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-rw-r--r--libs/utils/tests/PollLoop_test.cpp370
1 files changed, 0 insertions, 370 deletions
diff --git a/libs/utils/tests/PollLoop_test.cpp b/libs/utils/tests/PollLoop_test.cpp
deleted file mode 100644
index 02f1808..0000000
--- a/libs/utils/tests/PollLoop_test.cpp
+++ /dev/null
@@ -1,370 +0,0 @@
-//
-// Copyright 2010 The Android Open Source Project
-//
-
-#include <utils/PollLoop.h>
-#include <utils/Timers.h>
-#include <utils/StopWatch.h>
-#include <gtest/gtest.h>
-#include <unistd.h>
-#include <time.h>
-
-#include "TestHelpers.h"
-
-// # of milliseconds to fudge stopwatch measurements
-#define TIMING_TOLERANCE_MS 25
-
-namespace android {
-
-class DelayedWake : public DelayedTask {
- sp<PollLoop> mPollLoop;
-
-public:
- DelayedWake(int delayMillis, const sp<PollLoop> pollLoop) :
- DelayedTask(delayMillis), mPollLoop(pollLoop) {
- }
-
-protected:
- virtual void doTask() {
- mPollLoop->wake();
- }
-};
-
-class DelayedWriteSignal : public DelayedTask {
- Pipe* mPipe;
-
-public:
- DelayedWriteSignal(int delayMillis, Pipe* pipe) :
- DelayedTask(delayMillis), mPipe(pipe) {
- }
-
-protected:
- virtual void doTask() {
- mPipe->writeSignal();
- }
-};
-
-class CallbackHandler {
-public:
- void setCallback(const sp<PollLoop>& pollLoop, int fd, int events) {
- pollLoop->setCallback(fd, events, staticHandler, this);
- }
-
-protected:
- virtual ~CallbackHandler() { }
-
- virtual bool handler(int fd, int events) = 0;
-
-private:
- static bool staticHandler(int fd, int events, void* data) {
- return static_cast<CallbackHandler*>(data)->handler(fd, events);
- }
-};
-
-class StubCallbackHandler : public CallbackHandler {
-public:
- bool nextResult;
- int callbackCount;
-
- int fd;
- int events;
-
- StubCallbackHandler(bool nextResult) : nextResult(nextResult),
- callbackCount(0), fd(-1), events(-1) {
- }
-
-protected:
- virtual bool handler(int fd, int events) {
- callbackCount += 1;
- this->fd = fd;
- this->events = events;
- return nextResult;
- }
-};
-
-class PollLoopTest : public testing::Test {
-protected:
- sp<PollLoop> mPollLoop;
-
- virtual void SetUp() {
- mPollLoop = new PollLoop(false);
- }
-
- virtual void TearDown() {
- mPollLoop.clear();
- }
-};
-
-
-TEST_F(PollLoopTest, PollOnce_WhenNonZeroTimeoutAndNotAwoken_WaitsForTimeoutAndReturnsFalse) {
- StopWatch stopWatch("pollOnce");
- int32_t result = mPollLoop->pollOnce(100);
- int32_t elapsedMillis = ns2ms(stopWatch.elapsedTime());
-
- EXPECT_NEAR(100, elapsedMillis, TIMING_TOLERANCE_MS)
- << "elapsed time should approx. equal timeout";
- EXPECT_EQ(result, PollLoop::POLL_TIMEOUT)
- << "pollOnce result should be POLL_TIMEOUT";
-}
-
-TEST_F(PollLoopTest, PollOnce_WhenNonZeroTimeoutAndAwokenBeforeWaiting_ImmediatelyReturnsTrue) {
- mPollLoop->wake();
-
- StopWatch stopWatch("pollOnce");
- int32_t result = mPollLoop->pollOnce(1000);
- int32_t elapsedMillis = ns2ms(stopWatch.elapsedTime());
-
- EXPECT_NEAR(0, elapsedMillis, TIMING_TOLERANCE_MS)
- << "elapsed time should approx. zero because wake() was called before waiting";
- EXPECT_EQ(result, PollLoop::POLL_CALLBACK)
- << "pollOnce result should be POLL_CALLBACK because loop was awoken";
-}
-
-TEST_F(PollLoopTest, PollOnce_WhenNonZeroTimeoutAndAwokenWhileWaiting_PromptlyReturnsTrue) {
- sp<DelayedWake> delayedWake = new DelayedWake(100, mPollLoop);
- delayedWake->run();
-
- StopWatch stopWatch("pollOnce");
- int32_t result = mPollLoop->pollOnce(1000);
- int32_t elapsedMillis = ns2ms(stopWatch.elapsedTime());
-
- EXPECT_NEAR(100, elapsedMillis, TIMING_TOLERANCE_MS)
- << "elapsed time should approx. equal wake delay";
- EXPECT_EQ(result, PollLoop::POLL_CALLBACK)
- << "pollOnce result should be POLL_CALLBACK because loop was awoken";
-}
-
-TEST_F(PollLoopTest, PollOnce_WhenZeroTimeoutAndNoRegisteredFDs_ImmediatelyReturnsFalse) {
- StopWatch stopWatch("pollOnce");
- int32_t result = mPollLoop->pollOnce(0);
- int32_t elapsedMillis = ns2ms(stopWatch.elapsedTime());
-
- EXPECT_NEAR(0, elapsedMillis, TIMING_TOLERANCE_MS)
- << "elapsed time should be approx. zero";
- EXPECT_EQ(result, PollLoop::POLL_TIMEOUT)
- << "pollOnce result should be POLL_TIMEOUT";
-}
-
-TEST_F(PollLoopTest, PollOnce_WhenZeroTimeoutAndNoSignalledFDs_ImmediatelyReturnsFalse) {
- Pipe pipe;
- StubCallbackHandler handler(true);
-
- handler.setCallback(mPollLoop, pipe.receiveFd, POLL_IN);
-
- StopWatch stopWatch("pollOnce");
- int32_t result = mPollLoop->pollOnce(0);
- int32_t elapsedMillis = ns2ms(stopWatch.elapsedTime());
-
- EXPECT_NEAR(0, elapsedMillis, TIMING_TOLERANCE_MS)
- << "elapsed time should be approx. zero";
- EXPECT_EQ(result, PollLoop::POLL_TIMEOUT)
- << "pollOnce result should be POLL_TIMEOUT";
- EXPECT_EQ(0, handler.callbackCount)
- << "callback should not have been invoked because FD was not signalled";
-}
-
-TEST_F(PollLoopTest, PollOnce_WhenZeroTimeoutAndSignalledFD_ImmediatelyInvokesCallbackAndReturnsTrue) {
- Pipe pipe;
- StubCallbackHandler handler(true);
-
- ASSERT_EQ(OK, pipe.writeSignal());
- handler.setCallback(mPollLoop, pipe.receiveFd, POLL_IN);
-
- StopWatch stopWatch("pollOnce");
- int32_t result = mPollLoop->pollOnce(0);
- int32_t elapsedMillis = ns2ms(stopWatch.elapsedTime());
-
- EXPECT_NEAR(0, elapsedMillis, TIMING_TOLERANCE_MS)
- << "elapsed time should be approx. zero";
- EXPECT_EQ(result, PollLoop::POLL_CALLBACK)
- << "pollOnce result should be POLL_CALLBACK because FD was signalled";
- EXPECT_EQ(1, handler.callbackCount)
- << "callback should be invoked exactly once";
- EXPECT_EQ(pipe.receiveFd, handler.fd)
- << "callback should have received pipe fd as parameter";
- EXPECT_EQ(POLL_IN, handler.events)
- << "callback should have received POLL_IN as events";
-}
-
-TEST_F(PollLoopTest, PollOnce_WhenNonZeroTimeoutAndNoSignalledFDs_WaitsForTimeoutAndReturnsFalse) {
- Pipe pipe;
- StubCallbackHandler handler(true);
-
- handler.setCallback(mPollLoop, pipe.receiveFd, POLL_IN);
-
- StopWatch stopWatch("pollOnce");
- int32_t result = mPollLoop->pollOnce(100);
- int32_t elapsedMillis = ns2ms(stopWatch.elapsedTime());
-
- EXPECT_NEAR(100, elapsedMillis, TIMING_TOLERANCE_MS)
- << "elapsed time should approx. equal timeout";
- EXPECT_EQ(result, PollLoop::POLL_TIMEOUT)
- << "pollOnce result should be POLL_TIMEOUT";
- EXPECT_EQ(0, handler.callbackCount)
- << "callback should not have been invoked because FD was not signalled";
-}
-
-TEST_F(PollLoopTest, PollOnce_WhenNonZeroTimeoutAndSignalledFDBeforeWaiting_ImmediatelyInvokesCallbackAndReturnsTrue) {
- Pipe pipe;
- StubCallbackHandler handler(true);
-
- pipe.writeSignal();
- handler.setCallback(mPollLoop, pipe.receiveFd, POLL_IN);
-
- StopWatch stopWatch("pollOnce");
- int32_t result = mPollLoop->pollOnce(100);
- int32_t elapsedMillis = ns2ms(stopWatch.elapsedTime());
-
- ASSERT_EQ(OK, pipe.readSignal())
- << "signal should actually have been written";
- EXPECT_NEAR(0, elapsedMillis, TIMING_TOLERANCE_MS)
- << "elapsed time should be approx. zero";
- EXPECT_EQ(result, PollLoop::POLL_CALLBACK)
- << "pollOnce result should be POLL_CALLBACK because FD was signalled";
- EXPECT_EQ(1, handler.callbackCount)
- << "callback should be invoked exactly once";
- EXPECT_EQ(pipe.receiveFd, handler.fd)
- << "callback should have received pipe fd as parameter";
- EXPECT_EQ(POLL_IN, handler.events)
- << "callback should have received POLL_IN as events";
-}
-
-TEST_F(PollLoopTest, PollOnce_WhenNonZeroTimeoutAndSignalledFDWhileWaiting_PromptlyInvokesCallbackAndReturnsTrue) {
- Pipe pipe;
- StubCallbackHandler handler(true);
- sp<DelayedWriteSignal> delayedWriteSignal = new DelayedWriteSignal(100, & pipe);
-
- handler.setCallback(mPollLoop, pipe.receiveFd, POLL_IN);
- delayedWriteSignal->run();
-
- StopWatch stopWatch("pollOnce");
- int32_t result = mPollLoop->pollOnce(1000);
- int32_t elapsedMillis = ns2ms(stopWatch.elapsedTime());
-
- ASSERT_EQ(OK, pipe.readSignal())
- << "signal should actually have been written";
- EXPECT_NEAR(100, elapsedMillis, TIMING_TOLERANCE_MS)
- << "elapsed time should approx. equal signal delay";
- EXPECT_EQ(result, PollLoop::POLL_CALLBACK)
- << "pollOnce result should be POLL_CALLBACK because FD was signalled";
- EXPECT_EQ(1, handler.callbackCount)
- << "callback should be invoked exactly once";
- EXPECT_EQ(pipe.receiveFd, handler.fd)
- << "callback should have received pipe fd as parameter";
- EXPECT_EQ(POLL_IN, handler.events)
- << "callback should have received POLL_IN as events";
-}
-
-TEST_F(PollLoopTest, PollOnce_WhenCallbackAddedThenRemoved_CallbackShouldNotBeInvoked) {
- Pipe pipe;
- StubCallbackHandler handler(true);
-
- handler.setCallback(mPollLoop, pipe.receiveFd, POLL_IN);
- pipe.writeSignal(); // would cause FD to be considered signalled
- mPollLoop->removeCallback(pipe.receiveFd);
-
- StopWatch stopWatch("pollOnce");
- int32_t result = mPollLoop->pollOnce(100);
- int32_t elapsedMillis = ns2ms(stopWatch.elapsedTime());
-
- ASSERT_EQ(OK, pipe.readSignal())
- << "signal should actually have been written";
- EXPECT_NEAR(100, elapsedMillis, TIMING_TOLERANCE_MS)
- << "elapsed time should approx. equal timeout because FD was no longer registered";
- EXPECT_EQ(result, PollLoop::POLL_TIMEOUT)
- << "pollOnce result should be POLL_TIMEOUT";
- EXPECT_EQ(0, handler.callbackCount)
- << "callback should not be invoked";
-}
-
-TEST_F(PollLoopTest, PollOnce_WhenCallbackReturnsFalse_CallbackShouldNotBeInvokedAgainLater) {
- Pipe pipe;
- StubCallbackHandler handler(false);
-
- handler.setCallback(mPollLoop, pipe.receiveFd, POLL_IN);
-
- // First loop: Callback is registered and FD is signalled.
- pipe.writeSignal();
-
- StopWatch stopWatch("pollOnce");
- int32_t result = mPollLoop->pollOnce(0);
- int32_t elapsedMillis = ns2ms(stopWatch.elapsedTime());
-
- ASSERT_EQ(OK, pipe.readSignal())
- << "signal should actually have been written";
- EXPECT_NEAR(0, elapsedMillis, TIMING_TOLERANCE_MS)
- << "elapsed time should approx. equal zero because FD was already signalled";
- EXPECT_EQ(result, PollLoop::POLL_CALLBACK)
- << "pollOnce result should be POLL_CALLBACK because FD was signalled";
- EXPECT_EQ(1, handler.callbackCount)
- << "callback should be invoked";
-
- // Second loop: Callback is no longer registered and FD is signalled.
- pipe.writeSignal();
-
- stopWatch.reset();
- result = mPollLoop->pollOnce(0);
- elapsedMillis = ns2ms(stopWatch.elapsedTime());
-
- ASSERT_EQ(OK, pipe.readSignal())
- << "signal should actually have been written";
- EXPECT_NEAR(0, elapsedMillis, TIMING_TOLERANCE_MS)
- << "elapsed time should approx. equal zero because timeout was zero";
- EXPECT_EQ(result, PollLoop::POLL_TIMEOUT)
- << "pollOnce result should be POLL_TIMEOUT";
- EXPECT_EQ(1, handler.callbackCount)
- << "callback should not be invoked this time";
-}
-
-TEST_F(PollLoopTest, RemoveCallback_WhenCallbackNotAdded_ReturnsFalse) {
- bool result = mPollLoop->removeCallback(1);
-
- EXPECT_FALSE(result)
- << "removeCallback should return false because FD not registered";
-}
-
-TEST_F(PollLoopTest, RemoveCallback_WhenCallbackAddedThenRemovedTwice_ReturnsTrueFirstTimeAndReturnsFalseSecondTime) {
- Pipe pipe;
- StubCallbackHandler handler(false);
- handler.setCallback(mPollLoop, pipe.receiveFd, POLL_IN);
-
- // First time.
- bool result = mPollLoop->removeCallback(pipe.receiveFd);
-
- EXPECT_TRUE(result)
- << "removeCallback should return true first time because FD was registered";
-
- // Second time.
- result = mPollLoop->removeCallback(pipe.receiveFd);
-
- EXPECT_FALSE(result)
- << "removeCallback should return false second time because FD was no longer registered";
-}
-
-TEST_F(PollLoopTest, PollOnce_WhenCallbackAddedTwice_OnlySecondCallbackShouldBeInvoked) {
- Pipe pipe;
- StubCallbackHandler handler1(true);
- StubCallbackHandler handler2(true);
-
- handler1.setCallback(mPollLoop, pipe.receiveFd, POLL_IN);
- handler2.setCallback(mPollLoop, pipe.receiveFd, POLL_IN); // replace it
- pipe.writeSignal(); // would cause FD to be considered signalled
-
- StopWatch stopWatch("pollOnce");
- int32_t result = mPollLoop->pollOnce(100);
- int32_t elapsedMillis = ns2ms(stopWatch.elapsedTime());
-
- ASSERT_EQ(OK, pipe.readSignal())
- << "signal should actually have been written";
- EXPECT_NEAR(0, elapsedMillis, TIMING_TOLERANCE_MS)
- << "elapsed time should approx. zero because FD was already signalled";
- EXPECT_EQ(result, PollLoop::POLL_CALLBACK)
- << "pollOnce result should be POLL_CALLBACK because FD was signalled";
- EXPECT_EQ(0, handler1.callbackCount)
- << "original handler callback should not be invoked because it was replaced";
- EXPECT_EQ(1, handler2.callbackCount)
- << "replacement handler callback should be invoked";
-}
-
-
-} // namespace android
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