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#include "base64.hpp"
#include "gtest/gtest.h"
#include "big_list_of_naughty_strings.hpp"

// Tests that Base64 basic strings work
TEST(Base64, EncodeBasicString)
{
    std::string output;
    EXPECT_TRUE(base64::base64_encode("Foo", output));
}

// Tests the test vectors available in the base64 spec
TEST(Base64, EncodeRFC4648)
{
    std::string output;
    EXPECT_TRUE(base64::base64_encode("", output));
    EXPECT_EQ(output, "");
    EXPECT_TRUE(base64::base64_encode("f", output));
    EXPECT_EQ(output, "Zg==");
    EXPECT_TRUE(base64::base64_encode("fo", output));
    EXPECT_EQ(output, "Zm8=");
    EXPECT_TRUE(base64::base64_encode("foo", output));
    EXPECT_EQ(output, "Zm9v");
    EXPECT_TRUE(base64::base64_encode("foob", output));
    EXPECT_EQ(output, "Zm9vYg==");
    EXPECT_TRUE(base64::base64_encode("fooba", output));
    EXPECT_EQ(output, "Zm9vYmE=");
    EXPECT_TRUE(base64::base64_encode("foobar", output));
    EXPECT_EQ(output, "Zm9vYmFy");
}

// Tests the test vectors available in the base64 spec
TEST(Base64, DecodeRFC4648)
{
    std::string output;
    EXPECT_TRUE(base64::base64_decode("", output));
    EXPECT_EQ(output, "");
    EXPECT_TRUE(base64::base64_decode("Zg==", output));
    EXPECT_EQ(output, "f");
    EXPECT_TRUE(base64::base64_decode("Zm8=", output));
    EXPECT_EQ(output, "fo");
    EXPECT_TRUE(base64::base64_decode("Zm9v", output));
    EXPECT_EQ(output, "foo");
    EXPECT_TRUE(base64::base64_decode("Zm9vYg==", output));
    EXPECT_EQ(output, "foob");
    EXPECT_TRUE(base64::base64_decode("Zm9vYmE=", output));
    EXPECT_EQ(output, "fooba");
    EXPECT_TRUE(base64::base64_decode("Zm9vYmFy", output));
    EXPECT_EQ(output, "foobar");
}

// Tests using pathalogical cases for all escapings
TEST(Base64, NaugtyStrings){
    std::string base64_string;
    std::string decoded_string;
    for (auto& str: naughty_strings){
        EXPECT_TRUE(base64::base64_encode(str, base64_string));
        EXPECT_TRUE(base64::base64_decode(base64_string, decoded_string));
        EXPECT_EQ(str, decoded_string);
    }
}