regress: add test_symbol.py

suite/regress/test_symbol.py

+#!/usr/bin/python
+
+# Test symbols redefined/missing
+
+# Github issue: #61
+# Author: Nguyen Anh Quynh
+
+from keystone import *
+
+import regress
+
+class TestSymbols(regress.RegressTest):
+    def runTest(self):
+        # Initialize Keystone engine
+        ks = Ks(KS_ARCH_X86, KS_MODE_32)
+
+        try:
+            encoding, count = ks.asm(b"_label:; nop; _label:")
+        except KsError as e:
+            if e.errno == KS_ERR_ASM_SYMBOL_REDEFINED:
+                print("Got error KS_ERR_ASM_SYMBOL_REDEFINED as expected")
+            else:
+                self.assertFalse(1, "ERROR: %s" % e)
+
+        try:
+            encoding, count = ks.asm(b"mov eax, eflags")
+        except KsError as e:
+            if e.errno == KS_ERR_ASM_SYMBOL_MISSING:
+                print("Got error KS_ERR_ASM_SYMBOL_MISSING as expected")
+            else:
+                self.assertFalse(1, "ERROR: %s" % e)
+
+
+if __name__ == '__main__':
+    regress.main()