zig/test/compare_output.zig
2022-11-29 23:30:38 -07:00

533 lines
20 KiB
Zig

const std = @import("std");
const os = std.os;
const tests = @import("tests.zig");
pub fn addCases(cases: *tests.CompareOutputContext) void {
cases.addC("hello world with libc",
\\const c = @cImport({
\\ // See https://github.com/ziglang/zig/issues/515
\\ @cDefine("_NO_CRT_STDIO_INLINE", "1");
\\ @cInclude("stdio.h");
\\});
\\pub export fn main(argc: c_int, argv: [*][*]u8) c_int {
\\ _ = argc;
\\ _ = argv;
\\ _ = c.puts("Hello, world!");
\\ return 0;
\\}
, "Hello, world!" ++ std.cstr.line_sep);
cases.add("hello world without libc",
\\const io = @import("std").io;
\\
\\pub fn main() void {
\\ const stdout = io.getStdOut().writer();
\\ stdout.print("Hello, world!\n{d:4} {x:3} {c}\n", .{@as(u32, 12), @as(u16, 0x12), @as(u8, 'a')}) catch unreachable;
\\}
, "Hello, world!\n 12 12 a\n");
cases.addC("number literals",
\\const std = @import("std");
\\const builtin = @import("builtin");
\\const is_windows = builtin.os.tag == .windows;
\\const c = @cImport({
\\ if (is_windows) {
\\ // See https://github.com/ziglang/zig/issues/515
\\ @cDefine("_NO_CRT_STDIO_INLINE", "1");
\\ @cInclude("io.h");
\\ @cInclude("fcntl.h");
\\ }
\\ @cInclude("stdio.h");
\\});
\\
\\pub export fn main(argc: c_int, argv: [*][*]u8) c_int {
\\ _ = argc;
\\ _ = argv;
\\ if (is_windows) {
\\ // we want actual \n, not \r\n
\\ _ = c._setmode(1, c._O_BINARY);
\\ }
\\ _ = c.printf("0: %llu\n",
\\ @as(u64, 0));
\\ _ = c.printf("320402575052271: %llu\n",
\\ @as(u64, 320402575052271));
\\ _ = c.printf("0x01236789abcdef: %llu\n",
\\ @as(u64, 0x01236789abcdef));
\\ _ = c.printf("0xffffffffffffffff: %llu\n",
\\ @as(u64, 0xffffffffffffffff));
\\ _ = c.printf("0x000000ffffffffffffffff: %llu\n",
\\ @as(u64, 0x000000ffffffffffffffff));
\\ _ = c.printf("0o1777777777777777777777: %llu\n",
\\ @as(u64, 0o1777777777777777777777));
\\ _ = c.printf("0o0000001777777777777777777777: %llu\n",
\\ @as(u64, 0o0000001777777777777777777777));
\\ _ = c.printf("0b1111111111111111111111111111111111111111111111111111111111111111: %llu\n",
\\ @as(u64, 0b1111111111111111111111111111111111111111111111111111111111111111));
\\ _ = c.printf("0b0000001111111111111111111111111111111111111111111111111111111111111111: %llu\n",
\\ @as(u64, 0b0000001111111111111111111111111111111111111111111111111111111111111111));
\\
\\ _ = c.printf("\n");
\\
\\ _ = c.printf("0.0: %.013a\n",
\\ @as(f64, 0.0));
\\ _ = c.printf("0e0: %.013a\n",
\\ @as(f64, 0e0));
\\ _ = c.printf("0.0e0: %.013a\n",
\\ @as(f64, 0.0e0));
\\ _ = c.printf("000000000000000000000000000000000000000000000000000000000.0e0: %.013a\n",
\\ @as(f64, 0.0e0));
\\ _ = c.printf("0.000000000000000000000000000000000000000000000000000000000e0: %.013a\n",
\\ @as(f64, 0.000000000000000000000000000000000000000000000000000000000e0));
\\ _ = c.printf("0.0e000000000000000000000000000000000000000000000000000000000: %.013a\n",
\\ @as(f64, 0.0e000000000000000000000000000000000000000000000000000000000));
\\ _ = c.printf("1.0: %.013a\n",
\\ @as(f64, 1.0));
\\ _ = c.printf("10.0: %.013a\n",
\\ @as(f64, 10.0));
\\ _ = c.printf("10.5: %.013a\n",
\\ @as(f64, 10.5));
\\ _ = c.printf("10.5e5: %.013a\n",
\\ @as(f64, 10.5e5));
\\ _ = c.printf("10.5e+5: %.013a\n",
\\ @as(f64, 10.5e+5));
\\ _ = c.printf("50.0e-2: %.013a\n",
\\ @as(f64, 50.0e-2));
\\ _ = c.printf("50e-2: %.013a\n",
\\ @as(f64, 50e-2));
\\
\\ _ = c.printf("\n");
\\
\\ _ = c.printf("0x1.0: %.013a\n",
\\ @as(f64, 0x1.0));
\\ _ = c.printf("0x10.0: %.013a\n",
\\ @as(f64, 0x10.0));
\\ _ = c.printf("0x100.0: %.013a\n",
\\ @as(f64, 0x100.0));
\\ _ = c.printf("0x103.0: %.013a\n",
\\ @as(f64, 0x103.0));
\\ _ = c.printf("0x103.7: %.013a\n",
\\ @as(f64, 0x103.7));
\\ _ = c.printf("0x103.70: %.013a\n",
\\ @as(f64, 0x103.70));
\\ _ = c.printf("0x103.70p4: %.013a\n",
\\ @as(f64, 0x103.70p4));
\\ _ = c.printf("0x103.70p5: %.013a\n",
\\ @as(f64, 0x103.70p5));
\\ _ = c.printf("0x103.70p+5: %.013a\n",
\\ @as(f64, 0x103.70p+5));
\\ _ = c.printf("0x103.70p-5: %.013a\n",
\\ @as(f64, 0x103.70p-5));
\\
\\ return 0;
\\}
,
\\0: 0
\\320402575052271: 320402575052271
\\0x01236789abcdef: 320402575052271
\\0xffffffffffffffff: 18446744073709551615
\\0x000000ffffffffffffffff: 18446744073709551615
\\0o1777777777777777777777: 18446744073709551615
\\0o0000001777777777777777777777: 18446744073709551615
\\0b1111111111111111111111111111111111111111111111111111111111111111: 18446744073709551615
\\0b0000001111111111111111111111111111111111111111111111111111111111111111: 18446744073709551615
\\
\\0.0: 0x0.0000000000000p+0
\\0e0: 0x0.0000000000000p+0
\\0.0e0: 0x0.0000000000000p+0
\\000000000000000000000000000000000000000000000000000000000.0e0: 0x0.0000000000000p+0
\\0.000000000000000000000000000000000000000000000000000000000e0: 0x0.0000000000000p+0
\\0.0e000000000000000000000000000000000000000000000000000000000: 0x0.0000000000000p+0
\\1.0: 0x1.0000000000000p+0
\\10.0: 0x1.4000000000000p+3
\\10.5: 0x1.5000000000000p+3
\\10.5e5: 0x1.0059000000000p+20
\\10.5e+5: 0x1.0059000000000p+20
\\50.0e-2: 0x1.0000000000000p-1
\\50e-2: 0x1.0000000000000p-1
\\
\\0x1.0: 0x1.0000000000000p+0
\\0x10.0: 0x1.0000000000000p+4
\\0x100.0: 0x1.0000000000000p+8
\\0x103.0: 0x1.0300000000000p+8
\\0x103.7: 0x1.0370000000000p+8
\\0x103.70: 0x1.0370000000000p+8
\\0x103.70p4: 0x1.0370000000000p+12
\\0x103.70p5: 0x1.0370000000000p+13
\\0x103.70p+5: 0x1.0370000000000p+13
\\0x103.70p-5: 0x1.0370000000000p+3
\\
);
cases.add("order-independent declarations",
\\const io = @import("std").io;
\\const z = io.stdin_fileno;
\\const x : @TypeOf(y) = 1234;
\\const y : u16 = 5678;
\\pub fn main() void {
\\ var x_local : i32 = print_ok(x);
\\ _ = x_local;
\\}
\\fn print_ok(val: @TypeOf(x)) @TypeOf(foo) {
\\ _ = val;
\\ const stdout = io.getStdOut().writer();
\\ stdout.print("OK\n", .{}) catch unreachable;
\\ return 0;
\\}
\\const foo : i32 = 0;
, "OK\n");
cases.addC("expose function pointer to C land",
\\const c = @cImport(@cInclude("stdlib.h"));
\\
\\export fn compare_fn(a: ?*const anyopaque, b: ?*const anyopaque) c_int {
\\ const a_int = @ptrCast(*const i32, @alignCast(@alignOf(i32), a));
\\ const b_int = @ptrCast(*const i32, @alignCast(@alignOf(i32), b));
\\ if (a_int.* < b_int.*) {
\\ return -1;
\\ } else if (a_int.* > b_int.*) {
\\ return 1;
\\ } else {
\\ return 0;
\\ }
\\}
\\
\\pub export fn main() c_int {
\\ var array = [_]u32{ 1, 7, 3, 2, 0, 9, 4, 8, 6, 5 };
\\
\\ c.qsort(@ptrCast(?*anyopaque, &array), @intCast(c_ulong, array.len), @sizeOf(i32), compare_fn);
\\
\\ for (array) |item, i| {
\\ if (item != i) {
\\ c.abort();
\\ }
\\ }
\\
\\ return 0;
\\}
, "");
cases.addC("casting between float and integer types",
\\const std = @import("std");
\\const builtin = @import("builtin");
\\const is_windows = builtin.os.tag == .windows;
\\const c = @cImport({
\\ if (is_windows) {
\\ // See https://github.com/ziglang/zig/issues/515
\\ @cDefine("_NO_CRT_STDIO_INLINE", "1");
\\ @cInclude("io.h");
\\ @cInclude("fcntl.h");
\\ }
\\ @cInclude("stdio.h");
\\});
\\
\\pub export fn main(argc: c_int, argv: [*][*]u8) c_int {
\\ _ = argc;
\\ _ = argv;
\\ if (is_windows) {
\\ // we want actual \n, not \r\n
\\ _ = c._setmode(1, c._O_BINARY);
\\ }
\\ const small: f32 = 3.25;
\\ const x: f64 = small;
\\ const y = @floatToInt(i32, x);
\\ const z = @intToFloat(f64, y);
\\ _ = c.printf("%.2f\n%d\n%.2f\n%.2f\n", x, y, z, @as(f64, -0.4));
\\ return 0;
\\}
, "3.25\n3\n3.00\n-0.40\n");
cases.add("same named methods in incomplete struct",
\\const io = @import("std").io;
\\
\\const Foo = struct {
\\ field1: Bar,
\\
\\ fn method(a: *const Foo) bool {
\\ _ = a;
\\ return true;
\\ }
\\};
\\
\\const Bar = struct {
\\ field2: i32,
\\
\\ fn method(b: *const Bar) bool {
\\ _ = b;
\\ return true;
\\ }
\\};
\\
\\pub fn main() void {
\\ const bar = Bar {.field2 = 13,};
\\ const foo = Foo {.field1 = bar,};
\\ const stdout = io.getStdOut().writer();
\\ if (!foo.method()) {
\\ stdout.print("BAD\n", .{}) catch unreachable;
\\ }
\\ if (!bar.method()) {
\\ stdout.print("BAD\n", .{}) catch unreachable;
\\ }
\\ stdout.print("OK\n", .{}) catch unreachable;
\\}
, "OK\n");
cases.add("defer with only fallthrough",
\\const io = @import("std").io;
\\pub fn main() void {
\\ const stdout = io.getStdOut().writer();
\\ stdout.print("before\n", .{}) catch unreachable;
\\ defer stdout.print("defer1\n", .{}) catch unreachable;
\\ defer stdout.print("defer2\n", .{}) catch unreachable;
\\ defer stdout.print("defer3\n", .{}) catch unreachable;
\\ stdout.print("after\n", .{}) catch unreachable;
\\}
, "before\nafter\ndefer3\ndefer2\ndefer1\n");
cases.add("defer with return",
\\const io = @import("std").io;
\\const os = @import("std").os;
\\pub fn main() void {
\\ const stdout = io.getStdOut().writer();
\\ stdout.print("before\n", .{}) catch unreachable;
\\ defer stdout.print("defer1\n", .{}) catch unreachable;
\\ defer stdout.print("defer2\n", .{}) catch unreachable;
\\ var gpa = @import("std").heap.GeneralPurposeAllocator(.{}){};
\\ defer _ = gpa.deinit();
\\ var arena = @import("std").heap.ArenaAllocator.init(gpa.allocator());
\\ defer arena.deinit();
\\ var args_it = @import("std").process.argsWithAllocator(arena.allocator()) catch unreachable;
\\ if (args_it.skip() and !args_it.skip()) return;
\\ defer stdout.print("defer3\n", .{}) catch unreachable;
\\ stdout.print("after\n", .{}) catch unreachable;
\\}
, "before\ndefer2\ndefer1\n");
cases.add("errdefer and it fails",
\\const io = @import("std").io;
\\pub fn main() void {
\\ do_test() catch return;
\\}
\\fn do_test() !void {
\\ const stdout = io.getStdOut().writer();
\\ stdout.print("before\n", .{}) catch unreachable;
\\ defer stdout.print("defer1\n", .{}) catch unreachable;
\\ errdefer stdout.print("deferErr\n", .{}) catch unreachable;
\\ try its_gonna_fail();
\\ defer stdout.print("defer3\n", .{}) catch unreachable;
\\ stdout.print("after\n", .{}) catch unreachable;
\\}
\\fn its_gonna_fail() !void {
\\ return error.IToldYouItWouldFail;
\\}
, "before\ndeferErr\ndefer1\n");
cases.add("errdefer and it passes",
\\const io = @import("std").io;
\\pub fn main() void {
\\ do_test() catch return;
\\}
\\fn do_test() !void {
\\ const stdout = io.getStdOut().writer();
\\ stdout.print("before\n", .{}) catch unreachable;
\\ defer stdout.print("defer1\n", .{}) catch unreachable;
\\ errdefer stdout.print("deferErr\n", .{}) catch unreachable;
\\ try its_gonna_pass();
\\ defer stdout.print("defer3\n", .{}) catch unreachable;
\\ stdout.print("after\n", .{}) catch unreachable;
\\}
\\fn its_gonna_pass() anyerror!void { }
, "before\nafter\ndefer3\ndefer1\n");
cases.addCase(x: {
var tc = cases.create("@embedFile",
\\const foo_txt = @embedFile("foo.txt");
\\const io = @import("std").io;
\\
\\pub fn main() void {
\\ const stdout = io.getStdOut().writer();
\\ stdout.print(foo_txt, .{}) catch unreachable;
\\}
, "1234\nabcd\n");
tc.addSourceFile("foo.txt", "1234\nabcd\n");
break :x tc;
});
cases.addCase(x: {
var tc = cases.create("parsing args",
\\const std = @import("std");
\\const io = std.io;
\\const os = std.os;
\\
\\pub fn main() !void {
\\ var gpa = std.heap.GeneralPurposeAllocator(.{}){};
\\ defer _ = gpa.deinit();
\\ var arena = std.heap.ArenaAllocator.init(gpa.allocator());
\\ defer arena.deinit();
\\ var args_it = try std.process.argsWithAllocator(arena.allocator());
\\ const stdout = io.getStdOut().writer();
\\ var index: usize = 0;
\\ _ = args_it.skip();
\\ while (args_it.next()) |arg| : (index += 1) {
\\ try stdout.print("{}: {s}\n", .{index, arg});
\\ }
\\}
,
\\0: first arg
\\1: 'a' 'b' \
\\2: bare
\\3: ba""re
\\4: "
\\5: last arg
\\
);
tc.setCommandLineArgs(&[_][]const u8{
"first arg",
"'a' 'b' \\",
"bare",
"ba\"\"re",
"\"",
"last arg",
});
break :x tc;
});
cases.addCase(x: {
var tc = cases.create("parsing args new API",
\\const std = @import("std");
\\const io = std.io;
\\const os = std.os;
\\
\\pub fn main() !void {
\\ var gpa = std.heap.GeneralPurposeAllocator(.{}){};
\\ defer _ = gpa.deinit();
\\ var arena = std.heap.ArenaAllocator.init(gpa.allocator());
\\ defer arena.deinit();
\\ var args_it = try std.process.argsWithAllocator(arena.allocator());
\\ const stdout = io.getStdOut().writer();
\\ var index: usize = 0;
\\ _ = args_it.skip();
\\ while (args_it.next()) |arg| : (index += 1) {
\\ try stdout.print("{}: {s}\n", .{index, arg});
\\ }
\\}
,
\\0: first arg
\\1: 'a' 'b' \
\\2: bare
\\3: ba""re
\\4: "
\\5: last arg
\\
);
tc.setCommandLineArgs(&[_][]const u8{
"first arg",
"'a' 'b' \\",
"bare",
"ba\"\"re",
"\"",
"last arg",
});
break :x tc;
});
// It is required to override the log function in order to print to stdout instead of stderr
cases.add("std.log per scope log level override",
\\const std = @import("std");
\\
\\pub const log_level: std.log.Level = .debug;
\\
\\pub const scope_levels = [_]std.log.ScopeLevel{
\\ .{ .scope = .a, .level = .warn },
\\ .{ .scope = .c, .level = .err },
\\};
\\
\\const loga = std.log.scoped(.a);
\\const logb = std.log.scoped(.b);
\\const logc = std.log.scoped(.c);
\\
\\pub fn main() !void {
\\ loga.debug("", .{});
\\ logb.debug("", .{});
\\ logc.debug("", .{});
\\
\\ loga.info("", .{});
\\ logb.info("", .{});
\\ logc.info("", .{});
\\
\\ loga.warn("", .{});
\\ logb.warn("", .{});
\\ logc.warn("", .{});
\\
\\ loga.err("", .{});
\\ logb.err("", .{});
\\ logc.err("", .{});
\\}
\\pub fn log(
\\ comptime level: std.log.Level,
\\ comptime scope: @TypeOf(.EnumLiteral),
\\ comptime format: []const u8,
\\ args: anytype,
\\) void {
\\ const level_txt = comptime level.asText();
\\ const prefix2 = if (scope == .default) ": " else "(" ++ @tagName(scope) ++ "):";
\\ const stdout = std.io.getStdOut().writer();
\\ nosuspend stdout.print(level_txt ++ prefix2 ++ format ++ "\n", args) catch return;
\\}
,
\\debug(b):
\\info(b):
\\warning(a):
\\warning(b):
\\error(a):
\\error(b):
\\error(c):
\\
);
// It is required to override the log function in order to print to stdout instead of stderr
cases.add("std.heap.LoggingAllocator logs to std.log",
\\const std = @import("std");
\\
\\pub const log_level: std.log.Level = .debug;
\\
\\pub fn main() !void {
\\ var allocator_buf: [10]u8 = undefined;
\\ var fba = std.heap.FixedBufferAllocator.init(&allocator_buf);
\\ var fba_wrapped = std.mem.validationWrap(fba);
\\ var logging_allocator = std.heap.loggingAllocator(fba_wrapped.allocator());
\\ const allocator = logging_allocator.allocator();
\\
\\ var a = try allocator.alloc(u8, 10);
\\ try std.testing.expect(allocator.resize(a, 5));
\\ a = a[0..5];
\\ try std.testing.expect(a.len == 5);
\\ try std.testing.expect(!allocator.resize(a, 20));
\\ allocator.free(a);
\\}
\\
\\pub fn log(
\\ comptime level: std.log.Level,
\\ comptime scope: @TypeOf(.EnumLiteral),
\\ comptime format: []const u8,
\\ args: anytype,
\\) void {
\\ const level_txt = comptime level.asText();
\\ const prefix2 = if (scope == .default) ": " else "(" ++ @tagName(scope) ++ "): ";
\\ const stdout = std.io.getStdOut().writer();
\\ nosuspend stdout.print(level_txt ++ prefix2 ++ format ++ "\n", args) catch return;
\\}
,
\\debug: alloc - success - len: 10, ptr_align: 0
\\debug: shrink - success - 10 to 5, buf_align: 0
\\error: expand - failure - 5 to 20, buf_align: 0
\\debug: free - len: 5
\\
);
}