nextToken()).toBe <span class="hljs-string">'a'</span>
    expect(nextToken()).toBe <span class="hljs-string">'+'</span>
    expect(nextToken()).toBe <span class="hljs-string">'boom.aaa'</span>
    expect(nextToken()).toBe <span class="hljs-string">'+'</span>
    expect(nextToken()).toBe <span class="hljs-string">'c'</span>
    expect(nextToken()).toBe <span class="hljs-string">'-'</span>
    expect(nextToken()).toBe <span class="hljs-string">'d'</span>
    expect(nextToken()).toBe <span class="hljs-