[dts] [PATCH V1] tests:add test suite about loadbalancer

[changqingxwu <changqingx.wu@intel.com>]

Signed-off-by: changqingxwu <changqingx.wu@intel.com>
---
 tests/TestSuite_loadbalancer.py | 104 ++++++++++++++++++++++++++++++++
 1 file changed, 104 insertions(+)
 create mode 100644 tests/TestSuite_loadbalancer.py

diff --git a/tests/TestSuite_loadbalancer.py b/tests/TestSuite_loadbalancer.py
new file mode 100644
index 0000000..620dbdc
--- /dev/null
+++ b/tests/TestSuite_loadbalancer.py
@@ -0,0 +1,104 @@
+# <COPYRIGHT_TAG>
+
+"""
+DPDK Test suite.
+
+Test Load Balancer.
+
+"""
+
+import dts
+from packet import Packet
+from test_case import TestCase
+import time
+
+
+class TestLoadbalancer(TestCase):
+
+    def set_up_all(self):
+        """
+        Run at the start of each test suite.
+
+        Load Balancer prerequisites.
+        """
+        # Verify that enough ports are available
+        global dutPorts
+        # Based on h/w type, choose how many ports to use
+        dutPorts = self.dut.get_ports(self.nic)
+
+        # Verify that enough ports are available
+        self.verify(len(dutPorts) >= 4, "Insufficient ports for testing")
+
+        global P0, P1, P2, P3, trafficFlow
+        P0 = self.tester.get_local_port(dutPorts[0])
+        P1 = self.tester.get_local_port(dutPorts[1])
+        P2 = self.tester.get_local_port(dutPorts[2])
+        P3 = self.tester.get_local_port(dutPorts[3])
+
+        trafficFlow = {
+            "F1": [P0, "1.0.0.1"],
+            "F2": [P1, "1.0.1.1"],
+            "F3": [P2, "1.0.2.1"],
+            "F4": [P3, "1.0.3.1"],
+        }
+
+        out = self.dut.send_expect("make -C examples/load_balancer", "#")
+        self.verify("Error" not in out, "compilation error 1")
+        self.verify("No such file" not in out, "compilation error 2")
+
+    def set_up(self):
+        """
+        Run before each test case.
+        """
+        pass
+
+    def test_load_balancer(self):
+        """
+        Verify Load Balancer run successfully
+        """
+        cmd = './examples/load_balancer/build/load_balancer -l 3-7 -n 4 -- --rx "(0,0,3),(1,0,3),(2,0,3),(3,0,3)" ' \
+              '--tx "(0,3),(1,3),(2,3),(3,3)" --w "4,5,6,7" ' \
+              '--lpm "1.0.0.0/24=>0;1.0.1.0/24=>1;1.0.2.0/24=>2;1.0.3.0/24=>3;' \
+              '" --bsz "(10, 10), (10, 10), (10, 10)" --pos-lb 29'
+
+        self.dut.send_expect(cmd, 'main loop.')
+
+        for flow in trafficFlow.keys():
+            rx_port = trafficFlow[flow][0]
+
+            for i in range(len(dutPorts)):
+                dstport = self.tester.get_local_port(dutPorts[i])
+                pkt_count = 10
+                inst = self.tester.tcpdump_sniff_packets(intf=self.tester.get_interface(rx_port), timeout=10, count=pkt_count)
+
+                pkt = Packet()
+                dst_mac = self.dut.get_mac_address(dutPorts[rx_port-5])
+                pkt.config_layer('ether', {'dst': dst_mac})
+                pkt.config_layer('ipv4', {'src': "0.0.0.0", 'dst': trafficFlow[flow][1]})
+                pkt.send_pkt(tx_port=self.tester.get_interface(dstport), count=10)
+                time.sleep(5)  # Wait for the sniffer to finish.
+
+                pkts = self.tester.load_tcpdump_sniff_packets(inst)
+                len_pkts = len(pkts)
+
+                if len_pkts == pkt_count:
+                    result = str([pkts[i].pktgen.pkt.show for i in range(len_pkts)])
+                    self.verify("Ether" in result, "No packet received")
+                    self.verify("src=0.0.0.0" + " dst=" + trafficFlow[flow][1] in result, "Wrong IP address")
+                    self.verify("dst=%s" % dst_mac in result, "Recive wrong packet")
+                else:
+                    self.verify("dst=01:00" not in dst_mac, "Packet arrived on an unexpected port")
+
+        self.dut.send_expect("^C", "#")
+
+    def tear_down(self):
+        """
+        Run after each test case.
+        """
+        pass
+
+    def tear_down_all(self):
+        """
+        Run after each test suite.
+        """
+        pass
-- 
2.17.2