Add tests for the peer network list command

Add tests for the peer network list command while also bringing in the
testify package into the vendor folder to use as a library for
assertions and mocking.

Change-Id: Iffbd966c84b132c78dc0e60655ad16231746a9b7
Signed-off-by: Julian Carrivick <cjulian@au1.ibm.com>

bddtests/docker-compose-1-empty.yml

@@ -0,0 +1,3 @@
+empty:
+  image: hyperledger/fabric-src
+  command: bash -c "sleep inf"

bddtests/peer_cli.feature

@@ -0,0 +1,24 @@
+#
+# Test Command Line Features of a Peer
+#
+
+Feature: Peer Command Line Interface
+    As a User of the Fabric
+    I want the command line interface to work correctly
+
+    Scenario: List Peers when none are up
+    Given we compose "docker-compose-1-empty.yml"
+    When I execute "peer network list" in container empty
+    Then the command should not complete successfully
+
+    Scenario: List Peers when one is up
+    Given we compose "docker-compose-1.yml"
+    When I execute "peer network list" in container vp0
+    Then the command should complete successfully
+    And stdout should contain JSON
+
+    Scenario: List Peers when two are up
+    Given we compose "docker-compose-2.yml"
+    When I execute "peer network list" in container vp0
+    Then the command should complete successfully
+    And stdout should contain JSON with "peers" array of length 1

bddtests/steps/bdd_test_util.py

@@ -26,8 +26,6 @@ def cli_call(context, arg_list, expect_success=True):
     @param expect_success: use False to return even if an error occurred when executing the command
     @return: (string, string, int) output message, error message, return code
     """
-    #arg_list[0] = "update-" + arg_list[0]
-
     # We need to run the cli command by actually calling the python command
     # the update-cli.py script has a #!/bin/python as the first line
     # which calls the system python, not the virtual env python we

bddtests/steps/peer_basic_impl.py

@@ -372,6 +372,7 @@ def invokeChaincode(context, devopsFunc, functionName, containerName, idGenAlg=N
 
     context.chaincodeSpec['ctorMsg']['args'] = args
     context.chaincodeSpec['attributes'] = attributes
+
     #If idGenAlg is passed then, we still using the deprecated devops API because this parameter can't be passed in the new API.
     if idGenAlg != None:
         invokeUsingDevopsService(context, devopsFunc, functionName, containerName, idGenAlg)
@@ -825,3 +826,7 @@ def prepend(elem, l):
     if l is None or l == "":
         return [elem]
     return [elem] + l
+
+@given(u'I do nothing')
+def step_impl(context):
+    pass

bddtests/steps/peer_cli_impl.py

@@ -0,0 +1,89 @@
+#
+# Copyright IBM Corp. 2016 All Rights Reserved.
+#
+# Licensed 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 json
+from behave import *
+from bdd_test_util import cli_call, fullNameFromContainerNamePart
+from peer_basic_impl import getAttributeFromJSON
+
+@when(u'I execute "{command}" in container {containerName}')
+def step_impl(context, command, containerName):
+    executeCommandInContainer(context, command, containerName)
+
+def executeCommandInContainer(context, command, container):
+    fullContainerName = fullNameFromContainerNamePart(container, context.compose_containers)
+    command = "docker exec {} {}".format(fullContainerName, command)
+    executeCommand(context, command)
+
+def executeCommand(context, command):
+    # cli_call expects an array of arguments, hence splitting here.
+    commandArgs = command.split()
+    stdout, stderr, retcode = cli_call(context, commandArgs, expect_success=False)
+
+    context.command = {
+        "stdout": stdout,
+        "stderr": stderr,
+        "returnCode": retcode
+    }
+
+@then(u'the command should not complete successfully')
+def step_impl(context):
+    assert not commandCompletedSuccessfully(context)
+
+@then(u'the command should complete successfully')
+def step_impl(context):
+    assert commandCompletedSuccessfully(context)
+
+def commandCompletedSuccessfully(context):
+    return isSuccessfulReturnCode(context.command["returnCode"])
+
+def isSuccessfulReturnCode(returnCode):
+    return returnCode == 0
+
+@then(u'{stream} should contain JSON')
+def step_impl(context, stream):
+    assertIsJson(context.command[stream])
+
+@then(u'{stream} should contain JSON with "{attribute}" array of length {length}')
+def step_impl(context, stream, attribute, length):
+    data = context.command[stream]
+    assertIsJson(data)
+
+    json = decodeJson(data)
+    array = getAttribute(attribute, json)
+    assertLength(array, int(length))
+
+def assertIsJson(data):
+    assert isJson(data), "Data is not in JSON format"
+
+def isJson(data):
+    try:
+        decodeJson(data)
+    except ValueError:
+        return False
+
+    return True
+
+def decodeJson(data):
+    return json.loads(data)
+
+def getAttribute(attribute, json):
+    return getAttributeFromJSON(attribute, json,
+        "Attribute '{}' missing from JSON".format(attribute))
+
+def assertLength(array, length):
+    arrayLength = len(array)
+    assert arrayLength == length, "Unexpected array length. Expected {}, got {}".format(length, arrayLength)

peer/network/list_test.go

@@ -0,0 +1,32 @@
+/*
+Copyright IBM Corp. 2016 All Rights Reserved.
+
+Licensed 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.
+*/
+
+package network
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestListCmd(t *testing.T) {
+	require := require.New(t)
+	cmd := listCmd()
+
+	require.NotNil(cmd)
+	require.Equal("list", cmd.Name())
+	require.NotNil(cmd.RunE)
+}