Merge two based yaml with indentation in groovy - jenkins

Question

I am trying to merge two yamls in jenkins file (.Jenkinsfile)
def runConf = """
fail_fast: false
tests:
- ABC:
"""
print(runConf)
def defaultRunConfig = """
test:
- ABC.json
- DEF.json
Seconds: 60
Type: dynamic
"""
def runConfigObj
runConfigObj = readYaml([text:defaultRunConfig])
String time = defaultRunConfig.Seconds.toString()
echo ("Duration for run: " +time)
def runConfigBase
runConfigBase = readYaml([text:runConf])
Map<Object, Object> runConfiguration = [:]
runConfiguration.putAll(runConfigBase)
print(runConfiguration)
for (tests in runConfigObj.test) {
print(runConfigObj.test)
runConfiguration.put(runConfigObj.test)
}
runConfiguration['Seconds'] = runConfigObj.Seconds.toString()
runConfiguration['Type'] = runConfigObj.Type
Expectation is to get something like:
fail_fast: false
tests:
- ABC:
test:
- ABC.json
- DEF.json
Seconds: 60
Type: dynamic
But I am getting below Error:
hudson.remoting.ProxyException: groovy.lang.MissingMethodException: No signature of method: java.util.LinkedHashMap.put() is applicable for argument types: (java.util.ArrayList) values:
Tried looking into options like MAP in groovy but not able to resolve the issue
How to avoid such an error? I am new to groovy, any help is much appreciated

Answer 1

So you want to add an array of "tests" as values to the key test into a map object of runConfiguration, then it should be something like this:
runConfiguration['test']=[]
for (test in runConfigObj) {
runConfiguration['test'].add(test)
}