81 lines
1.5 KiB
Zig
81 lines
1.5 KiB
Zig
const std = @import("std");
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const expect = std.testing.expect;
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test "bool literals" {
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try expect(true);
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try expect(!false);
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}
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test "cast bool to int" {
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const t = true;
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const f = false;
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try expect(@boolToInt(t) == @as(u32, 1));
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try expect(@boolToInt(f) == @as(u32, 0));
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try nonConstCastBoolToInt(t, f);
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}
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fn nonConstCastBoolToInt(t: bool, f: bool) !void {
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try expect(@boolToInt(t) == @as(u32, 1));
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try expect(@boolToInt(f) == @as(u32, 0));
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}
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test "bool cmp" {
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try expect(testBoolCmp(true, false) == false);
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}
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fn testBoolCmp(a: bool, b: bool) bool {
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return a == b;
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}
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const global_f = false;
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const global_t = true;
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const not_global_f = !global_f;
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const not_global_t = !global_t;
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test "compile time bool not" {
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try expect(not_global_f);
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try expect(!not_global_t);
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}
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test "short circuit" {
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try testShortCircuit(false, true);
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comptime try testShortCircuit(false, true);
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}
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fn testShortCircuit(f: bool, t: bool) !void {
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var hit_1 = f;
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var hit_2 = f;
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var hit_3 = f;
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var hit_4 = f;
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if (t or x: {
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try expect(f);
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break :x f;
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}) {
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hit_1 = t;
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}
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if (f or x: {
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hit_2 = t;
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break :x f;
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}) {
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try expect(f);
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}
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if (t and x: {
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hit_3 = t;
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break :x f;
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}) {
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try expect(f);
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}
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if (f and x: {
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try expect(f);
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break :x f;
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}) {
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try expect(f);
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} else {
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hit_4 = t;
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}
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try expect(hit_1);
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try expect(hit_2);
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try expect(hit_3);
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try expect(hit_4);
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}
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