test(NODE-7137): add n8n to the AI testing pipeline

.evergreen/config.yml

@@ -287,6 +287,12 @@ tasks:
         params:
           file: src/langchain-js/langchainjs/libs/langchain-mongodb/results.xml
 
+  - name: test-n8n-js-local
+    tags: [local]
+    commands:
+      - func: "fetch repo"
+      - func: "execute tests"
+
   - name: test-langchain-js-remote
     tags: [remote]
     commands:
@@ -477,6 +483,16 @@ buildvariants:
       - name: test-langchain-js-local
       - name: test-langchain-js-remote
 
+  - name: test-n8n-javascript-ubuntu
+    display_name: n8n Ubuntu2204
+    tags: [javascript]
+    expansions:
+      DIR: n8n-js
+    run_on:
+      - ubuntu2204-small
+    tasks:
+      - name: test-n8n-js-local
+
   - name: test-mem0-python-rhel
     display_name: mem0 RHEL Python
     tags: [python]

n8n-js/config.env

@@ -0,0 +1,2 @@
+REPO_NAME=n8n
+REPO_ORG=n8n-io

n8n-js/run.sh

@@ -0,0 +1,29 @@
+#! /bin/bash
+
+set -o errexit
+set -o xtrace
+
+mkdir npm_global_dir
+WORKING_DIR=$(pwd)
+export NPM_CONFIG_PREFIX=$WORKING_DIR/npm_global_dir
+export PATH="$NPM_CONFIG_PREFIX/bin:$PATH"
+
+npm i -g pnpm
+
+# use node20
+export PATH="/opt/devtools/node22/bin:/opt/dev/tools/bin:$PATH"
+
+pnpm --version
+
+pnpm install
+pnpm build
+
+# first, run the crud node tests
+cd packages/nodes-base/nodes/MongoDb
+pnpm test "$(pwd)"
+cd -
+
+# then, run the vector store tests
+cd packages/@n8n/nodes-langchain/nodes/vector_store/VectorStoreMongoDBAtlas/
+pnpm test "$(pwd)"
+cd -