102 lines
2.6 KiB
Rust
102 lines
2.6 KiB
Rust
use gemma::chip8::computer::Chip8Computer;
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use gemma::constants::CHIP8_VIDEO_MEMORY;
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#[test]
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fn smoke() { assert!(true) }
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fn load_result(to_load: &str) -> String {
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std::fs::read_to_string(format!("../resources/test/{}", to_load)).unwrap()
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}
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fn load_rom(to_load: &str) -> Vec<u8> {
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std::fs::read(format!("../resources/roms/{}", to_load)).unwrap()
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}
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#[test]
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fn reset_clears_video() {
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let mut x = Chip8Computer::new();
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for i in 0..CHIP8_VIDEO_MEMORY {
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x.video_memory.poke(i as u16, i % 2 == 0);
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}
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x.reset();
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x.video_memory.reset();
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assert_eq!(x.dump_video_to_string(), x.video_memory.format_as_string());
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for i in 0..CHIP8_VIDEO_MEMORY {
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assert!(!x.video_memory.peek(i as u16));
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}
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}
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#[test]
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fn level1_test() {
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let mut x = Chip8Computer::new();
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let level_1_rom = load_rom("1-chip8-logo.ch8");
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x.load_bytes_to_memory(0x200, (&level_1_rom).into());
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// run for 0x40 cycles
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while x.num_cycles < 0x40 {
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x.step_system();
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}
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assert_eq!(x.dump_video_to_string(), load_result("gemma_integration_level_1_test.asc"));
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}
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#[test]
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fn level2_test() {
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let mut x = Chip8Computer::new();
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// Load the IBM rom and run it.
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// it takes 39 cycles to get to the end so lets run it 40.
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let test_rom_to_run = load_rom("2-ibm-logo.ch8");
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x.load_bytes_to_memory(0x200, (&test_rom_to_run).into());
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for _ in 0..40 {
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x.step_system();
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}
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// ...then verify that the current video memory of the chip-8
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// simulator matches what we expect it to be
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assert_eq!(x.dump_video_to_string(), load_result("gemma_integration_ibm_rom_output.asc"));
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}
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#[test]
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fn level3_test() {
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let mut x = Chip8Computer::new();
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x.load_bytes_to_memory(
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0x200, (&load_rom("3-corax+.ch8")).into()
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);
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for i in 0..0x180 {
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x.step_system();
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}
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assert_eq!(x.dump_video_to_string(), load_result("gemma_integration_corax_plus.asc"));
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}
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#[test]
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fn rps_test() {
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let mut x = Chip8Computer::new();
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x.load_bytes_to_memory(0x200, &load_rom("RPS.ch8").into());
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for _ in 0..0xF0 {
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x.step_system();
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}
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assert_eq!(x.dump_video_to_string(), load_result("gemma_integration_rps_stage1.asc"));
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x.keypad.push_key(0x01);
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for _ in 0..0x200 {
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x.step_system();
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}
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assert_eq!(x.dump_video_to_string(), load_result("gemma_integration_rps_stage2.asc"));
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}
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#[test]
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fn level4_test() {
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// flags
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let mut x = Chip8Computer::new();
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x.load_bytes_to_memory(0x200, &load_rom("4-flags.ch8").into());
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for _ in 0..0x400 {
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x.step_system();
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}
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assert_eq!(x.dump_video_to_string(), load_result("gemma_integration_flags.asc"));
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}
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