Move test instructions from the packages README.md to the root README.md

The package READEME.md is used on npm registry to give users information
about the library. Instructions for developers that develop the
theia-trace-extensions need to go in the root README.md

Update test script in the root package.json to allow forwarding
parameters to the packages test script execution. With this the test
can be executed from the root directory.

Signed-off-by: Bernd Hufmann <Bernd.Hufmann@ericsson.com>

README.md

@@ -118,6 +118,28 @@ It's possible to package the repo's example application with `electron-builder`.
 
   The configured Linux packaging(s) will be generated in folder `examples/electron/dist`
 
+## Tests
+
+To run tests once, at the root of the project do:
+
+```shell
+yarn test --verbose
+```
+
+To keep tests running do:
+
+```shell
+yarn test --verbose --watch
+```
+
+### Test coverage
+
+The following command prints a coverage report to the terminal. As of now it covers all typescript files of the project, including those that are not supposed to have tests.
+
+```shell
+yarn test --coverage --collectCoverageFrom='src/**/*.ts'
+```
+
 ## Using the trace extension
 This section describes how to operate the Theia trace extension to view and analyze traces. The UI, view interactions, and UX are prelimiary and subject to revisions in the future.
 

package.json

@@ -19,7 +19,7 @@
     "start-all:browser": "yarn start:server & yarn start:browser",
     "start-all:electron": "yarn start:server & yarn start:electron",
     "lint": "lerna run lint",
-    "test": "lerna run test",
+    "test": "lerna run test --",
     "publish:latest": "lerna publish --registry=https://registry.npmjs.org/ --exact --no-git-tag-version --no-push",
     "publish:next": "lerna publish --registry=https://registry.npmjs.org/ --exact --canary minor --preid=next.$(git rev-parse --short HEAD) --dist-tag=next --no-git-tag-version --no-push --yes"
   },

packages/react-components/README.md

@@ -7,25 +7,3 @@ The Trace Viewer react-components package contains views and utilities for visua
 - [Theia Trace Viewer Extension](https://github.com/theia-ide/theia-trace-extension)
 - [Trace Server Protocol](https://github.com/theia-ide/trace-server-protocol)
 - [Reference Trace Server - Download (Eclipse Trace Compass)](https://download.eclipse.org/tracecompass.incubator/trace-server/rcp/)
-
-## Tests
-
-To run tests once, at the root of the project do:
-
-```shell
-yarn test --verbose
-```
-
-To keep tests running do:
-
-```shell
-yarn test --verbose --watch
-```
-
-### Test coverage
-
-The following command prints a coverage report to the terminal. As of now it covers all typescript files of the project, including those that are not supposed to have tests.
-
-```shell
-yarn test --coverage --collectCoverageFrom='src/**/*.ts'
-```