[libvirt-test-API][PATCH 2/2] Add connection_getAllDomainStats test case

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The case will validate the getAllDomainStats API in class virConnect
---
 repos/virconn/connection_getAllDomainStats.py | 528 ++++++++++++++++++++++++++
 1 file changed, 528 insertions(+)
 create mode 100644 repos/virconn/connection_getAllDomainStats.py

diff --git a/repos/virconn/connection_getAllDomainStats.py b/repos/virconn/connection_getAllDomainStats.py
new file mode 100644
index 0000000..023564a
--- /dev/null
+++ b/repos/virconn/connection_getAllDomainStats.py
@@ -0,0 +1,528 @@
+#!/usr/bin/env python
+# test getAllDomainStats() API for libvirt
+
+import libvirt
+
+from xml.dom import minidom
+from libvirt import libvirtError
+from src import sharedmod
+from utils import utils
+
+required_params = ()
+optional_params = {'stats': '','flags': ''}
+
+ds = {"state": libvirt.VIR_DOMAIN_STATS_STATE,
+      "cpu": libvirt.VIR_DOMAIN_STATS_CPU_TOTAL,
+      "balloon": libvirt.VIR_DOMAIN_STATS_BALLOON,
+      "vcpu": libvirt.VIR_DOMAIN_STATS_VCPU,
+      "interface": libvirt.VIR_DOMAIN_STATS_INTERFACE,
+      "block": libvirt.VIR_DOMAIN_STATS_BLOCK}
+
+fg = {"active": libvirt.VIR_CONNECT_GET_ALL_DOMAINS_STATS_ACTIVE,
+      "inactive": libvirt.VIR_CONNECT_GET_ALL_DOMAINS_STATS_INACTIVE,
+      "persistent": libvirt.VIR_CONNECT_GET_ALL_DOMAINS_STATS_PERSISTENT,
+      "transient": libvirt.VIR_CONNECT_GET_ALL_DOMAINS_STATS_TRANSIENT,
+      "running": libvirt.VIR_CONNECT_GET_ALL_DOMAINS_STATS_RUNNING,
+      "paused": libvirt.VIR_CONNECT_GET_ALL_DOMAINS_STATS_PAUSED,
+      "shutoff": libvirt.VIR_CONNECT_GET_ALL_DOMAINS_STATS_SHUTOFF,
+      "other": libvirt.VIR_CONNECT_GET_ALL_DOMAINS_STATS_OTHER,
+      "backing": libvirt.VIR_CONNECT_GET_ALL_DOMAINS_STATS_BACKING,
+      "enforce": libvirt.VIR_CONNECT_GET_ALL_DOMAINS_STATS_ENFORCE_STATS}
+
+def filer_domains(logger, flags):
+    """
+       return a filtered domains set
+    """
+    a = set(active_domains(logger))
+    d = set(defined_domains(logger))
+    if flags & libvirt.VIR_CONNECT_GET_ALL_DOMAINS_STATS_PERSISTENT and \
+       flags & libvirt.VIR_CONNECT_GET_ALL_DOMAINS_STATS_TRANSIENT:
+        domains = a | d
+    elif flags & libvirt.VIR_CONNECT_GET_ALL_DOMAINS_STATS_PERSISTENT:
+        domains = d
+    elif flags & libvirt.VIR_CONNECT_GET_ALL_DOMAINS_STATS_TRANSIENT:
+        domains = a - d
+    else:
+        domains = a | d
+    if flags & libvirt.VIR_CONNECT_GET_ALL_DOMAINS_STATS_ACTIVE and \
+       flags & libvirt.VIR_CONNECT_GET_ALL_DOMAINS_STATS_INACTIVE:
+        domains &= (a | d)
+    elif flags & libvirt.VIR_CONNECT_GET_ALL_DOMAINS_STATS_ACTIVE:
+        domains &= a
+    elif flags & libvirt.VIR_CONNECT_GET_ALL_DOMAINS_STATS_INACTIVE:
+        domains &= (d - a)
+    else:
+        domains &= a | d
+    return domains
+
+def active_domains(logger):
+    """
+       return active domains on current uri
+    """
+    NUM = "ls /run/libvirt/qemu|grep \".xml\""
+    status, output = utils.exec_cmd(NUM, shell=True)
+    output = [item.replace(".xml","") for item in output]
+    if status == 0:
+        logger.debug("Got active domains: %s" % output)
+        return output
+    else:
+        logger.debug("Got active domains: %s" % output)
+        return output
+
+def defined_domains(logger):
+    """
+       return defined domains on current uri
+    """
+    NUM = "ls /etc/libvirt/qemu|grep \".xml\""
+    status, output = utils.exec_cmd(NUM, shell=True)
+    output = [item.replace(".xml","") for item in output]
+    if status == 0:
+        logger.debug("Got defined domains: %s" % output)
+        return output
+    else:
+        logger.debug("Got defined domains: %s" % output)
+        return output
+
+def compare_value(logger,op1,op2):
+    """
+       compare 2 variables value
+    """
+    if op1 != op2:
+        logger.debug("Check %s: Fail" % op2)
+        return False
+    else:
+        logger.debug("Check %s: Pass" % op2)
+        return True
+
+def check_vcpu(logger,dom_name,dom_active,dom_eles):
+    """
+       check vcpu info of given domain
+    """
+    iDOM_XML = "/etc/libvirt/qemu/" + dom_name +".xml"
+    aDOM_XML = "/run/libvirt/qemu/" + dom_name +".xml"
+    if dom_active:
+        xml = minidom.parse(aDOM_XML)
+        dom = xml.getElementsByTagName('domain')[0]
+        vcpu = dom.getElementsByTagName('vcpu')[0]
+        vcpu_max = int(vcpu.childNodes[0].data)
+        if not vcpu.getAttribute('current'):
+            vcpu_cur = vcpu_max
+        else:
+            vcpu_cur = int(vcpu.getAttribute('current'))
+
+        logger.debug("Checking vcpu.current: %d" \
+                % dom_eles.get("vcpu.current"))
+        if not compare_value(logger,vcpu_cur, \
+                dom_eles.get("vcpu.current")):
+            return False
+        logger.debug("Checking vcpu.maximum: %d" \
+                % dom_eles.get("vcpu.maximum"))
+        if not compare_value(logger,vcpu_max, \
+                dom_eles.get("vcpu.maximum")):
+            return False
+    else:
+        xml = minidom.parse(iDOM_XML)
+        vcpu = xml.getElementsByTagName('vcpu')[0]
+        vcpu_max = int(vcpu.childNodes[0].data)
+        logger.debug("Checking vcpu.maximum: %d" \
+                % dom_eles.get("vcpu.maximum"))
+        if not compare_value(logger,vcpu_max, \
+                dom_eles.get("vcpu.maximum")):
+            return False
+    #for each vcpu.state field
+    check_each_vcpu(logger,dom_name,dom_active,dom_eles)
+    return True
+
+def check_each_vcpu(logger,dom_name,dom_active,dom_eles):
+    """
+       check each vcpu info, but ignore vcpu.*.time
+    """
+    iDOM_XML = "/etc/libvirt/qemu/" + dom_name +".xml"
+    aDOM_XML = "/run/libvirt/qemu/" + dom_name +".xml"
+    vcpu_index = 0
+    if dom_active:
+        vcpu_stat = 1
+        xml = minidom.parse(aDOM_XML)
+        dom = xml.getElementsByTagName('vcpus')[0]
+        dom_pid = str(xml.getElementsByTagName("domstatus")[0].\
+                getAttributeNode('pid').nodeValue)
+        vcpu = dom.getElementsByTagName('vcpu')
+        for vcpu_sub in vcpu:
+            proc_path = "/proc/"
+            vcpu_pre = "vcpu."+ str(vcpu_index) + "."
+            attr1 = dom_eles.get(vcpu_pre +"state")
+            logger.debug("Checking %sstate: %d" %(vcpu_pre, attr1))
+            if not compare_value(logger,vcpu_stat, attr1):
+                return False
+            vcpu_index +=1
+    else:
+        vcpu_stat = 0
+        xml = minidom.parse(iDOM_XML)
+        vcpu = xml.getElementsByTagName('vcpu')[0]
+        vcpu_max = int(vcpu.childNodes[0].data)
+        vcpu_cur = vcpu.getAttributeNode('current')
+        if not vcpu_cur:
+            for i in range(0,vcpu_max):
+                vcpu_pre = "vcpu."+ str(i) + "."
+                logger.debug("Checking %sstate: %d" \
+                        %(vcpu_pre, dom_eles.get(vcpu_pre + "state")))
+                if not compare_value(logger,vcpu_stat, \
+                        dom_eles.get(vcpu_pre + "state")):
+                    return False
+        elif int(vcpu_cur.nodeValue) <= vcpu_max:
+            for i in range(0,int(vcpu_cur.nodeValue)):
+                vcpu_pre = "vcpu."+ str(i) + "."
+                logger.debug("Checking %sstate: %d" \
+                        %(vcpu_pre, dom_eles.get(vcpu_pre + "state")))
+                if not compare_value(logger,vcpu_stat, \
+                        dom_eles.get(vcpu_pre + "state")):
+                    return False
+    return True
+
+def check_balloon(logger,dom_name,dom_active,dom_eles):
+    """
+       check balloon of given domain
+    """
+    iDOM_XML = "/etc/libvirt/qemu/" + dom_name +".xml"
+    aDOM_XML = "/run/libvirt/qemu/" + dom_name +".xml"
+    if dom_active:
+        xml = minidom.parse(aDOM_XML)
+        dom = xml.getElementsByTagName('domain')[0]
+        mem_max = int(dom.getElementsByTagName('memory')[0]\
+                .childNodes[0].data)
+        mem_cur = int(dom.getElementsByTagName('currentMemory')[0]\
+                .childNodes[0].data)
+        logger.debug("Checking balloon.maximum: %d" \
+                % dom_eles.get("balloon.maximum"))
+        if not compare_value(logger,mem_max, \
+                dom_eles.get("balloon.maximum")):
+            return False
+        logger.debug("Checking balloon.current: %d" \
+                % dom_eles.get("balloon.current"))
+        if not compare_value(logger,mem_cur, \
+                dom_eles.get("balloon.current")):
+            return False
+    else:
+        xml = minidom.parse(iDOM_XML)
+        mem_max = int(xml.getElementsByTagName('memory')[0].\
+                childNodes[0].data)
+        logger.debug("Checking balloon.maximum: %d" \
+                % dom_eles.get("balloon.maximum"))
+        if not compare_value(logger,mem_max, \
+                dom_eles.get("balloon.maximum")):
+            return False
+    return True
+
+def check_interface(logger,dom_name,dom_active, dom_eles):
+    """
+       check interface info, only check the count and name  attributes
+       other sub-attributes of net.* will be ignored
+    """
+    iDOM_XML = "/etc/libvirt/qemu/" + dom_name +".xml"
+    aDOM_XML = "/run/libvirt/qemu/" + dom_name +".xml"
+    netfile = "/proc/net/dev"
+    if dom_active:
+        xml = minidom.parse(aDOM_XML)
+        dom = xml.getElementsByTagName('domain')[0]
+        dev = dom.getElementsByTagName('devices')[0]
+        nic = dev.getElementsByTagName('interface')
+        logger.debug("Checking net.count: %d" % dom_eles.get("net.count"))
+        if not compare_value(logger,len(nic),dom_eles.get("net.count")):
+            return False
+        for iface in nic:
+            if_name = iface.getElementsByTagName("target")[0].\
+                    getAttribute('dev')
+            if_name += ":"
+            logger.debug("Checking %s" % if_name)
+            content = open(netfile, 'r')
+            if if_name in str(content.readlines()):
+                logger.debug("Check %s: Pass" % if_name)
+            else:
+                logger.debug("Check %s: Fail" % if_name)
+                return False
+            content.close()
+    else:
+        pass
+    return True
+
+def count_disk_chain(logger,filepath,dom_active):
+    """
+       count deep of disk chain
+    """
+    CMD = "file %s"
+    num = 0
+    while True:
+        status, output = utils.exec_cmd(CMD % filepath, shell=True)
+        if status != 0:
+            logger.debug("Can not see the back file")
+        if "has backing file" in output[0]:
+            num +=1
+            filepath = output[0].split("(path")[1].split(")")[0].strip()
+        else:
+            break
+        if not dom_active:
+            break
+    return num
+
+def check_block(logger,dom_name,dom_active,dom_eles,backing_f):
+    """
+       check the block info, only check count, name and path attributes,
+       other sub-attributes of block.* will be ignored
+    """
+    iDOM_XML = "/etc/libvirt/qemu/" + dom_name +".xml"
+    aDOM_XML = "/run/libvirt/qemu/" + dom_name +".xml"
+    disk_index = 0
+    if dom_active:
+        xml = minidom.parse(aDOM_XML)
+        dom = xml.getElementsByTagName('domain')[0]
+        dev = dom.getElementsByTagName('devices')[0]
+        disk = dev.getElementsByTagName('disk')
+        disk_count = len(disk)
+        for dk in disk:
+            disk_name = dk.getElementsByTagName('target')[0]\
+                    .getAttributeNode('dev').nodeValue
+            disk_sour = dk.getElementsByTagName('source')[0]\
+                    .getAttributeNode('file').nodeValue
+            if backing_f:
+                disk_count += count_disk_chain(logger,disk_sour,dom_active)
+        logger.debug("Checking disk.count: %d" % dom_eles.get("block.count"))
+        if not compare_value(logger,disk_count,dom_eles.get("block.count")):
+            return False
+        if not check_each_block(logger,dom_name,dom_eles,backing_f):
+            return False
+    else:
+        xml = minidom.parse(iDOM_XML)
+        dev = xml.getElementsByTagName('devices')[0]
+        disk = dev.getElementsByTagName('disk')
+        disk_count = len(disk)
+        logger.debug("Checking disk.count: %d" % dom_eles.get("block.count"))
+        if not compare_value(logger,disk_count,dom_eles.get("block.count")):
+            return False
+        for dk in disk:
+            disk_pre = "block."+ str(disk_index) + "."
+            disk_name = dk.getElementsByTagName('target')[0]\
+                    .getAttributeNode('dev').nodeValue
+            logger.debug("Checking %sname: %s" \
+                    % (disk_pre, dom_eles.get(disk_pre + "name")))
+            if not compare_value(logger,disk_name,\
+                    dom_eles.get(disk_pre + "name")):
+                return False
+            disk_sour = dk.getElementsByTagName('source')[0]\
+                    .getAttributeNode('file').nodeValue
+            logger.debug("Checking %spath: %s" \
+                    % (disk_pre, dom_eles.get(disk_pre + "path")))
+            if not compare_value(logger,disk_sour,\
+                    dom_eles.get(disk_pre + "path")):
+                return False
+            disk_index += 1
+    return True
+
+def check_each_block(logger,dom_name,dom_eles,backing_f):
+    """
+       for a active domain, this function will list all backing
+       block info
+    """
+    aDOM_XML = "/run/libvirt/qemu/" + dom_name +".xml"
+    disk_index = 0
+    xml = minidom.parse(aDOM_XML)
+    dom = xml.getElementsByTagName('domain')[0]
+    dev = dom.getElementsByTagName('devices')[0]
+    disk = dev.getElementsByTagName('disk')
+    for dk in disk:
+        disk_pre = "block."+ str(disk_index) + "."
+        disk_name = dk.getElementsByTagName('target')[0]\
+                .getAttributeNode('dev').nodeValue
+        disk_sour = dk.getElementsByTagName('source')[0]\
+                .getAttributeNode('file').nodeValue
+        logger.debug("Checking %s %s" % (disk_name,disk_sour))
+        if not compare_value(logger,disk_name, \
+                dom_eles.get(disk_pre + "name")):
+            return False
+        if not compare_value(logger,disk_sour, \
+                dom_eles.get(disk_pre + "path")):
+            return False
+        if not backing_f:
+            disk_index += 1
+            continue
+        while True:
+            temp = dk.getElementsByTagName('backingStore')[0]
+            if temp.hasChildNodes():
+                temp_name = disk_name
+                temp_backingIndex = int(temp.getAttributeNode('index').\
+                        nodeValue)
+                temp_path = temp.getElementsByTagName('source')[0].\
+                        getAttributeNode('file').nodeValue
+                logger.debug("Checking %s %s %s" \
+                        % (temp_name, temp_backingIndex, temp_path))
+                disk_index += 1
+                disk_pre = "block."+ str(disk_index) + "."
+                if not compare_value(logger,temp_name, \
+                        dom_eles.get(disk_pre + "name")):
+                    return False
+                if not compare_value(logger,temp_backingIndex, \
+                        dom_eles.get(disk_pre + "backingIndex")):
+                    return False
+                if not compare_value(logger,temp_path, \
+                        dom_eles.get(disk_pre + "path")):
+                    return False
+            else:
+                break
+            dk = temp
+        disk_index += 1
+    return True
+
+def connection_getAllDomainStats(params):
+    """
+       test API for getAllDomainStats in class virConnect, the script need
+       static values to compare with those returned by API,but they are
+       hard to calculate, so ignore below attributes temporarily:
+           cpu.time
+           cpu.user
+           cpu.system
+           *.*.time
+           net.*.rx.*
+           net.*.tx.*
+           block.*.rd
+           block.*.wr
+           block.*.fl
+           ...
+      for below two attributes, no good method to obtain values when
+      out of libvirt, pass them temporarily too.
+           state.state
+           state.reason
+    """
+    balloon_f = False
+    vcpu_f = False
+    interface_f = False
+    block_f = False
+    backing_f = False
+    filter_f = True
+
+    logger = params['logger']
+    domstats = params.get('stats', "all")
+    domstats_string = domstats.split("|")
+    logger.info("The stats are %s" % domstats)
+    domstats = 0
+    for domstat in domstats_string:
+        if domstat == 'state':
+            domstats |= ds.get('state')
+        elif domstat == 'cpu':
+            domstats |= ds.get('cpu')
+        elif domstat == 'balloon':
+            domstats |= ds.get('balloon')
+            balloon_f = True
+        elif domstat == 'vcpu':
+            domstats |= ds.get('vcpu')
+            vcpu_f = True
+        elif domstat == 'interface':
+            domstats |= ds.get('interface')
+            interface_f = True
+        elif domstat == 'block':
+            domstats |= ds.get('block')
+            block_f = True
+        elif domstat == "all":
+            domstats = 0
+            balloon_f = True
+            vcpu_f = True
+            interface_f = True
+            block_f = True
+        else:
+            logger.error("Unknown flags")
+            return 1
+    logger.info("The given stats is %d" % domstats)
+
+    flags = params.get('flags',"all")
+    logger.info("The flags are %s" % flags)
+    flags_string = flags.split("|")
+    flags = 0
+    for flag in flags_string:
+        if flag == 'active':
+            flags |= fg.get('active')
+        elif flag == 'inactive':
+            flags |= fg.get('inactive')
+        elif flag == 'persistent':
+            flags |= fg.get('persistent')
+        elif flag == 'transient':
+            flags |= fg.get('transient')
+        elif flag == 'running':
+            flags |= fg.get('running')
+            filter_f = False
+        elif flag == 'paused':
+            flags |= fg.get('paused')
+            filter_f = False
+        elif flag == 'shutoff':
+            flags |= fg.get('shutoff')
+            filter_f = False
+        elif flag == 'other':
+            flags |= fg.get('other')
+            filter_f = False
+        elif flag == 'backing':
+            flags |= fg.get('backing')
+            backing_f = True
+        elif flag == 'enforce':
+            flags |= fg.get('enforce')
+        elif flag == 'all':
+            flags = 0
+            filter_f = False
+        else:
+            logger.error("Unknown flags")
+            return 1
+    logger.info("The given flags is %d" % flags)
+
+    try:
+        conn = sharedmod.libvirtobj['conn']
+
+        domstats_from_api =  conn.getAllDomainStats(domstats,flags)
+        logger.info("Got the number of domain from API: %s" \
+                % len(domstats_from_api))
+        #filter expected domains
+        domains = filer_domains(logger,flags)
+        if not filter_f:
+            logger.info("Check the number of domain: Skip")
+        elif len(domains) == len(domstats_from_api):
+            logger.info("Available domains: %s" % list(domains))
+            logger.info("Check the number of domain %s: Pass" \
+                    % len(domstats_from_api))
+        else:
+            logger.info("Available domains: %s" % list(domains))
+            logger.info("Check the number of domain %s: Fail" \
+                    % len(domstats_from_api))
+            return 1
+
+        for dom in domstats_from_api:
+            dom_name = dom[0].name()
+            dom_active = dom[0].isActive()
+            dom_eles = dom[1]
+            logger.debug("Domain elements are %s" %(dom_eles))
+            logger.info("Checking %s:" %(dom_name))
+            if vcpu_f:
+                if not check_vcpu(logger,dom_name,dom_active,dom_eles):
+                    logger.info("Failed to check vcpu states")
+                    return 1
+                else:
+                    logger.info("Success to check vcpu state")
+            if balloon_f:
+                if not check_balloon(logger,dom_name,dom_active,dom_eles):
+                    logger.info("Failed to check balloon state")
+                    return 1
+                else:
+                    logger.info("Success to check balloon state")
+            if interface_f:
+                if not check_interface(logger,dom_name,dom_active,dom_eles):
+                    logger.info("Failed to check interface state")
+                    return 1
+                else:
+                    logger.info("Success to check interface state")
+            if block_f:
+                if not check_block(logger,dom_name,dom_active,\
+                        dom_eles,backing_f):
+                    logger.info("Failed to check block state")
+                    return 1
+                else:
+                    logger.info("Success to check block state")
+
+    except libvirtError, e:
+        logger.error("API error message: %s" % e.message)
+        return 1
+
+    return 0
-- 
1.8.3.1

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