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98 lines
3.2 KiB
C++
98 lines
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* Helper routines for xpcom gtests. */
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#include "Helpers.h"
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#include <algorithm>
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#include "gtest/gtest.h"
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#include "nsIOutputStream.h"
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#include "nsStreamUtils.h"
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#include "nsTArray.h"
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namespace testing {
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// Populate an array with the given number of bytes. Data is lorem ipsum
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// random text, but deterministic across multiple calls.
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void
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CreateData(uint32_t aNumBytes, nsTArray<char>& aDataOut)
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{
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static const char data[] =
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"Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec egestas "
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"purus eu condimentum iaculis. In accumsan leo eget odio porttitor, non "
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"rhoncus nulla vestibulum. Etiam lacinia consectetur nisl nec "
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"sollicitudin. Sed fringilla accumsan diam, pulvinar varius massa. Duis "
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"mollis dignissim felis, eget tempus nisi tristique ut. Fusce euismod, "
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"lectus non lacinia tempor, tellus diam suscipit quam, eget hendrerit "
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"lacus nunc fringilla ante. Sed ultrices massa vitae risus molestie, ut "
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"finibus quam laoreet nullam.";
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static const uint32_t dataLength = sizeof(data) - 1;
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aDataOut.SetCapacity(aNumBytes);
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while (aNumBytes > 0) {
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uint32_t amount = std::min(dataLength, aNumBytes);
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aDataOut.AppendElements(data, amount);
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aNumBytes -= amount;
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}
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}
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// Write the given number of bytes out to the stream. Loop until expected
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// bytes count is reached or an error occurs.
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void
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Write(nsIOutputStream* aStream, const nsTArray<char>& aData, uint32_t aOffset,
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uint32_t aNumBytes)
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{
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uint32_t remaining =
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std::min(aNumBytes, static_cast<uint32_t>(aData.Length() - aOffset));
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while (remaining > 0) {
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uint32_t numWritten;
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nsresult rv = aStream->Write(aData.Elements() + aOffset, remaining,
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&numWritten);
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ASSERT_TRUE(NS_SUCCEEDED(rv));
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if (numWritten < 1) {
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break;
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}
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aOffset += numWritten;
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remaining -= numWritten;
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}
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}
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// Write the given number of bytes and then close the stream.
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void
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WriteAllAndClose(nsIOutputStream* aStream, const nsTArray<char>& aData)
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{
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Write(aStream, aData, 0, aData.Length());
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aStream->Close();
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}
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// Synchronously consume the given input stream and validate the resulting data
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// against the given array of expected values.
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void
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ConsumeAndValidateStream(nsIInputStream* aStream,
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const nsTArray<char>& aExpectedData)
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{
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nsDependentCSubstring data(aExpectedData.Elements(), aExpectedData.Length());
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ConsumeAndValidateStream(aStream, data);
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}
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// Synchronously consume the given input stream and validate the resulting data
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// against the given string of expected values.
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void
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ConsumeAndValidateStream(nsIInputStream* aStream,
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const nsACString& aExpectedData)
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{
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nsAutoCString outputData;
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nsresult rv = NS_ConsumeStream(aStream, UINT32_MAX, outputData);
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ASSERT_TRUE(NS_SUCCEEDED(rv));
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ASSERT_EQ(aExpectedData.Length(), outputData.Length());
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ASSERT_TRUE(aExpectedData.Equals(outputData));
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}
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} // namespace testing
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