16     assert_eq!(bitmap.first_index(), None);  in test_empty_bitmap_32()
29     assert_eq!(bitmap.first_index(), Some(0));  in test_empty_bitmap_32()
46     assert_eq!(bitmap.first_index(), None);  in test_empty_bitmap_64()
59     assert_eq!(bitmap.first_index(), Some(0));  in test_empty_bitmap_64()
78     assert_eq!(bitmap.first_index(), Some(0));  in test_static_bitmap_32_first_1()
97     assert_eq!(bitmap.first_index(), Some(1));  in test_static_bitmap_32_first_1()
119     assert_eq!(bitmap.first_index(), Some(15));  in test_static_bitmap_32_middle_1()
139     assert_eq!(bitmap.first_index(), Some(0));  in test_static_bitmap_32_middle_1()
161     assert_eq!(bitmap.first_index(), Some(31));  in test_static_bitmap_32_last_1()
181     assert_eq!(bitmap.first_index(), Some(0));  in test_static_bitmap_32_last_1()
203     assert_eq!(bitmap.first_index(), Some(0));  in test_static_bitmap_64_first_1()
222     assert_eq!(bitmap.first_index(), Some(1));  in test_static_bitmap_64_first_1()
244     assert_eq!(bitmap.first_index(), Some(15));  in test_static_bitmap_64_middle_1()
264     assert_eq!(bitmap.first_index(), Some(0));  in test_static_bitmap_64_middle_1()
286     assert_eq!(bitmap.first_index(), Some(63));  in test_static_bitmap_64_last_1()
306     assert_eq!(bitmap.first_index(), Some(0));  in test_static_bitmap_64_last_1()
330     assert_eq!(bitmap.first_index(), Some(0));  in test_static_bitmap_64_two_1_first()
346     assert_eq!(bitmap.first_index(), Some(1));  in test_static_bitmap_64_two_1_first()
371     assert_eq!(bitmap.first_index(), Some(15));  in test_static_bitmap_64_two_1_middle()
388     assert_eq!(bitmap.first_index(), Some(0));  in test_static_bitmap_64_two_1_middle()
414     assert_eq!(bitmap.first_index(), Some(0));  in test_static_bitmap_128_two_1_seperate_first()
431     assert_eq!(bitmap.first_index(), Some(1));  in test_static_bitmap_128_two_1_seperate_first()
455     assert_eq!(bitmap.first_index(), Some(63));  in test_static_bitmap_128_two_1_nearby_middle()
477     assert_eq!(bitmap.first_index(), Some(0));  in test_static_bitmap_128_two_1_nearby_middle()
502     assert_eq!(bitmap.first_index(), Some(0));  in test_static_bitmap_full_32()
519     assert_eq!(bitmap.first_index(), None);  in test_static_bitmap_full_32()
540     assert_eq!(bitmap.first_index(), Some(0));  in test_static_bitmap_full_64()
557     assert_eq!(bitmap.first_index(), None);  in test_static_bitmap_full_64()
578     assert_eq!(bitmap.first_index(), Some(0));  in test_static_bitmap_full_100()
595     assert_eq!(bitmap.first_index(), None);  in test_static_bitmap_full_100()
616     assert_eq!(bitmap.first_index(), Some(0));  in test_static_bitmap_full_128()
633     assert_eq!(bitmap.first_index(), None);  in test_static_bitmap_full_128()