TEST(AtomicVector, write) {
AtomicVector<int> vec;
Refcount<int> rc;
// Some single-threaded write tests.
bool sawExc = false;
try {
vec.write(1, 666); // Past end of vector
} catch(runtime_error& re) {
sawExc = true;
}
ASSERT_EQ(sawExc, true);
// Append a few.
const int N = 17;
const int M = 1000;
for (int i = 1; i < M; i++) {
ASSERT_EQ(rc.get(i, true), 0);
}
for (int i = 0; i < N; i++) {
vec.append(3 * i + 1);
}
for (int i = 0; i < N; i++) {
ASSERT_EQ(rc.get(3 * i + 1), 1);
}
for (int i = 0; i < M; i++) {
auto idx = i % N;
vec.write(idx, i + 1);
}
for (int i = 0; i < N; i++) {
auto val = vec.read(i);
rc.dec(val);
ASSERT_EQ(rc.get(val), 1);
}
}
TEST(AtomicVector, mpRefcount) {
Refcount<int> rc;
// Test refcount reasoning.
for (int i = 0; i < 12; i++) {
assert(rc.get(1, true) == 0);
AtomicVector<int> lval;
auto numThreads = mptest([&](int idx) {
lval.append(1);
});
ASSERT_EQ(lval.size(), numThreads);
assert(rc.get(1) == numThreads);
(void) mptest([&](int idx) {
lval.write(idx, idx + 1);
});
for (int i = 0; i < numThreads; i++) {
ASSERT_EQ(rc.get(i + 1), 1);
}
}
rc.assertClear();
}