s4-pidl: added a test for all generated rpc interfaces

this tries to instantiate all types in all generated python RPC
interfaces, then checks that all attributes can be read, written and
compared.

source4/scripting/python/samba/tests/dcerpc/testrpc.py

@@ -0,0 +1,113 @@
+#!/usr/bin/env python
+#
+# test generated python code from pidl
+# Andrew Tridgell August 2010
+#
+import sys
+
+sys.path.insert(0, "bin/python")
+
+import samba
+import samba.tests
+from samba.dcerpc import drsuapi
+
+samba.talloc_enable_null_tracking()
+
+class RpcTests(samba.tests.TestCase):
+    '''test type behaviour of pidl generated python RPC code'''
+
+    def check_blocks(self, object, num_expected):
+        '''check that the number of allocated blocks is correct'''
+        nblocks = samba.talloc_total_blocks(object)
+        if object is None:
+            nblocks -= self.initial_blocks
+        self.assertEquals(nblocks, num_expected)
+
+    def check_type(self, interface, typename, type):
+        print "Checking type %s" % typename
+        v = type()
+        for n in dir(v):
+            if n[0] == '_':
+                continue
+            try:
+                value = getattr(v, n)
+            except TypeError, errstr:
+                if str(errstr) == "unknown union level":
+                    print "ERROR: Unknown union level in %s.%s" % (typename, n)
+                    self.errcount += 1
+                    continue
+                print str(errstr)[1:21]
+                if str(errstr)[0:21] == "Can not convert C Type":
+                    print "ERROR: Unknown C type for %s.%s" % (typename, n)
+                    self.errcount += 1
+                    continue
+                else:
+                    print "ERROR: Failed to instantiate %s.%s" % (typename, n)
+                    raise
+            except:
+                print "ERROR: Failed to instantiate %s.%s" % (typename, n)
+                raise
+
+            # now try setting the value back
+            try:
+                print "Setting %s.%s" % (typename, n)
+                setattr(v, n, value)
+            except:
+                print "ERROR: Failed to set %s.%s" % (typename, n)
+                raise
+
+            # and try a comparison
+            try:
+                if value != getattr(v, n):
+                    print "ERROR: Comparison failed for %s.%s" % (typename, n)
+                    raise
+            except:
+                print "ERROR: compare exception for %s.%s" % (typename, n)
+                raise
+
+
+    def check_interface(self, interface, iname):
+        errcount = self.errcount
+        for n in dir(interface):
+            if n[0] == '_' or n == iname:
+                # skip the special ones
+                continue
+            value = getattr(interface, n)
+            if isinstance(value, str):
+                #print "%s=\"%s\"" % (n, value)
+                pass
+            elif isinstance(value, int):
+                #print "%s=%d" % (n, value)
+                pass
+            elif isinstance(value, type):
+                try:
+                    initial_blocks = samba.talloc_total_blocks(None)
+                    self.check_type(interface, n, value)
+                    self.check_blocks(None, initial_blocks)
+                except:
+                    print "ERROR: Failed to check_type %s.%s" % (iname, n)
+                    self.errcount += 1
+                    pass
+            else:
+                print "UNKNOWN: %s=%s" % (n, value)
+        if self.errcount - errcount != 0:
+            print "Found %d errors in %s" % (self.errcount - errcount, iname)
+
+
+    def check_all_interfaces(self):
+        for iname in dir(samba.dcerpc):
+            if iname[0] == '_':
+                continue
+            if iname == 'ClientConnection' or iname == 'base':
+                continue
+            print "Checking interface %s" % iname
+            iface = getattr(samba.dcerpc, iname)
+            initial_blocks = samba.talloc_total_blocks(None)
+            self.check_interface(iface, iname)
+            self.check_blocks(None, initial_blocks)
+
+    def test_run(self):
+        self.initial_blocks = samba.talloc_total_blocks(None)
+        self.errcount = 0
+        self.check_all_interfaces()
+        self.assertEquals(self.errcount, 0)