diff --git a/.buildkite/ftr_platform_stateful_configs.yml b/.buildkite/ftr_platform_stateful_configs.yml
index 46738798b82d7..2a4026ee0feaa 100644
--- a/.buildkite/ftr_platform_stateful_configs.yml
+++ b/.buildkite/ftr_platform_stateful_configs.yml
@@ -17,6 +17,7 @@ disabled:
   - x-pack/test/functional_basic/apps/ml/config.base.ts
   - x-pack/test/functional_basic/apps/transform/config.base.ts
   - x-pack/platform/test/api_integration_basic/config.basic_license.ts
+  - x-pack/platform/test/ui_capabilities/common/config.ts
 
   # QA suites that are run out-of-band
   - x-pack/test/stack_functional_integration/configs/config.stack_functional_integration_base.js
@@ -161,7 +162,7 @@ enabled:
   - x-pack/platform/test/cases_api_integration/security_and_spaces/config_trial.ts
   - x-pack/platform/test/cases_api_integration/security_and_spaces/config_no_public_base_url.ts
   - x-pack/platform/test/cases_api_integration/spaces_only/config.ts
-  - x-pack/test/disable_ems/config.ts
+  - x-pack/platform/test/disable_ems/config.ts
   - x-pack/platform/test/examples/config.ts
   - x-pack/test/fleet_api_integration/config.agent.ts
   - x-pack/test/fleet_api_integration/config.agent_policy.ts
@@ -183,7 +184,7 @@ enabled:
   - x-pack/test/functional_basic/apps/transform/feature_controls/config.ts
   - x-pack/platform/test/functional_cors/config.ts
   - x-pack/platform/test/functional_embedded/config.ts
-  - x-pack/test/functional_execution_context/config.ts
+  - x-pack/platform/test/functional_execution_context/config.ts
   - x-pack/test/functional_with_es_ssl/apps/cases/group1/config.ts
   - x-pack/test/functional_with_es_ssl/apps/cases/group2/config.ts
   - x-pack/test/functional_with_es_ssl/apps/cases/basic/config.ts
@@ -327,8 +328,8 @@ enabled:
   - x-pack/test/spaces_api_integration/security_and_spaces/copy_to_space_config_trial.ts
   - x-pack/test/spaces_api_integration/spaces_only/config.ts
   - x-pack/platform/test/task_manager_claimer_update_by_query/config.ts
-  - x-pack/test/ui_capabilities/security_and_spaces/config.ts
-  - x-pack/test/ui_capabilities/spaces_only/config.ts
+  - x-pack/platform/test/ui_capabilities/security_and_spaces/config.ts
+  - x-pack/platform/test/ui_capabilities/spaces_only/config.ts
   - x-pack/test/upgrade_assistant_integration/config.ts
   - x-pack/platform/test/usage_collection/config.ts
   - x-pack/performance/journeys_e2e/aiops_log_rate_analysis.ts
diff --git a/.eslintrc.js b/.eslintrc.js
index c3cbdf0ce6045..dfa0c36249e7b 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -656,7 +656,7 @@ module.exports = {
         'x-pack/test/*/{tests,test_suites,apis,apps,deployment_agnostic}/**/*',
         'x-pack/test/*/*config.*ts',
         'x-pack/platform/test/saved_object_api_integration/*/apis/**/*',
-        'x-pack/test/ui_capabilities/*/tests/**/*',
+        'x-pack/platform/test/ui_capabilities/*/tests/**/*',
         'x-pack/test/upgrade_assistant_integration/**/*',
         'x-pack/test/performance/**/*.ts',
         '**/cypress.config.{js,ts}',
diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
index 4e7434102fcc1..8403ee65e27fa 100644
--- a/.github/CODEOWNERS
+++ b/.github/CODEOWNERS
@@ -493,7 +493,7 @@ examples/feature_flags_example @elastic/kibana-core
 x-pack/platform/test/plugin_api_integration/plugins/feature_usage_test @elastic/kibana-security
 x-pack/platform/plugins/shared/features @elastic/kibana-core
 x-pack/test/security_api_integration/plugins/features_provider @elastic/kibana-security
-x-pack/test/functional_execution_context/plugins/alerts @elastic/kibana-core
+x-pack/platform/test/functional_execution_context/plugins/alerts @elastic/kibana-core
 examples/field_formats_example @elastic/kibana-data-discovery
 src/platform/plugins/shared/field_formats @elastic/kibana-data-discovery
 src/platform/packages/shared/kbn-field-types @elastic/kibana-data-discovery
@@ -508,7 +508,7 @@ src/platform/plugins/shared/files @elastic/appex-sharedux
 packages/kbn-find-used-node-modules @elastic/kibana-operations
 x-pack/platform/plugins/shared/fleet @elastic/fleet
 src/platform/packages/shared/kbn-flot-charts @elastic/kibana-operations
-x-pack/test/ui_capabilities/common/plugins/foo_plugin @elastic/kibana-security
+x-pack/platform/test/ui_capabilities/common/plugins/foo_plugin @elastic/kibana-security
 src/platform/plugins/private/ftr_apis @elastic/kibana-core
 src/platform/packages/shared/kbn-ftr-common-functional-services @elastic/kibana-operations @elastic/appex-qa
 src/platform/packages/shared/kbn-ftr-common-functional-ui-services @elastic/appex-qa
@@ -1508,7 +1508,7 @@ x-pack/solutions/observability/plugins/observability/server/lib/esql_extensions
 ^/src/platform/test/functional/screenshots/baseline/tsvb_dashboard.png @elastic/kibana-presentation
 ^/src/platform/test/functional/screenshots/baseline/dashboard_*.png @elastic/kibana-presentation
 ^/src/platform/test/functional/screenshots/baseline/area_chart.png @elastic/kibana-presentation
-/x-pack/test/disable_ems @elastic/kibana-presentation # Assigned per https://github.com/elastic/kibana/pull/165986
+/x-pack/platform/test/disable_ems @elastic/kibana-presentation # Assigned per https://github.com/elastic/kibana/pull/165986
 /x-pack/test/functional/fixtures/kbn_archiver/dashboard* @elastic/kibana-presentation
 ^/src/platform/test/functional/page_objects/dashboard_page* @elastic/kibana-presentation
 ^/src/platform/test/functional/firefox/dashboard.config.ts @elastic/kibana-presentation # Assigned per: https://github.com/elastic/kibana/issues/15023
@@ -1870,7 +1870,7 @@ x-pack/platform/plugins/shared/ml/server/models/data_recognizer/modules/security
 /x-pack/test/functional/apps/saved_objects_management @elastic/kibana-core
 /x-pack/platform/test/usage_collection @elastic/kibana-core
 /x-pack/platform/test/licensing_plugin @elastic/kibana-core
-/x-pack/test/functional_execution_context @elastic/kibana-core
+/x-pack/platform/test/functional_execution_context @elastic/kibana-core
 /x-pack/platform/test/api_integration/apis/telemetry @elastic/kibana-core
 /x-pack/platform/test/api_integration/apis/status @elastic/kibana-core
 /x-pack/platform/test/api_integration/apis/stats @elastic/kibana-core
@@ -1982,7 +1982,7 @@ x-pack/platform/plugins/private/cloud_integrations/cloud_full_story/server/confi
 /x-pack/platform/test/api_integration/apis/security/ @elastic/kibana-security
 /x-pack/platform/test/api_integration/apis/spaces/ @elastic/kibana-security
 /x-pack/platform/test/api_integration_basic/apis/security/ @elastic/kibana-security
-/x-pack/test/ui_capabilities/ @elastic/kibana-security
+/x-pack/platform/test/ui_capabilities/ @elastic/kibana-security
 /x-pack/platform/test/encrypted_saved_objects_api_integration/ @elastic/kibana-security
 /x-pack/platform/test/functional/apps/security/ @elastic/kibana-security
 /x-pack/platform/test/functional/apps/spaces/ @elastic/kibana-security
diff --git a/package.json b/package.json
index e6de3e60dfa36..c2f3161b9faee 100644
--- a/package.json
+++ b/package.json
@@ -547,7 +547,7 @@
     "@kbn/feature-usage-test-plugin": "link:x-pack/platform/test/plugin_api_integration/plugins/feature_usage_test",
     "@kbn/features-plugin": "link:x-pack/platform/plugins/shared/features",
     "@kbn/features-provider-plugin": "link:x-pack/test/security_api_integration/plugins/features_provider",
-    "@kbn/fec-alerts-test-plugin": "link:x-pack/test/functional_execution_context/plugins/alerts",
+    "@kbn/fec-alerts-test-plugin": "link:x-pack/platform/test/functional_execution_context/plugins/alerts",
     "@kbn/field-formats-example-plugin": "link:examples/field_formats_example",
     "@kbn/field-formats-plugin": "link:src/platform/plugins/shared/field_formats",
     "@kbn/field-types": "link:src/platform/packages/shared/kbn-field-types",
@@ -561,7 +561,7 @@
     "@kbn/files-plugin": "link:src/platform/plugins/shared/files",
     "@kbn/fleet-plugin": "link:x-pack/platform/plugins/shared/fleet",
     "@kbn/flot-charts": "link:src/platform/packages/shared/kbn-flot-charts",
-    "@kbn/foo-plugin": "link:x-pack/test/ui_capabilities/common/plugins/foo_plugin",
+    "@kbn/foo-plugin": "link:x-pack/platform/test/ui_capabilities/common/plugins/foo_plugin",
     "@kbn/ftr-apis-plugin": "link:src/platform/plugins/private/ftr_apis",
     "@kbn/functional-with-es-ssl-cases-test-plugin": "link:x-pack/test/functional_with_es_ssl/plugins/cases",
     "@kbn/gen-ai-streaming-response-example-plugin": "link:x-pack/examples/gen_ai_streaming_response_example",
diff --git a/tsconfig.base.json b/tsconfig.base.json
index 4af9f97570172..aabbc9be99576 100644
--- a/tsconfig.base.json
+++ b/tsconfig.base.json
@@ -980,8 +980,8 @@
       "@kbn/features-plugin/*": ["x-pack/platform/plugins/shared/features/*"],
       "@kbn/features-provider-plugin": ["x-pack/test/security_api_integration/plugins/features_provider"],
       "@kbn/features-provider-plugin/*": ["x-pack/test/security_api_integration/plugins/features_provider/*"],
-      "@kbn/fec-alerts-test-plugin": ["x-pack/test/functional_execution_context/plugins/alerts"],
-      "@kbn/fec-alerts-test-plugin/*": ["x-pack/test/functional_execution_context/plugins/alerts/*"],
+      "@kbn/fec-alerts-test-plugin": ["x-pack/platform/test/functional_execution_context/plugins/alerts"],
+      "@kbn/fec-alerts-test-plugin/*": ["x-pack/platform/test/functional_execution_context/plugins/alerts/*"],
       "@kbn/field-formats-example-plugin": ["examples/field_formats_example"],
       "@kbn/field-formats-example-plugin/*": ["examples/field_formats_example/*"],
       "@kbn/field-formats-plugin": ["src/platform/plugins/shared/field_formats"],
@@ -1010,8 +1010,8 @@
       "@kbn/fleet-plugin/*": ["x-pack/platform/plugins/shared/fleet/*"],
       "@kbn/flot-charts": ["src/platform/packages/shared/kbn-flot-charts"],
       "@kbn/flot-charts/*": ["src/platform/packages/shared/kbn-flot-charts/*"],
-      "@kbn/foo-plugin": ["x-pack/test/ui_capabilities/common/plugins/foo_plugin"],
-      "@kbn/foo-plugin/*": ["x-pack/test/ui_capabilities/common/plugins/foo_plugin/*"],
+      "@kbn/foo-plugin": ["x-pack/platform/test/ui_capabilities/common/plugins/foo_plugin"],
+      "@kbn/foo-plugin/*": ["x-pack/platform/test/ui_capabilities/common/plugins/foo_plugin/*"],
       "@kbn/ftr-apis-plugin": ["src/platform/plugins/private/ftr_apis"],
       "@kbn/ftr-apis-plugin/*": ["src/platform/plugins/private/ftr_apis/*"],
       "@kbn/ftr-common-functional-services": ["src/platform/packages/shared/kbn-ftr-common-functional-services"],
diff --git a/x-pack/test/disable_ems/README.md b/x-pack/platform/test/disable_ems/README.md
similarity index 100%
rename from x-pack/test/disable_ems/README.md
rename to x-pack/platform/test/disable_ems/README.md
diff --git a/x-pack/test/disable_ems/config.ts b/x-pack/platform/test/disable_ems/config.ts
similarity index 94%
rename from x-pack/test/disable_ems/config.ts
rename to x-pack/platform/test/disable_ems/config.ts
index e09bf1ed0dda2..9e7902288242a 100644
--- a/x-pack/test/disable_ems/config.ts
+++ b/x-pack/platform/test/disable_ems/config.ts
@@ -10,7 +10,7 @@ import { services, pageObjects } from './ftr_provider_context';
 
 export default async function ({ readConfigFile }: FtrConfigProviderContext) {
   const kibanaFunctionalConfig = await readConfigFile(
-    require.resolve('../functional/config.base.js')
+    require.resolve('../functional/config.base.ts')
   );
 
   return {
diff --git a/x-pack/test/disable_ems/ftr_provider_context.ts b/x-pack/platform/test/disable_ems/ftr_provider_context.ts
similarity index 100%
rename from x-pack/test/disable_ems/ftr_provider_context.ts
rename to x-pack/platform/test/disable_ems/ftr_provider_context.ts
diff --git a/x-pack/test/disable_ems/kbn_archive.json b/x-pack/platform/test/disable_ems/kbn_archive.json
similarity index 100%
rename from x-pack/test/disable_ems/kbn_archive.json
rename to x-pack/platform/test/disable_ems/kbn_archive.json
diff --git a/x-pack/test/disable_ems/tests/fonts.ts b/x-pack/platform/test/disable_ems/tests/fonts.ts
similarity index 100%
rename from x-pack/test/disable_ems/tests/fonts.ts
rename to x-pack/platform/test/disable_ems/tests/fonts.ts
diff --git a/x-pack/test/disable_ems/tests/index.ts b/x-pack/platform/test/disable_ems/tests/index.ts
similarity index 82%
rename from x-pack/test/disable_ems/tests/index.ts
rename to x-pack/platform/test/disable_ems/tests/index.ts
index f4a87f7b99da9..57757d510ef3e 100644
--- a/x-pack/test/disable_ems/tests/index.ts
+++ b/x-pack/platform/test/disable_ems/tests/index.ts
@@ -15,13 +15,13 @@ export default function ({ loadTestFile, getService }: FtrProviderContext) {
   describe('disable Elastic Maps Service', () => {
     before(async () => {
       await esArchiver.loadIfNeeded('x-pack/test/functional/es_archives/logstash_functional');
-      await kibanaServer.importExport.load('x-pack/test/disable_ems/kbn_archive.json');
+      await kibanaServer.importExport.load('x-pack/platform/test/disable_ems/kbn_archive.json');
       await browser.setWindowSize(1600, 1000);
     });
 
     after(async () => {
       await esArchiver.unload('x-pack/test/functional/es_archives/maps/data');
-      await kibanaServer.importExport.unload('x-pack/test/disable_ems/kbn_archive.json');
+      await kibanaServer.importExport.unload('x-pack/platform/test/disable_ems/kbn_archive.json');
     });
 
     loadTestFile(require.resolve('./fonts'));
diff --git a/x-pack/test/functional_execution_context/config.ts b/x-pack/platform/test/functional_execution_context/config.ts
similarity index 98%
rename from x-pack/test/functional_execution_context/config.ts
rename to x-pack/platform/test/functional_execution_context/config.ts
index dfc78f50d7ad3..23bd6a0e970cc 100644
--- a/x-pack/test/functional_execution_context/config.ts
+++ b/x-pack/platform/test/functional_execution_context/config.ts
@@ -10,7 +10,7 @@ import { FtrConfigProviderContext, getKibanaCliLoggers, findTestPluginPaths } fr
 import { logFilePath } from './test_utils';
 
 export default async function ({ readConfigFile }: FtrConfigProviderContext) {
-  const functionalConfig = await readConfigFile(require.resolve('../functional/config.base.js'));
+  const functionalConfig = await readConfigFile(require.resolve('../functional/config.base.ts'));
 
   const servers = {
     ...functionalConfig.get('servers'),
diff --git a/x-pack/test/functional_execution_context/ftr_provider_context.ts b/x-pack/platform/test/functional_execution_context/ftr_provider_context.ts
similarity index 100%
rename from x-pack/test/functional_execution_context/ftr_provider_context.ts
rename to x-pack/platform/test/functional_execution_context/ftr_provider_context.ts
diff --git a/x-pack/test/functional_execution_context/plugins/alerts/kibana.jsonc b/x-pack/platform/test/functional_execution_context/plugins/alerts/kibana.jsonc
similarity index 100%
rename from x-pack/test/functional_execution_context/plugins/alerts/kibana.jsonc
rename to x-pack/platform/test/functional_execution_context/plugins/alerts/kibana.jsonc
diff --git a/x-pack/test/functional_execution_context/plugins/alerts/package.json b/x-pack/platform/test/functional_execution_context/plugins/alerts/package.json
similarity index 59%
rename from x-pack/test/functional_execution_context/plugins/alerts/package.json
rename to x-pack/platform/test/functional_execution_context/plugins/alerts/package.json
index dd8cf39a1f99d..ea185a5e0a223 100644
--- a/x-pack/test/functional_execution_context/plugins/alerts/package.json
+++ b/x-pack/platform/test/functional_execution_context/plugins/alerts/package.json
@@ -6,8 +6,8 @@
     "templateVersion": "1.0.0"
   },
   "scripts": {
-    "kbn": "node ../../../../../../scripts/kbn.js",
-    "build": "rm -rf './target' && ../../../../../../node_modules/.bin/tsc"
+    "kbn": "node ../../../../../../../scripts/kbn.js",
+    "build": "rm -rf './target' && ../../../../../../../node_modules/.bin/tsc"
   },
   "license": "Elastic License 2.0"
 }
diff --git a/x-pack/test/functional_execution_context/plugins/alerts/server/ensure_apm_started.ts b/x-pack/platform/test/functional_execution_context/plugins/alerts/server/ensure_apm_started.ts
similarity index 100%
rename from x-pack/test/functional_execution_context/plugins/alerts/server/ensure_apm_started.ts
rename to x-pack/platform/test/functional_execution_context/plugins/alerts/server/ensure_apm_started.ts
diff --git a/x-pack/test/functional_execution_context/plugins/alerts/server/index.ts b/x-pack/platform/test/functional_execution_context/plugins/alerts/server/index.ts
similarity index 100%
rename from x-pack/test/functional_execution_context/plugins/alerts/server/index.ts
rename to x-pack/platform/test/functional_execution_context/plugins/alerts/server/index.ts
diff --git a/x-pack/test/functional_execution_context/plugins/alerts/server/plugin.ts b/x-pack/platform/test/functional_execution_context/plugins/alerts/server/plugin.ts
similarity index 100%
rename from x-pack/test/functional_execution_context/plugins/alerts/server/plugin.ts
rename to x-pack/platform/test/functional_execution_context/plugins/alerts/server/plugin.ts
diff --git a/x-pack/test/functional_execution_context/plugins/alerts/tsconfig.json b/x-pack/platform/test/functional_execution_context/plugins/alerts/tsconfig.json
similarity index 88%
rename from x-pack/test/functional_execution_context/plugins/alerts/tsconfig.json
rename to x-pack/platform/test/functional_execution_context/plugins/alerts/tsconfig.json
index b8e7b9c2d2e80..69f4d7d860d83 100644
--- a/x-pack/test/functional_execution_context/plugins/alerts/tsconfig.json
+++ b/x-pack/platform/test/functional_execution_context/plugins/alerts/tsconfig.json
@@ -1,5 +1,5 @@
 {
-  "extends": "../../../../../tsconfig.base.json",
+  "extends": "../../../../../../tsconfig.base.json",
   "compilerOptions": {
     "outDir": "target/types"
   },
diff --git a/x-pack/test/functional_execution_context/services.ts b/x-pack/platform/test/functional_execution_context/services.ts
similarity index 100%
rename from x-pack/test/functional_execution_context/services.ts
rename to x-pack/platform/test/functional_execution_context/services.ts
diff --git a/x-pack/test/functional_execution_context/test_utils.ts b/x-pack/platform/test/functional_execution_context/test_utils.ts
similarity index 100%
rename from x-pack/test/functional_execution_context/test_utils.ts
rename to x-pack/platform/test/functional_execution_context/test_utils.ts
diff --git a/x-pack/test/functional_execution_context/tests/browser.ts b/x-pack/platform/test/functional_execution_context/tests/browser.ts
similarity index 100%
rename from x-pack/test/functional_execution_context/tests/browser.ts
rename to x-pack/platform/test/functional_execution_context/tests/browser.ts
diff --git a/x-pack/test/functional_execution_context/tests/index.ts b/x-pack/platform/test/functional_execution_context/tests/index.ts
similarity index 100%
rename from x-pack/test/functional_execution_context/tests/index.ts
rename to x-pack/platform/test/functional_execution_context/tests/index.ts
diff --git a/x-pack/test/functional_execution_context/tests/log_correlation.ts b/x-pack/platform/test/functional_execution_context/tests/log_correlation.ts
similarity index 100%
rename from x-pack/test/functional_execution_context/tests/log_correlation.ts
rename to x-pack/platform/test/functional_execution_context/tests/log_correlation.ts
diff --git a/x-pack/test/functional_execution_context/tests/server.ts b/x-pack/platform/test/functional_execution_context/tests/server.ts
similarity index 100%
rename from x-pack/test/functional_execution_context/tests/server.ts
rename to x-pack/platform/test/functional_execution_context/tests/server.ts
diff --git a/x-pack/test/ui_capabilities/README.md b/x-pack/platform/test/ui_capabilities/README.md
similarity index 100%
rename from x-pack/test/ui_capabilities/README.md
rename to x-pack/platform/test/ui_capabilities/README.md
diff --git a/x-pack/test/ui_capabilities/common/config.ts b/x-pack/platform/test/ui_capabilities/common/config.ts
similarity index 93%
rename from x-pack/test/ui_capabilities/common/config.ts
rename to x-pack/platform/test/ui_capabilities/common/config.ts
index 41b16ac300d81..7e8128d4d730b 100644
--- a/x-pack/test/ui_capabilities/common/config.ts
+++ b/x-pack/platform/test/ui_capabilities/common/config.ts
@@ -21,7 +21,7 @@ export function createTestConfig(name: string, options: CreateTestConfigOptions)
 
   return async ({ readConfigFile }: FtrConfigProviderContext) => {
     const xPackFunctionalTestsConfig = await readConfigFile(
-      require.resolve('../../functional/config.base.js')
+      require.resolve('../../functional/config.base.ts')
     );
 
     return {
@@ -50,7 +50,7 @@ export function createTestConfig(name: string, options: CreateTestConfigOptions)
           `--plugin-path=${path.resolve(__dirname, 'plugins/foo_plugin')}`,
           `--plugin-path=${path.resolve(
             __dirname,
-            '../../security_api_integration/plugins/features_provider'
+            '../../../../test/security_api_integration/plugins/features_provider'
           )}`,
         ],
       },
diff --git a/x-pack/test/ui_capabilities/common/features.ts b/x-pack/platform/test/ui_capabilities/common/features.ts
similarity index 100%
rename from x-pack/test/ui_capabilities/common/features.ts
rename to x-pack/platform/test/ui_capabilities/common/features.ts
diff --git a/x-pack/test/ui_capabilities/common/ftr_provider_context.d.ts b/x-pack/platform/test/ui_capabilities/common/ftr_provider_context.d.ts
similarity index 100%
rename from x-pack/test/ui_capabilities/common/ftr_provider_context.d.ts
rename to x-pack/platform/test/ui_capabilities/common/ftr_provider_context.d.ts
diff --git a/x-pack/test/ui_capabilities/common/lib/assert_deeply_false.ts b/x-pack/platform/test/ui_capabilities/common/lib/assert_deeply_false.ts
similarity index 100%
rename from x-pack/test/ui_capabilities/common/lib/assert_deeply_false.ts
rename to x-pack/platform/test/ui_capabilities/common/lib/assert_deeply_false.ts
diff --git a/x-pack/test/ui_capabilities/common/lib/index.ts b/x-pack/platform/test/ui_capabilities/common/lib/index.ts
similarity index 100%
rename from x-pack/test/ui_capabilities/common/lib/index.ts
rename to x-pack/platform/test/ui_capabilities/common/lib/index.ts
diff --git a/x-pack/test/ui_capabilities/common/lib/unreachable_error.ts b/x-pack/platform/test/ui_capabilities/common/lib/unreachable_error.ts
similarity index 100%
rename from x-pack/test/ui_capabilities/common/lib/unreachable_error.ts
rename to x-pack/platform/test/ui_capabilities/common/lib/unreachable_error.ts
diff --git a/x-pack/test/ui_capabilities/common/nav_links_builder.ts b/x-pack/platform/test/ui_capabilities/common/nav_links_builder.ts
similarity index 100%
rename from x-pack/test/ui_capabilities/common/nav_links_builder.ts
rename to x-pack/platform/test/ui_capabilities/common/nav_links_builder.ts
diff --git a/x-pack/test/ui_capabilities/common/plugins/foo_plugin/kibana.jsonc b/x-pack/platform/test/ui_capabilities/common/plugins/foo_plugin/kibana.jsonc
similarity index 100%
rename from x-pack/test/ui_capabilities/common/plugins/foo_plugin/kibana.jsonc
rename to x-pack/platform/test/ui_capabilities/common/plugins/foo_plugin/kibana.jsonc
diff --git a/x-pack/test/ui_capabilities/common/plugins/foo_plugin/public/index.ts b/x-pack/platform/test/ui_capabilities/common/plugins/foo_plugin/public/index.ts
similarity index 100%
rename from x-pack/test/ui_capabilities/common/plugins/foo_plugin/public/index.ts
rename to x-pack/platform/test/ui_capabilities/common/plugins/foo_plugin/public/index.ts
diff --git a/x-pack/test/ui_capabilities/common/plugins/foo_plugin/server/index.ts b/x-pack/platform/test/ui_capabilities/common/plugins/foo_plugin/server/index.ts
similarity index 100%
rename from x-pack/test/ui_capabilities/common/plugins/foo_plugin/server/index.ts
rename to x-pack/platform/test/ui_capabilities/common/plugins/foo_plugin/server/index.ts
diff --git a/x-pack/test/ui_capabilities/common/plugins/foo_plugin/tsconfig.json b/x-pack/platform/test/ui_capabilities/common/plugins/foo_plugin/tsconfig.json
similarity index 83%
rename from x-pack/test/ui_capabilities/common/plugins/foo_plugin/tsconfig.json
rename to x-pack/platform/test/ui_capabilities/common/plugins/foo_plugin/tsconfig.json
index b308302331279..25a7d2c48fe0a 100644
--- a/x-pack/test/ui_capabilities/common/plugins/foo_plugin/tsconfig.json
+++ b/x-pack/platform/test/ui_capabilities/common/plugins/foo_plugin/tsconfig.json
@@ -1,5 +1,5 @@
 {
-  "extends": "../../../../../../tsconfig.base.json",
+  "extends": "../../../../../../../tsconfig.base.json",
   "compilerOptions": {
     "outDir": "target/types",
     "isolatedModules": true
diff --git a/x-pack/test/ui_capabilities/common/services/features.ts b/x-pack/platform/test/ui_capabilities/common/services/features.ts
similarity index 100%
rename from x-pack/test/ui_capabilities/common/services/features.ts
rename to x-pack/platform/test/ui_capabilities/common/services/features.ts
diff --git a/x-pack/test/ui_capabilities/common/services/index.ts b/x-pack/platform/test/ui_capabilities/common/services/index.ts
similarity index 86%
rename from x-pack/test/ui_capabilities/common/services/index.ts
rename to x-pack/platform/test/ui_capabilities/common/services/index.ts
index b0e4ecce8c215..8368487b26c65 100644
--- a/x-pack/test/ui_capabilities/common/services/index.ts
+++ b/x-pack/platform/test/ui_capabilities/common/services/index.ts
@@ -7,7 +7,7 @@
 
 import { FeaturesProvider } from './features';
 import { UICapabilitiesProvider } from './ui_capabilities';
-import { services as commonServices } from '../../../common/services';
+import { services as commonServices } from '../../../api_integration/services';
 
 export const services = {
   ...commonServices,
diff --git a/x-pack/test/ui_capabilities/common/services/ui_capabilities.ts b/x-pack/platform/test/ui_capabilities/common/services/ui_capabilities.ts
similarity index 100%
rename from x-pack/test/ui_capabilities/common/services/ui_capabilities.ts
rename to x-pack/platform/test/ui_capabilities/common/services/ui_capabilities.ts
diff --git a/x-pack/test/ui_capabilities/common/types.ts b/x-pack/platform/test/ui_capabilities/common/types.ts
similarity index 100%
rename from x-pack/test/ui_capabilities/common/types.ts
rename to x-pack/platform/test/ui_capabilities/common/types.ts
diff --git a/x-pack/test/ui_capabilities/security_and_spaces/config.ts b/x-pack/platform/test/ui_capabilities/security_and_spaces/config.ts
similarity index 100%
rename from x-pack/test/ui_capabilities/security_and_spaces/config.ts
rename to x-pack/platform/test/ui_capabilities/security_and_spaces/config.ts
diff --git a/x-pack/test/ui_capabilities/security_and_spaces/scenarios.ts b/x-pack/platform/test/ui_capabilities/security_and_spaces/scenarios.ts
similarity index 100%
rename from x-pack/test/ui_capabilities/security_and_spaces/scenarios.ts
rename to x-pack/platform/test/ui_capabilities/security_and_spaces/scenarios.ts
diff --git a/x-pack/test/ui_capabilities/security_and_spaces/tests/catalogue.ts b/x-pack/platform/test/ui_capabilities/security_and_spaces/tests/catalogue.ts
similarity index 100%
rename from x-pack/test/ui_capabilities/security_and_spaces/tests/catalogue.ts
rename to x-pack/platform/test/ui_capabilities/security_and_spaces/tests/catalogue.ts
diff --git a/x-pack/test/ui_capabilities/security_and_spaces/tests/foo.ts b/x-pack/platform/test/ui_capabilities/security_and_spaces/tests/foo.ts
similarity index 100%
rename from x-pack/test/ui_capabilities/security_and_spaces/tests/foo.ts
rename to x-pack/platform/test/ui_capabilities/security_and_spaces/tests/foo.ts
diff --git a/x-pack/test/ui_capabilities/security_and_spaces/tests/index.ts b/x-pack/platform/test/ui_capabilities/security_and_spaces/tests/index.ts
similarity index 100%
rename from x-pack/test/ui_capabilities/security_and_spaces/tests/index.ts
rename to x-pack/platform/test/ui_capabilities/security_and_spaces/tests/index.ts
diff --git a/x-pack/test/ui_capabilities/security_and_spaces/tests/nav_links.ts b/x-pack/platform/test/ui_capabilities/security_and_spaces/tests/nav_links.ts
similarity index 100%
rename from x-pack/test/ui_capabilities/security_and_spaces/tests/nav_links.ts
rename to x-pack/platform/test/ui_capabilities/security_and_spaces/tests/nav_links.ts
diff --git a/x-pack/test/ui_capabilities/security_and_spaces/tests/roles.ts b/x-pack/platform/test/ui_capabilities/security_and_spaces/tests/roles.ts
similarity index 100%
rename from x-pack/test/ui_capabilities/security_and_spaces/tests/roles.ts
rename to x-pack/platform/test/ui_capabilities/security_and_spaces/tests/roles.ts
diff --git a/x-pack/test/ui_capabilities/spaces_only/config.ts b/x-pack/platform/test/ui_capabilities/spaces_only/config.ts
similarity index 100%
rename from x-pack/test/ui_capabilities/spaces_only/config.ts
rename to x-pack/platform/test/ui_capabilities/spaces_only/config.ts
diff --git a/x-pack/test/ui_capabilities/spaces_only/scenarios.ts b/x-pack/platform/test/ui_capabilities/spaces_only/scenarios.ts
similarity index 100%
rename from x-pack/test/ui_capabilities/spaces_only/scenarios.ts
rename to x-pack/platform/test/ui_capabilities/spaces_only/scenarios.ts
diff --git a/x-pack/test/ui_capabilities/spaces_only/tests/catalogue.ts b/x-pack/platform/test/ui_capabilities/spaces_only/tests/catalogue.ts
similarity index 100%
rename from x-pack/test/ui_capabilities/spaces_only/tests/catalogue.ts
rename to x-pack/platform/test/ui_capabilities/spaces_only/tests/catalogue.ts
diff --git a/x-pack/test/ui_capabilities/spaces_only/tests/foo.ts b/x-pack/platform/test/ui_capabilities/spaces_only/tests/foo.ts
similarity index 100%
rename from x-pack/test/ui_capabilities/spaces_only/tests/foo.ts
rename to x-pack/platform/test/ui_capabilities/spaces_only/tests/foo.ts
diff --git a/x-pack/test/ui_capabilities/spaces_only/tests/index.ts b/x-pack/platform/test/ui_capabilities/spaces_only/tests/index.ts
similarity index 100%
rename from x-pack/test/ui_capabilities/spaces_only/tests/index.ts
rename to x-pack/platform/test/ui_capabilities/spaces_only/tests/index.ts
diff --git a/x-pack/test/ui_capabilities/spaces_only/tests/nav_links.ts b/x-pack/platform/test/ui_capabilities/spaces_only/tests/nav_links.ts
similarity index 100%
rename from x-pack/test/ui_capabilities/spaces_only/tests/nav_links.ts
rename to x-pack/platform/test/ui_capabilities/spaces_only/tests/nav_links.ts
diff --git a/yarn.lock b/yarn.lock
index 4684968768500..367909a3e5672 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5651,7 +5651,7 @@
   version "0.0.0"
   uid ""
 
-"@kbn/fec-alerts-test-plugin@link:x-pack/test/functional_execution_context/plugins/alerts":
+"@kbn/fec-alerts-test-plugin@link:x-pack/platform/test/functional_execution_context/plugins/alerts":
   version "0.0.0"
   uid ""
 
@@ -5711,7 +5711,7 @@
   version "0.0.0"
   uid ""
 
-"@kbn/foo-plugin@link:x-pack/test/ui_capabilities/common/plugins/foo_plugin":
+"@kbn/foo-plugin@link:x-pack/platform/test/ui_capabilities/common/plugins/foo_plugin":
   version "0.0.0"
   uid ""