LXR linux/tools/perf/tests/expr.c

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