How to run a TestCase located in another project

def prj = testRunner.testCase.testSuite.project.workspace.getProjectByName("ProjectName")

2.tCase = prj.testSuites['TestSuiteName'].testCases['TestCaseName']

3.tStep = tCase.getTestStepByName("TestStepName")

4.def runner = tStep.run(testRunner, context)