From 62cb8279094fd137ce2382fe99592ef0aae0f557 Mon Sep 17 00:00:00 2001
From: Benoit Giannangeli <benoit.giannangeli@boursorama.fr>
Date: Thu, 16 Feb 2017 16:04:03 +0100
Subject: lua_call

---
 tests/C/Makefile   |  3 ++-
 tests/C/lua_call.c | 28 ++++++++++++++++++++++++++++
 tests/lapi.js      | 34 ++++++++++++++++++++++++++++++++++
 3 files changed, 64 insertions(+), 1 deletion(-)
 create mode 100644 tests/C/lua_call.c

(limited to 'tests')

diff --git a/tests/C/Makefile b/tests/C/Makefile
index 357bbbe..816be44 100644
--- a/tests/C/Makefile
+++ b/tests/C/Makefile
@@ -10,4 +10,5 @@ all:
 	$(CC) $(CFLAGS) $(LIBS) lua_pushstring.c          -o lua_pushstring.out
 	$(CC) $(CFLAGS) $(LIBS) lua_pushboolean.c         -o lua_pushboolean.out
 	$(CC) $(CFLAGS) $(LIBS) lua_pushvalue.c           -o lua_pushvalue.out
-	$(CC) $(CFLAGS) $(LIBS) lua_pushcclosure-light.c  -o lua_pushcclosure-light.out
\ No newline at end of file
+	$(CC) $(CFLAGS) $(LIBS) lua_pushcclosure-light.c  -o lua_pushcclosure-light.out
+	$(CC) $(CFLAGS) $(LIBS) lua_call.c 				  -o lua_call.out
\ No newline at end of file
diff --git a/tests/C/lua_call.c b/tests/C/lua_call.c
new file mode 100644
index 0000000..3e0e406
--- /dev/null
+++ b/tests/C/lua_call.c
@@ -0,0 +1,28 @@
+#include <lua.h>
+#include <lualib.h>
+#include <lauxlib.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+int func(lua_State *L) {
+    lua_pushstring(L, "hello");
+    return 1;
+}
+
+int main(void) {
+
+    lua_State *L = luaL_newstate();
+
+    luaL_openlibs(L);
+
+    lua_pushcfunction(L, func);
+
+    lua_call(L, 0, 1);
+
+    printf("Lua returned: %s\n", lua_tostring(L, -1));
+
+    lua_close(L);
+
+    return 0;
+
+}
\ No newline at end of file
diff --git a/tests/lapi.js b/tests/lapi.js
index ad39fe1..c0f1cdc 100644
--- a/tests/lapi.js
+++ b/tests/lapi.js
@@ -278,4 +278,38 @@ test('lua_pushcfunction', function (t) {
         "function",
         "Correct element(s) on the stack"
     );
+});
+
+
+test('lua_call (calling a light JS function)', function (t) {
+    let L;
+    
+    t.plan(3);
+
+    t.doesNotThrow(function () {
+
+        let fn = function(L) {
+            lapi.lua_pushstring(L, "hello");
+            return 1;
+        };
+
+        L = lauxlib.luaL_newstate();
+
+        lapi.lua_pushcfunction(L, fn);
+
+        lapi.lua_call(L, 0, 1);
+
+    }, "JS Lua program ran without error");
+
+    t.strictEqual(
+        lapi.lua_gettop(L),
+        1,
+        "top is correct"
+    );
+
+    t.strictEqual(
+        lapi.lua_tostring(L, -1),
+        "hello",
+        "top is correct"
+    );
 });
\ No newline at end of file
-- 
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