1// SPDX-License-Identifier: GPL-2.0
 2#include "util/debug.h"
 3#include "util/expr.h"
 4#include "tests.h"
 5#include <stdlib.h>
 6
 7static int test(struct parse_ctx *ctx, const char *e, double val2)
 8{
 9	double val;
10
11	if (expr__parse(&val, ctx, &e))
12		TEST_ASSERT_VAL("parse test failed", 0);
13	TEST_ASSERT_VAL("unexpected value", val == val2);
14	return 0;
15}
16
17int test__expr(struct test *t __maybe_unused, int subtest __maybe_unused)
18{
19	const char *p;
20	const char **other;
21	double val;
22	int ret;
23	struct parse_ctx ctx;
24	int num_other;
25
26	expr__ctx_init(&ctx);
27	expr__add_id(&ctx, "FOO", 1);
28	expr__add_id(&ctx, "BAR", 2);
29
30	ret = test(&ctx, "1+1", 2);
31	ret |= test(&ctx, "FOO+BAR", 3);
32	ret |= test(&ctx, "(BAR/2)%2", 1);
33	ret |= test(&ctx, "1 - -4",  5);
34	ret |= test(&ctx, "(FOO-1)*2 + (BAR/2)%2 - -4",  5);
35	ret |= test(&ctx, "1-1 | 1", 1);
36	ret |= test(&ctx, "1-1 & 1", 0);
37	ret |= test(&ctx, "min(1,2) + 1", 2);
38	ret |= test(&ctx, "max(1,2) + 1", 3);
39	ret |= test(&ctx, "1+1 if 3*4 else 0", 2);
40
41	if (ret)
42		return ret;
43
44	p = "FOO/0";
45	ret = expr__parse(&val, &ctx, &p);
46	TEST_ASSERT_VAL("division by zero", ret == 1);
47
48	p = "BAR/";
49	ret = expr__parse(&val, &ctx, &p);
50	TEST_ASSERT_VAL("missing operand", ret == 1);
51
52	TEST_ASSERT_VAL("find other",
53			expr__find_other("FOO + BAR + BAZ + BOZO", "FOO", &other, &num_other) == 0);
54	TEST_ASSERT_VAL("find other", num_other == 3);
55	TEST_ASSERT_VAL("find other", !strcmp(other[0], "BAR"));
56	TEST_ASSERT_VAL("find other", !strcmp(other[1], "BAZ"));
57	TEST_ASSERT_VAL("find other", !strcmp(other[2], "BOZO"));
58	TEST_ASSERT_VAL("find other", other[3] == NULL);
59	free((void *)other);
60
61	return 0;
62}