negvsi2_test.zig (1038B) - Raw
1 const negv = @import("negv.zig"); 2 const testing = @import("std").testing; 3 4 fn test__negvsi2(a: i32, expected: i32) !void { 5 const result = negv.__negvsi2(a); 6 try testing.expectEqual(expected, result); 7 } 8 9 test "negvsi2" { 10 // -2^31 <= i32 <= 2^31-1 11 // 2^31 = 2147483648 12 // 2^31-1 = 2147483647 13 // TODO write panic handler for testing panics 14 //try test__negvsi2(-2147483648, -5); // tested with return -5; and panic 15 try test__negvsi2(-2147483647, 2147483647); 16 try test__negvsi2(-2147483646, 2147483646); 17 try test__negvsi2(-2147483645, 2147483645); 18 try test__negvsi2(-2147483644, 2147483644); 19 try test__negvsi2(-42, 42); 20 try test__negvsi2(-7, 7); 21 try test__negvsi2(-1, 1); 22 try test__negvsi2(0, 0); 23 try test__negvsi2(1, -1); 24 try test__negvsi2(7, -7); 25 try test__negvsi2(42, -42); 26 try test__negvsi2(2147483644, -2147483644); 27 try test__negvsi2(2147483645, -2147483645); 28 try test__negvsi2(2147483646, -2147483646); 29 try test__negvsi2(2147483647, -2147483647); 30 }