mirror of
https://github.com/TomHarte/CLK.git
synced 2024-11-18 17:06:15 +00:00
91 lines
3.0 KiB
Plaintext
91 lines
3.0 KiB
Plaintext
//
|
|
// PCMTrackTests.m
|
|
// Clock Signal
|
|
//
|
|
// Created by Thomas Harte on 18/12/2016.
|
|
// Copyright 2016 Thomas Harte. All rights reserved.
|
|
//
|
|
|
|
#import <XCTest/XCTest.h>
|
|
|
|
#include "PCMTrack.hpp"
|
|
|
|
@interface PCMTrackTests : XCTestCase
|
|
@end
|
|
|
|
@implementation PCMTrackTests
|
|
|
|
- (Storage::Disk::PCMTrack)multiSpeedTrack
|
|
{
|
|
Storage::Disk::PCMSegment quickSegment, slowSegment;
|
|
|
|
quickSegment.data = {true, true, true, true, true, true, true, true};
|
|
quickSegment.length_of_a_bit.length = 1;
|
|
quickSegment.length_of_a_bit.clock_rate = 100;
|
|
|
|
slowSegment.data = {true, true, true, true, true, true, true, true};
|
|
slowSegment.length_of_a_bit.length = 1;
|
|
slowSegment.length_of_a_bit.clock_rate = 3;
|
|
|
|
return Storage::Disk::PCMTrack({quickSegment, slowSegment});
|
|
}
|
|
|
|
- (void)testMultispeedTrack
|
|
{
|
|
Storage::Disk::PCMTrack track = self.multiSpeedTrack;
|
|
std::vector<Storage::Disk::Track::Event> events;
|
|
Storage::Time total_length;
|
|
do {
|
|
events.push_back(track.get_next_event());
|
|
total_length += events.back().length;
|
|
} while(events.back().type != Storage::Disk::Track::Event::IndexHole);
|
|
|
|
XCTAssert(events.size() == 17, "Should have received 17 events; got %lu", events.size());
|
|
|
|
total_length.simplify();
|
|
XCTAssert(total_length.length == 1 && total_length.clock_rate == 1, "Events should have summed to a total time of 1; instead got %u/%u", total_length.length, total_length.clock_rate);
|
|
|
|
Storage::Time transition_length = events[0].length + events.back().length;
|
|
XCTAssert(events[8].length == transition_length, "Time taken in transition between speed zones should be half of a bit length in the first part plus half of a bit length in the second");
|
|
}
|
|
|
|
- (void)testComplicatedTrackSeek {
|
|
std::vector<Storage::Disk::PCMSegment> segments;
|
|
|
|
Storage::Disk::PCMSegment sync_segment;
|
|
sync_segment.data.resize(10*8);
|
|
std::fill(sync_segment.data.begin(), sync_segment.data.end(), true);
|
|
|
|
Storage::Disk::PCMSegment header_segment;
|
|
header_segment.data.resize(14*8);
|
|
std::fill(header_segment.data.begin(), header_segment.data.end(), true);
|
|
|
|
Storage::Disk::PCMSegment data_segment;
|
|
data_segment.data.resize(349*8);
|
|
std::fill(data_segment.data.begin(), data_segment.data.end(), true);
|
|
|
|
for(std::size_t c = 0; c < 16; ++c) {
|
|
segments.push_back(sync_segment);
|
|
segments.push_back(header_segment);
|
|
segments.push_back(sync_segment);
|
|
segments.push_back(data_segment);
|
|
segments.push_back(sync_segment);
|
|
}
|
|
|
|
Storage::Disk::PCMTrack track(segments);
|
|
const float late_time = 967445.0f / 2045454.0f;
|
|
const auto offset = track.seek_to(late_time);
|
|
XCTAssert(offset <= late_time, "Found location should be at or before sought time");
|
|
|
|
const auto difference = late_time - offset;
|
|
XCTAssert(difference >= 0.0 && difference < 0.005, "Next event should occur soon");
|
|
|
|
XCTAssert(offset >= 0.0 && offset < 0.5, "Next event should occur soon");
|
|
|
|
auto next_event = track.get_next_event();
|
|
double next_event_duration = next_event.length.get<double>();
|
|
XCTAssert(next_event_duration >= 0.0 && next_event_duration < 0.005, "Next event should occur soon");
|
|
}
|
|
|
|
@end
|