tests: add support for figleaf code-coverage gathering

twisted/plugins/allmydata_trial.py

@@ -0,0 +1,48 @@
+#! /usr/bin/python
+
+from zope.interface import implements
+from twisted.trial.itrial import IReporter
+from twisted.plugin import IPlugin
+
+# register a plugin that can create our FigleafReporter. The reporter itself
+# lives in a separate place
+
+# note that this .py file is *not* in a package: there is no __init__.py in
+# our parent directory. This is important, because otherwise ours would fight
+# with Twisted's. When trial looks for plugins, it merely executes all the
+# *.py files it finds in and twisted/plugins/ subdirectories of anything on
+# sys.path . The namespace that results from executing these .py files is
+# examined for instances which provide both IPlugin and the target interface
+# (in this case, trial is looking for IReporter instances). Each such
+# instance tells the application how to create a plugin by naming the module
+# and class that should be instantiated.
+
+# When installing our package via setup.py, arrange for this file to be
+# installed to the system-wide twisted/plugins/ directory.
+
+class _Reporter(object):
+    implements(IPlugin, IReporter)
+
+    def __init__(self, name, module, description, longOpt, shortOpt, klass):
+        self.name = name
+        self.module = module
+        self.description = description
+        self.longOpt = longOpt
+        self.shortOpt = shortOpt
+        self.klass = klass
+
+
+fig = _Reporter("Figleaf Code-Coverage Reporter",
+                "allmydata.test.trial_figleaf",
+                description="verbose color output (with figleaf coverage)",
+                longOpt="verbose-figleaf",
+                shortOpt="f",
+                klass="FigleafReporter")
+
+bwfig = _Reporter("Figleaf Code-Coverage Reporter (colorless)",
+                  "allmydata.test.trial_figleaf",
+                  description="Colorless verbose output (with figleaf coverage)",
+                  longOpt="bwverbose-figleaf",
+                  shortOpt=None,
+                  klass="FigleafTextReporter")
+