scsl/include/sctest/SimpleSuite.h

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///
/// \file SimpleSuite.h
/// \author K. Isom <kyle@imap.cc>
/// \date 2017-06-05
/// \brief Defines a simple unit testing framework.
///
/// Copyright 2017 K. Isom <kyle@imap.cc>
///
/// Permission to use, copy, modify, and/or distribute this software for
/// any purpose with or without fee is hereby granted, provided that
/// the above copyright notice and this permission notice appear in all /// copies.
///
/// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
/// WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
/// WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
/// AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
/// DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA
/// OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
/// TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
/// PERFORMANCE OF THIS SOFTWARE.
///
#ifndef SCTEST_SIMPLESUITE_H
#define SCTEST_SIMPLESUITE_H
#include <functional>
#include <string>
#include <vector>
#include <sctest/Report.h>
namespace sctest {
/// \brief UnitTest describes a single unit test. It is a predicate:
/// did the test pass?
struct UnitTest {
/// What name should be shown when running tests?
std::string name;
/// This is the test function to be run.
std::function<bool()> test;
};
/// \brief SimpleSuite is a test-running harness for simple tests.
///
/// A simple test is defined as a test that takes no arguments and
/// returns a boolean status where true indicates the test has passed.
class SimpleSuite {
public:
SimpleSuite();
/// \brief Silence suppresses output.
void Silence();
/// \brief Define a suite setup function.
///
/// If present, this setup function is called at the start of
/// the Run method, before tests are run. It should be a
/// predicate: if it returns false, tests automatically fail.
void Setup(std::function<bool(void)> setupFn) { fnSetup = setupFn; }
/// \brief Define a teardown function.
///
/// If present, this teardown function is called at the end of
/// the Run method, after all tests have run.
void Teardown(std::function<bool(void)> teardownFn) { fnTeardown = teardownFn; }
/// \brief Register a new simple test.
///
/// \param label The text that will identify test when
/// running.
/// \param test This test should return true if the test has
/// passed.
void AddTest(std::string label, std::function<bool(void)> test);
/// \brief Register a test that is expected to return false.
///
/// \param label The text that will identify test when
/// running.
/// \param test This test should return false if the test has
/// passed.
void AddFailingTest(std::string label, std::function<bool(void)> test);
/// \brief Run all the registered tests.
///
/// \return True if all tests have passed.
bool Run();
/// Reporting methods.
/// \brief Reset clears the report statistics.
///
/// Reset will preserve the setup and teardown functions, just
/// resetting the suite's internal state.
void Reset();
/// \brief
// HasRun returns true if a report is ready.
bool HasRun() const;
// Report returns a Report.
Report GetReport(void);
private:
bool quiet;
std::function<bool(void)> fnSetup, fnTeardown;
std::vector<UnitTest> tests;
// Report functions.
Report report;
bool hasRun; // Have the tests been run yet?
bool hasPassed;
};
std::ostream& operator<<(std::ostream& os, SimpleSuite &suite);
} // namespace sctest
#endif