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-rw-r--r--xpcom/tests/gtest/TestBase64.cpp454
1 files changed, 454 insertions, 0 deletions
diff --git a/xpcom/tests/gtest/TestBase64.cpp b/xpcom/tests/gtest/TestBase64.cpp
new file mode 100644
index 0000000000..55fbcefe38
--- /dev/null
+++ b/xpcom/tests/gtest/TestBase64.cpp
@@ -0,0 +1,454 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* 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 "mozilla/Attributes.h"
+#include "mozilla/Base64.h"
+#include "nsComponentManagerUtils.h"
+#include "nsIScriptableBase64Encoder.h"
+#include "nsIInputStream.h"
+#include "nsString.h"
+
+#include "gtest/gtest.h"
+#include "mozilla/gtest/MozAssertions.h"
+
+struct Chunk {
+ Chunk(uint32_t l, const char* c) : mLength(l), mData(c) {}
+
+ uint32_t mLength;
+ const char* mData;
+};
+
+struct Test {
+ Test(Chunk* c, const char* r) : mChunks(c), mResult(r) {}
+
+ Chunk* mChunks;
+ const char* mResult;
+};
+
+static Chunk kTest1Chunks[] = {Chunk(9, "Hello sir"), Chunk(0, nullptr)};
+
+static Chunk kTest2Chunks[] = {Chunk(3, "Hel"), Chunk(3, "lo "),
+ Chunk(3, "sir"), Chunk(0, nullptr)};
+
+static Chunk kTest3Chunks[] = {Chunk(1, "I"), Chunk(0, nullptr)};
+
+static Chunk kTest4Chunks[] = {Chunk(2, "Hi"), Chunk(0, nullptr)};
+
+static Chunk kTest5Chunks[] = {Chunk(1, "B"), Chunk(2, "ob"),
+ Chunk(0, nullptr)};
+
+static Chunk kTest6Chunks[] = {Chunk(2, "Bo"), Chunk(1, "b"),
+ Chunk(0, nullptr)};
+
+static Chunk kTest7Chunks[] = {Chunk(1, "F"), // Carry over 1
+ Chunk(4, "iref"), // Carry over 2
+ Chunk(2, "ox"), // 1
+ Chunk(4, " is "), // 2
+ Chunk(2, "aw"), // 1
+ Chunk(4, "esom"), // 2
+ Chunk(2, "e!"), Chunk(0, nullptr)};
+
+static Chunk kTest8Chunks[] = {Chunk(5, "ALL T"),
+ Chunk(1, "H"),
+ Chunk(4, "ESE "),
+ Chunk(2, "WO"),
+ Chunk(21, "RLDS ARE YOURS EXCEPT"),
+ Chunk(9, " EUROPA. "),
+ Chunk(25, "ATTEMPT NO LANDING THERE."),
+ Chunk(0, nullptr)};
+
+static Test kTests[] = {
+ // Test 1, test a simple round string in one chunk
+ Test(kTest1Chunks, "SGVsbG8gc2ly"),
+ // Test 2, test a simple round string split into round chunks
+ Test(kTest2Chunks, "SGVsbG8gc2ly"),
+ // Test 3, test a single chunk that's 2 short
+ Test(kTest3Chunks, "SQ=="),
+ // Test 4, test a single chunk that's 1 short
+ Test(kTest4Chunks, "SGk="),
+ // Test 5, test a single chunk that's 2 short, followed by a chunk of 2
+ Test(kTest5Chunks, "Qm9i"),
+ // Test 6, test a single chunk that's 1 short, followed by a chunk of 1
+ Test(kTest6Chunks, "Qm9i"),
+ // Test 7, test alternating carryovers
+ Test(kTest7Chunks, "RmlyZWZveCBpcyBhd2Vzb21lIQ=="),
+ // Test 8, test a longish string
+ Test(kTest8Chunks,
+ "QUxMIFRIRVNFIFdPUkxEUyBBUkUgWU9VUlMgRVhDRVBUIEVVUk9QQS4gQVRURU1QVCBOT"
+ "yBMQU5ESU5HIFRIRVJFLg=="),
+ // Terminator
+ Test(nullptr, nullptr)};
+
+class FakeInputStream final : public nsIInputStream {
+ ~FakeInputStream() = default;
+
+ public:
+ FakeInputStream()
+ : mTestNumber(0),
+ mTest(&kTests[0]),
+ mChunk(&mTest->mChunks[0]),
+ mClosed(false) {}
+
+ NS_DECL_ISUPPORTS
+ NS_DECL_NSIINPUTSTREAM
+
+ void Reset();
+ bool NextTest();
+ void CheckTest(nsACString& aResult);
+ void CheckTest(nsAString& aResult);
+
+ private:
+ uint32_t mTestNumber;
+ const Test* mTest;
+ const Chunk* mChunk;
+ bool mClosed;
+};
+
+NS_IMPL_ISUPPORTS(FakeInputStream, nsIInputStream)
+
+NS_IMETHODIMP
+FakeInputStream::Close() {
+ mClosed = true;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+FakeInputStream::Available(uint64_t* aAvailable) {
+ *aAvailable = 0;
+
+ if (mClosed) return NS_BASE_STREAM_CLOSED;
+
+ const Chunk* chunk = mChunk;
+ while (chunk->mLength) {
+ *aAvailable += chunk->mLength;
+ chunk++;
+ }
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+FakeInputStream::StreamStatus() {
+ return mClosed ? NS_BASE_STREAM_CLOSED : NS_OK;
+}
+
+NS_IMETHODIMP
+FakeInputStream::Read(char* aBuffer, uint32_t aCount, uint32_t* aOut) {
+ return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+FakeInputStream::ReadSegments(nsWriteSegmentFun aWriter, void* aClosure,
+ uint32_t aCount, uint32_t* aRead) {
+ *aRead = 0;
+
+ if (mClosed) return NS_BASE_STREAM_CLOSED;
+
+ while (mChunk->mLength) {
+ uint32_t written = 0;
+
+ nsresult rv = (*aWriter)(this, aClosure, mChunk->mData, *aRead,
+ mChunk->mLength, &written);
+
+ *aRead += written;
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ mChunk++;
+ }
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+FakeInputStream::IsNonBlocking(bool* aIsBlocking) {
+ *aIsBlocking = false;
+ return NS_OK;
+}
+
+void FakeInputStream::Reset() {
+ mClosed = false;
+ mChunk = &mTest->mChunks[0];
+}
+
+bool FakeInputStream::NextTest() {
+ mTestNumber++;
+ mTest = &kTests[mTestNumber];
+ mChunk = &mTest->mChunks[0];
+ mClosed = false;
+
+ return mTest->mChunks != nullptr;
+}
+
+void FakeInputStream::CheckTest(nsACString& aResult) {
+ ASSERT_STREQ(aResult.BeginReading(), mTest->mResult);
+}
+
+void FakeInputStream::CheckTest(nsAString& aResult) {
+ ASSERT_TRUE(aResult.EqualsASCII(mTest->mResult))
+ << "Actual: " << NS_ConvertUTF16toUTF8(aResult).get() << '\n'
+ << "Expected: " << mTest->mResult;
+}
+
+TEST(Base64, StreamEncoder)
+{
+ nsCOMPtr<nsIScriptableBase64Encoder> encoder =
+ do_CreateInstance("@mozilla.org/scriptablebase64encoder;1");
+ ASSERT_TRUE(encoder);
+
+ RefPtr<FakeInputStream> stream = new FakeInputStream();
+ do {
+ nsString wideString;
+ nsCString string;
+
+ nsresult rv;
+ rv = encoder->EncodeToString(stream, 0, wideString);
+ ASSERT_NS_SUCCEEDED(rv);
+
+ stream->Reset();
+
+ rv = encoder->EncodeToCString(stream, 0, string);
+ ASSERT_NS_SUCCEEDED(rv);
+
+ stream->CheckTest(wideString);
+ stream->CheckTest(string);
+ } while (stream->NextTest());
+}
+
+struct EncodeDecodeTestCase {
+ const char* mInput;
+ const char* mOutput;
+};
+
+static EncodeDecodeTestCase sRFC4648TestCases[] = {
+ {"", ""},
+ {"f", "Zg=="},
+ {"fo", "Zm8="},
+ {"foo", "Zm9v"},
+ {"foob", "Zm9vYg=="},
+ {"fooba", "Zm9vYmE="},
+ {"foobar", "Zm9vYmFy"},
+};
+
+TEST(Base64, RFC4648Encoding)
+{
+ for (auto& testcase : sRFC4648TestCases) {
+ nsDependentCString in(testcase.mInput);
+ nsAutoCString out;
+ nsresult rv = mozilla::Base64Encode(in, out);
+ ASSERT_NS_SUCCEEDED(rv);
+ ASSERT_TRUE(out.EqualsASCII(testcase.mOutput));
+ }
+
+ for (auto& testcase : sRFC4648TestCases) {
+ NS_ConvertUTF8toUTF16 in(testcase.mInput);
+ nsAutoString out;
+ nsresult rv = mozilla::Base64Encode(in, out);
+ ASSERT_NS_SUCCEEDED(rv);
+ ASSERT_TRUE(out.EqualsASCII(testcase.mOutput));
+ }
+}
+
+TEST(Base64, RFC4648Encoding_TransformAndAppend_EmptyPrefix)
+{
+ for (auto& testcase : sRFC4648TestCases) {
+ nsDependentCString in(testcase.mInput);
+ nsAutoString out;
+ nsresult rv =
+ mozilla::Base64EncodeAppend(in.BeginReading(), in.Length(), out);
+ ASSERT_NS_SUCCEEDED(rv);
+ ASSERT_TRUE(out.EqualsASCII(testcase.mOutput));
+ }
+}
+
+TEST(Base64, RFC4648Encoding_TransformAndAppend_NonEmptyPrefix)
+{
+ for (auto& testcase : sRFC4648TestCases) {
+ nsDependentCString in(testcase.mInput);
+ nsAutoString out{u"foo"_ns};
+ nsresult rv =
+ mozilla::Base64EncodeAppend(in.BeginReading(), in.Length(), out);
+ ASSERT_NS_SUCCEEDED(rv);
+ ASSERT_TRUE(StringBeginsWith(out, u"foo"_ns));
+ ASSERT_TRUE(Substring(out, 3).EqualsASCII(testcase.mOutput));
+ }
+}
+
+TEST(Base64, RFC4648Decoding)
+{
+ for (auto& testcase : sRFC4648TestCases) {
+ nsDependentCString out(testcase.mOutput);
+ nsAutoCString in;
+ nsresult rv = mozilla::Base64Decode(out, in);
+ ASSERT_NS_SUCCEEDED(rv);
+ ASSERT_TRUE(in.EqualsASCII(testcase.mInput));
+ }
+
+ for (auto& testcase : sRFC4648TestCases) {
+ NS_ConvertUTF8toUTF16 out(testcase.mOutput);
+ nsAutoString in;
+ nsresult rv = mozilla::Base64Decode(out, in);
+ ASSERT_NS_SUCCEEDED(rv);
+ ASSERT_TRUE(in.EqualsASCII(testcase.mInput));
+ }
+}
+
+TEST(Base64, RFC4648DecodingRawPointers)
+{
+ for (auto& testcase : sRFC4648TestCases) {
+ size_t outputLength = strlen(testcase.mOutput);
+ size_t inputLength = strlen(testcase.mInput);
+
+ // This will be allocated by Base64Decode.
+ char* buffer = nullptr;
+
+ uint32_t binaryLength = 0;
+ nsresult rv = mozilla::Base64Decode(testcase.mOutput, outputLength, &buffer,
+ &binaryLength);
+ ASSERT_NS_SUCCEEDED(rv);
+ ASSERT_EQ(binaryLength, inputLength);
+ ASSERT_STREQ(testcase.mInput, buffer);
+ free(buffer);
+ }
+}
+
+static EncodeDecodeTestCase sNonASCIITestCases[] = {
+ {"\x80", "gA=="},
+ {"\xff", "/w=="},
+ {"\x80\x80", "gIA="},
+ {"\x80\x81", "gIE="},
+ {"\xff\xff", "//8="},
+ {"\x80\x80\x80", "gICA"},
+ {"\xff\xff\xff", "////"},
+ {"\x80\x80\x80\x80", "gICAgA=="},
+ {"\xff\xff\xff\xff", "/////w=="},
+};
+
+TEST(Base64, NonASCIIEncoding)
+{
+ for (auto& testcase : sNonASCIITestCases) {
+ nsDependentCString in(testcase.mInput);
+ nsAutoCString out;
+ nsresult rv = mozilla::Base64Encode(in, out);
+ ASSERT_NS_SUCCEEDED(rv);
+ ASSERT_TRUE(out.EqualsASCII(testcase.mOutput));
+ }
+}
+
+TEST(Base64, NonASCIIEncodingWideString)
+{
+ for (auto& testcase : sNonASCIITestCases) {
+ nsAutoString in, out;
+ // XXX Handles Latin1 despite the name
+ AppendASCIItoUTF16(nsDependentCString(testcase.mInput), in);
+ nsresult rv = mozilla::Base64Encode(in, out);
+ ASSERT_NS_SUCCEEDED(rv);
+ ASSERT_TRUE(out.EqualsASCII(testcase.mOutput));
+ }
+}
+
+TEST(Base64, NonASCIIDecoding)
+{
+ for (auto& testcase : sNonASCIITestCases) {
+ nsDependentCString out(testcase.mOutput);
+ nsAutoCString in;
+ nsresult rv = mozilla::Base64Decode(out, in);
+ ASSERT_NS_SUCCEEDED(rv);
+ ASSERT_TRUE(in.Equals(testcase.mInput));
+ }
+}
+
+TEST(Base64, NonASCIIDecodingWideString)
+{
+ for (auto& testcase : sNonASCIITestCases) {
+ nsAutoString in, out;
+ // XXX Handles Latin1 despite the name
+ AppendASCIItoUTF16(nsDependentCString(testcase.mOutput), out);
+ nsresult rv = mozilla::Base64Decode(out, in);
+ ASSERT_NS_SUCCEEDED(rv);
+ // Can't use EqualsASCII, because our comparison string isn't ASCII.
+ for (size_t i = 0; i < in.Length(); ++i) {
+ ASSERT_TRUE(((unsigned int)in[i] & 0xff00) == 0);
+ ASSERT_EQ((unsigned char)in[i], (unsigned char)testcase.mInput[i]);
+ }
+ ASSERT_TRUE(strlen(testcase.mInput) == in.Length());
+ }
+}
+
+// For historical reasons, our wide string base64 encode routines mask off
+// the high bits of non-latin1 wide strings.
+TEST(Base64, EncodeNon8BitWideString)
+{
+ {
+ const nsAutoString non8Bit(u"\x1ff");
+ nsAutoString out;
+ nsresult rv = mozilla::Base64Encode(non8Bit, out);
+ ASSERT_NS_SUCCEEDED(rv);
+ ASSERT_TRUE(out.EqualsLiteral("/w=="));
+ }
+ {
+ const nsAutoString non8Bit(u"\xfff");
+ nsAutoString out;
+ nsresult rv = mozilla::Base64Encode(non8Bit, out);
+ ASSERT_NS_SUCCEEDED(rv);
+ ASSERT_TRUE(out.EqualsLiteral("/w=="));
+ }
+}
+
+// For historical reasons, our wide string base64 decode routines mask off
+// the high bits of non-latin1 wide strings.
+TEST(Base64, DecodeNon8BitWideString)
+{
+ {
+ // This would be "/w==" in a nsCString
+ const nsAutoString non8Bit(u"\x12f\x177==");
+ const nsAutoString expectedOutput(u"\xff");
+ ASSERT_EQ(non8Bit.Length(), 4u);
+ nsAutoString out;
+ nsresult rv = mozilla::Base64Decode(non8Bit, out);
+ ASSERT_NS_SUCCEEDED(rv);
+ ASSERT_TRUE(out.Equals(expectedOutput));
+ }
+ {
+ const nsAutoString non8Bit(u"\xf2f\xf77==");
+ const nsAutoString expectedOutput(u"\xff");
+ nsAutoString out;
+ nsresult rv = mozilla::Base64Decode(non8Bit, out);
+ ASSERT_NS_SUCCEEDED(rv);
+ ASSERT_TRUE(out.Equals(expectedOutput));
+ }
+}
+
+TEST(Base64, DecodeWideTo8Bit)
+{
+ for (auto& testCase : sRFC4648TestCases) {
+ const nsAutoCString in8bit(testCase.mOutput);
+ const NS_ConvertUTF8toUTF16 inWide(testCase.mOutput);
+ nsAutoCString out2;
+ nsAutoCString out1;
+ MOZ_RELEASE_ASSERT(NS_SUCCEEDED(mozilla::Base64Decode(inWide, out1)));
+ MOZ_RELEASE_ASSERT(NS_SUCCEEDED(mozilla::Base64Decode(in8bit, out2)));
+ ASSERT_EQ(out1, out2);
+ }
+}
+
+TEST(Base64, TruncateOnInvalidDecodeCString)
+{
+ constexpr auto invalid = "@@=="_ns;
+ nsAutoCString out("I should be truncated!");
+ nsresult rv = mozilla::Base64Decode(invalid, out);
+ ASSERT_NS_FAILED(rv);
+ ASSERT_EQ(out.Length(), 0u);
+}
+
+TEST(Base64, TruncateOnInvalidDecodeWideString)
+{
+ constexpr auto invalid = u"@@=="_ns;
+ nsAutoString out(u"I should be truncated!");
+ nsresult rv = mozilla::Base64Decode(invalid, out);
+ ASSERT_NS_FAILED(rv);
+ ASSERT_EQ(out.Length(), 0u);
+}
+
+// TODO: Add tests for OOM handling.
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