161 lines
3.5 KiB
C
161 lines
3.5 KiB
C
/*
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Copyright 2020 Google LLC
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Use of this source code is governed by a BSD-style
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license that can be found in the LICENSE file or at
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https://developers.google.com/open-source/licenses/bsd
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*/
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#include "test-lib.h"
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#include "reftable/basics.h"
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struct integer_needle_lesseq_args {
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int needle;
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int *haystack;
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};
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static int integer_needle_lesseq(size_t i, void *_args)
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{
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struct integer_needle_lesseq_args *args = _args;
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return args->needle <= args->haystack[i];
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}
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static void test_binsearch(void)
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{
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int haystack[] = { 2, 4, 6, 8, 10 };
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struct {
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int needle;
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size_t expected_idx;
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} testcases[] = {
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{-9000, 0},
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{-1, 0},
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{0, 0},
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{2, 0},
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{3, 1},
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{4, 1},
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{7, 3},
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{9, 4},
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{10, 4},
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{11, 5},
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{9000, 5},
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};
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for (size_t i = 0; i < ARRAY_SIZE(testcases); i++) {
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struct integer_needle_lesseq_args args = {
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.haystack = haystack,
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.needle = testcases[i].needle,
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};
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size_t idx;
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idx = binsearch(ARRAY_SIZE(haystack), &integer_needle_lesseq, &args);
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check_int(idx, ==, testcases[i].expected_idx);
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}
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}
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static void test_names_length(void)
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{
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const char *a[] = { "a", "b", NULL };
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check_int(names_length(a), ==, 2);
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}
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static void test_names_equal(void)
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{
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const char *a[] = { "a", "b", "c", NULL };
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const char *b[] = { "a", "b", "d", NULL };
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const char *c[] = { "a", "b", NULL };
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check(names_equal(a, a));
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check(!names_equal(a, b));
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check(!names_equal(a, c));
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}
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static void test_parse_names_normal(void)
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{
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char in1[] = "line\n";
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char in2[] = "a\nb\nc";
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char **out = NULL;
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parse_names(in1, strlen(in1), &out);
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check_str(out[0], "line");
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check(!out[1]);
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free_names(out);
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parse_names(in2, strlen(in2), &out);
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check_str(out[0], "a");
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check_str(out[1], "b");
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check_str(out[2], "c");
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check(!out[3]);
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free_names(out);
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}
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static void test_parse_names_drop_empty(void)
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{
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char in[] = "a\n\nb\n";
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char **out = NULL;
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parse_names(in, strlen(in), &out);
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check_str(out[0], "a");
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/* simply '\n' should be dropped as empty string */
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check_str(out[1], "b");
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check(!out[2]);
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free_names(out);
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}
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static void test_common_prefix(void)
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{
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struct strbuf a = STRBUF_INIT;
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struct strbuf b = STRBUF_INIT;
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struct {
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const char *a, *b;
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int want;
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} cases[] = {
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{"abcdef", "abc", 3},
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{ "abc", "ab", 2 },
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{ "", "abc", 0 },
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{ "abc", "abd", 2 },
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{ "abc", "pqr", 0 },
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};
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for (size_t i = 0; i < ARRAY_SIZE(cases); i++) {
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strbuf_addstr(&a, cases[i].a);
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strbuf_addstr(&b, cases[i].b);
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check_int(common_prefix_size(&a, &b), ==, cases[i].want);
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strbuf_reset(&a);
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strbuf_reset(&b);
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}
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strbuf_release(&a);
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strbuf_release(&b);
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}
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static void test_u24_roundtrip(void)
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{
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uint32_t in = 0x112233;
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uint8_t dest[3];
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uint32_t out;
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put_be24(dest, in);
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out = get_be24(dest);
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check_int(in, ==, out);
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}
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static void test_u16_roundtrip(void)
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{
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uint32_t in = 0xfef1;
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uint8_t dest[3];
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uint32_t out;
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put_be16(dest, in);
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out = get_be16(dest);
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check_int(in, ==, out);
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}
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int cmd_main(int argc, const char *argv[])
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{
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TEST(test_common_prefix(), "common_prefix_size works");
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TEST(test_parse_names_normal(), "parse_names works for basic input");
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TEST(test_parse_names_drop_empty(), "parse_names drops empty string");
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TEST(test_binsearch(), "binary search with binsearch works");
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TEST(test_names_length(), "names_length retuns size of a NULL-terminated string array");
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TEST(test_names_equal(), "names_equal compares NULL-terminated string arrays");
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TEST(test_u24_roundtrip(), "put_be24 and get_be24 work");
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TEST(test_u16_roundtrip(), "put_be16 and get_be16 work");
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return test_done();
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}
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