESTENV=pypy-pytest27
-    - TESTENV=pypy-pytest
-
-script: tox --recreate -e $TESTENV
+    - TOXENV=py-pytest28
+    - TOXENV=py-pytest29
+    - TOXENV=py-pytest30
+matrix:
+  include:
+    - python: '2.7'
+      env: TOXENV=check
+    - python: '3.5'
+      env: TOXENV=check
+script:
+ - tox --recreate -e $TOXENV
 
 notifications:
   irc:

pluggy.py

@@ -104,7 +104,7 @@ def setattr_hookspec_opts(func):
             if historic and firstresult:
                 raise ValueError("cannot have a historic firstresult hook")
             setattr(func, self.project_name + "_spec",
-                   dict(firstresult=firstresult, historic=historic))
+                    dict(firstresult=firstresult, historic=historic))
             return func
 
         if function is not None:
@@ -150,8 +150,8 @@ def __call__(self, function=None, hookwrapper=False, optionalhook=False,
         """
         def setattr_hookimpl_opts(func):
             setattr(func, self.project_name + "_impl",
-                   dict(hookwrapper=hookwrapper, optionalhook=optionalhook,
-                        tryfirst=tryfirst, trylast=trylast))
+                    dict(hookwrapper=hookwrapper, optionalhook=optionalhook,
+                         tryfirst=tryfirst, trylast=trylast))
             return func
 
         if function is None:
@@ -232,7 +232,7 @@ def get(self, name):
 def _raise_wrapfail(wrap_controller, msg):
     co = wrap_controller.gi_code
     raise RuntimeError("wrap_controller at %r %s:%d %s" %
-                   (co.co_name, co.co_filename, co.co_firstlineno, msg))
+                       (co.co_name, co.co_filename, co.co_firstlineno, msg))
 
 
 def _wrapped_call(wrap_controller, func):
@@ -279,6 +279,7 @@ def get_result(self):
                 raise ex[1].with_traceback(ex[2])
             _reraise(*ex)  # noqa
 
+
 if not _py3:
     exec("""
 def _reraise(cls, val, tb):
@@ -348,7 +349,7 @@ def register(self, plugin, name=None):
             if self._name2plugin.get(plugin_name, -1) is None:
                 return  # blocked plugin, return None to indicate no registration
             raise ValueError("Plugin already registered: %s=%s\n%s" %
-                            (plugin_name, plugin, self._name2plugin))
+                             (plugin_name, plugin, self._name2plugin))
 
         # XXX if an error happens we should make sure no state has been
         # changed at point of return
@@ -484,7 +485,7 @@ def _verify_hook(self, hook, hookimpl):
                     "plugin definition: %s\n"
                     "available hookargs: %s" %
                     (hookimpl.plugin_name, hook.name, arg,
-                    _formatdef(hookimpl.function), ", ".join(hook.argnames)))
+                     _formatdef(hookimpl.function), ", ".join(hook.argnames)))
 
     def check_pending(self):
         """ Verify that all hooks which have not been verified against

setup.py

@@ -43,5 +43,6 @@ def main():
         py_modules=['pluggy'],
     )
 
+
 if __name__ == '__main__':
     main()

testing/conftest.py

@@ -0,0 +1,30 @@
+import pytest
+
+
+@pytest.fixture(
+    params=[
+        lambda spec: spec,
+        lambda spec: spec()
+    ],
+    ids=[
+        "spec-is-class",
+        "spec-is-instance"
+    ],
+)
+def he_pm(request, pm):
+    from pluggy import HookspecMarker
+    hookspec = HookspecMarker("example")
+
+    class Hooks:
+        @hookspec
+        def he_method1(self, arg):
+            return arg + 1
+
+    pm.add_hookspecs(request.param(Hooks))
+    return pm
+
+
+@pytest.fixture
+def pm():
+    from pluggy import PluginManager
+    return PluginManager("example")

testing/test_details.py

@@ -0,0 +1,64 @@
+from pluggy import PluginManager, HookimplMarker, HookspecMarker
+
+
+hookspec = HookspecMarker("example")
+hookimpl = HookimplMarker("example")
+
+
+def test_parse_hookimpl_override():
+    class MyPluginManager(PluginManager):
+        def parse_hookimpl_opts(self, module_or_class, name):
+            opts = PluginManager.parse_hookimpl_opts(
+                self, module_or_class, name)
+            if opts is None:
+                if name.startswith("x1"):
+                    opts = {}
+            return opts
+
+    class Plugin:
+        def x1meth(self):
+            pass
+
+        @hookimpl(hookwrapper=True, tryfirst=True)
+        def x1meth2(self):
+            pass
+
+    class Spec:
+        @hookspec
+        def x1meth(self):
+            pass
+
+        @hookspec
+        def x1meth2(self):
+            pass
+
+    pm = MyPluginManager(hookspec.project_name)
+    pm.register(Plugin())
+    pm.add_hookspecs(Spec)
+    assert not pm.hook.x1meth._nonwrappers[0].hookwrapper
+    assert not pm.hook.x1meth._nonwrappers[0].tryfirst
+    assert not pm.hook.x1meth._nonwrappers[0].trylast
+    assert not pm.hook.x1meth._nonwrappers[0].optionalhook
+
+    assert pm.hook.x1meth2._wrappers[0].tryfirst
+    assert pm.hook.x1meth2._wrappers[0].hookwrapper
+
+
+def test_plugin_getattr_raises_errors():
+    """Pluggy must be able to handle plugins which raise weird exceptions
+    when getattr() gets called (#11).
+    """
+    class DontTouchMe:
+        def __getattr__(self, x):
+            raise Exception('cant touch me')
+
+    class Module:
+        pass
+
+    module = Module()
+    module.x = DontTouchMe()
+
+    pm = PluginManager(hookspec.project_name)
+    # register() would raise an error
+    pm.register(module, 'donttouch')
+    assert pm.get_plugin('donttouch') is module

testing/test_helpers.py

@@ -0,0 +1,68 @@
+from pluggy import _formatdef, varnames
+
+
+def test_varnames():
+    def f(x):
+        i = 3  # noqa
+
+    class A:
+        def f(self, y):
+            pass
+
+    class B(object):
+        def __call__(self, z):
+            pass
+
+    assert varnames(f) == ("x",)
+    assert varnames(A().f) == ('y',)
+    assert varnames(B()) == ('z',)
+
+
+def test_varnames_default():
+    def f(x, y=3):
+        pass
+
+    assert varnames(f) == ("x",)
+
+
+def test_varnames_class():
+    class C:
+        def __init__(self, x):
+            pass
+
+    class D:
+        pass
+
+    class E(object):
+        def __init__(self, x):
+            pass
+
+    class F(object):
+        pass
+
+    assert varnames(C) == ("x",)
+    assert varnames(D) == ()
+    assert varnames(E) == ("x",)
+    assert varnames(F) == ()
+
+
+def test_formatdef():
+    def function1():
+        pass
+
+    assert _formatdef(function1) == 'function1()'
+
+    def function2(arg1):
+        pass
+
+    assert _formatdef(function2) == "function2(arg1)"
+
+    def function3(arg1, arg2="qwe"):
+        pass
+
+    assert _formatdef(function3) == "function3(arg1, arg2='qwe')"
+
+    def function4(arg1, *args, **kwargs):
+        pass
+
+    assert _formatdef(function4) == "function4(arg1, *args, **kwargs)"

testing/test_hookrelay.py

@@ -0,0 +1,78 @@
+import pytest
+from pluggy import PluginValidationError, HookimplMarker, HookspecMarker
+
+
+hookspec = HookspecMarker("example")
+hookimpl = HookimplMarker("example")
+
+
+def test_happypath(pm):
+    class Api:
+        @hookspec
+        def hello(self, arg):
+            "api hook 1"
+
+    pm.add_hookspecs(Api)
+    hook = pm.hook
+    assert hasattr(hook, 'hello')
+    assert repr(hook.hello).find("hello") != -1
+
+    class Plugin:
+        @hookimpl
+        def hello(self, arg):
+            return arg + 1
+
+    plugin = Plugin()
+    pm.register(plugin)
+    l = hook.hello(arg=3)
+    assert l == [4]
+    assert not hasattr(hook, 'world')
+    pm.unregister(plugin)
+    assert hook.hello(arg=3) == []
+
+
+def test_argmismatch(pm):
+    class Api:
+        @hookspec
+        def hello(self, arg):
+            "api hook 1"
+
+    pm.add_hookspecs(Api)
+
+    class Plugin:
+        @hookimpl
+        def hello(self, argwrong):
+            pass
+
+    with pytest.raises(PluginValidationError) as exc:
+        pm.register(Plugin())
+
+    assert "argwrong" in str(exc.value)
+
+
+def test_only_kwargs(pm):
+    class Api:
+        @hookspec
+        def hello(self, arg):
+            "api hook 1"
+
+    pm.add_hookspecs(Api)
+    pytest.raises(TypeError, lambda: pm.hook.hello(3))
+
+
+def test_firstresult_definition(pm):
+    class Api:
+        @hookspec(firstresult=True)
+        def hello(self, arg):
+            "api hook 1"
+
+    pm.add_hookspecs(Api)
+
+    class Plugin:
+        @hookimpl
+        def hello(self, arg):
+            return arg + 1
+
+    pm.register(Plugin())
+    res = pm.hook.hello(arg=3)
+    assert res == 4