How can I test user input?

[squeek502]

Testing without stdin/stdout is generally the better way to go, but just for completeness, this thread contains a few possible approaches for testing the program in the OP unmodified:

How to write integration tests for CLI utilities?

Let’s say I am writing a CLI utility, which, say, prints hello world: // ./main.zig const std = @import("std"); pub fn main() !void { try std.io.getStdOut().writeAll("hello world"); } Now, I want to write an integration test to run the utility and check its output, something like this: // ./tests.zig const std = @import("std"); test "it prints hello world" { const exe_path: []const u8 = get_exe_path(); const exec_result = try std.ChildProcess.exec(.{ .allocator = std.tes…

For the build system approach, you’d want to do something like:

test_foo.setStdIn(.{ .bytes = "foo\n" });
test_foo.expectStdOutEqual("Enter a word: \n");
test_foo.expectStdErrEqual("f o o ");