Files
allwpilib/wpilibc/wpilibC++IntegrationTests/src/AnalogLoopTest.cpp
Tyler Veness 2bf3b6bed4 Replaced WPILib.h includes in integration tests with the minimum required subheaders to improve compilation times
I ran the benchmark in a tmpfs with an Intel Core i5-2430M. I ran it three times for each combination of build invokation and source tree.

First, I tested "make". For master (eb7d55f), I measured an average of 42.751s with a standard deviation of 0.372s. For this commit, I measured an average of 33.394s with a standard deviation of 0.140s. There was a 9.356s, or 22%, improvement with a total error of 1.3%.

Second, I tested "make -j4". For master (eb7d55f), I measured an average of 21.723s with a standard deviation of 0.158s. For this commit, I measured an average of 16.823s with a standard deviation of 0.340s. There was a 4.900s, or 23%, improvement with a total error of 2.7%.

Change-Id: Idb3adce62ed8ef449360c6583896b6da3565cf58
2015-08-13 11:31:46 -07:00

129 lines
3.7 KiB
C++

/*----------------------------------------------------------------------------*/
/* Copyright (c) FIRST 2014. All Rights Reserved. */
/* Open Source Software - may be modified and shared by FRC teams. The code */
/* must be accompanied by the FIRST BSD license file in the root directory of */
/* the project. */
/*----------------------------------------------------------------------------*/
#include <AnalogInput.h>
#include <AnalogOutput.h>
#include <AnalogTrigger.h>
#include <Counter.h>
#include <Timer.h>
#include "gtest/gtest.h"
#include "TestBench.h"
static const double kDelayTime = 0.01;
/**
* A fixture with an analog input and an analog output wired together
*/
class AnalogLoopTest : public testing::Test {
protected:
AnalogInput *m_input;
AnalogOutput *m_output;
virtual void SetUp() override {
m_input = new AnalogInput(TestBench::kFakeAnalogOutputChannel);
m_output = new AnalogOutput(TestBench::kAnalogOutputChannel);
}
virtual void TearDown() override {
delete m_input;
delete m_output;
}
};
/**
* Test analog inputs and outputs by setting one and making sure the other
* matches.
*/
TEST_F(AnalogLoopTest, AnalogInputWorks) {
// Set the output voltage and check if the input measures the same voltage
for (int i = 0; i < 50; i++) {
m_output->SetVoltage(i / 10.0f);
Wait(kDelayTime);
EXPECT_NEAR(m_output->GetVoltage(), m_input->GetVoltage(), 0.01f);
}
}
/**
* Test if we can use an analog trigger to check if the output is within a
* range correctly.
*/
TEST_F(AnalogLoopTest, AnalogTriggerWorks) {
AnalogTrigger trigger(m_input);
trigger.SetLimitsVoltage(2.0f, 3.0f);
m_output->SetVoltage(1.0f);
Wait(kDelayTime);
EXPECT_FALSE(trigger.GetInWindow())
<< "Analog trigger is in the window (2V, 3V)";
EXPECT_FALSE(trigger.GetTriggerState()) << "Analog trigger is on";
m_output->SetVoltage(2.5f);
Wait(kDelayTime);
EXPECT_TRUE(trigger.GetInWindow())
<< "Analog trigger is not in the window (2V, 3V)";
EXPECT_FALSE(trigger.GetTriggerState()) << "Analog trigger is on";
m_output->SetVoltage(4.0f);
Wait(kDelayTime);
EXPECT_FALSE(trigger.GetInWindow())
<< "Analog trigger is in the window (2V, 3V)";
EXPECT_TRUE(trigger.GetTriggerState()) << "Analog trigger is not on";
}
/**
* Test if we can count the right number of ticks from an analog trigger with
* a counter.
*/
TEST_F(AnalogLoopTest, AnalogTriggerCounterWorks) {
AnalogTrigger trigger(m_input);
trigger.SetLimitsVoltage(2.0f, 3.0f);
Counter counter(trigger);
// Turn the analog output low and high 50 times
for (int i = 0; i < 50; i++) {
m_output->SetVoltage(1.0);
Wait(kDelayTime);
m_output->SetVoltage(4.0);
Wait(kDelayTime);
}
// The counter should be 50
EXPECT_EQ(50, counter.Get())
<< "Analog trigger counter did not count 50 ticks";
}
static void InterruptHandler(uint32_t interruptAssertedMask, void *param) {
*(int *)param = 12345;
}
TEST_F(AnalogLoopTest, AsynchronusInterruptWorks) {
int param = 0;
AnalogTrigger trigger(m_input);
trigger.SetLimitsVoltage(2.0f, 3.0f);
// Given an interrupt handler that sets an int to 12345
std::shared_ptr<AnalogTriggerOutput> triggerOutput = trigger.CreateOutput(kState);
triggerOutput->RequestInterrupts(InterruptHandler, &param);
triggerOutput->EnableInterrupts();
// If the analog output moves from below to above the window
m_output->SetVoltage(0.0);
Wait(kDelayTime);
m_output->SetVoltage(5.0);
triggerOutput->CancelInterrupts();
// Then the int should be 12345
Wait(kDelayTime);
EXPECT_EQ(12345, param) << "The interrupt did not run.";
}