chore: update README

README.md

@@ -16,8 +16,8 @@
     - [Testing](#testing)
     - [Running unit tests](#running-unit-tests)
     - [Running E2E tests](#running-e2e-tests)
-      - [NodeJS](#nodejs)
-      - [Cypress](#cypress)
+      - [NodeJS](#execute-the-e2e-tests)
+      - [Cypress](#execute-the-cypress-tests)
     - [Contributing](#contributing)
   - [Controlling interactions and costs](#controlling-interactions-and-costs)
   - [See also](#see-also)
@@ -114,27 +114,69 @@ yarn test:unit
 ### Running E2E tests
 
 Both test cases for the NodeJS environment and the browser (cypress) require preparation of a test environment of the
-Golem Network with Providers and all the necessary infrastructure. [Goth](https://github.com/golemfactory/goth)
-framework is used for this purpose.
+Golem Network with Providers and all the necessary infrastructure.
 
-To enable E2E testing, you need to ensure that `python -m goth` is executable. Therefore, you must first
-install [Goth](https://github.com/golemfactory/goth) according to the instructions described in the readme of the
-project.
+#### Prerequisites
 
-#### NodeJS
+1. Ensure you have `docker` and `docker-compose` installed in your system.
+2. Your Linux environment should have nested virtualization enabled.
 
-```bash
-npm run test:e2e
-# or
-yarn test:e2e
+#### Test Environment Preparation
+
+Follow these steps to prepare your test environment:
+
+##### Build Docker Containers
+
+First, build the Docker containers using the `docker-compose.yml` file located under `tests/e2e`.
+
+Execute this command to build the Docker containers:
+
+    docker compose -f tests/e2e/docker-compose.yml build
+
+##### Start Docker Containers
+
+Then, launch the Docker containers you've just built using the same `docker-compose.yml` file.
+
+Execute this command to start the Docker containers:
+
+    docker compose -f tests/e2e/docker-compose.yml down && docker compose -f tests/e2e/docker-compose.yml up -d
+
+##### Fund the Requestor
+
+The next step is to fund the requestor.
+
+    docker exec -t e2e-requestor-1 /bin/sh -c "/golem-js/tests/e2e/fund-requestor.sh"
+
+##### Install and Build the SDK
+
+Finally, install and build the golem-js SDK in the Docker container
+
+Run this chain of commands to install and build the SDK and prepare cypress.
+
+```docker
+docker exec -t e2e-requestor-1 /bin/sh -c "cd /golem-js && npm i && npm run build && ./node_modules/.bin/cypress install"
 ```
 
-#### Cypress
+#### Execute the E2E Tests
 
-```bash
-npm run test:cypress
-# or
-yarn test:cypress
+With your test environment set up, you can now initiate the E2E tests. Run the following command to start:
+
+```docker
+docker exec -t e2e-requestor-1 /bin/sh -c "cd /golem-js && npm run test:e2e"
+```
+
+#### Execute the cypress Tests
+
+First make sure that the webserver that's used for testing is running, by running the command
+
+```docker
+docker exec -t -d e2e-requestor-1 /bin/sh -c "cd /golem-js/examples/web && node app.mjs"
+```
+
+Now you're ready to start the cypress tests by running the command
+
+```docker
+docker exec -t e2e-requestor-1 /bin/sh -c "cd /golem-js && npm run test:cypress -- --browser chromium"
 ```
 
 ### Contributing