| /* |
| * |
| * Copyright 2014, Google Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| */ |
| |
| #include <grpc/support/slice.h> |
| |
| #include <string.h> |
| |
| #include <grpc/support/log.h> |
| #include "test/core/util/test_config.h" |
| |
| #define LOG_TEST_NAME() gpr_log(GPR_INFO, "%s", __FUNCTION__); |
| |
| static void test_slice_malloc_returns_something_sensible() { |
| /* Calls gpr_slice_create for various lengths and verifies the internals for |
| consistency. */ |
| size_t length; |
| size_t i; |
| gpr_slice slice; |
| |
| LOG_TEST_NAME(); |
| |
| for (length = 0; length <= 1024; length++) { |
| slice = gpr_slice_malloc(length); |
| /* If there is a length, slice.data must be non-NULL. If length is zero |
| we don't care. */ |
| if (length) { |
| GPR_ASSERT(GPR_SLICE_START_PTR(slice)); |
| } |
| /* Returned slice length must be what was requested. */ |
| GPR_ASSERT(GPR_SLICE_LENGTH(slice) == length); |
| /* If the slice has a refcount, it must be destroyable. */ |
| if (slice.refcount) { |
| GPR_ASSERT(slice.refcount->ref != NULL); |
| GPR_ASSERT(slice.refcount->unref != NULL); |
| } |
| /* We must be able to write to every byte of the data */ |
| for (i = 0; i < length; i++) { |
| GPR_SLICE_START_PTR(slice)[i] = (char)i; |
| } |
| /* And finally we must succeed in destroying the slice */ |
| gpr_slice_unref(slice); |
| } |
| } |
| |
| static void do_nothing(void *ignored) {} |
| |
| static void test_slice_new_returns_something_sensible() { |
| gpr_uint8 x; |
| |
| gpr_slice slice = gpr_slice_new(&x, 1, do_nothing); |
| GPR_ASSERT(slice.refcount); |
| GPR_ASSERT(slice.data.refcounted.bytes == &x); |
| GPR_ASSERT(slice.data.refcounted.length == 1); |
| gpr_slice_unref(slice); |
| } |
| |
| static int do_nothing_with_len_1_calls = 0; |
| |
| static void do_nothing_with_len_1(void *ignored, size_t len) { |
| GPR_ASSERT(len == 1); |
| do_nothing_with_len_1_calls++; |
| } |
| |
| static void test_slice_new_with_len_returns_something_sensible() { |
| gpr_uint8 x; |
| |
| gpr_slice slice = gpr_slice_new_with_len(&x, 1, do_nothing_with_len_1); |
| GPR_ASSERT(slice.refcount); |
| GPR_ASSERT(slice.data.refcounted.bytes == &x); |
| GPR_ASSERT(slice.data.refcounted.length == 1); |
| GPR_ASSERT(do_nothing_with_len_1_calls == 0); |
| gpr_slice_unref(slice); |
| GPR_ASSERT(do_nothing_with_len_1_calls == 1); |
| } |
| |
| static void test_slice_sub_works(int length) { |
| gpr_slice slice; |
| gpr_slice sub; |
| int i, j, k; |
| |
| LOG_TEST_NAME(); |
| gpr_log(GPR_INFO, "length=%d", length); |
| |
| /* Create a slice in which each byte is equal to the distance from it to the |
| beginning of the slice. */ |
| slice = gpr_slice_malloc(length); |
| for (i = 0; i < length; i++) { |
| GPR_SLICE_START_PTR(slice)[i] = i; |
| } |
| |
| /* Ensure that for all subsets length is correct and that we start on the |
| correct byte. Additionally check that no copies were made. */ |
| for (i = 0; i < length; i++) { |
| for (j = i; j < length; j++) { |
| sub = gpr_slice_sub(slice, i, j); |
| GPR_ASSERT(GPR_SLICE_LENGTH(sub) == j - i); |
| for (k = 0; k < j - i; k++) { |
| GPR_ASSERT(GPR_SLICE_START_PTR(sub)[k] == (gpr_uint8)(i + k)); |
| } |
| gpr_slice_unref(sub); |
| } |
| } |
| gpr_slice_unref(slice); |
| } |
| |
| static void check_head_tail(gpr_slice slice, gpr_slice head, gpr_slice tail) { |
| GPR_ASSERT(GPR_SLICE_LENGTH(slice) == |
| GPR_SLICE_LENGTH(head) + GPR_SLICE_LENGTH(tail)); |
| GPR_ASSERT(0 == memcmp(GPR_SLICE_START_PTR(slice), GPR_SLICE_START_PTR(head), |
| GPR_SLICE_LENGTH(head))); |
| GPR_ASSERT(0 == memcmp(GPR_SLICE_START_PTR(slice) + GPR_SLICE_LENGTH(head), |
| GPR_SLICE_START_PTR(tail), GPR_SLICE_LENGTH(tail))); |
| } |
| |
| static void test_slice_split_head_works(int length) { |
| gpr_slice slice; |
| gpr_slice head, tail; |
| int i; |
| |
| LOG_TEST_NAME(); |
| gpr_log(GPR_INFO, "length=%d", length); |
| |
| /* Create a slice in which each byte is equal to the distance from it to the |
| beginning of the slice. */ |
| slice = gpr_slice_malloc(length); |
| for (i = 0; i < length; i++) { |
| GPR_SLICE_START_PTR(slice)[i] = i; |
| } |
| |
| /* Ensure that for all subsets length is correct and that we start on the |
| correct byte. Additionally check that no copies were made. */ |
| for (i = 0; i < length; i++) { |
| tail = gpr_slice_ref(slice); |
| head = gpr_slice_split_head(&tail, i); |
| check_head_tail(slice, head, tail); |
| gpr_slice_unref(tail); |
| gpr_slice_unref(head); |
| } |
| |
| gpr_slice_unref(slice); |
| } |
| |
| static void test_slice_split_tail_works(int length) { |
| gpr_slice slice; |
| gpr_slice head, tail; |
| int i; |
| |
| LOG_TEST_NAME(); |
| gpr_log(GPR_INFO, "length=%d", length); |
| |
| /* Create a slice in which each byte is equal to the distance from it to the |
| beginning of the slice. */ |
| slice = gpr_slice_malloc(length); |
| for (i = 0; i < length; i++) { |
| GPR_SLICE_START_PTR(slice)[i] = i; |
| } |
| |
| /* Ensure that for all subsets length is correct and that we start on the |
| correct byte. Additionally check that no copies were made. */ |
| for (i = 0; i < length; i++) { |
| head = gpr_slice_ref(slice); |
| tail = gpr_slice_split_tail(&head, i); |
| check_head_tail(slice, head, tail); |
| gpr_slice_unref(tail); |
| gpr_slice_unref(head); |
| } |
| |
| gpr_slice_unref(slice); |
| } |
| |
| static void test_slice_from_copied_string_works() { |
| static const char *text = "HELLO WORLD!"; |
| gpr_slice slice; |
| |
| LOG_TEST_NAME(); |
| |
| slice = gpr_slice_from_copied_string(text); |
| GPR_ASSERT(strlen(text) == GPR_SLICE_LENGTH(slice)); |
| GPR_ASSERT(0 == |
| memcmp(text, GPR_SLICE_START_PTR(slice), GPR_SLICE_LENGTH(slice))); |
| gpr_slice_unref(slice); |
| } |
| |
| int main(int argc, char **argv) { |
| int length; |
| grpc_test_init(argc, argv); |
| test_slice_malloc_returns_something_sensible(); |
| test_slice_new_returns_something_sensible(); |
| test_slice_new_with_len_returns_something_sensible(); |
| for (length = 0; length < 128; length++) { |
| test_slice_sub_works(length); |
| test_slice_split_head_works(length); |
| test_slice_split_tail_works(length); |
| } |
| test_slice_from_copied_string_works(); |
| return 0; |
| } |