[Tomcat] Add unit-tests to Tomcat application

It contains mock examples and shows how to
test tomcat application deployment without murano-engine
and heat set up

Change-Id: Ic00209dce747c11c56734ae440b8d78a63bd42c1

Tomcat/package/Classes/TomcatTest.yaml

@@ -0,0 +1,71 @@
+
+Namespaces:
+  =: io.murano.test
+  sys: io.murano.system
+
+Extends: TestFixture
+
+Name: TomcatTest
+
+Methods:
+    initialize:
+        Body:
+            # Object model can be loaded from json file, or provided
+            # directly in MuranoPL code as a yaml insertion.
+            - $.appJson: new(sys:Resources).json('tomcat-for-mock.json')
+            - $.heatOutput: new(sys:Resources).json('output.json')
+            - $.log: logger('test')
+            - $.agentCallCount: 0
+
+    # Mock method to replace the original one
+    agentMock:
+      Arguments:
+        - template:
+            Contract: $
+        - resources:
+            Contract: $
+        - timeout:
+            Contract: $
+            Default: null
+      Body:
+        - $.log.info('Mocking murano agent')
+        - $.assertEqual('Deploy Tomcat', $template.Name)
+        - $.agentCallCount: $.agentCallCount + 1
+
+    # Mock method, that returns predefined heat stack output
+    getStackOut:
+      Body:
+        - $.log.info('Mocking heat stack')
+        - Return: $.heatOutput
+
+    testDeploy1:
+      Body:
+        # Loading object model
+        - $.env: $this.load($.appJson)
+
+        # Set up mock for the push method of *io.murano.system.HeatStack* class
+        - inject(sys:HeatStack, push, $.heatOutput)
+
+        # Set up mock for the concrete object with mock method name
+        - inject($.env.stack, output, $.heatOutput)
+
+        # Set up mock with YAQL function
+        - inject('io.murano.system.Agent', call, $this, agentMock)
+
+        # Mocks will be called instead of original function during the deployment
+        - $.env.deploy()
+
+        # Check, that mock worked correctly
+        - $.assertEqual($.agentCallCount, 1)
+
+
+    testDeploy2:
+      Body:
+        - inject(sys:HeatStack, push,  $this, getStackOut)
+        - inject(sys:HeatStack, output, $this, getStackOut)
+
+        # Mock is defined with YAQL function and it will print the original variable (agent template)
+        - inject(sys:Agent, call, withOriginal(t => $template) -> $.log.info('{0}', $t))
+
+        - $.env: $this.load($.appJson)
+        - $.env.deploy()

Tomcat/package/Resources/output.json

@@ -0,0 +1,8 @@
+{
+    "cnxubigthiddg2-id": "f86c752d-dd4f-42e0-9982-3e66072362c7",
+    "cnxubigthiddg2-assigned-ips": {
+        "quick-env-1-network-8604202a0f1a40419dcdda0fbc7a25da": [
+            "10.0.168.2"
+        ]
+    },
+    "quick-env-1-network-id": "1dd9652c-87df-43ee-8a1c-d31e78912b08"}

Tomcat/package/Resources/tomcat-for-mock.json

@@ -0,0 +1,41 @@
+{"Attributes": [], "Objects": {
+    "defaultNetworks": {
+        "environment": {
+            "name": "quick-env-1-network",
+            "?": {
+                "type": "io.murano.resources.NeutronNetwork",
+                "id": "326e367d49f34d4c8d3b234d053411f3"
+            }
+        },
+        "flat": null
+    },
+    "name": "test",
+    "?": {
+        "type": "io.murano.Environment",
+        "id": "41549905e496409685339575dbd01894"
+    },
+    "applications": [
+        {
+            "instance": {
+                "availabilityZone": "nova",
+                "name": "cnxubigthiddg2",
+                "assignFloatingIp": false,
+                "keyname": "kate",
+                "flavor": "m1.medium",
+                "image": "283aa37f-d18a-48fc-b94e-c0721dbcf059",
+                "?": {
+                    "type": "io.murano.resources.LinuxMuranoInstance",
+                    "id": "13e3c264-f002-4958-a619-94d13d7fa3f5"
+                }
+            },
+            "name": "Tomcat",
+            "?": {
+                "_26411a1861294160833743e45d0eaad9": {
+                    "name": "Apache Tomcat"
+                },
+                "type": "io.murano.apps.apache.Tomcat",
+                "id": "312534e2-f1aa-4ed3-811c-7f5c10530484"
+            }
+        }
+    ]
+}}

Tomcat/package/manifest.yaml

@@ -20,3 +20,4 @@ Author: 'Mirantis, Inc'
 Tags: [Servlets, Server, Pages, Java]
 Classes:
  io.murano.apps.apache.Tomcat: Tomcat.yaml
+ io.murano.test.TomcatTest: TomcatTest.yaml