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esphome/tests/components/core/test_blocking_scope.cpp
T

104 lines
3.3 KiB
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#include <gtest/gtest.h>
#include "esphome/core/application.h"
#include "esphome/core/hal.h"
namespace esphome {
// The scope must push the pass start forward by the time it covers and by
// nothing else, so the blocking guard sees only the work outside it
TEST(UnavoidableBlockingScope, ExcludesItsDurationFromThePass) {
const uint32_t pass_start = millis();
LoopBlockingGuard guard(nullptr, nullptr, pass_start);
ASSERT_EQ(App.get_loop_component_start_time(), pass_start);
const uint32_t before = millis();
{
UnavoidableBlockingScope scope;
delay(30);
}
const uint32_t excused = millis() - before;
const uint32_t moved = App.get_loop_component_start_time() - pass_start;
EXPECT_GE(moved, 30u);
EXPECT_LE(moved, excused);
}
TEST(UnavoidableBlockingScope, ZeroLengthScopeLeavesTheStartAlone) {
const uint32_t pass_start = millis();
LoopBlockingGuard guard(nullptr, nullptr, pass_start);
const uint32_t before = millis();
{ UnavoidableBlockingScope scope; }
EXPECT_LE(App.get_loop_component_start_time() - pass_start, millis() - before);
}
// Nested scopes leave out the outer span exactly once, and never move the
// start past now
TEST(UnavoidableBlockingScope, NestedScopesExcuseTheOuterSpanOnce) {
const uint32_t pass_start = millis();
LoopBlockingGuard guard(nullptr, nullptr, pass_start);
const uint32_t before = millis();
{
UnavoidableBlockingScope outer;
{
UnavoidableBlockingScope inner;
delay(30);
}
delay(5);
}
const uint32_t excused = millis() - before;
const uint32_t moved = App.get_loop_component_start_time() - pass_start;
EXPECT_GE(moved, 35u);
EXPECT_LE(moved, excused);
EXPECT_GE(static_cast<int32_t>(millis() - App.get_loop_component_start_time()), 0);
}
namespace {
// Static: the guard publishes the component to App and nothing clears it.
// One instance per test, since a ratcheted threshold is permanent
class DummyComponent : public Component {};
DummyComponent &blocking_test_component(size_t index) {
static DummyComponent components[2];
return components[index];
}
} // namespace
// The excused stretch must neither warn nor ratchet the component's threshold
TEST(UnavoidableBlockingScope, ExcusedStretchDoesNotRatchetTheThreshold) {
DummyComponent &component = blocking_test_component(0);
uint32_t threshold_before = 0;
component.should_warn_of_blocking(0, threshold_before);
{
LoopBlockingGuard guard(&component, nullptr, millis());
{
UnavoidableBlockingScope scope;
delay(WARN_IF_BLOCKING_OVER_CS * 10U + 20);
}
guard.finish();
}
uint32_t threshold_after = 0;
component.should_warn_of_blocking(0, threshold_after);
EXPECT_EQ(threshold_after, threshold_before);
}
// Work outside the scope is still measured and still ratchets
TEST(UnavoidableBlockingScope, WorkOutsideTheScopeStillRatchetsTheThreshold) {
DummyComponent &component = blocking_test_component(1);
uint32_t threshold_before = 0;
component.should_warn_of_blocking(0, threshold_before);
{
LoopBlockingGuard guard(&component, nullptr, millis());
{
UnavoidableBlockingScope scope;
delay(20);
}
delay(WARN_IF_BLOCKING_OVER_CS * 10U + 20);
guard.finish();
}
uint32_t threshold_after = 0;
component.should_warn_of_blocking(0, threshold_after);
EXPECT_GT(threshold_after, threshold_before);
}
} // namespace esphome