1const cmp = @import("cmp.zig");
2const testing = @import("std").testing;
3
4fn test__ucmpsi2(a: u32, b: u32, expected: i32) !void {
5 const result = cmp.__ucmpsi2(a, b);
6 try testing.expectEqual(expected, result);
7}
8
9test "ucmpsi2" {
10 // minInt == 0
11 // maxInt == 4294967295
12 // minInt/2 == 0
13 // maxInt/2 == 2147483647
14 // 1. equality 0, 1 maxInt/2, maxInt-1, maxInt
15 try test__ucmpsi2(0, 0, 1);
16 try test__ucmpsi2(1, 1, 1);
17 try test__ucmpsi2(2147483647, 2147483647, 1);
18 try test__ucmpsi2(4294967294, 4294967294, 1);
19 try test__ucmpsi2(4294967295, 4294967295, 1);
20 // 2. cmp minInt, {0, 1, maxInt/2, maxInt-1, maxInt}
21 try test__ucmpsi2(0, 1, 0);
22 try test__ucmpsi2(0, 2147483647, 0);
23 try test__ucmpsi2(0, 4294967294, 0);
24 try test__ucmpsi2(0, 4294967295, 0);
25 // 3. cmp minInt+1, {minInt, 0, maxInt/2, maxInt-1, maxInt}
26 try test__ucmpsi2(1, 0, 2);
27 try test__ucmpsi2(1, 2147483647, 0);
28 try test__ucmpsi2(1, 4294967294, 0);
29 try test__ucmpsi2(1, 4294967295, 0);
30 // 4. cmp minInt/2==minInt, {}
31 // 5. cmp -1 {}
32 // 6. cmp 0==minInt,{}
33 // 7. cmp 1==minInt+1, {}
34 // 8. cmp maxInt/2, {0, maxInt-1, maxInt}
35 try test__ucmpsi2(2147483647, 0, 2);
36 try test__ucmpsi2(2147483647, 1, 2);
37 try test__ucmpsi2(2147483647, 4294967294, 0);
38 try test__ucmpsi2(2147483647, 4294967295, 0);
39 // 9. cmp maxInt-1, {0,1,2, maxInt/2, maxInt}
40 try test__ucmpsi2(4294967294, 0, 2);
41 try test__ucmpsi2(4294967294, 1, 2);
42 try test__ucmpsi2(4294967294, 2147483647, 2);
43 try test__ucmpsi2(4294967294, 4294967295, 0);
44 // 10.cmp maxInt, {0,1,2, maxInt/2, maxInt-1}
45 try test__ucmpsi2(4294967295, 0, 2);
46 try test__ucmpsi2(4294967295, 1, 2);
47 try test__ucmpsi2(4294967295, 2147483647, 2);
48 try test__ucmpsi2(4294967295, 4294967294, 2);
49}