106 lines
5.7 KiB
Zig
106 lines
5.7 KiB
Zig
const cmp = @import("cmp.zig");
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const testing = @import("std").testing;
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fn test__cmpdi2(a: i64, b: i64, expected: i64) !void {
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const result = cmp.__cmpdi2(a, b);
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try testing.expectEqual(expected, result);
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}
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test "cmpdi2" {
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// minInt == -9223372036854775808
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// maxInt == 9223372036854775807
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// minInt/2 == -4611686018427387904
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// maxInt/2 == 4611686018427387903
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// 1. equality minInt, minInt+1, minInt/2, 0, maxInt/2, maxInt-1, maxInt
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try test__cmpdi2(-9223372036854775808, -9223372036854775808, 1);
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try test__cmpdi2(-9223372036854775807, -9223372036854775807, 1);
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try test__cmpdi2(-4611686018427387904, -4611686018427387904, 1);
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try test__cmpdi2(-1, -1, 1);
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try test__cmpdi2(0, 0, 1);
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try test__cmpdi2(1, 1, 1);
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try test__cmpdi2(4611686018427387903, 4611686018427387903, 1);
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try test__cmpdi2(9223372036854775806, 9223372036854775806, 1);
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try test__cmpdi2(9223372036854775807, 9223372036854775807, 1);
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// 2. cmp minInt, { minInt + 1, minInt/2, -1, 0, 1, maxInt/2, maxInt-1, maxInt}
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try test__cmpdi2(-9223372036854775808, -9223372036854775807, 0);
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try test__cmpdi2(-9223372036854775808, -4611686018427387904, 0);
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try test__cmpdi2(-9223372036854775808, -1, 0);
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try test__cmpdi2(-9223372036854775808, 0, 0);
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try test__cmpdi2(-9223372036854775808, 1, 0);
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try test__cmpdi2(-9223372036854775808, 4611686018427387903, 0);
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try test__cmpdi2(-9223372036854775808, 9223372036854775806, 0);
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try test__cmpdi2(-9223372036854775808, 9223372036854775807, 0);
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// 3. cmp minInt+1, {minInt, minInt/2, -1,0,1, maxInt/2, maxInt-1, maxInt}
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try test__cmpdi2(-9223372036854775807, -9223372036854775808, 2);
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try test__cmpdi2(-9223372036854775807, -4611686018427387904, 0);
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try test__cmpdi2(-9223372036854775807, -1, 0);
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try test__cmpdi2(-9223372036854775807, 0, 0);
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try test__cmpdi2(-9223372036854775807, 1, 0);
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try test__cmpdi2(-9223372036854775807, 4611686018427387903, 0);
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try test__cmpdi2(-9223372036854775807, 9223372036854775806, 0);
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try test__cmpdi2(-9223372036854775807, 9223372036854775807, 0);
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// 4. cmp minInt/2, {minInt, minInt + 1, -1,0,1, maxInt/2, maxInt-1, maxInt}
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try test__cmpdi2(-4611686018427387904, -9223372036854775808, 2);
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try test__cmpdi2(-4611686018427387904, -9223372036854775807, 2);
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try test__cmpdi2(-4611686018427387904, -1, 0);
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try test__cmpdi2(-4611686018427387904, 0, 0);
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try test__cmpdi2(-4611686018427387904, 1, 0);
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try test__cmpdi2(-4611686018427387904, 4611686018427387903, 0);
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try test__cmpdi2(-4611686018427387904, 9223372036854775806, 0);
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try test__cmpdi2(-4611686018427387904, 9223372036854775807, 0);
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// 5. cmp -1, {minInt, minInt + 1, minInt/2, 0,1, maxInt/2, maxInt-1, maxInt}
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try test__cmpdi2(-1, -9223372036854775808, 2);
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try test__cmpdi2(-1, -9223372036854775807, 2);
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try test__cmpdi2(-1, -4611686018427387904, 2);
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try test__cmpdi2(-1, 0, 0);
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try test__cmpdi2(-1, 1, 0);
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try test__cmpdi2(-1, 4611686018427387903, 0);
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try test__cmpdi2(-1, 9223372036854775806, 0);
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try test__cmpdi2(-1, 9223372036854775807, 0);
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// 6. cmp 0, {minInt, minInt + 1, minInt/2, -1, 1, maxInt/2, maxInt-1, maxInt}
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try test__cmpdi2(0, -9223372036854775808, 2);
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try test__cmpdi2(0, -9223372036854775807, 2);
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try test__cmpdi2(0, -4611686018427387904, 2);
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try test__cmpdi2(0, -1, 2);
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try test__cmpdi2(0, 1, 0);
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try test__cmpdi2(0, 4611686018427387903, 0);
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try test__cmpdi2(0, 9223372036854775806, 0);
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try test__cmpdi2(0, 9223372036854775807, 0);
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// 7. cmp 1, {minInt, minInt + 1, minInt/2, -1,0, maxInt/2, maxInt-1, maxInt}
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try test__cmpdi2(1, -9223372036854775808, 2);
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try test__cmpdi2(1, -9223372036854775807, 2);
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try test__cmpdi2(1, -4611686018427387904, 2);
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try test__cmpdi2(1, -1, 2);
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try test__cmpdi2(1, 0, 2);
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try test__cmpdi2(1, 4611686018427387903, 0);
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try test__cmpdi2(1, 9223372036854775806, 0);
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try test__cmpdi2(1, 9223372036854775807, 0);
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// 8. cmp maxInt/2, {minInt, minInt + 1, minInt/2, -1,0,1, maxInt-1, maxInt}
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try test__cmpdi2(4611686018427387903, -9223372036854775808, 2);
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try test__cmpdi2(4611686018427387903, -9223372036854775807, 2);
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try test__cmpdi2(4611686018427387903, -4611686018427387904, 2);
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try test__cmpdi2(4611686018427387903, -1, 2);
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try test__cmpdi2(4611686018427387903, 0, 2);
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try test__cmpdi2(4611686018427387903, 1, 2);
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try test__cmpdi2(4611686018427387903, 9223372036854775806, 0);
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try test__cmpdi2(4611686018427387903, 9223372036854775807, 0);
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// 9. cmp maxInt-1, {minInt, minInt + 1, minInt/2, -1,0,1, maxInt/2, maxInt}
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try test__cmpdi2(9223372036854775806, -9223372036854775808, 2);
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try test__cmpdi2(9223372036854775806, -9223372036854775807, 2);
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try test__cmpdi2(9223372036854775806, -4611686018427387904, 2);
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try test__cmpdi2(9223372036854775806, -1, 2);
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try test__cmpdi2(9223372036854775806, 0, 2);
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try test__cmpdi2(9223372036854775806, 1, 2);
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try test__cmpdi2(9223372036854775806, 4611686018427387903, 2);
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try test__cmpdi2(9223372036854775806, 9223372036854775807, 0);
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// 10.cmp maxInt, {minInt, minInt + 1, minInt/2, -1,0,1, maxInt/2, maxInt-1, }
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try test__cmpdi2(9223372036854775807, -9223372036854775808, 2);
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try test__cmpdi2(9223372036854775807, -9223372036854775807, 2);
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try test__cmpdi2(9223372036854775807, -4611686018427387904, 2);
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try test__cmpdi2(9223372036854775807, -1, 2);
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try test__cmpdi2(9223372036854775807, 0, 2);
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try test__cmpdi2(9223372036854775807, 1, 2);
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try test__cmpdi2(9223372036854775807, 4611686018427387903, 2);
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try test__cmpdi2(9223372036854775807, 9223372036854775806, 2);
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}
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