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// SPDX-License-Identifier: GPL-2.0
#include "util/debug.h"
#include "util/expr.h"
#include "tests.h"
#include <stdlib.h>
#include <string.h>
#include <linux/zalloc.h>
static int test(struct parse_ctx *ctx, const char *e, double val2)
{
double val;
if (expr__parse(&val, ctx, e))
TEST_ASSERT_VAL("parse test failed", 0);
TEST_ASSERT_VAL("unexpected value", val == val2);
return 0;
}
int test__expr(struct test *t __maybe_unused, int subtest __maybe_unused)
{
const char *p;
const char **other;
double val;
int i, ret;
struct parse_ctx ctx;
int num_other;
expr__ctx_init(&ctx);
expr__add_id(&ctx, "FOO", 1);
expr__add_id(&ctx, "BAR", 2);
ret = test(&ctx, "1+1", 2);
ret |= test(&ctx, "FOO+BAR", 3);
ret |= test(&ctx, "(BAR/2)%2", 1);
ret |= test(&ctx, "1 - -4", 5);
ret |= test(&ctx, "(FOO-1)*2 + (BAR/2)%2 - -4", 5);
ret |= test(&ctx, "1-1 | 1", 1);
ret |= test(&ctx, "1-1 & 1", 0);
ret |= test(&ctx, "min(1,2) + 1", 2);
ret |= test(&ctx, "max(1,2) + 1", 3);
ret |= test(&ctx, "1+1 if 3*4 else 0", 2);
if (ret)
return ret;
p = "FOO/0";
ret = expr__parse(&val, &ctx, p);
TEST_ASSERT_VAL("division by zero", ret == -1);
p = "BAR/";
ret = expr__parse(&val, &ctx, p);
TEST_ASSERT_VAL("missing operand", ret == -1);
TEST_ASSERT_VAL("find other",
expr__find_other("FOO + BAR + BAZ + BOZO", "FOO", &other, &num_other) == 0);
TEST_ASSERT_VAL("find other", num_other == 3);
TEST_ASSERT_VAL("find other", !strcmp(other[0], "BAR"));
TEST_ASSERT_VAL("find other", !strcmp(other[1], "BAZ"));
TEST_ASSERT_VAL("find other", !strcmp(other[2], "BOZO"));
TEST_ASSERT_VAL("find other", other[3] == NULL);
for (i = 0; i < num_other; i++)
zfree(&other[i]);
free((void *)other);
return 0;
}
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