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CLK/OSBindings/Mac/Clock SignalTests/ArrayBuilderTests.mm
2018-05-13 15:19:52 -04:00

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//
// ArrayBuilderTests.m
// Clock Signal
//
// Created by Thomas Harte on 19/11/2016.
// Copyright 2016 Thomas Harte. All rights reserved.
//
#import <XCTest/XCTest.h>
#include "ArrayBuilder.hpp"
static NSData *inputData, *outputData;
static void setData(bool is_input, uint8_t *data, size_t size)
{
NSData *dataObject = [NSData dataWithBytes:data length:size];
if(is_input) inputData = dataObject; else outputData = dataObject;
}
@interface ArrayBuilderTests : XCTestCase
@end
@implementation ArrayBuilderTests
+ (void)setUp
{
inputData = nil;
outputData = nil;
}
- (void)assertMonotonicForInputSize:(size_t)inputSize outputSize:(size_t)outputSize
{
XCTAssert(inputData != nil, @"Should have received some input data");
XCTAssert(outputData != nil, @"Should have received some output data");
XCTAssert(inputData.length == inputSize, @"Input data should be %lu bytes long, was %lu", inputSize, (unsigned long)inputData.length);
XCTAssert(outputData.length == outputSize, @"Output data should be %lu bytes long, was %lu", outputSize, (unsigned long)outputData.length);
if(inputData.length == inputSize && outputData.length == outputSize)
{
uint8_t *input = (uint8_t *)inputData.bytes;
uint8_t *output = (uint8_t *)outputData.bytes;
for(int c = 0; c < inputSize; c++) XCTAssert(input[c] == c, @"Input item %d should be %d, was %d", c, c, input[c]);
for(int c = 0; c < outputSize; c++) XCTAssert(output[c] == c + 0x80, @"Output item %d should be %d, was %d", c, c+0x80, output[c]);
}
}
- (std::function<void(uint8_t *input, size_t input_size, uint8_t *output, size_t output_size)>)emptyFlushFunction
{
return [=] (uint8_t *input, size_t input_size, uint8_t *output, size_t output_size) {};
}
- (void)testSingleWriteSingleFlush
{
Outputs::CRT::ArrayBuilder arrayBuilder(200, 100, setData);
uint8_t *input = arrayBuilder.get_input_storage(5);
uint8_t *output = arrayBuilder.get_output_storage(3);
for(int c = 0; c < 5; c++) input[c] = c;
for(int c = 0; c < 3; c++) output[c] = c + 0x80;
arrayBuilder.flush(self.emptyFlushFunction);
arrayBuilder.submit();
[self assertMonotonicForInputSize:5 outputSize:3];
}
- (void)testDoubleWriteSingleFlush
{
Outputs::CRT::ArrayBuilder arrayBuilder(200, 100, setData);
uint8_t *input;
uint8_t *output;
input = arrayBuilder.get_input_storage(2);
output = arrayBuilder.get_output_storage(2);
for(int c = 0; c < 2; c++) input[c] = c;
for(int c = 0; c < 2; c++) output[c] = c + 0x80;
input = arrayBuilder.get_input_storage(2);
output = arrayBuilder.get_output_storage(2);
for(int c = 0; c < 2; c++) input[c] = c+2;
for(int c = 0; c < 2; c++) output[c] = c+2 + 0x80;
arrayBuilder.flush(self.emptyFlushFunction);
arrayBuilder.submit();
[self assertMonotonicForInputSize:4 outputSize:4];
}
- (void)testSubmitWithoutFlush
{
Outputs::CRT::ArrayBuilder arrayBuilder(200, 100, setData);
arrayBuilder.get_input_storage(5);
arrayBuilder.get_input_storage(8);
arrayBuilder.get_output_storage(6);
arrayBuilder.get_input_storage(12);
arrayBuilder.get_output_storage(3);
arrayBuilder.submit();
XCTAssert(inputData.length == 0, @"No input data should have been received; %lu bytes were received", (unsigned long)inputData.length);
XCTAssert(outputData.length == 0, @"No output data should have been received; %lu bytes were received", (unsigned long)outputData.length);
arrayBuilder.flush(self.emptyFlushFunction);
arrayBuilder.submit();
XCTAssert(inputData.length == 25, @"All input data should have been received; %lu bytes were received", (unsigned long)inputData.length);
XCTAssert(outputData.length == 9, @"All output data should have been received; %lu bytes were received", (unsigned long)outputData.length);
}
- (void)testSubmitContinuity
{
Outputs::CRT::ArrayBuilder arrayBuilder(200, 100, setData);
arrayBuilder.get_input_storage(5);
arrayBuilder.get_output_storage(5);
arrayBuilder.flush(self.emptyFlushFunction);
uint8_t *input = arrayBuilder.get_input_storage(5);
uint8_t *output = arrayBuilder.get_output_storage(5);
arrayBuilder.submit();
for(int c = 0; c < 5; c++) input[c] = c;
for(int c = 0; c < 5; c++) output[c] = c + 0x80;
arrayBuilder.flush(self.emptyFlushFunction);
arrayBuilder.submit();
[self assertMonotonicForInputSize:5 outputSize:5];
}
@end