diff -r 000000000000 -r 6474c204b198 dom/bindings/parser/tests/test_special_method_signature_mismatch.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/bindings/parser/tests/test_special_method_signature_mismatch.py	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,294 @@
+def WebIDLTest(parser, harness):
+    threw = False
+    try:
+        parser.parse("""
+            interface SpecialMethodSignatureMismatch1 {
+              getter long long foo(long index);
+            };
+        """)
+
+        results = parser.finish()
+    except:
+        threw = True
+
+    harness.ok(threw, "Should have thrown.")
+
+    threw = False
+    try:
+        parser.parse("""
+            interface SpecialMethodSignatureMismatch2 {
+              getter void foo(unsigned long index);
+            };
+        """)
+
+        results = parser.finish()
+    except:
+        threw = True
+
+    harness.ok(threw, "Should have thrown.")
+
+    threw = False
+    try:
+        parser.parse("""
+            interface SpecialMethodSignatureMismatch3 {
+              getter boolean foo(unsigned long index, boolean extraArg);
+            };
+        """)
+
+        results = parser.finish()
+    except:
+        threw = True
+
+    harness.ok(threw, "Should have thrown.")
+
+    threw = False
+    try:
+        parser.parse("""
+            interface SpecialMethodSignatureMismatch4 {
+              getter boolean foo(unsigned long... index);
+            };
+        """)
+
+        results = parser.finish()
+    except:
+        threw = True
+
+    harness.ok(threw, "Should have thrown.")
+
+    threw = False
+    try:
+        parser.parse("""
+            interface SpecialMethodSignatureMismatch5 {
+              getter boolean foo(optional unsigned long index);
+            };
+        """)
+
+        results = parser.finish()
+    except:
+        threw = True
+
+    harness.ok(threw, "Should have thrown.")
+
+    threw = False
+    try:
+        parser.parse("""
+            interface SpecialMethodSignatureMismatch6 {
+              getter boolean foo();
+            };
+        """)
+
+        results = parser.finish()
+    except:
+        threw = True
+
+    harness.ok(threw, "Should have thrown.")
+
+    threw = False
+    try:
+        parser.parse("""
+            interface SpecialMethodSignatureMismatch7 {
+              deleter long long foo(long index);
+            };
+        """)
+
+        results = parser.finish()
+    except:
+        threw = True
+
+    harness.ok(threw, "Should have thrown.")
+
+    threw = False
+    try:
+        parser.parse("""
+            interface SpecialMethodSignatureMismatch9 {
+              deleter boolean foo(unsigned long index, boolean extraArg);
+            };
+        """)
+
+        results = parser.finish()
+    except:
+        threw = True
+
+    harness.ok(threw, "Should have thrown.")
+
+    threw = False
+    try:
+        parser.parse("""
+            interface SpecialMethodSignatureMismatch10 {
+              deleter boolean foo(unsigned long... index);
+            };
+        """)
+
+        results = parser.finish()
+    except:
+        threw = True
+
+    harness.ok(threw, "Should have thrown.")
+
+    threw = False
+    try:
+        parser.parse("""
+            interface SpecialMethodSignatureMismatch11 {
+              deleter boolean foo(optional unsigned long index);
+            };
+        """)
+
+        results = parser.finish()
+    except:
+        threw = True
+
+    harness.ok(threw, "Should have thrown.")
+
+    threw = False
+    try:
+        parser.parse("""
+            interface SpecialMethodSignatureMismatch12 {
+              deleter boolean foo();
+            };
+        """)
+
+        results = parser.finish()
+    except:
+        threw = True
+
+    harness.ok(threw, "Should have thrown.")
+
+    threw = False
+    try:
+        parser.parse("""
+            interface SpecialMethodSignatureMismatch13 {
+              setter long long foo(long index, long long value);
+            };
+        """)
+
+        results = parser.finish()
+    except:
+        threw = True
+
+    harness.ok(threw, "Should have thrown.")
+
+    threw = False
+    try:
+        parser.parse("""
+            interface SpecialMethodSignatureMismatch15 {
+              setter boolean foo(unsigned long index, boolean value, long long extraArg);
+            };
+        """)
+
+        results = parser.finish()
+    except:
+        threw = True
+
+    harness.ok(threw, "Should have thrown.")
+
+    threw = False
+    try:
+        parser.parse("""
+            interface SpecialMethodSignatureMismatch16 {
+              setter boolean foo(unsigned long index, boolean... value);
+            };
+        """)
+
+        results = parser.finish()
+    except:
+        threw = True
+
+    harness.ok(threw, "Should have thrown.")
+
+    threw = False
+    try:
+        parser.parse("""
+            interface SpecialMethodSignatureMismatch17 {
+              setter boolean foo(unsigned long index, optional boolean value);
+            };
+        """)
+
+        results = parser.finish()
+    except:
+        threw = True
+
+    harness.ok(threw, "Should have thrown.")
+
+    threw = False
+    try:
+        parser.parse("""
+            interface SpecialMethodSignatureMismatch18 {
+              setter boolean foo();
+            };
+        """)
+
+        results = parser.finish()
+    except:
+        threw = True
+
+    harness.ok(threw, "Should have thrown.")
+
+    threw = False
+    try:
+        parser.parse("""
+            interface SpecialMethodSignatureMismatch20 {
+              creator long long foo(long index, long long value);
+            };
+        """)
+
+        results = parser.finish()
+    except:
+        threw = True
+
+    harness.ok(threw, "Should have thrown.")
+
+    threw = False
+    try:
+        parser.parse("""
+            interface SpecialMethodSignatureMismatch22 {
+              creator boolean foo(unsigned long index, boolean value, long long extraArg);
+            };
+        """)
+
+        results = parser.finish()
+    except:
+        threw = True
+
+    harness.ok(threw, "Should have thrown.")
+
+    threw = False
+    try:
+        parser.parse("""
+            interface SpecialMethodSignatureMismatch23 {
+              creator boolean foo(unsigned long index, boolean... value);
+            };
+        """)
+
+        results = parser.finish()
+    except:
+        threw = True
+
+    harness.ok(threw, "Should have thrown.")
+
+    threw = False
+    try:
+        parser.parse("""
+            interface SpecialMethodSignatureMismatch24 {
+              creator boolean foo(unsigned long index, optional boolean value);
+            };
+        """)
+
+        results = parser.finish()
+    except:
+        threw = True
+
+    harness.ok(threw, "Should have thrown.")
+
+    threw = False
+    try:
+        parser.parse("""
+            interface SpecialMethodSignatureMismatch25 {
+              creator boolean foo();
+            };
+        """)
+
+        results = parser.finish()
+    except:
+        threw = True
+
+    harness.ok(threw, "Should have thrown.")