Added Integration test for CustomResource with multiple versions

+ Added IT for a CustomResource with two different versions v1 and
  v1beta1 using the same POJO by providing different
  CustomResourceDefinitionContexts

Related to fabric8io#2738

kubernetes-itests/src/test/java/io/fabric8/crd/bicycle/Bicycle.java

@@ -0,0 +1,21 @@
+package io.fabric8.crd.bicycle;
+
+import io.fabric8.kubernetes.client.CustomResource;
+import io.fabric8.kubernetes.model.annotation.Group;
+import io.fabric8.kubernetes.model.annotation.Version;
+
+@Version("v1")
+@Group("demos.fabric8.io")
+public class Bicycle extends CustomResource<BicycleSpec, BicycleStatus> {
+  private String apiVersion;
+
+  @Override
+  public void setApiVersion(String version) {
+    this.apiVersion = version;
+  }
+
+  @Override
+  public String getApiVersion() {
+    return this.apiVersion;
+  }
+}

kubernetes-itests/src/test/java/io/fabric8/crd/bicycle/BicycleList.java

@@ -0,0 +1,6 @@
+package io.fabric8.crd.bicycle;
+
+import io.fabric8.kubernetes.client.CustomResourceList;
+
+public class BicycleList extends CustomResourceList<Bicycle> {
+}

kubernetes-itests/src/test/java/io/fabric8/crd/bicycle/BicycleSpec.java

@@ -0,0 +1,49 @@
+package io.fabric8.crd.bicycle;
+
+public class BicycleSpec {
+    private int cadence;
+    private int gear;
+    private int speed;
+    private String modelName;
+
+    public int getCadence() {
+        return cadence;
+    }
+
+    public void setCadence(int cadence) {
+        this.cadence = cadence;
+    }
+
+    public int getGear() {
+        return gear;
+    }
+
+    public void setGear(int gear) {
+        this.gear = gear;
+    }
+
+    public int getSpeed() {
+        return speed;
+    }
+
+    public void setSpeed(int speed) {
+        this.speed = speed;
+    }
+
+    public String getModelName() {
+        return modelName;
+    }
+
+    public void setModelName(String modelName) {
+        this.modelName = modelName;
+    }
+
+    @Override
+    public String toString() {
+        return "BicycleSpec{" +
+                "modelName=" + this.modelName +
+                "gear=" + this.gear +
+                "speed=" + this.speed +
+                "cadence=" + this.cadence + "}";
+    }
+}

kubernetes-itests/src/test/java/io/fabric8/crd/bicycle/BicycleStatus.java

@@ -0,0 +1,12 @@
+package io.fabric8.crd.bicycle;
+
+public class BicycleStatus {
+    private boolean isInUse;
+    public boolean isInUse() {
+        return isInUse;
+    }
+
+    public void setInUse(boolean inUse) {
+        isInUse = inUse;
+    }
+}

kubernetes-itests/src/test/java/io/fabric8/kubernetes/CustomResourceDefinitionMultipleVersionsSamePojoTest.java

@@ -0,0 +1,112 @@
+package io.fabric8.kubernetes;
+
+import io.fabric8.commons.AssumingK8sVersionAtLeast;
+import io.fabric8.commons.ClusterEntity;
+import io.fabric8.crd.bicycle.Bicycle;
+import io.fabric8.crd.bicycle.BicycleList;
+import io.fabric8.crd.bicycle.BicycleSpec;
+import io.fabric8.kubernetes.api.model.ObjectMetaBuilder;
+import io.fabric8.kubernetes.client.KubernetesClient;
+import io.fabric8.kubernetes.client.dsl.MixedOperation;
+import io.fabric8.kubernetes.client.dsl.Resource;
+import io.fabric8.kubernetes.client.dsl.base.CustomResourceDefinitionContext;
+import org.arquillian.cube.kubernetes.impl.requirement.RequiresKubernetes;
+import org.arquillian.cube.requirement.ArquillianConditionalRunner;
+import org.jboss.arquillian.test.api.ArquillianResource;
+import org.junit.AfterClass;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.ClassRule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+@RunWith(ArquillianConditionalRunner.class)
+@RequiresKubernetes
+public class CustomResourceDefinitionMultipleVersionsSamePojoTest {
+  private MixedOperation<Bicycle, BicycleList, Resource<Bicycle>> v1BicycleClient;
+  private MixedOperation<Bicycle, BicycleList, Resource<Bicycle>> v1beta1BicycleClient;
+
+  @ArquillianResource
+  KubernetesClient client;
+
+  @ClassRule
+  public static final AssumingK8sVersionAtLeast assumingK8sVersion = new AssumingK8sVersionAtLeast("1", "16");
+
+  @BeforeClass
+  public static void init() {
+    ClusterEntity.apply(CustomResourceDefinitionMultipleVersionsSamePojoTest.class.getResourceAsStream("/bicycle-crd.yml"));
+  }
+
+  @Before
+  public void initPetClientAndCurrentNamespace() {
+    v1BicycleClient = client.customResources(new CustomResourceDefinitionContext.Builder()
+      .withGroup("demos.fabric8.io")
+      .withPlural("bicycles")
+      .withVersion("v1")
+      .withScope("Cluster")
+      .build(), Bicycle.class, BicycleList.class);
+    v1beta1BicycleClient = client.customResources(new CustomResourceDefinitionContext.Builder()
+      .withGroup("demos.fabric8.io")
+      .withPlural("bicycles")
+      .withVersion("v1beta1")
+      .withScope("Cluster")
+      .build(), Bicycle.class, BicycleList.class);
+  }
+
+  @Test
+  public void v1CreateListDelete() {
+    // Create
+    String name = "santa-cruz-heckler-mx-carbon";
+    Bicycle bicycle = createBicycle("v1", name, 60, 8, 20, "Heckler");
+    Bicycle createdBicycle = v1BicycleClient.create(bicycle);
+    assertThat(createdBicycle).isNotNull();
+
+    // List
+    BicycleList bicycleList = v1BicycleClient.list();
+    assertThat(bicycleList).isNotNull();
+    assertThat(bicycleList.getItems()).hasSizeGreaterThanOrEqualTo(1);
+
+    // Delete
+    Boolean isDeleted = v1BicycleClient.withName(name).delete();
+    assertThat(isDeleted).isTrue();
+  }
+
+  @Test
+  public void v1beta1CreateListDelete() {
+    // Create
+    String name = "pinarello-grevil-grx-gravel";
+    Bicycle bicycle = createBicycle("v1beta1", name, 68, 4, 18, "GRX 1x 650b Gravel");
+    Bicycle createdBicycle = v1beta1BicycleClient.create(bicycle);
+    assertThat(createdBicycle).isNotNull();
+
+    // List
+    BicycleList bicycleList = v1beta1BicycleClient.list();
+    assertThat(bicycleList).isNotNull();
+    assertThat(bicycleList.getItems()).hasSizeGreaterThanOrEqualTo(1);
+
+    // Delete
+    Boolean isDeleted = v1beta1BicycleClient.withName(name).delete();
+    assertThat(isDeleted).isTrue();
+  }
+
+  @AfterClass
+  public static void cleanup() {
+    ClusterEntity.remove(CustomResourceDefinitionMultipleVersionsSamePojoTest.class.getResourceAsStream("/bicycle-crd.yml"));
+  }
+
+  private Bicycle createBicycle(String version, String name, int cadence, int gear, int speed, String modelName) {
+    Bicycle bicycle = new Bicycle();
+    bicycle.setApiVersion(bicycle.getGroup() + "/" + version);
+    bicycle.setMetadata(new ObjectMetaBuilder().withName(name).build());
+    BicycleSpec bicycleSpec = new BicycleSpec();
+
+    bicycleSpec.setCadence(cadence);
+    bicycleSpec.setGear(gear);
+    bicycleSpec.setSpeed(speed);
+    bicycleSpec.setModelName(modelName);
+
+    return bicycle;
+  }
+}

kubernetes-itests/src/test/resources/bicycle-crd.yml

@@ -0,0 +1,64 @@
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  name: bicycles.demos.fabric8.io
+spec:
+  group: demos.fabric8.io
+  versions:
+    - name: v1
+      served: true
+      storage: true
+      schema:
+        openAPIV3Schema:
+          type: object
+          properties:
+            spec:
+              type: object
+              properties:
+                cadence:
+                  type: integer
+                gear:
+                  type: integer
+                speed:
+                  type: integer
+                modelName:
+                  type: string
+            status:
+              type: object
+              properties:
+                isInUse:
+                  type: boolean
+      subresources:
+        status: {}
+    - name: v1beta1
+      served: true
+      storage: false
+      schema:
+        openAPIV3Schema:
+          type: object
+          properties:
+            spec:
+              type: object
+              properties:
+                cadence:
+                  type: integer
+                gear:
+                  type: integer
+                speed:
+                  type: integer
+                modelName:
+                  type: string
+            status:
+              type: object
+              properties:
+                isInUse:
+                  type: boolean
+      subresources:
+        status: {}
+  scope: Cluster
+  names:
+    plural: bicycles
+    singular: bicycle
+    kind: Bicycle
+    shortNames:
+      - bicycle