tools/perf/tests/expr.c

   1 #include "util/debug.h"
   2 #include "util/expr.h"
   3 #include "tests.h"
   4 #include <stdlib.h>
   5
   6 static 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
  16 int test__expr(struct test *t __maybe_unused, 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         ret |= test(&ctx, "1-1 | 1", 1);
  35         ret |= test(&ctx, "1-1 & 1", 0);
  36         ret |= test(&ctx, "min(1,2) + 1", 2);
  37         ret |= test(&ctx, "max(1,2) + 1", 3);
  38         ret |= test(&ctx, "1+1 if 3*4 else 0", 2);
  39
  40         if (ret)
  41                 return ret;
  42
  43         p = "FOO/0";
  44         ret = expr__parse(&val, &ctx, &p);
  45         TEST_ASSERT_VAL("division by zero", ret == 1);
  46
  47         p = "BAR/";
  48         ret = expr__parse(&val, &ctx, &p);
  49         TEST_ASSERT_VAL("missing operand", ret == 1);
  50
  51         TEST_ASSERT_VAL("find other",
  52                         expr__find_other("FOO + BAR + BAZ + BOZO", "FOO", &other, &num_other) == 0);
  53         TEST_ASSERT_VAL("find other", num_other == 3);
  54         TEST_ASSERT_VAL("find other", !strcmp(other[0], "BAR"));
  55         TEST_ASSERT_VAL("find other", !strcmp(other[1], "BAZ"));
  56         TEST_ASSERT_VAL("find other", !strcmp(other[2], "BOZO"));
  57         TEST_ASSERT_VAL("find other", other[3] == NULL);
  58         free((void *)other);
  59
  60         return 0;
  61 }