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const std = @import("std");
const mem = std.mem;
const expect = std.testing.expect;
// normal comment
/// this is a documentation comment
/// doc comment line 2
fn emptyFunctionWithComments() void {}
test "empty function with comments" {
emptyFunctionWithComments();
}
test "truncate" {
try expect(testTruncate(0x10fd) == 0xfd);
comptime try expect(testTruncate(0x10fd) == 0xfd);
}
fn testTruncate(x: u32) u8 {
return @truncate(u8, x);
}
const g1: i32 = 1233 + 1;
var g2: i32 = 0;
test "global variables" {
try expect(g2 == 0);
g2 = g1;
try expect(g2 == 1234);
}
test "comptime keyword on expressions" {
const x: i32 = comptime x: {
break :x 1 + 2 + 3;
};
try expect(x == comptime 6);
}
test "type equality" {
try expect(*const u8 != *u8);
}
test "pointer dereferencing" {
var x = @as(i32, 3);
const y = &x;
y.* += 1;
try expect(x == 4);
try expect(y.* == 4);
}
test "const expression eval handling of variables" {
var x = true;
while (x) {
x = false;
}
}
test "character literals" {
try expect('\'' == single_quote);
}
const single_quote = '\'';
test "non const ptr to aliased type" {
const int = i32;
try expect(?*int == ?*i32);
}
test "cold function" {
thisIsAColdFn();
comptime thisIsAColdFn();
}
fn thisIsAColdFn() void {
@setCold(true);
}
test "unicode escape in character literal" {
var a: u24 = '\u{01f4a9}';
try expect(a == 128169);
}
test "unicode character in character literal" {
try expect('💩' == 128169);
}
fn first4KeysOfHomeRow() []const u8 {
return "aoeu";
}
test "return string from function" {
try expect(mem.eql(u8, first4KeysOfHomeRow(), "aoeu"));
}
test "hex escape" {
try expect(mem.eql(u8, "\x68\x65\x6c\x6c\x6f", "hello"));
}
test "multiline string" {
const s1 =
\\one
\\two)
\\three
;
const s2 = "one\ntwo)\nthree";
try expect(mem.eql(u8, s1, s2));
}
test "multiline string comments at start" {
const s1 =
//\\one
\\two)
\\three
;
const s2 = "two)\nthree";
try expect(mem.eql(u8, s1, s2));
}
test "multiline string comments at end" {
const s1 =
\\one
\\two)
//\\three
;
const s2 = "one\ntwo)";
try expect(mem.eql(u8, s1, s2));
}
test "multiline string comments in middle" {
const s1 =
\\one
//\\two)
\\three
;
const s2 = "one\nthree";
try expect(mem.eql(u8, s1, s2));
}
test "multiline string comments at multiple places" {
const s1 =
\\one
//\\two
\\three
//\\four
\\five
;
const s2 = "one\nthree\nfive";
try expect(mem.eql(u8, s1, s2));
}
test "call result of if else expression" {
try expect(mem.eql(u8, f2(true), "a"));
try expect(mem.eql(u8, f2(false), "b"));
}
fn f2(x: bool) []const u8 {
return (if (x) fA else fB)();
}
fn fA() []const u8 {
return "a";
}
fn fB() []const u8 {
return "b";
}
test "string concatenation" {
try expect(mem.eql(u8, "OK" ++ " IT " ++ "WORKED", "OK IT WORKED"));
}
|
