1 files changed, 46 insertions, 0 deletions
diff --git a/tests/plugin1.py b/tests/plugin1.py
new file mode 100644
index 00000000..9401e327
--- /dev/null
+++ b/tests/plugin1.py
@@ -0,0 +1,46 @@
+"""Plugins for test_plugins.py to import."""
+
+import os.path
+
+import coverage
+from coverage.parser import CodeParser
+
+
+class Plugin(coverage.CoveragePlugin):
+    """A plugin to import, so that it isn't in the test's current directory."""
+
+    def file_tracer(self, filename):
+        """Trace only files named xyz.py"""
+        if "xyz.py" in filename:
+            file_tracer = FileTracer(filename)
+            return file_tracer
+
+    def file_reporter(self, filename):
+        return FileReporter(filename)
+
+
+class FileTracer(coverage.plugin.FileTracer):
+    def __init__(self, filename):
+        """xyz.py was actually sourced from ABC.zz"""
+        self._filename = filename
+        self._source_filename = os.path.join(
+            "/src",
+            os.path.basename(filename.replace("xyz.py", "ABC.zz"))
+        )
+
+    def source_filename(self):
+        return self._source_filename
+
+    def line_number_range(self, frame):
+        """Map the line number X to X05,X06,X07."""
+        lineno = frame.f_lineno
+        return lineno*100+5, lineno*100+7
+
+
+class FileReporter(coverage.plugin.FileReporter):
+    def get_parser(self, exclude=None):
+        return PluginParser()
+
+class PluginParser(CodeParser):
+    def parse_source(self):
+        return set([105, 106, 107, 205, 206, 207]), set([])