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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/. */
#include "gtest/gtest.h"
#include "Helpers.h"
#include "mozilla/gtest/MozAssertions.h"
#include "nsICloneableInputStream.h"
#include "nsStringStream.h"
#include "nsTArray.h"
#include "nsIInputStream.h"
#include "nsCOMPtr.h"
#include "nsStreamUtils.h"
#include "mozilla/Span.h"
#include "nsISeekableStream.h"
namespace {
static void TestStringStream(uint32_t aNumBytes) {
nsTArray<char> inputData;
testing::CreateData(aNumBytes, inputData);
nsDependentCSubstring inputString(inputData.Elements(), inputData.Length());
nsCOMPtr<nsIInputStream> stream;
nsresult rv = NS_NewCStringInputStream(getter_AddRefs(stream), inputString);
ASSERT_NS_SUCCEEDED(rv);
testing::ConsumeAndValidateStream(stream, inputString);
}
static void TestStringStreamClone(uint32_t aNumBytes) {
nsTArray<char> inputData;
testing::CreateData(aNumBytes, inputData);
nsDependentCSubstring inputString(inputData.Elements(), inputData.Length());
nsCOMPtr<nsIInputStream> stream;
nsresult rv = NS_NewCStringInputStream(getter_AddRefs(stream), inputString);
ASSERT_NS_SUCCEEDED(rv);
nsCOMPtr<nsICloneableInputStream> cloneable = do_QueryInterface(stream);
ASSERT_TRUE(cloneable != nullptr);
ASSERT_TRUE(cloneable->GetCloneable());
nsCOMPtr<nsIInputStream> clone;
rv = cloneable->Clone(getter_AddRefs(clone));
testing::ConsumeAndValidateStream(stream, inputString);
// Release the stream to verify that the clone's string survives correctly.
stream = nullptr;
testing::ConsumeAndValidateStream(clone, inputString);
}
} // namespace
TEST(StringStream, Simple_4k)
{ TestStringStream(1024 * 4); }
TEST(StringStream, Clone_4k)
{ TestStringStreamClone(1024 * 4); }
static nsresult CloseStreamThenRead(nsIInputStream* aInStr, void* aClosure,
const char* aBuffer, uint32_t aOffset,
uint32_t aCount, uint32_t* aCountWritten) {
// Closing the stream will free the data
nsresult rv = aInStr->Close();
if (NS_FAILED(rv)) {
return rv;
}
// This will likely be allocated in the same slot as what we have in aBuffer
char* newAlloc = moz_xstrdup("abcd");
char* toBuf = static_cast<char*>(aClosure);
memcpy(&toBuf[aOffset], aBuffer, aCount);
*aCountWritten = aCount;
free(newAlloc);
return NS_OK;
}
TEST(StringStream, CancelInReadSegments)
{
char* buffer = moz_xstrdup("test");
nsCOMPtr<nsIInputStream> stream;
nsresult rv = NS_NewByteInputStream(
getter_AddRefs(stream), mozilla::Span(buffer, 5), NS_ASSIGNMENT_ADOPT);
ASSERT_NS_SUCCEEDED(rv);
char buf[100];
uint32_t count = 0;
uint64_t available = 0;
rv = stream->Available(&available);
ASSERT_NS_SUCCEEDED(rv);
rv = stream->ReadSegments(CloseStreamThenRead, buf, available, &count);
ASSERT_NS_SUCCEEDED(rv);
ASSERT_TRUE(count == 5);
ASSERT_TRUE(!strcmp(buf, "test"));
}
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