setUp() not being called in JUnit

For some reason, the setUp() method of my test class is not being called before my test method.

import static org.junit.jupiter.api.Assertions.*;
import org.junit.After;
import org.junit.Before;
import org.junit.jupiter.api.Test;

class BlockchainAuctionTest {
    private BlockchainAuction auction;

@Before
public void setUp() {
    auction = new BlockchainAuction();
    System.out.println("setUp");
}

@After
public void tearDown() {
    System.out.println("tearDown");
}

@Test
void testOneBid() {
    Bid bid = new Bid("Bitcoin", "Devon", 1.0);
    assertTrue(auction.recordNewBid(bid), "first bid should be added without error");
}
}

Specifically, I am getting a null pointer exception on the line that says

assertTrue(auction.recordNewBid(bid), "first bid should be added without error");

because auction has not been initialized. I am using Eclipse.