fix(java): enable skipped tests for Native Image testing

CONTRIBUTING.md

@@ -68,4 +68,11 @@ mvn install -DskipUnitTests
 
 # To skip all tests
 mvn install -DskipTests
-```
+```
+
+
+## Native Image Testing
+Native Image testing is enabled for tests that follow a particular naming
+convention (`IT*` or `*ClientTest`). Unit tests that use Mockito or EasyMock
+have been excluded for the time being as they are not compatible with native
+image compilation. 

google-cloud-bigtable-emulator/pom.xml

@@ -69,8 +69,8 @@
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-dependency-plugin</artifactId>
         <configuration>
-          <!-- grpc-netty-shaded is used at test runtime -->
-          <usedDependencies>io.grpc:grpc-netty-shaded</usedDependencies>
+          <!-- grpc-netty-shaded is used at test runtime. gax-grpc is used for native image support -->
+          <usedDependencies>io.grpc:grpc-netty-shaded,com.google.api:gax-grpc</usedDependencies>
         </configuration>
       </plugin>
     </plugins>
@@ -101,6 +101,15 @@
       <groupId>com.google.api</groupId>
       <artifactId>api-common</artifactId>
     </dependency>
+
+
+    <!-- This is needed when running the emulator classes with native image compilation -->
+    <dependency>
+      <groupId>com.google.api</groupId>
+      <artifactId>gax-grpc</artifactId>
+    </dependency>
+    <!-- This is needed when running the emulator classes with native image compilation -->
+
     <dependency>
       <groupId>io.grpc</groupId>
       <artifactId>grpc-api</artifactId>

google-cloud-bigtable-emulator/src/main/resources/META-INF/native-image/com.google.cloud/google-cloud-bigtable-emulator/resource-config.json

@@ -0,0 +1,21 @@
+{
+  "resources":{
+    "includes":[
+      {
+        "pattern":"\\Qgcloud/bigtable-linux-x86_64/platform/bigtable-emulator/cbtemulator\\E"
+      },
+      {
+        "pattern":"\\Qgcloud/bigtable-darwin-x86_64/platform/bigtable-emulator/cbtemulator\\E"
+      },
+      {
+        "pattern":"\\Qgcloud/bigtable-linux-x86/platform/bigtable-emulator/cbtemulator\\E"
+      },
+      {
+        "pattern": "\\Qgcloud/bigtable-windows-x86_64/platform/bigtable-emulator/cbtemulator.exe\\E"
+      },
+      {
+        "pattern":"\\Qgcloud/bigtable-linux-arm/platform/bigtable-emulator/cbtemulator\\E"
+      }
+    ]},
+  "bundles":[]
+}

google-cloud-bigtable-emulator/src/test/java/com/google/cloud/bigtable/emulator/v2/BigtableEmulatorRuleTest.java → google-cloud-bigtable-emulator/src/test/java/com/google/cloud/bigtable/emulator/v2/ITBigtableEmulatorRuleTest.java

@@ -38,7 +38,7 @@
 import org.junit.runners.JUnit4;
 
 @RunWith(JUnit4.class)
-public class BigtableEmulatorRuleTest {
+public class ITBigtableEmulatorRuleTest {
   @Rule public BigtableEmulatorRule bigtableRule = BigtableEmulatorRule.create();
   private BigtableTableAdminBlockingStub tableAdminStub;
   private BigtableBlockingStub dataStub;

google-cloud-bigtable/src/test/java/com/google/cloud/bigtable/admin/v2/BigtableInstanceAdminClientTest.java → google-cloud-bigtable/src/test/java/com/google/cloud/bigtable/admin/v2/BigtableInstanceAdminClientTests.java

@@ -81,7 +81,12 @@
 import org.mockito.stubbing.Answer;
 
 @RunWith(JUnit4.class)
-public class BigtableInstanceAdminClientTest {
+/**
+ * Tests for {@link BigtableTableAdminClient}. This test class uses Mockito so it has been
+ * explicitly excluded from Native Image testing by not following the naming convention of (IT* and
+ * *ClientTest).
+ */
+public class BigtableInstanceAdminClientTests {
   @Rule public MockitoRule mockitoRule = MockitoJUnit.rule().strictness(Strictness.WARN);
 
   private static final String PROJECT_ID = "my-project";

google-cloud-bigtable/src/test/java/com/google/cloud/bigtable/admin/v2/BigtableTableAdminClientTest.java → google-cloud-bigtable/src/test/java/com/google/cloud/bigtable/admin/v2/BigtableTableAdminClientTests.java

@@ -91,7 +91,12 @@
 import org.threeten.bp.Instant;
 
 @RunWith(JUnit4.class)
-public class BigtableTableAdminClientTest {
+/**
+ * Tests for {@link BigtableTableAdminClient}. This test class uses Mockito so it has been
+ * explicitly excluded from Native Image testing by not following the naming convention of (IT* and
+ * *ClientTest).
+ */
+public class BigtableTableAdminClientTests {
   @Rule public final MockitoRule mockitoRule = MockitoJUnit.rule();
 
   private static final String PROJECT_ID = "my-project";

google-cloud-bigtable/src/test/java/com/google/cloud/bigtable/data/v2/BigtableDataClientTest.java → google-cloud-bigtable/src/test/java/com/google/cloud/bigtable/data/v2/BigtableDataClientTests.java

@@ -56,7 +56,12 @@
 import org.mockito.stubbing.Answer;
 
 @RunWith(JUnit4.class)
-public class BigtableDataClientTest {
+/**
+ * Tests for {@link BigtableDataClient}. This test class uses Mockito so it has been explicitly
+ * excluded from Native Image testing by not following the naming convention of (IT* and
+ * *ClientTest).
+ */
+public class BigtableDataClientTests {
 
   @Rule public MockitoRule mockitoRule = MockitoJUnit.rule().strictness(Strictness.WARN);