3 files changed, 34 insertions, 0 deletions
diff --git a/tests/modules/path/test.lua b/tests/modules/path/test.lua
index f68a57e5f..57f7d06bc 100644
--- a/tests/modules/path/test.lua
+++ b/tests/modules/path/test.lua
@@ -34,6 +34,23 @@ function test_extension(t)
     t:are_equal(path.extension("\\home\\foo.so"), ".so")
 end
 
+function test_filename(t)
+    t:are_equal(path.filename("foo"), "foo")
+    t:are_equal(path.filename("foo.so"), "foo.so")
+    t:are_equal(path.filename("/tmp/foo.so"), "foo.so")
+    t:are_equal(path.filename("c:\\tmp\\foo.so"), "foo.so")
+    t:are_equal(path.filename("/tmp/.."), "..")
+    t:are_equal(path.filename("/tmp/."), ".")
+    t:are_equal(path.filename("/"), "")
+    t:are_equal(path.filename(""), "")
+    
+    -- unicode
+    t:are_equal(path.filename("Unicode 测试/test.lua"), "test.lua")
+    t:are_equal(path.filename("Unicode 测试/foo/test.lua"), "test.lua")
+    t:are_equal(path.filename("测试/test.lua"), "test.lua")
+    t:are_equal(path.filename("测试\\test.lua"), "test.lua")
+end
+
 function test_directory(t)
     t:are_equal(path.directory(""), nil)
     t:are_equal(path.directory("."), nil)
diff --git a/tests/modules/string/test.lua b/tests/modules/string/test.lua
index 94b3c1a04..4b093de45 100644
--- a/tests/modules/string/test.lua
+++ b/tests/modules/string/test.lua
@@ -94,6 +94,13 @@ function test_lastof(t)
     t:are_equal(("/home/file.txt"):lastof('/', true), 6)
     t:are_equal(("/home/file.txt"):lastof('/home', true), 1)
     t:are_equal(("/home/file.txt"):lastof('[/\\]home'), 1)
+    
+    -- long string
+    local longstr = ("a"):rep(1000) .. "b"
+    t:are_equal(longstr:lastof("b"), 1001)
+    t:are_equal(longstr:lastof("a"), 1000)
+    t:are_equal(longstr:lastof("b", true), 1001)
+    t:are_equal(longstr:lastof("a", true), 1000)
 end
 
 function test_replace(t)
diff --git a/tests/modules/utf8/test.lua b/tests/modules/utf8/test.lua
index f7c8dbd2e..ddbd6b639 100644
--- a/tests/modules/utf8/test.lua
+++ b/tests/modules/utf8/test.lua
@@ -110,6 +110,16 @@ function test_lastof(t)
     t:are_equal(utf8.lastof("ABC", "A", true), 1)
     t:are_equal(utf8.lastof("ABC", "B", true), 2)
     t:are_equal(utf8.lastof("ABC", ".", true), nil)
+    t:are_equal(utf8.lastof("你好", "好", true), 2)
+    t:are_equal(utf8.lastof("C你好D", "好", true), 3)
+    t:are_equal(utf8.lastof("C你好D", "D", true), 4)
+
+    -- long string
+    local longstr = ("你"):rep(1000) .. "好"
+    t:are_equal(utf8.lastof(longstr, "好"), 1001)
+    t:are_equal(utf8.lastof(longstr, "你"), 1000)
+    t:are_equal(utf8.lastof(longstr, "好", true), 1001)
+    t:are_equal(utf8.lastof(longstr, "你", true), 1000)
 
     -- pattern
     t:are_equal(utf8.lastof("ABC", "."), 3)