diff options
Diffstat (limited to 'lib/isc/tests/buffer_test.c')
| -rw-r--r-- | lib/isc/tests/buffer_test.c | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/lib/isc/tests/buffer_test.c b/lib/isc/tests/buffer_test.c new file mode 100644 index 0000000..a2d76cc --- /dev/null +++ b/lib/isc/tests/buffer_test.c @@ -0,0 +1,203 @@ +/* + * Copyright (C) Internet Systems Consortium, Inc. ("ISC") + * + * 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/. + * + * See the COPYRIGHT file distributed with this work for additional + * information regarding copyright ownership. + */ + +#include <config.h> +#include <stdlib.h> +#include <unistd.h> +#include <fcntl.h> + +#include <atf-c.h> + +#include "isctest.h" + +#include <isc/buffer.h> +#include <isc/result.h> + +ATF_TC(isc_buffer_reserve); +ATF_TC_HEAD(isc_buffer_reserve, tc) { + atf_tc_set_md_var(tc, "descr", "reserve space in dynamic buffers"); +} + +ATF_TC_BODY(isc_buffer_reserve, tc) { + isc_result_t result; + isc_buffer_t *b; + + result = isc_test_begin(NULL, true, 0); + ATF_REQUIRE_EQ(result, ISC_R_SUCCESS); + + b = NULL; + result = isc_buffer_allocate(mctx, &b, 1024); + ATF_CHECK_EQ(result, ISC_R_SUCCESS); + ATF_CHECK_EQ(b->length, 1024); + + /* + * 1024 bytes should already be available, so this call does + * nothing. + */ + result = isc_buffer_reserve(&b, 1024); + ATF_CHECK_EQ(result, ISC_R_SUCCESS); + ATF_CHECK(ISC_BUFFER_VALID(b)); + ATF_REQUIRE(b != NULL); + ATF_CHECK_EQ(b->length, 1024); + + /* + * This call should grow it to 2048 bytes as only 1024 bytes are + * available in the buffer. + */ + result = isc_buffer_reserve(&b, 1025); + ATF_CHECK_EQ(result, ISC_R_SUCCESS); + ATF_CHECK(ISC_BUFFER_VALID(b)); + ATF_REQUIRE(b != NULL); + ATF_CHECK_EQ(b->length, 2048); + + /* + * 2048 bytes should already be available, so this call does + * nothing. + */ + result = isc_buffer_reserve(&b, 2000); + ATF_CHECK_EQ(result, ISC_R_SUCCESS); + ATF_CHECK(ISC_BUFFER_VALID(b)); + ATF_REQUIRE(b != NULL); + ATF_CHECK_EQ(b->length, 2048); + + /* + * This call should grow it to 4096 bytes as only 2048 bytes are + * available in the buffer. + */ + result = isc_buffer_reserve(&b, 3000); + ATF_CHECK_EQ(result, ISC_R_SUCCESS); + ATF_CHECK(ISC_BUFFER_VALID(b)); + ATF_REQUIRE(b != NULL); + ATF_CHECK_EQ(b->length, 4096); + + /* Consume some of the buffer so we can run the next test. */ + isc_buffer_add(b, 4096); + + /* + * This call should fail and leave buffer untouched. + */ + result = isc_buffer_reserve(&b, UINT_MAX); + ATF_CHECK_EQ(result, ISC_R_NOMEMORY); + ATF_CHECK(ISC_BUFFER_VALID(b)); + ATF_REQUIRE(b != NULL); + ATF_CHECK_EQ(b->length, 4096); + + isc_buffer_free(&b); + + isc_test_end(); +} + +ATF_TC(isc_buffer_reallocate); +ATF_TC_HEAD(isc_buffer_reallocate, tc) { + atf_tc_set_md_var(tc, "descr", "reallocate dynamic buffers"); +} + +ATF_TC_BODY(isc_buffer_reallocate, tc) { + isc_result_t result; + isc_buffer_t *b; + + result = isc_test_begin(NULL, true, 0); + ATF_REQUIRE_EQ(result, ISC_R_SUCCESS); + + b = NULL; + result = isc_buffer_allocate(mctx, &b, 1024); + ATF_CHECK_EQ(result, ISC_R_SUCCESS); + ATF_REQUIRE(b != NULL); + ATF_CHECK_EQ(b->length, 1024); + + result = isc_buffer_reallocate(&b, 512); + ATF_CHECK_EQ(result, ISC_R_NOSPACE); + ATF_CHECK(ISC_BUFFER_VALID(b)); + ATF_REQUIRE(b != NULL); + ATF_CHECK_EQ(b->length, 1024); + + result = isc_buffer_reallocate(&b, 1536); + ATF_CHECK_EQ(result, ISC_R_SUCCESS); + ATF_CHECK(ISC_BUFFER_VALID(b)); + ATF_REQUIRE(b != NULL); + ATF_CHECK_EQ(b->length, 1536); + + isc_buffer_free(&b); + + isc_test_end(); +} + +ATF_TC(isc_buffer_dynamic); +ATF_TC_HEAD(isc_buffer_dynamic, tc) { + atf_tc_set_md_var(tc, "descr", "dynamic buffer automatic reallocation"); +} + +ATF_TC_BODY(isc_buffer_dynamic, tc) { + isc_result_t result; + isc_buffer_t *b; + size_t last_length = 10; + int i; + + result = isc_test_begin(NULL, true, 0); + ATF_REQUIRE_EQ(result, ISC_R_SUCCESS); + + b = NULL; + result = isc_buffer_allocate(mctx, &b, last_length); + ATF_CHECK_EQ(result, ISC_R_SUCCESS); + ATF_REQUIRE(b != NULL); + ATF_CHECK_EQ(b->length, last_length); + + isc_buffer_setautorealloc(b, true); + + isc_buffer_putuint8(b, 1); + + for (i = 0; i < 1000; i++) { + isc_buffer_putstr(b, "thisisa24charslongstring"); + } + ATF_CHECK(b->length-last_length >= 1000*24); + last_length+=1000*24; + + for (i = 0; i < 10000; i++) { + isc_buffer_putuint8(b, 1); + } + + ATF_CHECK(b->length-last_length >= 10000*1); + last_length += 10000*1; + + for (i = 0; i < 10000; i++) { + isc_buffer_putuint16(b, 1); + } + + ATF_CHECK(b->length-last_length >= 10000*2); + + last_length += 10000*2; + for (i = 0; i < 10000; i++) { + isc_buffer_putuint24(b, 1); + } + ATF_CHECK(b->length-last_length >= 10000*3); + + last_length+=10000*3; + + for (i = 0; i < 10000; i++) { + isc_buffer_putuint32(b, 1); + } + ATF_CHECK(b->length-last_length >= 10000*4); + + + isc_buffer_free(&b); + + isc_test_end(); +} + +/* + * Main + */ +ATF_TP_ADD_TCS(tp) { + ATF_TP_ADD_TC(tp, isc_buffer_reserve); + ATF_TP_ADD_TC(tp, isc_buffer_reallocate); + ATF_TP_ADD_TC(tp, isc_buffer_dynamic); + return (atf_no_error()); +} |