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test_coroutines.cc
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#include "coroutine.h"
#include <gtest/gtest.h>
#include <fcntl.h>
#include <unistd.h>
TEST(Coroutines, Simple) {
co::CoroutineScheduler scheduler;
bool co1_run = false;
bool co2_run = false;
co::Coroutine co1(scheduler,
[&co1_run](co::Coroutine *c) { co1_run = true; });
co::Coroutine co2(scheduler,
[&co2_run](co::Coroutine *c) { co2_run = true; });
scheduler.Run();
ASSERT_TRUE(co1_run);
ASSERT_TRUE(co2_run);
}
TEST(Coroutines, SimpleRef) {
co::CoroutineScheduler scheduler;
bool co1_run = false;
bool co2_run = false;
co::Coroutine co1(scheduler,
[&co1_run](const co::Coroutine &c) { co1_run = true; });
co::Coroutine co2(scheduler,
[&co2_run](const co::Coroutine &c) { co2_run = true; });
scheduler.Run();
ASSERT_TRUE(co1_run);
ASSERT_TRUE(co2_run);
}
TEST(Coroutines, Yield) {
co::CoroutineScheduler scheduler;
bool co1_run = false;
bool co2_run = false;
int co1_yields = 0;
int co2_yields = 0;
co::Coroutine co1(scheduler, [&co1_run, &co1_yields](co::Coroutine *c) {
co1_run = true;
c->Yield();
co1_yields++;
c->Yield();
co1_yields++;
});
co::Coroutine co2(scheduler, [&co2_run, &co2_yields](co::Coroutine *c) {
co2_run = true;
c->Yield();
co2_yields++;
c->Yield();
co2_yields++;
});
scheduler.Run();
ASSERT_TRUE(co1_run);
ASSERT_TRUE(co2_run);
ASSERT_EQ(2, co1_yields);
ASSERT_EQ(2, co2_yields);
}
TEST(Coroutines, YieldRef) {
co::CoroutineScheduler scheduler;
bool co1_run = false;
bool co2_run = false;
int co1_yields = 0;
int co2_yields = 0;
co::Coroutine co1(scheduler, [&co1_run, &co1_yields](const co::Coroutine &c) {
co1_run = true;
c.Yield();
co1_yields++;
c.Yield();
co1_yields++;
});
co::Coroutine co2(scheduler, [&co2_run, &co2_yields](const co::Coroutine &c) {
co2_run = true;
c.Yield();
co2_yields++;
c.Yield();
co2_yields++;
});
scheduler.Run();
ASSERT_TRUE(co1_run);
ASSERT_TRUE(co2_run);
ASSERT_EQ(2, co1_yields);
ASSERT_EQ(2, co2_yields);
}
TEST(Coroutines, Wait) {
co::CoroutineScheduler scheduler;
bool co1_run = false;
bool co2_run = false;
int pipe1[2];
int pipe2[2];
pipe(pipe1);
pipe(pipe2);
int co1_value = 0;
int co2_value = 0;
bool co1_wokeup = false;
bool co2_wokeup = false;
co::Coroutine co1(scheduler, [&co1_run, pipe1, pipe2, &co1_value,
&co1_wokeup](co::Coroutine *c) {
co1_run = true;
char buf[1] = {1};
(void)write(pipe2[1], buf, 1);
co1_value = c->Wait(pipe1[0]);
co1_wokeup = true;
});
co::Coroutine co2(scheduler, [&co2_run, pipe1, pipe2, &co2_value,
&co2_wokeup](co::Coroutine *c) {
co2_run = true;
co2_value = c->Wait(pipe2[0]);
co2_wokeup = true;
char buf[1] = {2};
(void)write(pipe1[1], buf, 1);
});
scheduler.Run();
ASSERT_TRUE(co1_run);
ASSERT_TRUE(co2_run);
ASSERT_TRUE(co1_wokeup);
ASSERT_TRUE(co2_wokeup);
ASSERT_EQ(pipe1[0], co1_value);
ASSERT_EQ(pipe2[0], co2_value);
}
TEST(Coroutines, WaitRef) {
co::CoroutineScheduler scheduler;
bool co1_run = false;
bool co2_run = false;
int pipe1[2];
int pipe2[2];
pipe(pipe1);
pipe(pipe2);
int co1_value = 0;
int co2_value = 0;
bool co1_wokeup = false;
bool co2_wokeup = false;
co::Coroutine co1(scheduler, [&co1_run, pipe1, pipe2, &co1_value,
&co1_wokeup](const co::Coroutine &c) {
co1_run = true;
char buf[1] = {1};
(void)write(pipe2[1], buf, 1);
co1_value = c.Wait(pipe1[0]);
co1_wokeup = true;
});
co::Coroutine co2(scheduler, [&co2_run, pipe1, pipe2, &co2_value,
&co2_wokeup](const co::Coroutine &c) {
co2_run = true;
co2_value = c.Wait(pipe2[0]);
co2_wokeup = true;
char buf[1] = {2};
(void)write(pipe1[1], buf, 1);
});
scheduler.Run();
ASSERT_TRUE(co1_run);
ASSERT_TRUE(co2_run);
ASSERT_TRUE(co1_wokeup);
ASSERT_TRUE(co2_wokeup);
ASSERT_EQ(pipe1[0], co1_value);
ASSERT_EQ(pipe2[0], co2_value);
}
TEST(Coroutines, Timeout) {
co::CoroutineScheduler scheduler;
bool co1_run = false;
bool co2_run = false;
int pipe1[2];
int pipe2[2];
pipe(pipe1);
pipe(pipe2);
int co1_value = 0;
int co2_value = 0;
bool co1_wokeup = false;
bool co2_wokeup = false;
co::Coroutine co1(
scheduler, [&co1_run, pipe1, &co1_value, &co1_wokeup](co::Coroutine *c) {
co1_run = true;
co1_value = c->Wait(pipe1[0], POLLIN, 1000 * 1000 * 1000);
co1_wokeup = true;
});
co::Coroutine co2(
scheduler, [&co2_run, pipe2, &co2_value, &co2_wokeup](co::Coroutine *c) {
co2_run = true;
co2_value = c->Wait(pipe2[0], POLLIN, 1000 * 1000 * 1000);
co2_wokeup = true;
});
scheduler.Run();
ASSERT_TRUE(co1_run);
ASSERT_TRUE(co2_run);
ASSERT_TRUE(co1_wokeup);
ASSERT_TRUE(co2_wokeup);
ASSERT_EQ(-1, co1_value);
ASSERT_EQ(-1, co2_value);
}
TEST(Coroutines, TimeoutRef) {
co::CoroutineScheduler scheduler;
bool co1_run = false;
bool co2_run = false;
int pipe1[2];
int pipe2[2];
pipe(pipe1);
pipe(pipe2);
int co1_value = 0;
int co2_value = 0;
bool co1_wokeup = false;
bool co2_wokeup = false;
co::Coroutine co1(scheduler, [&co1_run, pipe1, &co1_value,
&co1_wokeup](const co::Coroutine &c) {
co1_run = true;
co1_value = c.Wait(pipe1[0], POLLIN, 1000 * 1000 * 1000);
co1_wokeup = true;
});
co::Coroutine co2(scheduler, [&co2_run, pipe2, &co2_value,
&co2_wokeup](const co::Coroutine &c) {
co2_run = true;
co2_value = c.Wait(pipe2[0], POLLIN, 1000 * 1000 * 1000);
co2_wokeup = true;
});
scheduler.Run();
ASSERT_TRUE(co1_run);
ASSERT_TRUE(co2_run);
ASSERT_TRUE(co1_wokeup);
ASSERT_TRUE(co2_wokeup);
ASSERT_EQ(-1, co1_value);
ASSERT_EQ(-1, co2_value);
}
TEST(Coroutines, Generator) {
co::CoroutineScheduler scheduler;
int factorial = 1;
co::Coroutine co(scheduler, [&factorial](co::Coroutine *c) {
co::Generator<int> generator(c->Scheduler(), [](co::Generator<int> *c) {
for (int i = 1; i < 10; i++) {
c->YieldValue(i);
}
});
while (generator.IsAlive()) {
int value = c->Call(generator);
if (generator.IsAlive()) {
factorial *= value;
}
}
});
scheduler.Run();
ASSERT_EQ(9 * 8 * 7 * 6 * 5 * 4 * 3 * 2, factorial);
}
TEST(Coroutines, GeneratorRef) {
co::CoroutineScheduler scheduler;
int factorial = 1;
co::Coroutine co(scheduler, [&factorial](const co::Coroutine &c) {
co::Generator<int> generator(c.Scheduler(),
[](const co::Generator<int> &c) {
for (int i = 1; i < 10; i++) {
c.YieldValue(i);
}
});
while (generator.IsAlive()) {
int value = c.Call(generator);
if (generator.IsAlive()) {
factorial *= value;
}
}
});
scheduler.Run();
ASSERT_EQ(9 * 8 * 7 * 6 * 5 * 4 * 3 * 2, factorial);
}