test: add test regenerating function documentation

Author: line-o

src/test/cypress/integration/regenerate_spec.cy.js

@@ -0,0 +1,18 @@
+context('Regenerating function documentation', () => {
+  it('succeeds', () => {
+      cy.timeout(10000); // generation needs some time
+      cy.request({
+        url: 'http://127.0.0.1:8080/exist/apps/fundocs/regenerate',
+        auth: {
+          user: 'admin', 
+          password: ''
+        }
+      })
+        .then((response) => {
+          expect(response).to.have.property('status')
+          expect(response.status).to.equal(200)
+          expect(response.body).to.have.property('status')
+          expect(response.body.status).to.equal('ok')
+        })
+  })
+})