What is the test for a cause of action for wrongful discharge under the LMRA?

Applying these principles, in Paige v. Henry J. Kaiser Co., 826 F.2d 857, 863 (9th Cir.1987), cert. denied, 486 U.S. 1054 (1988), we found that an employee's cause of action for wrongful discharge, stemming from his discharge for raising complaints about workplace safety, was not preempted by the LMRA. The court reasoned: "State health and safety standards benefit all employees as individual workers, not because they are or are not members of a collective bargaining association. And California's interest in providing this private cause of action is the enforcement of the underlying statute or regulation, not to regulate the employment relationship." Id.