ci: add RACE parameter to fix conditional (#648)

We are checking if `JOB_NAME` contains a token `race` to set the default
value for `RACE` parameter which decides which tests run.

Signed-off-by: Jakub Sokołowski <jakub@status.im>

ci/Jenkinsfile.tests

@@ -18,6 +18,16 @@ pipeline {
     ))
   }
 
+  /* WARNING: Defining parameters here with the ?: trick causes them to remember last value. */
+  parameters {
+    booleanParam(
+      name: 'RACE',
+      description: 'Run tests with check for race condition.',
+      defaultValue: getRaceDefault()
+    )
+  }
+
+
   environment {
     TARGET  = 'tests'
     REPO    = "${env.WORKSPACE}/src/github.com/waku-org/go-waku"
@@ -40,7 +50,7 @@ pipeline {
 
     stage('Test') {
       steps { script { dir(env.REPO) {
-        if (env.JOB_BASE_NAME == "race") {
+        if (params.RACE) {
           nix.develop('make test-with-race', pure: false)
         }else {
           nix.develop('make test-ci', pure: false)
@@ -64,7 +74,7 @@ pipeline {
         GANACHE_NETWORK_RPC_URL = "ws://localhost:${env.GANACHE_RPC_PORT}"
       }
       steps { script { dir(env.REPO) {
-        if (env.JOB_BASE_NAME == "race") {
+        if (params.RACE) {
           nix.develop('make test-onchain-with-race', pure: false)
         }else {
           nix.develop('make test-onchain', pure: false)
@@ -86,3 +96,7 @@ pipeline {
     } }
   }
 }
+
+def Boolean getRaceDefault() {
+  return env.JOB_NAME.split('/').contains('race')
+}