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For the record, I'm aware that there's a lot here that I'm not testing. I think the smart move is to get towards a running machine and see which configurations it actually tries to set up, then follow along with appropriate testing; it might cause me to discover a flaw in my comprehension before I've made the same mistake in both the code and a test.
90 lines
2.1 KiB
Plaintext
90 lines
2.1 KiB
Plaintext
//
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// IIgsMemoryMapTests.mm
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// Clock SignalTests
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//
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// Created by Thomas Harte on 25/10/2020.
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// Copyright © 2020 Thomas Harte. All rights reserved.
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//
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#import <XCTest/XCTest.h>
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#include "../../../Machines/Apple/AppleIIgs/MemoryMap.hpp"
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namespace {
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using MemoryMap = Apple::IIgs::MemoryMap;
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}
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@interface IIgsMemoryMapTests : XCTestCase
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@end
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@implementation IIgsMemoryMapTests {
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MemoryMap _memoryMap;
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std::vector<uint8_t> _ram;
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std::vector<uint8_t> _rom;
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}
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- (void)setUp {
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_ram.resize((128 + 8 * 1024) * 1024);
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_rom.resize(256 * 1024);
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_memoryMap.set_storage(_ram, _rom);
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}
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- (void)write:(uint8_t)value address:(uint32_t)address {
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const auto ®ion = MemoryMapRegion(_memoryMap, address);
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MemoryMapWrite(_memoryMap, region, address, &value);
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}
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- (uint8_t)readAddress:(uint32_t)address {
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const auto ®ion = MemoryMapRegion(_memoryMap, address);
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uint8_t value;
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MemoryMapRead(region, address, &value);
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return value;
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}
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- (void)testHigherRAM {
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// Fill memory via the map.
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for(int address = 0x020000; address < 0x800000; ++address) {
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const uint8_t value = uint8_t(address ^ (address >> 8));
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[self write:value address:address];
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}
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// Test by direct access.
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for(int address = 0x020000; address < 0x800000; ++address) {
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const uint8_t value = uint8_t(address ^ (address >> 8));
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XCTAssertEqual([self readAddress:address], value);
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}
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}
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- (void)testROMIsReadonly {
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_rom[0] = 0xc0;
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// Test that ROM can be read in the correct location.
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XCTAssertEqual([self readAddress:0xfc0000], 0xc0);
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// Try writing to it, and check that nothing happened.
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[self write:0xfc address:0xfc0000];
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XCTAssertEqual(_rom[0], 0xc0);
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}
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- (void)testROM {
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_rom.back() = 0xa8;
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auto test_bank = [self](uint32_t bank) {
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const uint32_t address = bank | 0x00ffff;
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XCTAssertEqual([self readAddress:address], 0xa8);
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};
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test_bank(0x000000);
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test_bank(0x010000);
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test_bank(0xe00000);
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test_bank(0xe10000);
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}
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- (void)testShadowing {
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[self write:0xab address:0x000400];
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[self write:0xcd address:0x010400];
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XCTAssertEqual([self readAddress:0xe00400], 0xab);
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XCTAssertEqual([self readAddress:0xe10400], 0xcd);
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}
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@end
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