From 987ceb9300c9326e4932dd69d633e7bd7be04e16 Mon Sep 17 00:00:00 2001
From: Ned Batchelder <ned@nedbatchelder.com>
Date: Sun, 13 Sep 2020 13:30:20 -0400
Subject: Fix a missed exception handling for bad plugins

---
 tests/test_plugins.py | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

(limited to 'tests')

diff --git a/tests/test_plugins.py b/tests/test_plugins.py
index 2477f5ce..ed58c5f4 100644
--- a/tests/test_plugins.py
+++ b/tests/test_plugins.py
@@ -804,6 +804,28 @@ class BadFileTracerTest(FileTracerTest):
             """)
         self.run_bad_plugin("bad_plugin", "Plugin")
 
+    def test_line_number_range_raises_error(self):
+        self.make_file("bad_plugin.py", """\
+            import coverage.plugin
+            class Plugin(coverage.plugin.CoveragePlugin):
+                def file_tracer(self, filename):
+                    if filename.endswith("other.py"):
+                        return BadFileTracer()
+
+            class BadFileTracer(coverage.plugin.FileTracer):
+                def source_filename(self):
+                    return "something.foo"
+
+                def line_number_range(self, frame):
+                    raise Exception("borked!")
+
+            def coverage_init(reg, options):
+                reg.add_file_tracer(Plugin())
+            """)
+        self.run_bad_plugin(
+            "bad_plugin", "Plugin", our_error=False, excmsg="borked!",
+        )
+
     def test_line_number_range_returns_non_tuple(self):
         self.make_file("bad_plugin.py", """\
             import coverage.plugin
-- 
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