Add new OIDC Auth integration tests

Add integration tests for Databricks Service Principal (M2M) and Azure
Client Secret authentication types.

This increases coverage for existing Auth types by adding:
- Workspace OAuth M2M authentication test
- Workspace Azure Client Secret authentication test
- Account OAuth M2M authentication test
- Account Azure Client Secret authentication test

These tests verify that authentication works correctly by making API
calls and validating responses.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: hectorcast-db

databricks-sdk-java/src/test/java/com/databricks/sdk/integration/DatabricksOidcAccountIT.java

@@ -0,0 +1,73 @@
+package com.databricks.sdk.integration;
+
+import com.databricks.sdk.AccountClient;
+import com.databricks.sdk.core.DatabricksConfig;
+import com.databricks.sdk.integration.framework.EnvContext;
+import com.databricks.sdk.integration.framework.EnvOrSkip;
+import com.databricks.sdk.integration.framework.EnvTest;
+import com.databricks.sdk.service.iam.ListAccountServicePrincipalsRequest;
+import com.databricks.sdk.service.iam.ServicePrincipal;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+@ExtendWith(EnvTest.class)
+@EnvContext("account")
+public class DatabricksOidcAccountIT {
+  private static final Logger LOG = LoggerFactory.getLogger(DatabricksOidcAccountIT.class);
+
+  @Test
+  void testAccountOAuthM2MAuth(
+      @EnvOrSkip("CLOUD_ENV") String cloudEnv,
+      @EnvOrSkip("DATABRICKS_HOST") String host,
+      @EnvOrSkip("DATABRICKS_ACCOUNT_ID") String accountId,
+      @EnvOrSkip("TEST_DATABRICKS_CLIENT_ID") String clientId,
+      @EnvOrSkip("TEST_DATABRICKS_CLIENT_SECRET") String clientSecret) {
+    LOG.info("Cloud environment: {}", cloudEnv);
+
+    // Create account client with OAuth M2M authentication
+    DatabricksConfig config =
+        new DatabricksConfig()
+            .setHost(host)
+            .setAccountId(accountId)
+            .setClientId(clientId)
+            .setClientSecret(clientSecret)
+            .setAuthType("oauth-m2m");
+
+    AccountClient ac = new AccountClient(config);
+
+    // List service principals to verify authentication works
+    Iterable<ServicePrincipal> servicePrincipals =
+        ac.servicePrincipals().list(new ListAccountServicePrincipalsRequest());
+    servicePrincipals.iterator().next();
+  }
+
+  @Test
+  void testAccountAzureClientSecretAuth(
+      @EnvOrSkip("CLOUD_ENV") String cloudEnv,
+      @EnvOrSkip("DATABRICKS_HOST") String host,
+      @EnvOrSkip("DATABRICKS_ACCOUNT_ID") String accountId,
+      @EnvOrSkip("ARM_CLIENT_ID") String azureClientId,
+      @EnvOrSkip("ARM_CLIENT_SECRET") String azureClientSecret,
+      @EnvOrSkip("ARM_TENANT_ID") String azureTenantId) {
+    LOG.info("Cloud environment: {}", cloudEnv);
+
+    // Create account client with Azure client secret authentication
+    DatabricksConfig config =
+        new DatabricksConfig()
+            .setHost(host)
+            .setAccountId(accountId)
+            .setAzureClientId(azureClientId)
+            .setAzureClientSecret(azureClientSecret)
+            .setAzureTenantId(azureTenantId)
+            .setAuthType("azure-client-secret");
+
+    AccountClient ac = new AccountClient(config);
+
+    // List service principals to verify authentication works
+    Iterable<ServicePrincipal> servicePrincipals =
+        ac.servicePrincipals().list(new ListAccountServicePrincipalsRequest());
+    servicePrincipals.iterator().next();
+  }
+}

databricks-sdk-java/src/test/java/com/databricks/sdk/integration/DatabricksOidcWorkspaceIT.java

@@ -0,0 +1,72 @@
+package com.databricks.sdk.integration;
+
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+
+import com.databricks.sdk.WorkspaceClient;
+import com.databricks.sdk.core.DatabricksConfig;
+import com.databricks.sdk.integration.framework.EnvContext;
+import com.databricks.sdk.integration.framework.EnvOrSkip;
+import com.databricks.sdk.integration.framework.EnvTest;
+import com.databricks.sdk.service.iam.User;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+@ExtendWith(EnvTest.class)
+@EnvContext("ucws")
+public class DatabricksOidcWorkspaceIT {
+  private static final Logger LOG = LoggerFactory.getLogger(DatabricksOidcWorkspaceIT.class);
+
+  @Test
+  void testWorkspaceOAuthM2MAuth(
+      @EnvOrSkip("CLOUD_ENV") String cloudEnv,
+      @EnvOrSkip("DATABRICKS_HOST") String host,
+      @EnvOrSkip("TEST_DATABRICKS_CLIENT_ID") String clientId,
+      @EnvOrSkip("TEST_DATABRICKS_CLIENT_SECRET") String clientSecret) {
+    LOG.info("Cloud environment: {}", cloudEnv);
+
+    // Create workspace client with OAuth M2M authentication
+    DatabricksConfig config =
+        new DatabricksConfig()
+            .setHost(host)
+            .setClientId(clientId)
+            .setClientSecret(clientSecret)
+            .setAuthType("oauth-m2m");
+
+    WorkspaceClient ws = new WorkspaceClient(config);
+
+    // Call the "me" API
+    User me = ws.currentUser().me();
+
+    // Verify we got a valid response
+    assertNotNull(me.getUserName(), "Expected non-empty UserName");
+  }
+
+  @Test
+  void testWorkspaceAzureClientSecretAuth(
+      @EnvOrSkip("CLOUD_ENV") String cloudEnv,
+      @EnvOrSkip("DATABRICKS_HOST") String host,
+      @EnvOrSkip("ARM_CLIENT_ID") String azureClientId,
+      @EnvOrSkip("ARM_CLIENT_SECRET") String azureClientSecret,
+      @EnvOrSkip("ARM_TENANT_ID") String azureTenantId) {
+    LOG.info("Cloud environment: {}", cloudEnv);
+
+    // Create workspace client with Azure client secret authentication
+    DatabricksConfig config =
+        new DatabricksConfig()
+            .setHost(host)
+            .setAzureClientId(azureClientId)
+            .setAzureClientSecret(azureClientSecret)
+            .setAzureTenantId(azureTenantId)
+            .setAuthType("azure-client-secret");
+
+    WorkspaceClient ws = new WorkspaceClient(config);
+
+    // Call the "me" API
+    User me = ws.currentUser().me();
+
+    // Verify we got a valid response
+    assertNotNull(me.getUserName(), "Expected non-empty UserName");
+  }
+}