tools/perf/tests/expr.c

   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 #include <string.h>
   7 #include <linux/zalloc.h>
   8
   9 static int test(struct expr_parse_ctx *ctx, const char *e, double val2)
  10 {
  11         double val;
  12
  13         if (expr__parse(&val, ctx, e, 1))
  14                 TEST_ASSERT_VAL("parse test failed", 0);
  15         TEST_ASSERT_VAL("unexpected value", val == val2);
  16         return 0;
  17 }
  18
  19 int test__expr(struct test *t __maybe_unused, int subtest __maybe_unused)
  20 {
  21         struct expr_id_data *val_ptr;
  22         const char *p;
  23         double val;
  24         int ret;
  25         struct expr_parse_ctx ctx;
  26
  27         expr__ctx_init(&ctx);
  28         expr__add_id_val(&ctx, strdup("FOO"), 1);
  29         expr__add_id_val(&ctx, strdup("BAR"), 2);
  30
  31         ret = test(&ctx, "1+1", 2);
  32         ret |= test(&ctx, "FOO+BAR", 3);
  33         ret |= test(&ctx, "(BAR/2)%2", 1);
  34         ret |= test(&ctx, "1 - -4",  5);
  35         ret |= test(&ctx, "(FOO-1)*2 + (BAR/2)%2 - -4",  5);
  36         ret |= test(&ctx, "1-1 | 1", 1);
  37         ret |= test(&ctx, "1-1 & 1", 0);
  38         ret |= test(&ctx, "min(1,2) + 1", 2);
  39         ret |= test(&ctx, "max(1,2) + 1", 3);
  40         ret |= test(&ctx, "1+1 if 3*4 else 0", 2);
  41         ret |= test(&ctx, "1.1 + 2.1", 3.2);
  42         ret |= test(&ctx, ".1 + 2.", 2.1);
  43         ret |= test(&ctx, "d_ratio(1, 2)", 0.5);
  44         ret |= test(&ctx, "d_ratio(2.5, 0)", 0);
  45         ret |= test(&ctx, "1.1 < 2.2", 1);
  46         ret |= test(&ctx, "2.2 > 1.1", 1);
  47         ret |= test(&ctx, "1.1 < 1.1", 0);
  48         ret |= test(&ctx, "2.2 > 2.2", 0);
  49         ret |= test(&ctx, "2.2 < 1.1", 0);
  50         ret |= test(&ctx, "1.1 > 2.2", 0);
  51
  52         if (ret)
  53                 return ret;
  54
  55         p = "FOO/0";
  56         ret = expr__parse(&val, &ctx, p, 1);
  57         TEST_ASSERT_VAL("division by zero", ret == -1);
  58
  59         p = "BAR/";
  60         ret = expr__parse(&val, &ctx, p, 1);
  61         TEST_ASSERT_VAL("missing operand", ret == -1);
  62
  63         expr__ctx_clear(&ctx);
  64         TEST_ASSERT_VAL("find other",
  65                         expr__find_other("FOO + BAR + BAZ + BOZO", "FOO",
  66                                          &ctx, 1) == 0);
  67         TEST_ASSERT_VAL("find other", hashmap__size(&ctx.ids) == 3);
  68         TEST_ASSERT_VAL("find other", hashmap__find(&ctx.ids, "BAR",
  69                                                     (void **)&val_ptr));
  70         TEST_ASSERT_VAL("find other", hashmap__find(&ctx.ids, "BAZ",
  71                                                     (void **)&val_ptr));
  72         TEST_ASSERT_VAL("find other", hashmap__find(&ctx.ids, "BOZO",
  73                                                     (void **)&val_ptr));
  74
  75         expr__ctx_clear(&ctx);
  76         TEST_ASSERT_VAL("find other",
  77                         expr__find_other("EVENT1\\,param\\=?@ + EVENT2\\,param\\=?@",
  78                                          NULL, &ctx, 3) == 0);
  79         TEST_ASSERT_VAL("find other", hashmap__size(&ctx.ids) == 2);
  80         TEST_ASSERT_VAL("find other", hashmap__find(&ctx.ids, "EVENT1,param=3/",
  81                                                     (void **)&val_ptr));
  82         TEST_ASSERT_VAL("find other", hashmap__find(&ctx.ids, "EVENT2,param=3/",
  83                                                     (void **)&val_ptr));
  84
  85         expr__ctx_clear(&ctx);
  86
  87         return 0;
  88 }