xref: /openbmc/linux/tools/perf/tests/expr.c (revision 81f17c90)
107516736SAndi Kleen #include "util/debug.h"
207516736SAndi Kleen #include "util/expr.h"
307516736SAndi Kleen #include "tests.h"
407516736SAndi Kleen #include <stdlib.h>
507516736SAndi Kleen 
607516736SAndi Kleen static int test(struct parse_ctx *ctx, const char *e, double val2)
707516736SAndi Kleen {
807516736SAndi Kleen 	double val;
907516736SAndi Kleen 
1007516736SAndi Kleen 	if (expr__parse(&val, ctx, &e))
1107516736SAndi Kleen 		TEST_ASSERT_VAL("parse test failed", 0);
1207516736SAndi Kleen 	TEST_ASSERT_VAL("unexpected value", val == val2);
1307516736SAndi Kleen 	return 0;
1407516736SAndi Kleen }
1507516736SAndi Kleen 
1681f17c90SArnaldo Carvalho de Melo int test__expr(struct test *t __maybe_unused, int subtest __maybe_unused)
1707516736SAndi Kleen {
1807516736SAndi Kleen 	const char *p;
1907516736SAndi Kleen 	const char **other;
2007516736SAndi Kleen 	double val;
2107516736SAndi Kleen 	int ret;
2207516736SAndi Kleen 	struct parse_ctx ctx;
2307516736SAndi Kleen 	int num_other;
2407516736SAndi Kleen 
2507516736SAndi Kleen 	expr__ctx_init(&ctx);
2607516736SAndi Kleen 	expr__add_id(&ctx, "FOO", 1);
2707516736SAndi Kleen 	expr__add_id(&ctx, "BAR", 2);
2807516736SAndi Kleen 
2907516736SAndi Kleen 	ret = test(&ctx, "1+1", 2);
3007516736SAndi Kleen 	ret |= test(&ctx, "FOO+BAR", 3);
3107516736SAndi Kleen 	ret |= test(&ctx, "(BAR/2)%2", 1);
3207516736SAndi Kleen 	ret |= test(&ctx, "1 - -4",  5);
3307516736SAndi Kleen 	ret |= test(&ctx, "(FOO-1)*2 + (BAR/2)%2 - -4",  5);
3407516736SAndi Kleen 
3507516736SAndi Kleen 	if (ret)
3607516736SAndi Kleen 		return ret;
3707516736SAndi Kleen 
3807516736SAndi Kleen 	p = "FOO/0";
3907516736SAndi Kleen 	ret = expr__parse(&val, &ctx, &p);
4007516736SAndi Kleen 	TEST_ASSERT_VAL("division by zero", ret == 1);
4107516736SAndi Kleen 
4207516736SAndi Kleen 	p = "BAR/";
4307516736SAndi Kleen 	ret = expr__parse(&val, &ctx, &p);
4407516736SAndi Kleen 	TEST_ASSERT_VAL("missing operand", ret == 1);
4507516736SAndi Kleen 
4607516736SAndi Kleen 	TEST_ASSERT_VAL("find other",
4707516736SAndi Kleen 			expr__find_other("FOO + BAR + BAZ + BOZO", "FOO", &other, &num_other) == 0);
4807516736SAndi Kleen 	TEST_ASSERT_VAL("find other", num_other == 3);
4907516736SAndi Kleen 	TEST_ASSERT_VAL("find other", !strcmp(other[0], "BAR"));
5007516736SAndi Kleen 	TEST_ASSERT_VAL("find other", !strcmp(other[1], "BAZ"));
5107516736SAndi Kleen 	TEST_ASSERT_VAL("find other", !strcmp(other[2], "BOZO"));
5207516736SAndi Kleen 	TEST_ASSERT_VAL("find other", other[3] == NULL);
5307516736SAndi Kleen 	free((void *)other);
5407516736SAndi Kleen 
5507516736SAndi Kleen 	return 0;
5607516736SAndi Kleen }
57