Add file to test ESLint check and annotations

ESLINT-TEST.js

@@ -0,0 +1,43 @@
+const core = require('@actions/core');
+
+const sdk = require('matrix-js-sdk');
+
+try {
+  const homeserver = core.getInput('homeserver');
+  const channel = core.getInput('channel');
+  const token = core.getInput('token');
+  const message = core.getInput('message');
+  const messagetype = core.getInput('messagetype');
+
+  // Debug output
+  core.info(`homeserver: ${homeserver}`);
+  core.info(`channel: ${channel}`);
+  core.info(`token: ${token}`);
+  core.info(`message: ${message}`);
+  core.info(`messagetype: ${messagetype}`);
+
+  // Create client object
+  const client = sdk.createClient({
+    baseUrl: "https://matrix.org",
+    accessToken: token
+  });
+
+  // Join channel (if we are already in the channel this does nothing)
+  client.joinRoom(channel).then(() => {
+    console.log('Joined channel');
+  });
+
+  // Send message
+  const content = {
+    msgtype: messagetype,
+    body: message,
+  };
+
+  client.sendEvent(channel, 'm.room.message', content, '').then(() => {
+  // message sent successfully
+  }).catch((err) => {
+    console.log(err);
+  });
+} catch (error) {
+  core.setFailed(error.message);
+}