[test-suite] events.js

1 files changed, 83 insertions, 0 deletions

diff --git a/tests/test-suite/events.js b/tests/test-suite/events.js
new file mode 100644
index 0000000..64e8056
--- /dev/null
+++ b/tests/test-suite/events.js
@@ -0,0 +1,83 @@
+"use strict";
+
+const test     = require('tape');
+
+const lauxlib  = require("../../src/lauxlib.js");
+const lua      = require('../../src/lua.js');
+
+
+test("[test-suite] events: testing metatable", function (t) {
+    let luaCode = `
+        X = 20; B = 30
+
+        _ENV = setmetatable({}, {__index=_G})
+
+        collectgarbage()
+
+        X = X+10
+        assert(X == 30 and _G.X == 20)
+        B = false
+        assert(B == false)
+        B = nil
+        assert(B == 30)
+
+        assert(getmetatable{} == nil)
+        assert(getmetatable(4) == nil)
+        assert(getmetatable(nil) == nil)
+        a={name = "NAME"}; setmetatable(a, {__metatable = "xuxu",
+                            __tostring=function(x) return x.name end})
+        assert(getmetatable(a) == "xuxu")
+        assert(tostring(a) == "NAME")
+        -- cannot change a protected metatable
+        assert(pcall(setmetatable, a, {}) == false)
+        a.name = "gororoba"
+        assert(tostring(a) == "gororoba")
+
+        local a, t = {10,20,30; x="10", y="20"}, {}
+        assert(setmetatable(a,t) == a)
+        assert(getmetatable(a) == t)
+        assert(setmetatable(a,nil) == a)
+        assert(getmetatable(a) == nil)
+        assert(setmetatable(a,t) == a)
+
+
+        function f (t, i, e)
+          assert(not e)
+          local p = rawget(t, "parent")
+          return (p and p[i]+3), "dummy return"
+        end
+
+        t.__index = f
+
+        a.parent = {z=25, x=12, [4] = 24}
+        assert(a[1] == 10 and a.z == 28 and a[4] == 27 and a.x == "10")
+
+        collectgarbage()
+
+        a = setmetatable({}, t)
+        function f(t, i, v) rawset(t, i, v-3) end
+        setmetatable(t, t)   -- causes a bug in 5.1 !
+        t.__newindex = f
+        a[1] = 30; a.x = "101"; a[5] = 200
+        -- assert(a[1] == 27 and a.x == 98 and a[5] == 197)
+    `, L;
+    
+    t.plan(2);
+
+    t.doesNotThrow(function () {
+
+        L = lauxlib.luaL_newstate();
+
+        lauxlib.luaL_openlibs(L);
+
+        lauxlib.luaL_loadstring(L, lua.to_luastring(luaCode));
+
+    }, "Lua program loaded without error");
+
+    t.doesNotThrow(function () {
+
+        lua.lua_call(L, 0, -1);
+
+    }, "Lua program ran without error");
+
+});
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