1 files changed, 256 insertions, 0 deletions
diff --git a/xpcom/idl-parser/xpidl/runtests.py b/xpcom/idl-parser/xpidl/runtests.py
new file mode 100755
index 0000000000..f209b5483a
--- /dev/null
+++ b/xpcom/idl-parser/xpidl/runtests.py
@@ -0,0 +1,256 @@
+#!/usr/bin/env python
+#
+# Any copyright is dedicated to the Public Domain.
+# http://creativecommons.org/publicdomain/zero/1.0/
+#
+# Unit tests for xpidl.py
+
+import sys
+
+# Hack: the first entry in sys.path is the directory containing the script.
+# This messes things up because that directory is the xpidl module, and that
+# which conflicts with the xpidl submodule in the imports further below.
+sys.path.pop(0)
+
+import unittest
+
+import mozunit
+from xpidl import header, xpidl
+
+
+class TestParser(unittest.TestCase):
+    def setUp(self):
+        self.p = xpidl.IDLParser()
+
+    def testEmpty(self):
+        i = self.p.parse("", filename="f")
+        self.assertTrue(isinstance(i, xpidl.IDL))
+        self.assertEqual([], i.productions)
+
+    def testForwardInterface(self):
+        i = self.p.parse("interface foo;", filename="f")
+        self.assertTrue(isinstance(i, xpidl.IDL))
+        self.assertTrue(isinstance(i.productions[0], xpidl.Forward))
+        self.assertEqual("foo", i.productions[0].name)
+
+    def testInterface(self):
+        i = self.p.parse("[uuid(abc)] interface foo {};", filename="f")
+        self.assertTrue(isinstance(i, xpidl.IDL))
+        self.assertTrue(isinstance(i.productions[0], xpidl.Interface))
+        self.assertEqual("foo", i.productions[0].name)
+
+    def testAttributes(self):
+        i = self.p.parse(
+            "[scriptable, builtinclass, function, uuid(abc)] interface foo {};",
+            filename="f",
+        )
+        self.assertTrue(isinstance(i, xpidl.IDL))
+        self.assertTrue(isinstance(i.productions[0], xpidl.Interface))
+        iface = i.productions[0]
+        self.assertEqual("foo", iface.name)
+        self.assertTrue(iface.attributes.scriptable)
+        self.assertTrue(iface.attributes.builtinclass)
+        self.assertTrue(iface.attributes.function)
+
+        i = self.p.parse("[uuid(abc)] interface foo {};", filename="f")
+        self.assertTrue(isinstance(i, xpidl.IDL))
+        self.assertTrue(isinstance(i.productions[0], xpidl.Interface))
+        iface = i.productions[0]
+        self.assertEqual("foo", iface.name)
+        self.assertFalse(iface.attributes.scriptable)
+
+    def testMethod(self):
+        i = self.p.parse(
+            """[uuid(abc)] interface foo {
+void bar();
+};""",
+            filename="f",
+        )
+        self.assertTrue(isinstance(i, xpidl.IDL))
+        self.assertTrue(isinstance(i.productions[0], xpidl.Interface))
+        iface = i.productions[0]
+        m = iface.members[0]
+        self.assertTrue(isinstance(m, xpidl.Method))
+        self.assertEqual("bar", m.name)
+        self.assertEqual(xpidl.TypeId("void"), m.type)
+
+    def testMethodParams(self):
+        i = self.p.parse(
+            """
+        [scriptable, uuid(aaa)] interface nsISupports {};
+        [uuid(abc)] interface foo : nsISupports {
+          long bar(in long a, in float b, [array] in long c);
+        };""",
+            filename="f",
+        )
+        i.resolve([], self.p, {})
+        self.assertTrue(isinstance(i, xpidl.IDL))
+        self.assertTrue(isinstance(i.productions[1], xpidl.Interface))
+        iface = i.productions[1]
+        m = iface.members[0]
+        self.assertTrue(isinstance(m, xpidl.Method))
+        self.assertEqual("bar", m.name)
+        self.assertEqual(xpidl.TypeId("long"), m.type)
+        self.assertEqual(3, len(m.params))
+        self.assertEqual(xpidl.TypeId("long"), m.params[0].type)
+        self.assertEqual("in", m.params[0].paramtype)
+        self.assertEqual(xpidl.TypeId("float"), m.params[1].type)
+        self.assertEqual("in", m.params[1].paramtype)
+        self.assertEqual(xpidl.TypeId("long"), m.params[2].type)
+        self.assertEqual("in", m.params[2].paramtype)
+        self.assertTrue(isinstance(m.params[2].realtype, xpidl.LegacyArray))
+        self.assertEqual("long", m.params[2].realtype.type.name)
+
+    def testAttribute(self):
+        i = self.p.parse(
+            """[uuid(abc)] interface foo {
+attribute long bar;
+};""",
+            filename="f",
+        )
+        self.assertTrue(isinstance(i, xpidl.IDL))
+        self.assertTrue(isinstance(i.productions[0], xpidl.Interface))
+        iface = i.productions[0]
+        a = iface.members[0]
+        self.assertTrue(isinstance(a, xpidl.Attribute))
+        self.assertEqual("bar", a.name)
+        self.assertEqual(xpidl.TypeId("long"), a.type)
+
+    def testOverloadedVirtual(self):
+        i = self.p.parse(
+            """
+        [scriptable, uuid(00000000-0000-0000-0000-000000000000)] interface nsISupports {};
+        [uuid(abc)] interface foo : nsISupports {
+          attribute long bar;
+          void getBar();
+        };""",
+            filename="f",
+        )
+        self.assertTrue(isinstance(i, xpidl.IDL))
+        i.resolve([], self.p, {})
+
+        class FdMock:
+            def write(self, s):
+                pass
+
+        try:
+            header.print_header(i, FdMock(), filename="f", relpath="f")
+            self.assertTrue(False, "Header printing failed to fail")
+        except Exception as e:
+            self.assertEqual(
+                e.args[0],
+                "Unexpected overloaded virtual method GetBar in interface foo",
+            )
+
+    def testNotISupports(self):
+        i = self.p.parse(
+            """
+        [uuid(abc)] interface foo {};
+        """,
+            filename="f",
+        )
+        self.assertTrue(isinstance(i, xpidl.IDL))
+        try:
+            i.resolve([], self.p, {})
+            self.assertTrue(
+                False, "Must check that interfaces inherit from nsISupports"
+            )
+        except xpidl.IDLError as e:
+            self.assertEqual(e.args[0], "Interface 'foo' must inherit from nsISupports")
+
+    def testBuiltinClassParent(self):
+        i = self.p.parse(
+            """
+        [scriptable, uuid(aaa)] interface nsISupports {};
+        [scriptable, builtinclass, uuid(abc)] interface foo : nsISupports {};
+        [scriptable, uuid(def)] interface bar : foo {};
+        """,
+            filename="f",
+        )
+        self.assertTrue(isinstance(i, xpidl.IDL))
+        try:
+            i.resolve([], self.p, {})
+            self.assertTrue(
+                False, "non-builtinclasses can't inherit from builtinclasses"
+            )
+        except xpidl.IDLError as e:
+            self.assertEqual(
+                e.args[0],
+                "interface 'bar' is not builtinclass but derives from builtinclass 'foo'",
+            )
+
+    def testScriptableNotXPCOM(self):
+        # notxpcom method requires builtinclass on the interface
+        i = self.p.parse(
+            """
+        [scriptable, uuid(aaa)] interface nsISupports {};
+        [scriptable, uuid(abc)] interface nsIScriptableWithNotXPCOM : nsISupports {
+          [notxpcom] void method2();
+        };
+        """,
+            filename="f",
+        )
+        self.assertTrue(isinstance(i, xpidl.IDL))
+        try:
+            i.resolve([], self.p, {})
+            self.assertTrue(
+                False,
+                "Resolve should fail for non-builtinclasses with notxpcom methods",
+            )
+        except xpidl.IDLError as e:
+            self.assertEqual(
+                e.args[0],
+                (
+                    "scriptable interface 'nsIScriptableWithNotXPCOM' "
+                    "must be marked [builtinclass] because it contains a [notxpcom] "
+                    "method 'method2'"
+                ),
+            )
+
+        # notxpcom attribute requires builtinclass on the interface
+        i = self.p.parse(
+            """
+        interface nsISomeInterface;
+        [scriptable, uuid(aaa)] interface nsISupports {};
+        [scriptable, uuid(abc)] interface nsIScriptableWithNotXPCOM : nsISupports {
+          [notxpcom] attribute nsISomeInterface attrib;
+        };
+        """,
+            filename="f",
+        )
+        self.assertTrue(isinstance(i, xpidl.IDL))
+        try:
+            i.resolve([], self.p, {})
+            self.assertTrue(
+                False,
+                "Resolve should fail for non-builtinclasses with notxpcom attributes",
+            )
+        except xpidl.IDLError as e:
+            self.assertEqual(
+                e.args[0],
+                (
+                    "scriptable interface 'nsIScriptableWithNotXPCOM' must be marked "
+                    "[builtinclass] because it contains a [notxpcom] attribute 'attrib'"
+                ),
+            )
+
+    def testUndefinedConst(self):
+        i = self.p.parse(
+            """
+        [scriptable, uuid(aaa)] interface nsISupports {};
+        [scriptable, uuid(abc)] interface foo : nsISupports {
+          const unsigned long X = Y + 1;
+        };
+        """,
+            filename="f",
+        )
+        self.assertTrue(isinstance(i, xpidl.IDL))
+        try:
+            i.resolve([], self.p, {})
+            self.assertTrue(False, "Must detect undefined symbols")
+        except xpidl.IDLError as e:
+            self.assertEqual(e.args[0], ("cannot find symbol 'Y'"))
+
+
+if __name__ == "__main__":
+    mozunit.main(runwith="unittest")