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diff --git a/lib/hoe/cov.rb b/lib/hoe/cov.rb
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+##
+# Coverage plugin for hoe. Uses simplecov.
+#
+# === Tasks Provided:
+#
+# cov:: Analyze code coverage with tests using simplecov.
+
+module Hoe::Cov
+
+  ##
+  # Activate the cov dependencies.
+
+  def activate_cov_deps
+    dependency "simplecov", "~> 0.21", :development
+  end
+
+  ##
+  # Define tasks for plugin.
+
+  def define_cov_tasks
+    task :isolate # ensure it exists
+
+    self.clean_globs << "coverage"
+
+    desc "Run tests and analyze code coverage"
+    task :cov => :isolate do
+      test_task.test_prelude = "require \"simplecov\"; SimpleCov.start"
+
+      Rake::Task[:test].invoke
+    end
+  rescue LoadError
+    warn "simplecov not found"
+  end
+end