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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/base64url.h"
#include "base/macros.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace base {
namespace {
TEST(Base64UrlTest, EncodeIncludePaddingPolicy) {
std::string output;
Base64UrlEncode("hello?world", Base64UrlEncodePolicy::INCLUDE_PADDING,
&output);
// Base64 version: aGVsbG8/d29ybGQ=
EXPECT_EQ("aGVsbG8_d29ybGQ=", output);
// Test for behavior for very short and empty strings.
Base64UrlEncode("??", Base64UrlEncodePolicy::INCLUDE_PADDING, &output);
EXPECT_EQ("Pz8=", output);
Base64UrlEncode("", Base64UrlEncodePolicy::INCLUDE_PADDING, &output);
EXPECT_EQ("", output);
}
TEST(Base64UrlTest, EncodeOmitPaddingPolicy) {
std::string output;
Base64UrlEncode("hello?world", Base64UrlEncodePolicy::OMIT_PADDING, &output);
// base64 version: aGVsbG8/d29ybGQ=
EXPECT_EQ("aGVsbG8_d29ybGQ", output);
// Test for behavior for very short and empty strings.
Base64UrlEncode("??", Base64UrlEncodePolicy::OMIT_PADDING, &output);
EXPECT_EQ("Pz8", output);
Base64UrlEncode("", Base64UrlEncodePolicy::OMIT_PADDING, &output);
EXPECT_EQ("", output);
}
TEST(Base64UrlTest, DecodeRequirePaddingPolicy) {
std::string output;
ASSERT_TRUE(Base64UrlDecode("aGVsbG8_d29ybGQ=",
Base64UrlDecodePolicy::REQUIRE_PADDING, &output));
EXPECT_EQ("hello?world", output);
ASSERT_FALSE(Base64UrlDecode(
"aGVsbG8_d29ybGQ", Base64UrlDecodePolicy::REQUIRE_PADDING, &output));
// Test for behavior for very short and empty strings.
ASSERT_TRUE(
Base64UrlDecode("Pz8=", Base64UrlDecodePolicy::REQUIRE_PADDING, &output));
EXPECT_EQ("??", output);
ASSERT_TRUE(
Base64UrlDecode("", Base64UrlDecodePolicy::REQUIRE_PADDING, &output));
EXPECT_EQ("", output);
}
TEST(Base64UrlTest, DecodeIgnorePaddingPolicy) {
std::string output;
ASSERT_TRUE(Base64UrlDecode("aGVsbG8_d29ybGQ",
Base64UrlDecodePolicy::IGNORE_PADDING, &output));
EXPECT_EQ("hello?world", output);
// Including the padding is accepted as well.
ASSERT_TRUE(Base64UrlDecode("aGVsbG8_d29ybGQ=",
Base64UrlDecodePolicy::IGNORE_PADDING, &output));
EXPECT_EQ("hello?world", output);
}
TEST(Base64UrlTest, DecodeDisallowPaddingPolicy) {
std::string output;
ASSERT_FALSE(Base64UrlDecode(
"aGVsbG8_d29ybGQ=", Base64UrlDecodePolicy::DISALLOW_PADDING, &output));
// The policy will allow the input when padding has been omitted.
ASSERT_TRUE(Base64UrlDecode(
"aGVsbG8_d29ybGQ", Base64UrlDecodePolicy::DISALLOW_PADDING, &output));
EXPECT_EQ("hello?world", output);
}
TEST(Base64UrlTest, DecodeDisallowsBase64Alphabet) {
std::string output;
// The "/" character is part of the conventional base64 alphabet, but has been
// substituted with "_" in the base64url alphabet.
ASSERT_FALSE(Base64UrlDecode(
"aGVsbG8/d29ybGQ=", Base64UrlDecodePolicy::REQUIRE_PADDING, &output));
}
TEST(Base64UrlTest, DecodeDisallowsPaddingOnly) {
std::string output;
ASSERT_FALSE(Base64UrlDecode(
"=", Base64UrlDecodePolicy::IGNORE_PADDING, &output));
ASSERT_FALSE(Base64UrlDecode(
"==", Base64UrlDecodePolicy::IGNORE_PADDING, &output));
ASSERT_FALSE(Base64UrlDecode(
"===", Base64UrlDecodePolicy::IGNORE_PADDING, &output));
ASSERT_FALSE(Base64UrlDecode(
"====", Base64UrlDecodePolicy::IGNORE_PADDING, &output));
}
} // namespace
} // namespace base
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