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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* Helper routines for xpcom gtests. */
#include "Helpers.h"
#include <algorithm>
#include "gtest/gtest.h"
#include "mozilla/gtest/MozAssertions.h"
#include "nsIOutputStream.h"
#include "nsStreamUtils.h"
#include "nsTArray.h"
#include "nsThreadUtils.h"
namespace testing {
// Populate an array with the given number of bytes. Data is lorem ipsum
// random text, but deterministic across multiple calls.
void CreateData(uint32_t aNumBytes, nsTArray<char>& aDataOut) {
static const char data[] =
"Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec egestas "
"purus eu condimentum iaculis. In accumsan leo eget odio porttitor, non "
"rhoncus nulla vestibulum. Etiam lacinia consectetur nisl nec "
"sollicitudin. Sed fringilla accumsan diam, pulvinar varius massa. Duis "
"mollis dignissim felis, eget tempus nisi tristique ut. Fusce euismod, "
"lectus non lacinia tempor, tellus diam suscipit quam, eget hendrerit "
"lacus nunc fringilla ante. Sed ultrices massa vitae risus molestie, ut "
"finibus quam laoreet nullam.";
static const uint32_t dataLength = sizeof(data) - 1;
aDataOut.SetCapacity(aNumBytes);
while (aNumBytes > 0) {
uint32_t amount = std::min(dataLength, aNumBytes);
aDataOut.AppendElements(data, amount);
aNumBytes -= amount;
}
}
// Write the given number of bytes out to the stream. Loop until expected
// bytes count is reached or an error occurs.
void Write(nsIOutputStream* aStream, const nsTArray<char>& aData,
uint32_t aOffset, uint32_t aNumBytes) {
uint32_t remaining =
std::min(aNumBytes, static_cast<uint32_t>(aData.Length() - aOffset));
while (remaining > 0) {
uint32_t numWritten;
nsresult rv =
aStream->Write(aData.Elements() + aOffset, remaining, &numWritten);
ASSERT_NS_SUCCEEDED(rv);
if (numWritten < 1) {
break;
}
aOffset += numWritten;
remaining -= numWritten;
}
}
// Write the given number of bytes and then close the stream.
void WriteAllAndClose(nsIOutputStream* aStream, const nsTArray<char>& aData) {
Write(aStream, aData, 0, aData.Length());
aStream->Close();
}
// Synchronously consume the given input stream and validate the resulting data
// against the given array of expected values.
void ConsumeAndValidateStream(nsIInputStream* aStream,
const nsTArray<char>& aExpectedData) {
nsDependentCSubstring data(aExpectedData.Elements(), aExpectedData.Length());
ConsumeAndValidateStream(aStream, data);
}
// Synchronously consume the given input stream and validate the resulting data
// against the given string of expected values.
void ConsumeAndValidateStream(nsIInputStream* aStream,
const nsACString& aExpectedData) {
nsAutoCString outputData;
nsresult rv = NS_ConsumeStream(aStream, UINT32_MAX, outputData);
ASSERT_NS_SUCCEEDED(rv);
ASSERT_EQ(aExpectedData.Length(), outputData.Length());
ASSERT_TRUE(aExpectedData.Equals(outputData));
}
NS_IMPL_ISUPPORTS(OutputStreamCallback, nsIOutputStreamCallback);
OutputStreamCallback::OutputStreamCallback() : mCalled(false) {}
OutputStreamCallback::~OutputStreamCallback() = default;
NS_IMETHODIMP
OutputStreamCallback::OnOutputStreamReady(nsIAsyncOutputStream* aStream) {
mCalled = true;
return NS_OK;
}
NS_IMPL_ISUPPORTS(InputStreamCallback, nsIInputStreamCallback);
InputStreamCallback::InputStreamCallback() : mCalled(false) {}
InputStreamCallback::~InputStreamCallback() = default;
NS_IMETHODIMP
InputStreamCallback::OnInputStreamReady(nsIAsyncInputStream* aStream) {
mCalled = true;
return NS_OK;
}
AsyncStringStream::AsyncStringStream(const nsACString& aBuffer) {
NS_NewCStringInputStream(getter_AddRefs(mStream), aBuffer);
}
NS_IMETHODIMP
AsyncStringStream::Available(uint64_t* aLength) {
return mStream->Available(aLength);
}
NS_IMETHODIMP
AsyncStringStream::StreamStatus() { return mStream->StreamStatus(); }
NS_IMETHODIMP
AsyncStringStream::Read(char* aBuffer, uint32_t aCount, uint32_t* aReadCount) {
return mStream->Read(aBuffer, aCount, aReadCount);
}
NS_IMETHODIMP
AsyncStringStream::ReadSegments(nsWriteSegmentFun aWriter, void* aClosure,
uint32_t aCount, uint32_t* aResult) {
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
AsyncStringStream::Close() {
nsresult rv = mStream->Close();
if (NS_SUCCEEDED(rv)) {
MaybeExecCallback(mCallback, mCallbackEventTarget);
}
return rv;
}
NS_IMETHODIMP
AsyncStringStream::IsNonBlocking(bool* aNonBlocking) {
return mStream->IsNonBlocking(aNonBlocking);
}
NS_IMETHODIMP
AsyncStringStream::CloseWithStatus(nsresult aStatus) { return Close(); }
NS_IMETHODIMP
AsyncStringStream::AsyncWait(nsIInputStreamCallback* aCallback, uint32_t aFlags,
uint32_t aRequestedCount,
nsIEventTarget* aEventTarget) {
if (aFlags & nsIAsyncInputStream::WAIT_CLOSURE_ONLY) {
mCallback = aCallback;
mCallbackEventTarget = aEventTarget;
return NS_OK;
}
MaybeExecCallback(aCallback, aEventTarget);
return NS_OK;
}
void AsyncStringStream::MaybeExecCallback(nsIInputStreamCallback* aCallback,
nsIEventTarget* aEventTarget) {
if (!aCallback) {
return;
}
nsCOMPtr<nsIInputStreamCallback> callback = aCallback;
nsCOMPtr<nsIAsyncInputStream> self = this;
nsCOMPtr<nsIRunnable> r = NS_NewRunnableFunction(
"AsyncWait", [callback, self]() { callback->OnInputStreamReady(self); });
if (aEventTarget) {
aEventTarget->Dispatch(r.forget());
} else {
r->Run();
}
}
NS_IMPL_ISUPPORTS(AsyncStringStream, nsIAsyncInputStream, nsIInputStream)
NS_IMPL_ADDREF(LengthInputStream);
NS_IMPL_RELEASE(LengthInputStream);
NS_INTERFACE_MAP_BEGIN(LengthInputStream)
NS_INTERFACE_MAP_ENTRY(nsIInputStream)
NS_INTERFACE_MAP_ENTRY_CONDITIONAL(nsIInputStreamLength, mIsInputStreamLength)
NS_INTERFACE_MAP_ENTRY_CONDITIONAL(nsIAsyncInputStreamLength,
mIsAsyncInputStreamLength)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIInputStream)
NS_INTERFACE_MAP_END
NS_IMPL_ISUPPORTS(LengthCallback, nsIInputStreamLengthCallback)
NS_IMPL_ISUPPORTS(RunnableQueue, nsIEventTarget, nsISerialEventTarget)
} // namespace testing
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