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/*
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*
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* Copyright 2015 gRPC authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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#include "src/core/lib/slice/b64.h"
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#include <string.h>
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#include <grpc/grpc.h>
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#include <grpc/slice.h>
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#include <grpc/support/alloc.h>
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#include <grpc/support/log.h>
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#include "src/core/lib/iomgr/exec_ctx.h"
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#include "src/core/lib/slice/slice_internal.h"
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#include "test/core/util/test_config.h"
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static int buffers_are_equal(const unsigned char* buf1,
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const unsigned char* buf2, size_t size) {
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size_t i;
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for (i = 0; i < size; i++) {
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if (buf1[i] != buf2[i]) {
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gpr_log(GPR_ERROR, "buf1 and buf2 differ: buf1[%d] = %x vs buf2[%d] = %x",
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static_cast<int>(i), buf1[i], static_cast<int>(i), buf2[i]);
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return 0;
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}
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}
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return 1;
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}
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static void test_simple_encode_decode_b64(int url_safe, int multiline) {
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const char* hello = "hello";
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char* hello_b64 =
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grpc_base64_encode(hello, strlen(hello), url_safe, multiline);
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grpc_core::ExecCtx exec_ctx;
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grpc_slice hello_slice = grpc_base64_decode(hello_b64, url_safe);
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GPR_ASSERT(GRPC_SLICE_LENGTH(hello_slice) == strlen(hello));
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GPR_ASSERT(strncmp((const char*)GRPC_SLICE_START_PTR(hello_slice), hello,
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GRPC_SLICE_LENGTH(hello_slice)) == 0);
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grpc_slice_unref_internal(hello_slice);
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gpr_free(hello_b64);
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}
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static void test_full_range_encode_decode_b64(int url_safe, int multiline) {
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unsigned char orig[256];
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size_t i;
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char* b64;
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grpc_slice orig_decoded;
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for (i = 0; i < sizeof(orig); i++) orig[i] = static_cast<uint8_t>(i);
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/* Try all the different paddings. */
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for (i = 0; i < 3; i++) {
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grpc_core::ExecCtx exec_ctx;
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b64 = grpc_base64_encode(orig, sizeof(orig) - i, url_safe, multiline);
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orig_decoded = grpc_base64_decode(b64, url_safe);
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GPR_ASSERT(GRPC_SLICE_LENGTH(orig_decoded) == (sizeof(orig) - i));
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GPR_ASSERT(buffers_are_equal(orig, GRPC_SLICE_START_PTR(orig_decoded),
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sizeof(orig) - i));
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grpc_slice_unref_internal(orig_decoded);
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gpr_free(b64);
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}
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}
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static void test_simple_encode_decode_b64_no_multiline(void) {
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test_simple_encode_decode_b64(0, 0);
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}
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static void test_simple_encode_decode_b64_multiline(void) {
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test_simple_encode_decode_b64(0, 1);
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}
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static void test_simple_encode_decode_b64_urlsafe_no_multiline(void) {
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test_simple_encode_decode_b64(1, 0);
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}
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static void test_simple_encode_decode_b64_urlsafe_multiline(void) {
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test_simple_encode_decode_b64(1, 1);
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}
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static void test_full_range_encode_decode_b64_no_multiline(void) {
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test_full_range_encode_decode_b64(0, 0);
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}
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static void test_full_range_encode_decode_b64_multiline(void) {
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test_full_range_encode_decode_b64(0, 1);
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}
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static void test_full_range_encode_decode_b64_urlsafe_no_multiline(void) {
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test_full_range_encode_decode_b64(1, 0);
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}
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static void test_full_range_encode_decode_b64_urlsafe_multiline(void) {
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test_full_range_encode_decode_b64(1, 1);
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}
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static void test_url_safe_unsafe_mismatch_failure(void) {
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unsigned char orig[256];
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size_t i;
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char* b64;
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grpc_slice orig_decoded;
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int url_safe = 1;
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for (i = 0; i < sizeof(orig); i++) orig[i] = static_cast<uint8_t>(i);
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grpc_core::ExecCtx exec_ctx;
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b64 = grpc_base64_encode(orig, sizeof(orig), url_safe, 0);
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orig_decoded = grpc_base64_decode(b64, !url_safe);
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GPR_ASSERT(GRPC_SLICE_IS_EMPTY(orig_decoded));
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gpr_free(b64);
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grpc_slice_unref_internal(orig_decoded);
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b64 = grpc_base64_encode(orig, sizeof(orig), !url_safe, 0);
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orig_decoded = grpc_base64_decode(b64, url_safe);
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GPR_ASSERT(GRPC_SLICE_IS_EMPTY(orig_decoded));
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gpr_free(b64);
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grpc_slice_unref_internal(orig_decoded);
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}
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static void test_rfc4648_test_vectors(void) {
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char* b64;
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b64 = grpc_base64_encode("", 0, 0, 0);
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GPR_ASSERT(strcmp("", b64) == 0);
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gpr_free(b64);
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b64 = grpc_base64_encode("f", 1, 0, 0);
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GPR_ASSERT(strcmp("Zg==", b64) == 0);
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gpr_free(b64);
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b64 = grpc_base64_encode("fo", 2, 0, 0);
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GPR_ASSERT(strcmp("Zm8=", b64) == 0);
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gpr_free(b64);
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b64 = grpc_base64_encode("foo", 3, 0, 0);
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GPR_ASSERT(strcmp("Zm9v", b64) == 0);
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gpr_free(b64);
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b64 = grpc_base64_encode("foob", 4, 0, 0);
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GPR_ASSERT(strcmp("Zm9vYg==", b64) == 0);
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gpr_free(b64);
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b64 = grpc_base64_encode("fooba", 5, 0, 0);
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GPR_ASSERT(strcmp("Zm9vYmE=", b64) == 0);
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gpr_free(b64);
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b64 = grpc_base64_encode("foobar", 6, 0, 0);
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GPR_ASSERT(strcmp("Zm9vYmFy", b64) == 0);
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gpr_free(b64);
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}
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static void test_unpadded_decode(void) {
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grpc_slice decoded;
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grpc_core::ExecCtx exec_ctx;
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decoded = grpc_base64_decode("Zm9vYmFy", 0);
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GPR_ASSERT(!GRPC_SLICE_IS_EMPTY(decoded));
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GPR_ASSERT(grpc_slice_str_cmp(decoded, "foobar") == 0);
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grpc_slice_unref(decoded);
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decoded = grpc_base64_decode("Zm9vYmE", 0);
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GPR_ASSERT(!GRPC_SLICE_IS_EMPTY(decoded));
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GPR_ASSERT(grpc_slice_str_cmp(decoded, "fooba") == 0);
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grpc_slice_unref(decoded);
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decoded = grpc_base64_decode("Zm9vYg", 0);
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GPR_ASSERT(!GRPC_SLICE_IS_EMPTY(decoded));
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GPR_ASSERT(grpc_slice_str_cmp(decoded, "foob") == 0);
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grpc_slice_unref(decoded);
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decoded = grpc_base64_decode("Zm9v", 0);
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GPR_ASSERT(!GRPC_SLICE_IS_EMPTY(decoded));
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GPR_ASSERT(grpc_slice_str_cmp(decoded, "foo") == 0);
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grpc_slice_unref(decoded);
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decoded = grpc_base64_decode("Zm8", 0);
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GPR_ASSERT(!GRPC_SLICE_IS_EMPTY(decoded));
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GPR_ASSERT(grpc_slice_str_cmp(decoded, "fo") == 0);
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grpc_slice_unref(decoded);
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decoded = grpc_base64_decode("Zg", 0);
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GPR_ASSERT(!GRPC_SLICE_IS_EMPTY(decoded));
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GPR_ASSERT(grpc_slice_str_cmp(decoded, "f") == 0);
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grpc_slice_unref(decoded);
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decoded = grpc_base64_decode("", 0);
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GPR_ASSERT(GRPC_SLICE_IS_EMPTY(decoded));
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}
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int main(int argc, char** argv) {
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grpc::testing::TestEnvironment env(argc, argv);
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grpc_init();
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test_simple_encode_decode_b64_no_multiline();
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test_simple_encode_decode_b64_multiline();
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test_simple_encode_decode_b64_urlsafe_no_multiline();
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test_simple_encode_decode_b64_urlsafe_multiline();
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test_full_range_encode_decode_b64_no_multiline();
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test_full_range_encode_decode_b64_multiline();
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test_full_range_encode_decode_b64_urlsafe_no_multiline();
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test_full_range_encode_decode_b64_urlsafe_multiline();
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test_url_safe_unsafe_mismatch_failure();
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test_rfc4648_test_vectors();
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test_unpadded_decode();
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grpc_shutdown();
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return 0;
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}
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