add test cases for User Defined Attributes

test/runnable/uda.d

@@ -0,0 +1,75 @@
+
+import core.stdc.stdio;
+
+enum EEE = 7;
+["hello"] struct SSS { }
+
+[3] { [4][EEE][SSS] int foo; }
+
+pragma(msg, __traits(getAttributes, foo));
+
+template Tuple(T...)
+{
+     alias T Tuple;
+}
+
+alias Tuple!(__traits(getAttributes, foo)) TP;
+
+pragma(msg, TP);
+pragma(msg, TP[2]);
+TP[3] a;
+pragma(msg, typeof(a));
+
+
+alias Tuple!(__traits(getAttributes, typeof(a))) TT;
+
+pragma(msg, TT);
+
+['c'] string s;
+pragma(msg, __traits(getAttributes, s));
+
+/************************************************/
+
+enum FFF;
+[FFF] int x1;
+pragma(msg, __traits(getAttributes, x1));
+
+void test1()
+{
+    alias Tuple!(__traits(getAttributes, x1)) tp;
+    assert(tp.length == 1);
+    if (!is(FFF == tp[0]))
+	assert(0);
+}
+
+/************************************************/
+
+void test2()
+{
+    int x;
+    alias Tuple!(__traits(getAttributes, x)) tp;
+    assert(tp.length == 0);
+}
+
+/************************************************/
+
+void test3()
+{
+    alias Tuple!(__traits(getAttributes, foo)) tp;
+    assert(tp.length == 4);
+    assert(tp[0] == 3);
+    assert(tp[1] == 4);
+    assert(tp[2] == 7);
+}
+
+/************************************************/
+
+int main()
+{
+    test1();
+    test2();
+    test3();
+
+    printf("Success\n");
+    return 0;
+}