X-Git-Url: https://code.grnet.gr/git/ganeti-local/blobdiff_plain/f863d7aad52ad89828dadd7e03d4329b62f688c8..02cccecd04877e81b5073a2599de0ac0bbd97454:/test/ganeti.rpc_unittest.py diff --git a/test/ganeti.rpc_unittest.py b/test/ganeti.rpc_unittest.py index 7eb529b..a59c388 100755 --- a/test/ganeti.rpc_unittest.py +++ b/test/ganeti.rpc_unittest.py @@ -1,7 +1,7 @@ #!/usr/bin/python # -# Copyright (C) 2010, 2011 Google Inc. +# Copyright (C) 2010, 2011, 2012 Google Inc. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by @@ -24,16 +24,21 @@ import os import sys import unittest +import random +import tempfile from ganeti import constants from ganeti import compat from ganeti import rpc +from ganeti import rpc_defs from ganeti import http from ganeti import errors from ganeti import serializer from ganeti import objects +from ganeti import backend import testutils +import mocks class _FakeRequestProcessor: @@ -56,6 +61,13 @@ def GetFakeSimpleStoreClass(fn): return FakeSimpleStore +def _RaiseNotImplemented(): + """Simple wrapper to raise NotImplementedError. + + """ + raise NotImplementedError + + class TestRpcProcessor(unittest.TestCase): def _FakeAddressLookup(self, map): return lambda node_list: [map.get(node) for node in node_list] @@ -64,7 +76,7 @@ class TestRpcProcessor(unittest.TestCase): self.assertEqual(req.host, "127.0.0.1") self.assertEqual(req.port, 24094) self.assertEqual(req.path, "/version") - self.assertEqual(req.read_timeout, rpc._TMO_URGENT) + self.assertEqual(req.read_timeout, constants.RPC_TMO_URGENT) req.success = True req.resp_status_code = http.HTTP_OK req.resp_body = serializer.DumpJson((True, 123)) @@ -74,7 +86,7 @@ class TestRpcProcessor(unittest.TestCase): http_proc = _FakeRequestProcessor(self._GetVersionResponse) proc = rpc._RpcProcessor(resolver, 24094) result = proc(["localhost"], "version", {"localhost": ""}, 60, - _req_process_fn=http_proc) + NotImplemented, _req_process_fn=http_proc) self.assertEqual(result.keys(), ["localhost"]) lhresp = result["localhost"] self.assertFalse(lhresp.offline) @@ -100,7 +112,8 @@ class TestRpcProcessor(unittest.TestCase): proc = rpc._RpcProcessor(resolver, 19176) host = "node31856" body = {host: ""} - result = proc([host], "version", body, 12356, _req_process_fn=http_proc) + result = proc([host], "version", body, 12356, NotImplemented, + _req_process_fn=http_proc) self.assertEqual(result.keys(), [host]) lhresp = result[host] self.assertFalse(lhresp.offline) @@ -117,7 +130,8 @@ class TestRpcProcessor(unittest.TestCase): proc = rpc._RpcProcessor(resolver, 30668) host = "n17296" body = {host: ""} - result = proc([host], "version", body, 60, _req_process_fn=http_proc) + result = proc([host], "version", body, 60, NotImplemented, + _req_process_fn=http_proc) self.assertEqual(result.keys(), [host]) lhresp = result[host] self.assertTrue(lhresp.offline) @@ -148,7 +162,8 @@ class TestRpcProcessor(unittest.TestCase): resolver = rpc._StaticResolver(nodes) http_proc = _FakeRequestProcessor(self._GetMultiVersionResponse) proc = rpc._RpcProcessor(resolver, 23245) - result = proc(nodes, "version", body, 60, _req_process_fn=http_proc,) + result = proc(nodes, "version", body, 60, NotImplemented, + _req_process_fn=http_proc) self.assertEqual(sorted(result.keys()), sorted(nodes)) for name in nodes: @@ -177,7 +192,7 @@ class TestRpcProcessor(unittest.TestCase): errinfo)) host = "aef9ur4i.example.com" body = {host: ""} - result = proc(body.keys(), "version", body, 60, + result = proc(body.keys(), "version", body, 60, NotImplemented, _req_process_fn=http_proc) self.assertEqual(result.keys(), [host]) lhresp = result[host] @@ -227,7 +242,8 @@ class TestRpcProcessor(unittest.TestCase): http_proc = \ _FakeRequestProcessor(compat.partial(self._GetHttpErrorResponse, httperrnodes, failnodes)) - result = proc(nodes, "vg_list", body, rpc._TMO_URGENT, + result = proc(nodes, "vg_list", body, + constants.RPC_TMO_URGENT, NotImplemented, _req_process_fn=http_proc) self.assertEqual(sorted(result.keys()), sorted(nodes)) @@ -272,7 +288,7 @@ class TestRpcProcessor(unittest.TestCase): http_proc = _FakeRequestProcessor(fn) host = "oqo7lanhly.example.com" body = {host: ""} - result = proc([host], "version", body, 60, + result = proc([host], "version", body, 60, NotImplemented, _req_process_fn=http_proc) self.assertEqual(result.keys(), [host]) lhresp = result[host] @@ -304,7 +320,8 @@ class TestRpcProcessor(unittest.TestCase): proc = rpc._RpcProcessor(resolver, 18700) host = "node19759" body = {host: serializer.DumpJson(test_data)} - result = proc([host], "upload_file", body, 30, _req_process_fn=http_proc) + result = proc([host], "upload_file", body, 30, NotImplemented, + _req_process_fn=http_proc) self.assertEqual(result.keys(), [host]) lhresp = result[host] self.assertFalse(lhresp.offline) @@ -322,7 +339,8 @@ class TestSsconfResolver(unittest.TestCase): node_list = ["node%d.example.com" % n for n in range(0, 255, 13)] node_addr_list = [" ".join(t) for t in zip(node_list, addr_list)] ssc = GetFakeSimpleStoreClass(lambda _: node_addr_list) - result = rpc._SsconfResolver(node_list, ssc=ssc, nslookup_fn=NotImplemented) + result = rpc._SsconfResolver(True, node_list, NotImplemented, + ssc=ssc, nslookup_fn=NotImplemented) self.assertEqual(result, zip(node_list, addr_list)) def testNsLookup(self): @@ -331,7 +349,18 @@ class TestSsconfResolver(unittest.TestCase): ssc = GetFakeSimpleStoreClass(lambda _: []) node_addr_map = dict(zip(node_list, addr_list)) nslookup_fn = lambda name, family=None: node_addr_map.get(name) - result = rpc._SsconfResolver(node_list, ssc=ssc, nslookup_fn=nslookup_fn) + result = rpc._SsconfResolver(True, node_list, NotImplemented, + ssc=ssc, nslookup_fn=nslookup_fn) + self.assertEqual(result, zip(node_list, addr_list)) + + def testDisabledSsconfIp(self): + addr_list = ["192.0.2.%d" % n for n in range(0, 255, 13)] + node_list = ["node%d.example.com" % n for n in range(0, 255, 13)] + ssc = GetFakeSimpleStoreClass(_RaiseNotImplemented) + node_addr_map = dict(zip(node_list, addr_list)) + nslookup_fn = lambda name, family=None: node_addr_map.get(name) + result = rpc._SsconfResolver(False, node_list, NotImplemented, + ssc=ssc, nslookup_fn=nslookup_fn) self.assertEqual(result, zip(node_list, addr_list)) def testBothLookups(self): @@ -342,7 +371,8 @@ class TestSsconfResolver(unittest.TestCase): ssc = GetFakeSimpleStoreClass(lambda _: node_addr_list) node_addr_map = dict(zip(node_list[:n], addr_list[:n])) nslookup_fn = lambda name, family=None: node_addr_map.get(name) - result = rpc._SsconfResolver(node_list, ssc=ssc, nslookup_fn=nslookup_fn) + result = rpc._SsconfResolver(True, node_list, NotImplemented, + ssc=ssc, nslookup_fn=nslookup_fn) self.assertEqual(result, zip(node_list, addr_list)) def testAddressLookupIPv6(self): @@ -350,7 +380,8 @@ class TestSsconfResolver(unittest.TestCase): node_list = ["node%d.example.com" % n for n in range(0, 255, 11)] node_addr_list = [" ".join(t) for t in zip(node_list, addr_list)] ssc = GetFakeSimpleStoreClass(lambda _: node_addr_list) - result = rpc._SsconfResolver(node_list, ssc=ssc, nslookup_fn=NotImplemented) + result = rpc._SsconfResolver(True, node_list, NotImplemented, + ssc=ssc, nslookup_fn=NotImplemented) self.assertEqual(result, zip(node_list, addr_list)) @@ -359,11 +390,11 @@ class TestStaticResolver(unittest.TestCase): addresses = ["192.0.2.%d" % n for n in range(0, 123, 7)] nodes = ["node%s.example.com" % n for n in range(0, 123, 7)] res = rpc._StaticResolver(addresses) - self.assertEqual(res(nodes), zip(nodes, addresses)) + self.assertEqual(res(nodes, NotImplemented), zip(nodes, addresses)) def testWrongLength(self): res = rpc._StaticResolver([]) - self.assertRaises(AssertionError, res, ["abc"]) + self.assertRaises(AssertionError, res, ["abc"], NotImplemented) class TestNodeConfigResolver(unittest.TestCase): @@ -380,24 +411,35 @@ class TestNodeConfigResolver(unittest.TestCase): def testSingleOnline(self): self.assertEqual(rpc._NodeConfigResolver(self._GetSingleOnlineNode, NotImplemented, - ["node90.example.com"]), + ["node90.example.com"], None), [("node90.example.com", "192.0.2.90")]) def testSingleOffline(self): self.assertEqual(rpc._NodeConfigResolver(self._GetSingleOfflineNode, NotImplemented, - ["node100.example.com"]), + ["node100.example.com"], None), [("node100.example.com", rpc._OFFLINE)]) + def testSingleOfflineWithAcceptOffline(self): + fn = self._GetSingleOfflineNode + assert fn("node100.example.com").offline + self.assertEqual(rpc._NodeConfigResolver(fn, NotImplemented, + ["node100.example.com"], + rpc_defs.ACCEPT_OFFLINE_NODE), + [("node100.example.com", "192.0.2.100")]) + for i in [False, True, "", "Hello", 0, 1]: + self.assertRaises(AssertionError, rpc._NodeConfigResolver, + fn, NotImplemented, ["node100.example.com"], i) + def testUnknownSingleNode(self): self.assertEqual(rpc._NodeConfigResolver(lambda _: None, NotImplemented, - ["node110.example.com"]), + ["node110.example.com"], None), [("node110.example.com", "node110.example.com")]) def testMultiEmpty(self): self.assertEqual(rpc._NodeConfigResolver(NotImplemented, lambda: {}, - []), + [], None), []) def testMultiSomeOffline(self): @@ -410,7 +452,7 @@ class TestNodeConfigResolver(unittest.TestCase): # Resolve no names self.assertEqual(rpc._NodeConfigResolver(NotImplemented, lambda: nodes, - []), + [], None), []) # Offline, online and unknown hosts @@ -419,7 +461,8 @@ class TestNodeConfigResolver(unittest.TestCase): ["node3.example.com", "node92.example.com", "node54.example.com", - "unknown.example.com",]), [ + "unknown.example.com",], + None), [ ("node3.example.com", rpc._OFFLINE), ("node92.example.com", "192.0.2.92"), ("node54.example.com", rpc._OFFLINE), @@ -427,5 +470,405 @@ class TestNodeConfigResolver(unittest.TestCase): ]) +class TestCompress(unittest.TestCase): + def test(self): + for data in ["", "Hello", "Hello World!\nnew\nlines"]: + self.assertEqual(rpc._Compress(data), + (constants.RPC_ENCODING_NONE, data)) + + for data in [512 * " ", 5242 * "Hello World!\n"]: + compressed = rpc._Compress(data) + self.assertEqual(len(compressed), 2) + self.assertEqual(backend._Decompress(compressed), data) + + def testDecompression(self): + self.assertRaises(AssertionError, backend._Decompress, "") + self.assertRaises(AssertionError, backend._Decompress, [""]) + self.assertRaises(AssertionError, backend._Decompress, + ("unknown compression", "data")) + self.assertRaises(Exception, backend._Decompress, + (constants.RPC_ENCODING_ZLIB_BASE64, "invalid zlib data")) + + +class TestRpcClientBase(unittest.TestCase): + def testNoHosts(self): + cdef = ("test_call", NotImplemented, None, constants.RPC_TMO_SLOW, [], + None, None, NotImplemented) + http_proc = _FakeRequestProcessor(NotImplemented) + client = rpc._RpcClientBase(rpc._StaticResolver([]), NotImplemented, + _req_process_fn=http_proc) + self.assertEqual(client._Call(cdef, [], []), {}) + + # Test wrong number of arguments + self.assertRaises(errors.ProgrammerError, client._Call, + cdef, [], [0, 1, 2]) + + def testTimeout(self): + def _CalcTimeout((arg1, arg2)): + return arg1 + arg2 + + def _VerifyRequest(exp_timeout, req): + self.assertEqual(req.read_timeout, exp_timeout) + + req.success = True + req.resp_status_code = http.HTTP_OK + req.resp_body = serializer.DumpJson((True, hex(req.read_timeout))) + + resolver = rpc._StaticResolver([ + "192.0.2.1", + "192.0.2.2", + ]) + + nodes = [ + "node1.example.com", + "node2.example.com", + ] + + tests = [(100, None, 100), (30, None, 30)] + tests.extend((_CalcTimeout, i, i + 300) + for i in [0, 5, 16485, 30516]) + + for timeout, arg1, exp_timeout in tests: + cdef = ("test_call", NotImplemented, None, timeout, [ + ("arg1", None, NotImplemented), + ("arg2", None, NotImplemented), + ], None, None, NotImplemented) + + http_proc = _FakeRequestProcessor(compat.partial(_VerifyRequest, + exp_timeout)) + client = rpc._RpcClientBase(resolver, NotImplemented, + _req_process_fn=http_proc) + result = client._Call(cdef, nodes, [arg1, 300]) + self.assertEqual(len(result), len(nodes)) + self.assertTrue(compat.all(not res.fail_msg and + res.payload == hex(exp_timeout) + for res in result.values())) + + def testArgumentEncoder(self): + (AT1, AT2) = range(1, 3) + + resolver = rpc._StaticResolver([ + "192.0.2.5", + "192.0.2.6", + ]) + + nodes = [ + "node5.example.com", + "node6.example.com", + ] + + encoders = { + AT1: hex, + AT2: hash, + } + + cdef = ("test_call", NotImplemented, None, constants.RPC_TMO_NORMAL, [ + ("arg0", None, NotImplemented), + ("arg1", AT1, NotImplemented), + ("arg1", AT2, NotImplemented), + ], None, None, NotImplemented) + + def _VerifyRequest(req): + req.success = True + req.resp_status_code = http.HTTP_OK + req.resp_body = serializer.DumpJson((True, req.post_data)) + + http_proc = _FakeRequestProcessor(_VerifyRequest) + + for num in [0, 3796, 9032119]: + client = rpc._RpcClientBase(resolver, encoders.get, + _req_process_fn=http_proc) + result = client._Call(cdef, nodes, ["foo", num, "Hello%s" % num]) + self.assertEqual(len(result), len(nodes)) + for res in result.values(): + self.assertFalse(res.fail_msg) + self.assertEqual(serializer.LoadJson(res.payload), + ["foo", hex(num), hash("Hello%s" % num)]) + + def testPostProc(self): + def _VerifyRequest(nums, req): + req.success = True + req.resp_status_code = http.HTTP_OK + req.resp_body = serializer.DumpJson((True, nums)) + + resolver = rpc._StaticResolver([ + "192.0.2.90", + "192.0.2.95", + ]) + + nodes = [ + "node90.example.com", + "node95.example.com", + ] + + def _PostProc(res): + self.assertFalse(res.fail_msg) + res.payload = sum(res.payload) + return res + + cdef = ("test_call", NotImplemented, None, constants.RPC_TMO_NORMAL, [], + None, _PostProc, NotImplemented) + + # Seeded random generator + rnd = random.Random(20299) + + for i in [0, 4, 74, 1391]: + nums = [rnd.randint(0, 1000) for _ in range(i)] + http_proc = _FakeRequestProcessor(compat.partial(_VerifyRequest, nums)) + client = rpc._RpcClientBase(resolver, NotImplemented, + _req_process_fn=http_proc) + result = client._Call(cdef, nodes, []) + self.assertEqual(len(result), len(nodes)) + for res in result.values(): + self.assertFalse(res.fail_msg) + self.assertEqual(res.payload, sum(nums)) + + def testPreProc(self): + def _VerifyRequest(req): + req.success = True + req.resp_status_code = http.HTTP_OK + req.resp_body = serializer.DumpJson((True, req.post_data)) + + resolver = rpc._StaticResolver([ + "192.0.2.30", + "192.0.2.35", + ]) + + nodes = [ + "node30.example.com", + "node35.example.com", + ] + + def _PreProc(node, data): + self.assertEqual(len(data), 1) + return data[0] + node + + cdef = ("test_call", NotImplemented, None, constants.RPC_TMO_NORMAL, [ + ("arg0", None, NotImplemented), + ], _PreProc, None, NotImplemented) + + http_proc = _FakeRequestProcessor(_VerifyRequest) + client = rpc._RpcClientBase(resolver, NotImplemented, + _req_process_fn=http_proc) + + for prefix in ["foo", "bar", "baz"]: + result = client._Call(cdef, nodes, [prefix]) + self.assertEqual(len(result), len(nodes)) + for (idx, (node, res)) in enumerate(result.items()): + self.assertFalse(res.fail_msg) + self.assertEqual(serializer.LoadJson(res.payload), prefix + node) + + def testResolverOptions(self): + def _VerifyRequest(req): + req.success = True + req.resp_status_code = http.HTTP_OK + req.resp_body = serializer.DumpJson((True, req.post_data)) + + nodes = [ + "node30.example.com", + "node35.example.com", + ] + + def _Resolver(expected, hosts, options): + self.assertEqual(hosts, nodes) + self.assertEqual(options, expected) + return zip(hosts, nodes) + + def _DynamicResolverOptions((arg0, )): + return sum(arg0) + + tests = [ + (None, None, None), + (rpc_defs.ACCEPT_OFFLINE_NODE, None, rpc_defs.ACCEPT_OFFLINE_NODE), + (False, None, False), + (True, None, True), + (0, None, 0), + (_DynamicResolverOptions, [1, 2, 3], 6), + (_DynamicResolverOptions, range(4, 19), 165), + ] + + for (resolver_opts, arg0, expected) in tests: + cdef = ("test_call", NotImplemented, resolver_opts, + constants.RPC_TMO_NORMAL, [ + ("arg0", None, NotImplemented), + ], None, None, NotImplemented) + + http_proc = _FakeRequestProcessor(_VerifyRequest) + + client = rpc._RpcClientBase(compat.partial(_Resolver, expected), + NotImplemented, _req_process_fn=http_proc) + result = client._Call(cdef, nodes, [arg0]) + self.assertEqual(len(result), len(nodes)) + for (idx, (node, res)) in enumerate(result.items()): + self.assertFalse(res.fail_msg) + + +class _FakeConfigForRpcRunner: + GetAllNodesInfo = NotImplemented + + def __init__(self, cluster=NotImplemented): + self._cluster = cluster + + def GetNodeInfo(self, name): + return objects.Node(name=name) + + def GetClusterInfo(self): + return self._cluster + + def GetInstanceDiskParams(self, _): + return constants.DISK_DT_DEFAULTS + + +class TestRpcRunner(unittest.TestCase): + def testUploadFile(self): + data = 1779 * "Hello World\n" + + tmpfile = tempfile.NamedTemporaryFile() + tmpfile.write(data) + tmpfile.flush() + st = os.stat(tmpfile.name) + + def _VerifyRequest(req): + (uldata, ) = serializer.LoadJson(req.post_data) + self.assertEqual(len(uldata), 7) + self.assertEqual(uldata[0], tmpfile.name) + self.assertEqual(list(uldata[1]), list(rpc._Compress(data))) + self.assertEqual(uldata[2], st.st_mode) + self.assertEqual(uldata[3], "user%s" % os.getuid()) + self.assertEqual(uldata[4], "group%s" % os.getgid()) + self.assertTrue(uldata[5] is not None) + self.assertEqual(uldata[6], st.st_mtime) + + req.success = True + req.resp_status_code = http.HTTP_OK + req.resp_body = serializer.DumpJson((True, None)) + + http_proc = _FakeRequestProcessor(_VerifyRequest) + + std_runner = rpc.RpcRunner(_FakeConfigForRpcRunner(), None, + _req_process_fn=http_proc, + _getents=mocks.FakeGetentResolver) + + cfg_runner = rpc.ConfigRunner(None, ["192.0.2.13"], + _req_process_fn=http_proc, + _getents=mocks.FakeGetentResolver) + + nodes = [ + "node1.example.com", + ] + + for runner in [std_runner, cfg_runner]: + result = runner.call_upload_file(nodes, tmpfile.name) + self.assertEqual(len(result), len(nodes)) + for (idx, (node, res)) in enumerate(result.items()): + self.assertFalse(res.fail_msg) + + def testEncodeInstance(self): + cluster = objects.Cluster(hvparams={ + constants.HT_KVM: { + constants.HV_BLOCKDEV_PREFIX: "foo", + }, + }, + beparams={ + constants.PP_DEFAULT: { + constants.BE_MAXMEM: 8192, + }, + }, + os_hvp={}, + osparams={ + "linux": { + "role": "unknown", + }, + }) + cluster.UpgradeConfig() + + inst = objects.Instance(name="inst1.example.com", + hypervisor=constants.HT_FAKE, + os="linux", + hvparams={ + constants.HT_KVM: { + constants.HV_BLOCKDEV_PREFIX: "bar", + constants.HV_ROOT_PATH: "/tmp", + }, + }, + beparams={ + constants.BE_MINMEM: 128, + constants.BE_MAXMEM: 256, + }, + nics=[ + objects.NIC(nicparams={ + constants.NIC_MODE: "mymode", + }), + ], + disk_template=constants.DT_DISKLESS, + disks=[]) + inst.UpgradeConfig() + + cfg = _FakeConfigForRpcRunner(cluster=cluster) + runner = rpc.RpcRunner(cfg, None, + _req_process_fn=NotImplemented, + _getents=mocks.FakeGetentResolver) + + def _CheckBasics(result): + self.assertEqual(result["name"], "inst1.example.com") + self.assertEqual(result["os"], "linux") + self.assertEqual(result["beparams"][constants.BE_MINMEM], 128) + self.assertEqual(len(result["hvparams"]), 1) + self.assertEqual(len(result["nics"]), 1) + self.assertEqual(result["nics"][0]["nicparams"][constants.NIC_MODE], + "mymode") + + # Generic object serialization + result = runner._encoder((rpc_defs.ED_OBJECT_DICT, inst)) + _CheckBasics(result) + + result = runner._encoder((rpc_defs.ED_OBJECT_DICT_LIST, 5 * [inst])) + map(_CheckBasics, result) + + # Just an instance + result = runner._encoder((rpc_defs.ED_INST_DICT, inst)) + _CheckBasics(result) + self.assertEqual(result["beparams"][constants.BE_MAXMEM], 256) + self.assertEqual(result["hvparams"][constants.HT_KVM], { + constants.HV_BLOCKDEV_PREFIX: "bar", + constants.HV_ROOT_PATH: "/tmp", + }) + self.assertEqual(result["osparams"], { + "role": "unknown", + }) + + # Instance with OS parameters + result = runner._encoder((rpc_defs.ED_INST_DICT_OSP_DP, (inst, { + "role": "webserver", + "other": "field", + }))) + _CheckBasics(result) + self.assertEqual(result["beparams"][constants.BE_MAXMEM], 256) + self.assertEqual(result["hvparams"][constants.HT_KVM], { + constants.HV_BLOCKDEV_PREFIX: "bar", + constants.HV_ROOT_PATH: "/tmp", + }) + self.assertEqual(result["osparams"], { + "role": "webserver", + "other": "field", + }) + + # Instance with hypervisor and backend parameters + result = runner._encoder((rpc_defs.ED_INST_DICT_HVP_BEP, (inst, { + constants.HT_KVM: { + constants.HV_BOOT_ORDER: "xyz", + }, + }, { + constants.BE_VCPUS: 100, + constants.BE_MAXMEM: 4096, + }))) + _CheckBasics(result) + self.assertEqual(result["beparams"][constants.BE_MAXMEM], 4096) + self.assertEqual(result["beparams"][constants.BE_VCPUS], 100) + self.assertEqual(result["hvparams"][constants.HT_KVM], { + constants.HV_BOOT_ORDER: "xyz", + }) + + if __name__ == "__main__": testutils.GanetiTestProgram()