test: gRPC core client init integration test

- Copied the env-variable server from Theia and made it possible to
customize it for the tests. Each test has its own `data` folder.
 - Relaxed the primary package and library index error detection.
This should make the init error detection locale independent.
 - Kill the daemon process subtree when stopping the daemon.

Signed-off-by: Akos Kitta <a.kitta@arduino.cc>

arduino-ide-extension/src/node/arduino-ide-backend-module.ts

@@ -41,7 +41,10 @@ import {
 } from '../common/protocol/arduino-daemon';
 import { ConfigServiceImpl } from './config-service-impl';
 import { EnvVariablesServer as TheiaEnvVariablesServer } from '@theia/core/lib/common/env-variables';
-import { EnvVariablesServer } from './theia/env-variables/env-variables-server';
+import {
+  ConfigDirUriProvider,
+  EnvVariablesServer,
+} from './theia/env-variables/env-variables-server';
 import { NodeFileSystemExt } from './node-filesystem-ext';
 import {
   FileSystemExt,
@@ -236,6 +239,7 @@ export default new ContainerModule((bind, unbind, isBound, rebind) => {
   bind(DefaultWorkspaceServer).toSelf().inSingletonScope();
   rebind(TheiaWorkspaceServer).toService(DefaultWorkspaceServer);
 
+  bind(ConfigDirUriProvider).toSelf().inSingletonScope();
   bind(EnvVariablesServer).toSelf().inSingletonScope();
   rebind(TheiaEnvVariablesServer).toService(EnvVariablesServer);