Commit 4173a2bc24af6839f87b4b4dfd5096f34764d7cc | zig

1 files changed, 29 insertions(+), 0 deletions(-)

lib/std/os/test.zig+29

...	@@ -756,3 +756,32 @@ test "sigaction" {	...	@@ -756,3 +756,32 @@ test "sigaction" {
756	os.sigaction(os.SIGUSR1, null, &old_sa);	756	os.sigaction(os.SIGUSR1, null, &old_sa);
757	try testing.expectEqual(os.SIG_DFL, old_sa.handler.sigaction);	757	try testing.expectEqual(os.SIG_DFL, old_sa.handler.sigaction);
758	}	758	}
		759
		760	test "dup & dup2" {
		761	if (native_os != .linux) return error.SkipZigTest;
		762
		763	var tmp = tmpDir(.{});
		764	defer tmp.cleanup();
		765
		766	{
		767	var file = try tmp.dir.createFile("os_dup_test", .{});
		768	defer file.close();
		769
		770	var duped = std.fs.File{ .handle = try std.os.dup(file.handle) };
		771	defer duped.close();
		772	try duped.writeAll("dup");
		773
		774	// Tests aren't run in parallel so using the next fd shouldn't be an issue.
		775	const new_fd = duped.handle + 1;
		776	try std.os.dup2(file.handle, new_fd);
		777	var dup2ed = std.fs.File{ .handle = new_fd };
		778	defer dup2ed.close();
		779	try dup2ed.writeAll("dup2");
		780	}
		781
		782	var file = try tmp.dir.openFile("os_dup_test", .{});
		783	defer file.close();
		784
		785	var buf: [7]u8 = undefined;
		786	try testing.expectEqualStrings("dupdup2", buf[0..try file.readAll(&buf)]);
		787	}