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-rw-r--r--tests/lstrlib.js37
1 files changed, 37 insertions, 0 deletions
diff --git a/tests/lstrlib.js b/tests/lstrlib.js
index 494b881..7120525 100644
--- a/tests/lstrlib.js
+++ b/tests/lstrlib.js
@@ -78,4 +78,41 @@ test('string.char', function (t) {
"hello",
"Correct element(s) on the stack"
);
+});
+
+
+test('string.upper, string.lower', function (t) {
+ let luaCode = `
+ return string.upper("hello"), string.lower("HELLO")
+ `, L;
+
+ t.plan(4);
+
+ t.doesNotThrow(function () {
+
+ L = lauxlib.luaL_newstate();
+
+ linit.luaL_openlibs(L);
+
+ lauxlib.luaL_loadstring(L, luaCode);
+
+ }, "Lua program loaded without error");
+
+ t.doesNotThrow(function () {
+
+ lapi.lua_call(L, 0, -1);
+
+ }, "Lua program ran without error");
+
+ t.strictEqual(
+ lapi.lua_tostring(L, -2),
+ "HELLO",
+ "Correct element(s) on the stack"
+ );
+
+ t.strictEqual(
+ lapi.lua_tostring(L, -1),
+ "hello",
+ "Correct element(s) on the stack"
+ );
}); \ No newline at end of file