[libvirt] [libvirt-test-api][PATCH 1/3] add new test case for getMemoryStats

[Luyao Huang]

Signed-off-by: Luyao Huang <lhuang at redhat.com>
---
 cases/test_connection.conf                 |  4 ++
 repos/virconn/connection_getMemoryStats.py | 96 ++++++++++++++++++++++++++++++
 2 files changed, 100 insertions(+)
 create mode 100644 repos/virconn/connection_getMemoryStats.py

diff --git a/cases/test_connection.conf b/cases/test_connection.conf
index 3c08a95..336b1ad 100644
--- a/cases/test_connection.conf
+++ b/cases/test_connection.conf
@@ -73,3 +73,7 @@ virconn:connection_getCellsFreeMemory
 virconn:connection_getMemoryParameters
     conn
         qemu:///system
+
+virconn:connection_getMemoryStats
+    conn
+        qemu:///system
diff --git a/repos/virconn/connection_getMemoryStats.py b/repos/virconn/connection_getMemoryStats.py
new file mode 100644
index 0000000..fcc146b
--- /dev/null
+++ b/repos/virconn/connection_getMemoryStats.py
@@ -0,0 +1,96 @@
+#!/usr/bin/env python
+import libvirt
+from libvirt import libvirtError
+from  utils import utils
+
+required_params = ()
+optional_params = {'conn': ''}
+
+NODE_ONLINE = '/sys/devices/system/node/online'
+MEMINFO = '/proc/meminfo'
+
+def getsysmem(a):
+    return open(a[0]).read().splitlines()[a[1]].split()[a[2]]
+
+def virtgetmem(a):
+    return a[0].getMemoryStats(a[1])[a[2]]
+
+def connection_getMemoryStats(params):
+    """
+       test API for getMemoryStats in class virConnect
+    """
+    logger = params['logger']
+    fail=0
+
+    nodeset = utils.file_read(NODE_ONLINE)
+    logger.info("host exist node is %s" % nodeset)
+
+    node_tuple = utils.param_to_tuple_nolength(nodeset)
+    if not node_tuple:
+        logger.info("error in function param_to_tuple_nolength")
+        return 1
+
+    try:
+        conn = libvirt.open(params['conn'])
+
+        logger.info("get connection cells memory status")
+        for n in range(len(node_tuple)):
+            if not node_tuple[n]:
+                continue
+
+            D = utils.get_standard_deviation(getsysmem, virtgetmem, \
+                ['/sys/devices/system/node/node%d/meminfo' % n,1,3], [conn,n,'free'])
+            logger.info("Standard Deviation for free memory in node %d is %d" % (n, D))
+            
+
+            """ expectations 177 is a average collected in a x86_64 low load machine"""
+            if D > 177*5:
+                fail=1
+                logger.info("FAIL: Standard Deviation is too big \
+                             (biger than %d) for node %d free memory" % (177*5, n))
+
+            a1 = ['/sys/devices/system/node/node%d/meminfo' % n, 0, 3]
+            a2 = [conn,n,'total']
+            if long(getsysmem(a1)) != long(virtgetmem(a2)):
+                fail=1
+                logger.info("FAIL: Total memory in node %d is not right" % n)
+
+
+        D = utils.get_standard_deviation(getsysmem, virtgetmem, \
+            [MEMINFO, 3, 1], [conn, -1, 'buffers'])
+        logger.info("Standard Deviation for host buffers is %d" % D)
+
+        """ expectations 30 is a average collected in a x86_64 low load machine"""
+        if D > 30*5:
+            fail=1
+            logger.info("FAIL: Standard Deviation is too big \
+                         (biger than %d) for host buffers" % 30*5)
+
+        D = utils.get_standard_deviation(getsysmem, virtgetmem, \
+            [MEMINFO,4,1], [conn,-1,'cached'])
+        logger.info("Standard Deviation for host cached is %d" % D)
+
+        """ expectations 32 is a average collected in a x86_64 low load machine"""
+        if D > 32*5:
+            fail=1
+            logger.info("FAIL: Standard Deviation is too big \
+                         (biger than %d) for host cached" % 32*5)
+
+        D = utils.get_standard_deviation(getsysmem, virtgetmem, \
+            [MEMINFO,1,1], [conn,-1,'free'])
+        logger.info("Standard Deviation for host free memory is %d" % D)
+
+        """ expectations 177 is a average collected in a x86_64 low load machine"""
+        if D > 177*5:
+            fail=1
+            logger.info("FAIL: Standard Deviation is too big \
+                         (biger than %d) for host free memory" % 177*5)
+
+        if long(getsysmem([MEMINFO,0,1])) != long(virtgetmem([conn,-1,'total'])):
+            fail=1
+            logger.info("FAIL: Total memory for host is not right" % n)
+
+    except libvirtError, e:
+        logger.error("API error message: %s" % e.message)
+        fail=1
+    return fail
-- 
1.8.3.1