feat: add support for files and math for messages (#5)

cypress/plugins/index.js

@@ -1,3 +1,5 @@
+import path from 'node:path'
+
 import { getLocal } from 'mockttp'
 
 import { API_DEFAULT_PORT } from '../../tools/api'
@@ -7,6 +9,13 @@ import { API_DEFAULT_PORT } from '../../tools/api'
 /** @type {import('mockttp').Mockttp | null}  */
 let server = null
 
+const UPLOADS_FIXTURES_DIRECTORY = path.join(
+  process.cwd(),
+  'cypress',
+  'fixtures',
+  'uploads'
+)
+
 /**
  * @type {Cypress.PluginConfig}
  */
@@ -21,10 +30,18 @@ module.exports = (on, config) => {
       })
       await server.start(API_DEFAULT_PORT)
       for (const handler of handlers) {
-        await server[handler.method.toLowerCase()](handler.url).thenJson(
-          handler.response.statusCode,
-          handler.response.body
-        )
+        const { isFile = false } = handler.response
+        if (isFile) {
+          await server[handler.method.toLowerCase()](handler.url).thenFromFile(
+            handler.response.statusCode,
+            path.join(UPLOADS_FIXTURES_DIRECTORY, ...handler.response.body)
+          )
+        } else {
+          await server[handler.method.toLowerCase()](handler.url).thenJson(
+            handler.response.statusCode,
+            handler.response.body
+          )
+        }
       }
       return null
     },