const std = @import("std");
const sys = @import("system.zig");

test "load value into accumulator" {
    var system: sys.System = .{};
    try system.loadFile(std.testing.io_instance.io(), "tests/first.bin");
    try system.step();
    try std.testing.expectEqual(0x52, system.a);
}

test "load values and check registers afterwards" {
    var system: sys.System = .{};
    try system.loadFile(std.testing.io_instance.io(), "tests/second.bin");

    while (system.read(system.pc) != 0x00) {
        try system.step();
    }

    try std.testing.expectEqual(2, system.a);
    try std.testing.expectEqual(1, system.c);
}

test "load values, add values, jump" {
    var system: sys.System = .{};
    try system.loadFile(std.testing.io_instance.io(), "tests/third.bin");

    while (system.read(system.pc) != 0x00) {
        try system.step();
    }

    try std.testing.expectEqual(0x03, system.a);
    try std.testing.expectEqual(0x03, system.c);
    try std.testing.expectEqual(0xa911, system.pc);
}