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Linux/tools/perf/tests/expr.c

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  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 }
 89 

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