diff --git a/Namcap/tests/pkgbuild/test_nonuniquesources.py b/Namcap/tests/pkgbuild/test_nonuniquesources.py
index 1c6d75c..b8f3542 100644
--- a/Namcap/tests/pkgbuild/test_nonuniquesources.py
+++ b/Namcap/tests/pkgbuild/test_nonuniquesources.py
@@ -55,4 +55,40 @@ package() {
 		self.assertEqual(r.warnings, [("non-unique-source-name %s", "v1.2.3.tar.gz")])
 		self.assertEqual(r.infos, [])
 
+	def test_common_unique(self):
+		r = self.run_on_pkg(self.pkgbuild_no_source + "source=('pkgname.tar.xz' '${pkgname}-LICENSE::LICENSE.txt')")
+		self.assertEqual(r.errors, [])
+		self.assertEqual(r.warnings, [])
+		self.assertEqual(r.infos, [])
+
+	def test_common_repo_non_unique(self):
+		r = self.run_on_pkg(self.pkgbuild_no_source + "source=('pkgname.tar.xz' 'LICENSE')")
+		self.assertEqual(r.errors, [])
+		self.assertEqual(r.warnings, [("non-unique-source-name %s", "LICENSE")])
+		self.assertEqual(r.infos, [])
+
+	def test_common_repo_part_unique(self):
+		r = self.run_on_pkg(self.pkgbuild_no_source + "source=('pkgname.tar.xz' 'LICENSE-pkgname.txt')")
+		self.assertEqual(r.errors, [])
+		self.assertEqual(r.warnings, [])
+		self.assertEqual(r.infos, [])
+
+	def test_common_repo_part_non_unique(self):
+		r = self.run_on_pkg(self.pkgbuild_no_source + "source=('pkgname.tar.xz' 'LICENSE.txt')")
+		self.assertEqual(r.errors, [])
+		self.assertEqual(r.warnings, [("non-unique-source-name %s", "LICENSE.txt")])
+		self.assertEqual(r.infos, [])
+
+	def test_common_external_non_unique(self):
+		r = self.run_on_pkg(self.pkgbuild_no_source + "source=('pkgname.tar.xz' 'ftp://example.com/LICENSE.txt')")
+		self.assertEqual(r.errors, [])
+		self.assertEqual(r.warnings, [("non-unique-source-name %s", "LICENSE.txt")])
+		self.assertEqual(r.infos, [])
+
+	def test_common_case_insensitive(self):
+		r = self.run_on_pkg(self.pkgbuild_no_source + "source=('pkgname.tar.xz' 'ftp://example.com/license.txt')")
+		self.assertEqual(r.errors, [])
+		self.assertEqual(r.warnings, [("non-unique-source-name %s", "license.txt")])
+		self.assertEqual(r.infos, [])
+
 # vim: set ts=4 sw=4 noet: