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Posted to commits@ambari.apache.org by sr...@apache.org on 2014/09/09 22:36:29 UTC

git commit: AMBARI-6786. Provide testcases for configs got by /recommendations on stack-version

Repository: ambari
Updated Branches:
  refs/heads/trunk c2a117feb -> fbe8b876a


AMBARI-6786. Provide testcases for configs got by /recommendations on stack-version


Project: http://git-wip-us.apache.org/repos/asf/ambari/repo
Commit: http://git-wip-us.apache.org/repos/asf/ambari/commit/fbe8b876
Tree: http://git-wip-us.apache.org/repos/asf/ambari/tree/fbe8b876
Diff: http://git-wip-us.apache.org/repos/asf/ambari/diff/fbe8b876

Branch: refs/heads/trunk
Commit: fbe8b876a818fa9ad8215557c407a2f1a6e47412
Parents: c2a117f
Author: Srimanth Gunturi <sg...@hortonworks.com>
Authored: Tue Sep 9 10:42:42 2014 -0700
Committer: Srimanth Gunturi <sg...@hortonworks.com>
Committed: Tue Sep 9 13:22:52 2014 -0700

----------------------------------------------------------------------
 .../stacks/HDP/1.3.2/services/stack_advisor.py  |  19 ++-
 .../stacks/HDP/2.0.6/services/stack_advisor.py  |  37 +++--
 .../stacks/HDP/2.1/services/stack_advisor.py    |   8 +-
 .../stacks/2.0.6/common/test_stack_advisor.py   | 157 ++++++++++++++++++-
 .../stacks/2.1/common/test_stack_advisor.py     | 132 ++++++++++++++++
 5 files changed, 323 insertions(+), 30 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/ambari/blob/fbe8b876/ambari-server/src/main/resources/stacks/HDP/1.3.2/services/stack_advisor.py
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/resources/stacks/HDP/1.3.2/services/stack_advisor.py b/ambari-server/src/main/resources/stacks/HDP/1.3.2/services/stack_advisor.py
index c9b119f..ba42075 100644
--- a/ambari-server/src/main/resources/stacks/HDP/1.3.2/services/stack_advisor.py
+++ b/ambari-server/src/main/resources/stacks/HDP/1.3.2/services/stack_advisor.py
@@ -19,6 +19,7 @@ limitations under the License.
 
 import re
 import sys
+from math import ceil
 
 from stack_advisor import DefaultStackAdvisor
 
@@ -146,19 +147,21 @@ class HDP132StackAdvisor(DefaultStackAdvisor):
       24 < cluster["ram"]: 2048
     }[1]
 
+    totalAvailableRam = cluster["ram"] - cluster["reservedRam"]
+    if cluster["hBaseInstalled"]:
+      totalAvailableRam -= cluster["hbaseRam"]
+    cluster["totalAvailableRam"] = max(2048, totalAvailableRam * 1024)
     '''containers = max(3, min (2*cores,min (1.8*DISKS,(Total available RAM) / MIN_CONTAINER_SIZE))))'''
-    cluster["containers"] = max(3,
-                                min(2 * cluster["cpu"],
-                                    int(min(1.8 * cluster["disk"],
-                                            cluster["ram"] / cluster["minContainerSize"]))))
+    cluster["containers"] = round(max(3,
+                                      min(2 * cluster["cpu"],
+                                          min(ceil(1.8 * cluster["disk"]),
+                                              cluster["totalAvailableRam"] / cluster["minContainerSize"]))))
 
     '''ramPerContainers = max(2GB, RAM - reservedRam - hBaseRam) / containers'''
-    cluster["ramPerContainer"] = max(2048,
-                                     cluster["ram"] - cluster["reservedRam"] - cluster["hbaseRam"])
-    cluster["ramPerContainer"] /= cluster["containers"]
+    cluster["ramPerContainer"] = abs(cluster["totalAvailableRam"] / cluster["containers"])
     '''If greater than 1GB, value will be in multiples of 512.'''
     if cluster["ramPerContainer"] > 1024:
-      cluster["ramPerContainer"] = ceil(cluster["ramPerContainer"] / 512) * 512
+      cluster["ramPerContainer"] = int(cluster["ramPerContainer"] / 512) * 512
 
     cluster["mapMemory"] = int(cluster["ramPerContainer"])
     cluster["reduceMemory"] = cluster["ramPerContainer"]

http://git-wip-us.apache.org/repos/asf/ambari/blob/fbe8b876/ambari-server/src/main/resources/stacks/HDP/2.0.6/services/stack_advisor.py
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/resources/stacks/HDP/2.0.6/services/stack_advisor.py b/ambari-server/src/main/resources/stacks/HDP/2.0.6/services/stack_advisor.py
index 452ccbd..8853e13 100644
--- a/ambari-server/src/main/resources/stacks/HDP/2.0.6/services/stack_advisor.py
+++ b/ambari-server/src/main/resources/stacks/HDP/2.0.6/services/stack_advisor.py
@@ -19,6 +19,7 @@ limitations under the License.
 
 import re
 import sys
+from math import ceil
 
 from stack_advisor import DefaultStackAdvisor
 
@@ -91,19 +92,19 @@ class HDP206StackAdvisor(DefaultStackAdvisor):
 
   def recommendYARNConfigurations(self, configurations, clusterData):
     putYarnProperty = self.putProperty(configurations, "yarn-site")
-    putYarnProperty('yarn.nodemanager.resource.memory-mb', clusterData['containers'] * clusterData['ramPerContainer'])
-    putYarnProperty('yarn.scheduler.minimum-allocation-mb', clusterData['ramPerContainer'])
-    putYarnProperty('yarn.scheduler.maximum-allocation-mb', clusterData['containers'] * clusterData['ramPerContainer'])
+    putYarnProperty('yarn.nodemanager.resource.memory-mb', int(round(clusterData['containers'] * clusterData['ramPerContainer'])))
+    putYarnProperty('yarn.scheduler.minimum-allocation-mb', int(clusterData['ramPerContainer']))
+    putYarnProperty('yarn.scheduler.maximum-allocation-mb', int(round(clusterData['containers'] * clusterData['ramPerContainer'])))
 
   def recommendMapReduce2Configurations(self, configurations, clusterData):
     putMapredProperty = self.putProperty(configurations, "mapred-site")
-    putMapredProperty('yarn.app.mapreduce.am.resource.mb', clusterData['amMemory'])
-    putMapredProperty('yarn.app.mapreduce.am.command-opts', "-Xmx" + str(int(0.8 * clusterData['amMemory'])) + "m")
+    putMapredProperty('yarn.app.mapreduce.am.resource.mb', int(clusterData['amMemory']))
+    putMapredProperty('yarn.app.mapreduce.am.command-opts', "-Xmx" + str(int(round(0.8 * clusterData['amMemory']))) + "m")
     putMapredProperty('mapreduce.map.memory.mb', clusterData['mapMemory'])
-    putMapredProperty('mapreduce.reduce.memory.mb', clusterData['reduceMemory'])
-    putMapredProperty('mapreduce.map.java.opts', "-Xmx" + str(int(0.8 * clusterData['mapMemory'])) + "m")
-    putMapredProperty('mapreduce.reduce.java.opts', "-Xmx" + str(int(0.8 * clusterData['reduceMemory'])) + "m")
-    putMapredProperty('mapreduce.task.io.sort.mb', int(min(0.4 * clusterData['mapMemory'], 1024)))
+    putMapredProperty('mapreduce.reduce.memory.mb', int(clusterData['reduceMemory']))
+    putMapredProperty('mapreduce.map.java.opts', "-Xmx" + str(int(round(0.8 * clusterData['mapMemory']))) + "m")
+    putMapredProperty('mapreduce.reduce.java.opts', "-Xmx" + str(int(round(0.8 * clusterData['reduceMemory']))) + "m")
+    putMapredProperty('mapreduce.task.io.sort.mb', min(int(round(0.4 * clusterData['mapMemory'])), 1024))
 
   def getClusterData(self, servicesList, hosts, components):
 
@@ -161,19 +162,21 @@ class HDP206StackAdvisor(DefaultStackAdvisor):
       24 < cluster["ram"]: 2048
     }[1]
 
+    totalAvailableRam = cluster["ram"] - cluster["reservedRam"]
+    if cluster["hBaseInstalled"]:
+      totalAvailableRam -= cluster["hbaseRam"]
+    cluster["totalAvailableRam"] = max(2048, totalAvailableRam * 1024)
     '''containers = max(3, min (2*cores,min (1.8*DISKS,(Total available RAM) / MIN_CONTAINER_SIZE))))'''
-    cluster["containers"] = max(3,
+    cluster["containers"] = round(max(3,
                                 min(2 * cluster["cpu"],
-                                    int(min(1.8 * cluster["disk"],
-                                            cluster["ram"] / cluster["minContainerSize"]))))
+                                    min(ceil(1.8 * cluster["disk"]),
+                                            cluster["totalAvailableRam"] / cluster["minContainerSize"]))))
 
     '''ramPerContainers = max(2GB, RAM - reservedRam - hBaseRam) / containers'''
-    cluster["ramPerContainer"] = max(2048,
-                                     cluster["ram"] - cluster["reservedRam"] - cluster["hbaseRam"])
-    cluster["ramPerContainer"] /= cluster["containers"]
+    cluster["ramPerContainer"] = abs(cluster["totalAvailableRam"] / cluster["containers"])
     '''If greater than 1GB, value will be in multiples of 512.'''
     if cluster["ramPerContainer"] > 1024:
-      cluster["ramPerContainer"] = ceil(cluster["ramPerContainer"] / 512) * 512
+      cluster["ramPerContainer"] = int(cluster["ramPerContainer"] / 512) * 512
 
     cluster["mapMemory"] = int(cluster["ramPerContainer"])
     cluster["reduceMemory"] = cluster["ramPerContainer"]
@@ -345,4 +348,4 @@ def formatXmxSizeToBytes(value):
     modifier == 't': 1024 * 1024 * 1024 * 1024,
     modifier == 'p': 1024 * 1024 * 1024 * 1024 * 1024
     }[1]
-  return to_number(value) * m
\ No newline at end of file
+  return to_number(value) * m

http://git-wip-us.apache.org/repos/asf/ambari/blob/fbe8b876/ambari-server/src/main/resources/stacks/HDP/2.1/services/stack_advisor.py
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/resources/stacks/HDP/2.1/services/stack_advisor.py b/ambari-server/src/main/resources/stacks/HDP/2.1/services/stack_advisor.py
index bcf3f61..621e74d 100644
--- a/ambari-server/src/main/resources/stacks/HDP/2.1/services/stack_advisor.py
+++ b/ambari-server/src/main/resources/stacks/HDP/2.1/services/stack_advisor.py
@@ -39,17 +39,17 @@ class HDP21StackAdvisor(HDP206StackAdvisor):
                         "org.apache.oozie.service.HCatAccessorService")
 
   def recommendHiveConfigurations(self, configurations, clusterData):
-    containerSize = clusterData['mapMemory'] if clusterData['mapMemory'] > 2048 else clusterData['reduceMemory']
+    containerSize = clusterData['mapMemory'] if clusterData['mapMemory'] > 2048 else int(clusterData['reduceMemory'])
     containerSize = min(clusterData['containers'] * clusterData['ramPerContainer'], containerSize)
     putHiveProperty = self.putProperty(configurations, "hive-site")
-    putHiveProperty('hive.auto.convert.join.noconditionaltask.size', int(containerSize / 3) * 1048576)
-    putHiveProperty('hive.tez.java.opts', "-server -Xmx" + str(int(0.8 * containerSize))
+    putHiveProperty('hive.auto.convert.join.noconditionaltask.size', int(round(containerSize / 3)) * 1048576)
+    putHiveProperty('hive.tez.java.opts', "-server -Xmx" + str(int(round(0.8 * containerSize)))
                     + "m -Djava.net.preferIPv4Stack=true -XX:NewRatio=8 -XX:+UseNUMA -XX:+UseParallelGC")
     putHiveProperty('hive.tez.container.size', containerSize)
 
   def recommendTezConfigurations(self, configurations, clusterData):
     putTezProperty = self.putProperty(configurations, "tez-site")
-    putTezProperty("tez.am.resource.memory.mb", clusterData['amMemory'])
+    putTezProperty("tez.am.resource.memory.mb", int(clusterData['amMemory']))
     putTezProperty("tez.am.java.opts",
                    "-server -Xmx" + str(int(0.8 * clusterData["amMemory"]))
                    + "m -Djava.net.preferIPv4Stack=true -XX:+UseNUMA -XX:+UseParallelGC")

http://git-wip-us.apache.org/repos/asf/ambari/blob/fbe8b876/ambari-server/src/test/python/stacks/2.0.6/common/test_stack_advisor.py
----------------------------------------------------------------------
diff --git a/ambari-server/src/test/python/stacks/2.0.6/common/test_stack_advisor.py b/ambari-server/src/test/python/stacks/2.0.6/common/test_stack_advisor.py
index 1577730..ce15609 100644
--- a/ambari-server/src/test/python/stacks/2.0.6/common/test_stack_advisor.py
+++ b/ambari-server/src/test/python/stacks/2.0.6/common/test_stack_advisor.py
@@ -174,7 +174,7 @@ class TestHDP206StackAdvisor(TestCase):
     result = self.stackAdvisor.validateConfigurations(services, hosts)
 
     expectedItems = [
-      {"message": "Value is less than the recommended default of 2046", "level": "WARN"},
+      {"message": "Value is less than the recommended default of 2048", "level": "WARN"},
       {"message": "Value should be integer", "level": "ERROR"},
       {"message": "Value should be set", "level": "ERROR"}
     ]
@@ -235,6 +235,161 @@ class TestHDP206StackAdvisor(TestCase):
     ]
     self.assertValidationResult(expectedItems, result)
 
+  def test_getClusterData_withHBaseAnd6gbRam(self):
+    servicesList = ["HBASE"]
+    components = []
+    hosts = {
+      "items" : [
+        {
+          "Hosts" : {
+            "cpu_count" : 8,
+            "total_mem" : 6291456,
+            "disk_info" : [
+              {"mountpoint" : "/"},
+              {"mountpoint" : "/dev/shm"},
+              {"mountpoint" : "/vagrant"},
+              {"mountpoint" : "/"},
+              {"mountpoint" : "/dev/shm"},
+              {"mountpoint" : "/"},
+              {"mountpoint" : "/dev/shm"},
+              {"mountpoint" : "/vagrant"}
+            ]
+          }
+        }
+      ]
+    }
+    expected = {
+      "hBaseInstalled": True,
+      "components": components,
+      "cpu": 8,
+      "disk": 8,
+      "ram": 6,
+      "reservedRam": 2,
+      "hbaseRam": 1,
+      "minContainerSize": 512,
+      "totalAvailableRam": 3072,
+      "containers": 6,
+      "ramPerContainer": 512,
+      "mapMemory": 512,
+      "reduceMemory": 512,
+      "amMemory": 512
+    }
+
+    result = self.stackAdvisor.getClusterData(servicesList, hosts, components)
+
+    self.assertEquals(result, expected)
+
+  def test_getClusterData_withHBaseAnd48gbRam(self):
+    servicesList = ["HBASE"]
+    components = []
+    hosts = {
+      "items" : [
+        {
+          "Hosts" : {
+            "cpu_count" : 6,
+            "total_mem" : 50331648,
+            "disk_info" : [
+              {"mountpoint" : "/"},
+              {"mountpoint" : "/dev/shm"},
+              {"mountpoint" : "/vagrant"},
+              {"mountpoint" : "/"},
+              {"mountpoint" : "/dev/shm"},
+              {"mountpoint" : "/vagrant"}
+            ]
+          }
+        }
+      ]
+    }
+    expected = {
+      "hBaseInstalled": True,
+      "components": components,
+      "cpu": 6,
+      "disk": 6,
+      "ram": 48,
+      "reservedRam": 6,
+      "hbaseRam": 8,
+      "minContainerSize": 2048,
+      "totalAvailableRam": 34816,
+      "containers": 11,
+      "ramPerContainer": 3072,
+      "mapMemory": 3072,
+      "reduceMemory": 3072,
+      "amMemory": 3072
+    }
+
+    result = self.stackAdvisor.getClusterData(servicesList, hosts, components)
+
+    self.assertEquals(result, expected)
+
+  def test_recommendYARNConfigurations(self):
+    configurations = {}
+    clusterData = {
+      "containers" : 5,
+      "ramPerContainer": 256
+    }
+    expected = {
+      "yarn-site": {
+        "properties": {
+          "yarn.nodemanager.resource.memory-mb": "1280",
+          "yarn.scheduler.minimum-allocation-mb": "256",
+          "yarn.scheduler.maximum-allocation-mb": "1280"
+        }
+      }
+    }
+
+    self.stackAdvisor.recommendYARNConfigurations(configurations, clusterData)
+    self.assertEquals(configurations, expected)
+
+  def test_recommendMapReduce2Configurations_mapMemoryLessThan2560(self):
+    configurations = {}
+    clusterData = {
+      "mapMemory": 567,
+      "reduceMemory": 345.6666666666666,
+      "amMemory": 123.54
+    }
+    expected = {
+      "mapred-site": {
+        "properties": {
+          "yarn.app.mapreduce.am.resource.mb": "123",
+          "yarn.app.mapreduce.am.command-opts": "-Xmx99m",
+          "mapreduce.map.memory.mb": "567",
+          "mapreduce.reduce.memory.mb": "345",
+          "mapreduce.map.java.opts": "-Xmx454m",
+          "mapreduce.reduce.java.opts": "-Xmx277m",
+          "mapreduce.task.io.sort.mb": "227"
+        }
+      }
+    }
+
+    self.stackAdvisor.recommendMapReduce2Configurations(configurations, clusterData)
+    self.assertEquals(configurations, expected)
+
+  def test_getClusterData_noHostsWithoutHBase(self):
+    servicesList = []
+    components = []
+    hosts = {
+      "items" : []
+    }
+    result = self.stackAdvisor.getClusterData(servicesList, hosts, components)
+
+    expected = {
+      "hBaseInstalled": False,
+      "components": components,
+      "cpu": 0,
+      "disk": 0,
+      "ram": 0,
+      "reservedRam": 1,
+      "hbaseRam": 1,
+      "minContainerSize": 256,
+      "totalAvailableRam": 2048,
+      "containers": 3,
+      "ramPerContainer": 682.6666666666666,
+      "mapMemory": 682,
+      "reduceMemory": 682.6666666666666,
+      "amMemory": 682.6666666666666
+    }
+
+    self.assertEquals(result, expected)
 
   def prepareHosts(self, hostsNames):
     hosts = { "items": [] }

http://git-wip-us.apache.org/repos/asf/ambari/blob/fbe8b876/ambari-server/src/test/python/stacks/2.1/common/test_stack_advisor.py
----------------------------------------------------------------------
diff --git a/ambari-server/src/test/python/stacks/2.1/common/test_stack_advisor.py b/ambari-server/src/test/python/stacks/2.1/common/test_stack_advisor.py
new file mode 100644
index 0000000..5f39c73
--- /dev/null
+++ b/ambari-server/src/test/python/stacks/2.1/common/test_stack_advisor.py
@@ -0,0 +1,132 @@
+'''
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+'''
+
+import socket
+from unittest import TestCase
+
+class TestHDP21StackAdvisor(TestCase):
+
+  def setUp(self):
+    import imp
+    import os
+
+    testDirectory = os.path.dirname(os.path.abspath(__file__))
+    stackAdvisorPath = os.path.join(testDirectory, '../../../../../main/resources/stacks/stack_advisor.py')
+    hdp206StackAdvisorPath = os.path.join(testDirectory, '../../../../../main/resources/stacks/HDP/2.0.6/services/stack_advisor.py')
+    hdp21StackAdvisorPath = os.path.join(testDirectory, '../../../../../main/resources/stacks/HDP/2.1/services/stack_advisor.py')
+    hdp21StackAdvisorClassName = 'HDP21StackAdvisor'
+    with open(stackAdvisorPath, 'rb') as fp:
+      imp.load_module('stack_advisor', fp, stackAdvisorPath, ('.py', 'rb', imp.PY_SOURCE))
+    with open(hdp206StackAdvisorPath, 'rb') as fp:
+      imp.load_module('stack_advisor_impl', fp, hdp206StackAdvisorPath, ('.py', 'rb', imp.PY_SOURCE))
+    with open(hdp21StackAdvisorPath, 'rb') as fp:
+      stack_advisor_impl = imp.load_module('stack_advisor_impl', fp, hdp21StackAdvisorPath, ('.py', 'rb', imp.PY_SOURCE))
+    clazz = getattr(stack_advisor_impl, hdp21StackAdvisorClassName)
+    self.stackAdvisor = clazz()
+
+  def test_recommendOozieConfigurations_noFalconServer(self):
+    configurations = {}
+    clusterData = {
+      "components" : []
+    }
+    expected = {
+    }
+
+    self.stackAdvisor.recommendOozieConfigurations(configurations, clusterData)
+    self.assertEquals(configurations, expected)
+
+  def test_recommendOozieConfigurations_withFalconServer(self):
+    configurations = {}
+    clusterData = {
+      "components" : ["FALCON_SERVER"]
+    }
+    expected = {
+      "oozie-site": {
+        "properties": {
+          "oozie.services.ext": "org.apache.oozie.service.JMSAccessorService," +
+                                "org.apache.oozie.service.PartitionDependencyManagerService," +
+                                "org.apache.oozie.service.HCatAccessorService"
+        }
+      }
+    }
+
+    self.stackAdvisor.recommendOozieConfigurations(configurations, clusterData)
+    self.assertEquals(configurations, expected)
+
+  def test_recommendHiveConfigurations_mapMemoryLessThan2048(self):
+    configurations = {}
+    clusterData = {
+      "mapMemory": 567,
+      "reduceMemory": 2056,
+      "containers": 3,
+      "ramPerContainer": 1024
+    }
+    expected = {
+      "hive-site": {
+        "properties": {
+          "hive.auto.convert.join.noconditionaltask.size": "718274560",
+          "hive.tez.java.opts": "-server -Xmx1645m -Djava.net.preferIPv4Stack=true -XX:NewRatio=8 -XX:+UseNUMA -XX:+UseParallelGC",
+          "hive.tez.container.size": "2056"
+        }
+      }
+    }
+
+    self.stackAdvisor.recommendHiveConfigurations(configurations, clusterData)
+    self.assertEquals(configurations, expected)
+
+  def test_recommendHiveConfigurations_mapMemoryMoreThan2048(self):
+    configurations = {}
+    clusterData = {
+      "mapMemory": 3000,
+      "reduceMemory": 2056,
+      "containers": 3,
+      "ramPerContainer": 1024
+    }
+    expected = {
+      "hive-site": {
+        "properties": {
+          "hive.auto.convert.join.noconditionaltask.size": "1048576000",
+          "hive.tez.java.opts": "-server -Xmx2400m -Djava.net.preferIPv4Stack=true -XX:NewRatio=8 -XX:+UseNUMA -XX:+UseParallelGC",
+          "hive.tez.container.size": "3000"
+        }
+      }
+    }
+
+    self.stackAdvisor.recommendHiveConfigurations(configurations, clusterData)
+    self.assertEquals(configurations, expected)
+
+  def test_recommendHiveConfigurations_containersRamIsLess(self):
+    configurations = {}
+    clusterData = {
+      "mapMemory": 3000,
+      "reduceMemory": 2056,
+      "containers": 3,
+      "ramPerContainer": 256
+    }
+    expected = {
+      "hive-site": {
+        "properties": {
+          "hive.auto.convert.join.noconditionaltask.size": "268435456",
+          "hive.tez.java.opts": "-server -Xmx614m -Djava.net.preferIPv4Stack=true -XX:NewRatio=8 -XX:+UseNUMA -XX:+UseParallelGC",
+          "hive.tez.container.size": "768"
+        }
+      }
+    }
+
+    self.stackAdvisor.recommendHiveConfigurations(configurations, clusterData)
+    self.assertEquals(configurations, expected)