diff --git a/test/mitmproxy/addons/test_maplocal.py b/test/mitmproxy/addons/test_maplocal.py
index 5ecdc0031..03e5d4626 100644
--- a/test/mitmproxy/addons/test_maplocal.py
+++ b/test/mitmproxy/addons/test_maplocal.py
@@ -1,77 +1,44 @@
-from pathlib import Path
+import pytest
 
-from mitmproxy.addons.maplocal import MapLocal
+from mitmproxy.addons.maplocal import MapLocal, file_candidates
 from mitmproxy.test import taddons
 from mitmproxy.test import tflow
 
 from mitmproxy.addons.modifyheaders import parse_modify_spec
 
 
+@pytest.mark.parametrize(
+    "url,spec,expected_candidates", [
+        (
+            "https://example.org/img/topic/subtopic/test.jpg",
+            ":example.com/foo:/tmp",
+            ["/tmp/img/topic/subtopic/test.jpg", "/tmp/img/topic/test.jpg", "/tmp/img/test.jpg", "/tmp/test.jpg"]
+        ),
+        (
+            "https://example.org/img/topic/subtopic/",
+            ":/img:/tmp",
+            ["/tmp/img/topic/subtopic/index.html", "/tmp/img/topic/index.html", "/tmp/img/index.html", "/tmp/index.html"]
+        ),
+        (
+            "https://example.org",
+            ":org:/tmp",
+            ["/tmp/index.html"]
+        ),
+    ]
+)
+def test_file_candidates(url, spec, expected_candidates):
+    spec = parse_modify_spec(spec, True, True)
+    candidates = file_candidates(url, spec.replacement)
+    assert [str(x) for x in candidates] == expected_candidates
+
+
 class TestMapLocal:
-    def test_file_candidates(self, tmpdir):
-        ml = MapLocal()
-
-        url = "https://example.org/img/topic/subtopic/test.jpg"
-        spec = parse_modify_spec(":/img/jpg:" + str(tmpdir), True, True)
-        file_candidates = ml.file_candidates(url, spec)
-        assert file_candidates[0] == str(tmpdir) + "/img/topic/subtopic/test.jpg"
-        assert file_candidates[1] == str(tmpdir) + "/img/topic/test.jpg"
-        assert file_candidates[2] == str(tmpdir) + "/img/test.jpg"
-        assert file_candidates[3] == str(tmpdir) + "/test.jpg"
-
-        url = "https://example.org/img/topic/subtopic/"
-        spec = parse_modify_spec(":/img:" + str(tmpdir), True, True)
-        file_candidates = ml.file_candidates(url, spec)
-        assert file_candidates[0] == str(tmpdir) + "/img/topic/subtopic/index.html"
-        assert file_candidates[1] == str(tmpdir) + "/img/topic/index.html"
-        assert file_candidates[2] == str(tmpdir) + "/img/index.html"
-        assert file_candidates[3] == str(tmpdir) + "/index.html"
-
-        url = "https://example.org"
-        spec = parse_modify_spec(":org:" + str(tmpdir), True, True)
-        file_candidates = ml.file_candidates(url, spec)
-        assert file_candidates[0] == str(tmpdir) + "/index.html"
-
-    def test_sanitize_candidate_path(self, tmpdir):
-        base_dir = Path(str(tmpdir))
-
-        tmpdir.join("testdir1", "testdir2", "testdir3", "testdir4", "testfile").write("bar", ensure=True)
-
-        ml = MapLocal()
-        assert ml.sanitize_candidate_path(
-            base_dir.joinpath("..", "bar"), base_dir
-        ) is None
-        assert ml.sanitize_candidate_path(
-            base_dir.joinpath(".."), base_dir
-        ) is None
-        assert ml.sanitize_candidate_path(
-            base_dir.joinpath("..", ".."), base_dir
-        ) is None
-        assert ml.sanitize_candidate_path(
-            base_dir.joinpath("..", "..", "..", "..", "..", "..", "etc", "passwd"), base_dir
-        ) is None
-
-        assert ml.sanitize_candidate_path(
-            base_dir.joinpath("testdir1"), base_dir
-        ) is not None
-        assert ml.sanitize_candidate_path(
-            base_dir.joinpath("testdir1", "testdir2"), base_dir
-        ) is not None
-        assert ml.sanitize_candidate_path(
-            base_dir.joinpath("testdir1", "testdir2", "testdir3", "testdir4", "testfile"), base_dir
-        ) is not None
-        assert ml.sanitize_candidate_path(
-            base_dir.joinpath("testdir1", "testdir2", "testdir3", "testdir4", "testfile"),
-            base_dir.joinpath("testdir1", "testdir2", "testdir3", "testdir4", "testfile")
-        ) is not None
-
-    def test_modify_headers(self, tmpdir):
+    def test_map_local(self, tmpdir):
         ml = MapLocal()
 
         with taddons.context(ml) as tctx:
             tmpfile = tmpdir.join("test1.jpg")
-            tmpfile.write("local content 1")
-
+            tmpfile.write("foo")
             tctx.configure(
                 ml,
                 map_local=[
@@ -81,11 +48,10 @@ class TestMapLocal:
             f = tflow.tflow()
             f.request.url = b"https://example.org/images/test1.jpg"
             ml.request(f)
-            assert f.response.content == b"local content 1"
+            assert f.response.content == b"foo"
 
             tmpfile = tmpdir.join("images", "test2.jpg")
-            tmpfile.write("local content 2", ensure=True)
-
+            tmpfile.write("bar", ensure=True)
             tctx.configure(
                 ml,
                 map_local=[
@@ -95,11 +61,10 @@ class TestMapLocal:
             f = tflow.tflow()
             f.request.url = b"https://example.org/images/test2.jpg"
             ml.request(f)
-            assert f.response.content == b"local content 2"
+            assert f.response.content == b"bar"
 
             tmpfile = tmpdir.join("images", "test3.jpg")
-            tmpfile.write("local content 3", ensure=True)
-
+            tmpfile.write("foobar", ensure=True)
             tctx.configure(
                 ml,
                 map_local=[
@@ -107,6 +72,6 @@ class TestMapLocal:
                 ]
             )
             f = tflow.tflow()
-            f.request.url = b"https://example.org/images/test3.jpg"
+            f.request.url = b"https://example.org/foo.jpg"
             ml.request(f)
-            assert f.response.content == b"local content 3"
+            assert f.response.content == b"foobar"