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// SPDX-License-Identifier: GPL-2.0-or-later
#include <functional>
#include <optional>
#include <cmath>
#include <gtest/gtest.h>
#include "async/progress.h"
#include "async/progress-splitter.h"
using namespace Inkscape::Async;
TEST(ProgressTest, subprogress)
{
class ProgressMock final
: public Progress<double>
{
public:
mutable bool k_called;
double p_arg_saved;
bool ret;
void reset(bool ret_)
{
k_called = false;
p_arg_saved = -1.0;
ret = ret_;
}
protected:
bool _keepgoing() const override { k_called = true; return ret; }
bool _report(double const &progress) override { p_arg_saved = progress; return ret; }
};
auto a = ProgressMock();
auto b = SubProgress(a, 0.25, 0.5);
auto c = SubProgress(b, 0.1, 0.2);
for (bool ret : { true, false }) {
for (double progress = 0.0; progress < 1.0; progress += 0.3) {
a.reset(ret);
EXPECT_EQ(c.report(progress), ret);
EXPECT_NEAR(a.p_arg_saved, 0.25 + 0.5 * (0.1 + 0.2 * progress), 1e-5);
EXPECT_FALSE(a.k_called);
}
}
for (bool ret : { true, false }) {
a.reset(ret);
EXPECT_EQ(c.keepgoing(), ret);
EXPECT_EQ(a.p_arg_saved, -1.0);
EXPECT_TRUE(a.k_called);
}
a.reset(false);
EXPECT_THROW(c.report_or_throw(0.5), CancelledException);
EXPECT_THROW(c.throw_if_cancelled(), CancelledException);
a.reset(true);
EXPECT_NO_THROW(c.report_or_throw(0.5));
EXPECT_NO_THROW(c.throw_if_cancelled());
}
TEST(ProgressTest, throttler)
{
class ProgressMock final
: public Progress<double>
{
public:
int calls = 0;
double saved = 0.0;
protected:
bool _keepgoing() const override { return true; }
bool _report(double const &progress) override { saved = progress; calls++; return true; }
};
double constexpr step = 0.1;
auto a = ProgressMock();
auto b = ProgressStepThrottler(a, step);
int constexpr N = 1000;
for (int i = 0; i < N; i++) {
double progress = (double)i / N;
b.report(progress);
ASSERT_LE(std::abs(progress - a.saved), 1.1 * step);
}
ASSERT_GE(a.calls, 9);
ASSERT_LE(a.calls, 11);
}
TEST(ProgressTest, splitter)
{
class ProgressMock final
: public Progress<double>
{
public:
double saved;
protected:
bool _keepgoing() const override { return true; }
bool _report(double const &progress) override { saved = progress; return true; }
};
auto a = ProgressMock();
std::optional<SubProgress<double>> x, y, z;
auto reset = [&] {
a.saved = -1.0;
x = y = z = {};
};
reset();
ProgressSplitter(a)
.add(x, 0.25)
.add(y, 0.5)
.add(z, 0.25);
ASSERT_TRUE(x);
ASSERT_TRUE(y);
ASSERT_TRUE(z);
x->report(0.5); EXPECT_NEAR(a.saved, 0.125, 1e-5);
y->report(0.5); EXPECT_NEAR(a.saved, 0.5 , 1e-5);
z->report(0.5); EXPECT_NEAR(a.saved, 0.875, 1e-5);
reset();
ProgressSplitter(a)
.add_if(x, 0.25, true)
.add_if(y, 0.5, false)
.add_if(z, 0.25, true);
ASSERT_TRUE(x);
ASSERT_FALSE(y);
ASSERT_TRUE(z);
x->report(0.5); EXPECT_NEAR(a.saved, 0.25, 1e-5);
z->report(0.5); EXPECT_NEAR(a.saved, 0.75, 1e-5);
}
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