developerTeamTest.js

describe(`Quickbird Studios Team`, function() {
    it(`should be an awesome team`, function() {
        const quickBirdTeamMembers = fetchTeamMembers();
      
        const awesomeTeamMembers = quickBirdTeamMembers.filter(teamMember =>
            teamMember.isPassionate &&
            teamMember.isFriendly &&
            teamMember.isConstantlyImproving
        );
      
        assert.equal(awesomeTeamMembers.length, quickBirdTeamMembers.length);
    });
});

I think fetchTeamMembers is async, we should wait for it to resolve to continue the test.

describe(`Quickbird Studios Team`, function() {
    it(`should be an awesome team`, async function() {
        const quickBirdTeamMembers = await fetchTeamMembers();
      
        const awesomeTeamMembers = quickBirdTeamMembers.filter(teamMember =>
            teamMember.isPassionate &&
            teamMember.isFriendly &&
            teamMember.isConstantlyImproving
        );
      
        assert.equal(awesomeTeamMembers.length, quickBirdTeamMembers.length);
    });
});

Great!