[Chore] Run only relevant tests

.buildkite/pipelines/pipeline_pull_request_test.yml

@@ -77,3 +77,17 @@ steps:
       - "cypress/videos/**/*.mp4"
     timeout_in_minutes: 45
     retry: *retry_policy
+
+  - command: .buildkite/scripts/pipelines/pipeline_test.sh
+    label: ":typescript: Workspace linting"
+    env:
+      TEST_TYPE: 'pkg:lint'
+    if: build.branch != "main"
+    retry: *retry_policy
+
+  - command: .buildkite/scripts/pipelines/pipeline_test.sh
+    label: ":jest: Workspace unit tests"
+    env:
+      TEST_TYPE: 'pkg:unit'
+    if: build.branch != "main"
+    retry: *retry_policy

.buildkite/pull-requests.json

@@ -11,7 +11,12 @@
       "trigger_comment_regex": "^(?:(?:buildkite\\W+)?(?:build|test)\\W+(?:this|it))",
       "always_trigger_comment_regex": "^(?:(?:buildkite\\W+)?(?:build|test)\\W+(?:this|it))",
       "set_commit_status": true,
-      "skip_ci_on_only_changed": ["^.github/", "^wiki/"]
+      "skip_ci_on_only_changed": [
+        "^\\.github/",
+        "^wiki/",
+        "^packages/website/",
+        "^packages/docusaurus-"
+      ]
     },
     {
       "enabled": true,

.buildkite/scripts/pipelines/pipeline_test.sh

@@ -7,6 +7,40 @@ source .buildkite/scripts/common/utils.sh
 
 buildkite_analytics_vault="secret/ci/elastic-eui/buildkite-test-analytics"
 
+# Paths that don't affect the EUI test suite.
+# When a PR's diff is contained entirely within these paths,
+# the heavy EUI jobs (lint, unit:*, cypress:*) exit early below.
+# The lightweight per-package jobs always run.
+NON_EUI_PATHS_REGEXP='^(\.github/|wiki/|packages/(website|docusaurus-[^/]+|eslint-plugin)/)'
+
+is_eui_test_type() {
+  case "$1" in
+    lint|unit:ts|unit:tsx|unit:tsx:17|cypress:17|cypress:18|cypress:a11y) return 0 ;;
+    *) return 1 ;;
+  esac
+}
+
+should_skip_eui_tests() {
+  local base_branch="${BUILDKITE_PULL_REQUEST_BASE_BRANCH:-main}"
+  git fetch --no-tags --quiet origin "$base_branch" 2>/dev/null || return 1
+
+  local merge_base
+  merge_base=$(git merge-base "origin/$base_branch" HEAD 2>/dev/null) || return 1
+
+  local changed
+  changed=$(git diff --name-only "$merge_base" HEAD 2>/dev/null) || return 1
+
+  [[ -n "$changed" ]] || return 1
+  echo "$changed" | grep -qvE "$NON_EUI_PATHS_REGEXP" && return 1
+
+  return 0
+}
+
+if is_eui_test_type "$TEST_TYPE" && should_skip_eui_tests; then
+  echo "[SKIP]: Only non-EUI paths changed; skipping ${TEST_TYPE}"
+  exit 0
+fi
+
 DOCKER_OPTIONS=(
   -i --rm
   --env GIT_COMMITTER_NAME=test
@@ -67,6 +101,24 @@ case $TEST_TYPE in
     COMMAND="/opt/yarn*/bin/yarn --cwd packages/eui && yarn --cwd packages/eui build:workspaces && yarn --cwd packages/eui cypress install && yarn --cwd packages/eui run test-cypress-a11y --node-options=--max_old_space_size=2048"
     ;;
 
+  pkg:lint)
+    echo "[TASK]: Linting all workspaces except @elastic/eui"
+    COMMAND="/opt/yarn*/bin/yarn && yarn workspace @elastic/eui build:workspaces && \
+      yarn workspaces foreach -A -pi \
+        --exclude '@elastic/eui' \
+        --exclude '@elastic/eui-monorepo' \
+        run lint"
+    ;;
+
+  pkg:unit)
+    echo "[TASK]: Running unit tests for all workspaces except @elastic/eui"
+    COMMAND="/opt/yarn*/bin/yarn && yarn workspace @elastic/eui build:workspaces && \
+      yarn workspaces foreach -A -pi \
+        --exclude '@elastic/eui' \
+        --exclude '@elastic/eui-monorepo' \
+        run test-unit"
+    ;;
+
   *)
     echo "[ERROR]: Unknown task"
     echo "Exit code: 1"

packages/test-helpers/package.json

@@ -9,8 +9,8 @@
   "private": true,
   "scripts": {
     "lint": "tsc --noEmit",
-    "test": "yarn lint && yarn test-unit",
-    "test-unit": "playwright test",
+    "test": "yarn lint && yarn test-e2e",
+    "test-e2e": "playwright test",
     "show-report": "playwright show-report"
   },
   "peerDependencies": {