mirror of
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105 lines
3.7 KiB
C++
105 lines
3.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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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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#include "gtest/gtest.h"
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#include "Helpers.h"
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#include "mozilla/unused.h"
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#include "nsICloneableInputStream.h"
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#include "nsNetUtil.h"
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#include "nsStreamUtils.h"
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#include "nsStringStream.h"
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TEST(CloneInputStream, CloneableInput)
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{
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nsTArray<char> inputData;
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testing::CreateData(4 * 1024, inputData);
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nsDependentCSubstring inputString(inputData.Elements(), inputData.Length());
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nsCOMPtr<nsIInputStream> stream;
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nsresult rv = NS_NewCStringInputStream(getter_AddRefs(stream), inputString);
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ASSERT_TRUE(NS_SUCCEEDED(rv));
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nsCOMPtr<nsIInputStream> clone;
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rv = NS_CloneInputStream(stream, getter_AddRefs(clone));
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ASSERT_TRUE(NS_SUCCEEDED(rv));
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testing::ConsumeAndValidateStream(stream, inputString);
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testing::ConsumeAndValidateStream(clone, inputString);
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}
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TEST(CloneInputStream, NonCloneableInput_NoFallback)
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{
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nsTArray<char> inputData;
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testing::CreateData(4 * 1024, inputData);
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nsDependentCSubstring inputString(inputData.Elements(), inputData.Length());
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nsCOMPtr<nsIInputStream> base;
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nsresult rv = NS_NewCStringInputStream(getter_AddRefs(base), inputString);
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ASSERT_TRUE(NS_SUCCEEDED(rv));
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// Take advantage of nsBufferedInputStream being non-cloneable right
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// now. If this changes in the future, then we need a different stream
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// type in this test.
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nsCOMPtr<nsIInputStream> stream;
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rv = NS_NewBufferedInputStream(getter_AddRefs(stream), base, 4096);
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ASSERT_TRUE(NS_SUCCEEDED(rv));
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nsCOMPtr<nsICloneableInputStream> cloneable = do_QueryInterface(stream);
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ASSERT_TRUE(cloneable == nullptr);
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nsCOMPtr<nsIInputStream> clone;
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rv = NS_CloneInputStream(stream, getter_AddRefs(clone));
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ASSERT_TRUE(NS_FAILED(rv));
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ASSERT_TRUE(clone == nullptr);
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testing::ConsumeAndValidateStream(stream, inputString);
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}
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TEST(CloneInputStream, NonCloneableInput_Fallback)
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{
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nsTArray<char> inputData;
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testing::CreateData(4 * 1024, inputData);
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nsDependentCSubstring inputString(inputData.Elements(), inputData.Length());
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nsCOMPtr<nsIInputStream> base;
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nsresult rv = NS_NewCStringInputStream(getter_AddRefs(base), inputString);
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ASSERT_TRUE(NS_SUCCEEDED(rv));
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// Take advantage of nsBufferedInputStream being non-cloneable right
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// now. If this changes in the future, then we need a different stream
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// type in this test.
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nsCOMPtr<nsIInputStream> stream;
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rv = NS_NewBufferedInputStream(getter_AddRefs(stream), base, 4096);
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ASSERT_TRUE(NS_SUCCEEDED(rv));
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nsCOMPtr<nsICloneableInputStream> cloneable = do_QueryInterface(stream);
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ASSERT_TRUE(cloneable == nullptr);
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nsCOMPtr<nsIInputStream> clone;
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nsCOMPtr<nsIInputStream> replacement;
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rv = NS_CloneInputStream(stream, getter_AddRefs(clone),
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getter_AddRefs(replacement));
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ASSERT_TRUE(NS_SUCCEEDED(rv));
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ASSERT_TRUE(clone != nullptr);
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ASSERT_TRUE(replacement != nullptr);
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ASSERT_TRUE(stream.get() != replacement.get());
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ASSERT_TRUE(clone.get() != replacement.get());
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stream = replacement.forget();
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// The stream is being copied asynchronously on the STS event target. Spin
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// a yield loop here until the data is available. Yes, this is a bit hacky,
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// but AFAICT, gtest does not support async test completion.
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uint64_t available;
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do {
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mozilla::unused << PR_Sleep(PR_INTERVAL_NO_WAIT);
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rv = stream->Available(&available);
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ASSERT_TRUE(NS_SUCCEEDED(rv));
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} while(available < inputString.Length());
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testing::ConsumeAndValidateStream(stream, inputString);
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testing::ConsumeAndValidateStream(clone, inputString);
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}
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