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// SPDX-License-Identifier: GPL-2.0
#include "util/debug.h"
#include "util/expr.h"
#include "util/smt.h"
#include "tests.h"
#include <stdlib.h>
#include <string.h>
#include <linux/zalloc.h>
static int test_ids_union(void)
{
struct hashmap *ids1, *ids2;
/* Empty union. */
ids1 = ids__new();
TEST_ASSERT_VAL("ids__new", ids1);
ids2 = ids__new();
TEST_ASSERT_VAL("ids__new", ids2);
ids1 = ids__union(ids1, ids2);
TEST_ASSERT_EQUAL("union", (int)hashmap__size(ids1), 0);
/* Union {foo, bar} against {}. */
ids2 = ids__new();
TEST_ASSERT_VAL("ids__new", ids2);
TEST_ASSERT_EQUAL("ids__insert", ids__insert(ids1, strdup("foo")), 0);
TEST_ASSERT_EQUAL("ids__insert", ids__insert(ids1, strdup("bar")), 0);
ids1 = ids__union(ids1, ids2);
TEST_ASSERT_EQUAL("union", (int)hashmap__size(ids1), 2);
/* Union {foo, bar} against {foo}. */
ids2 = ids__new();
TEST_ASSERT_VAL("ids__new", ids2);
TEST_ASSERT_EQUAL("ids__insert", ids__insert(ids2, strdup("foo")), 0);
ids1 = ids__union(ids1, ids2);
TEST_ASSERT_EQUAL("union", (int)hashmap__size(ids1), 2);
/* Union {foo, bar} against {bar,baz}. */
ids2 = ids__new();
TEST_ASSERT_VAL("ids__new", ids2);
TEST_ASSERT_EQUAL("ids__insert", ids__insert(ids2, strdup("bar")), 0);
TEST_ASSERT_EQUAL("ids__insert", ids__insert(ids2, strdup("baz")), 0);
ids1 = ids__union(ids1, ids2);
TEST_ASSERT_EQUAL("union", (int)hashmap__size(ids1), 3);
ids__free(ids1);
return 0;
}
static int test(struct expr_parse_ctx *ctx, const char *e, double val2)
{
double val;
if (expr__parse(&val, ctx, e))
TEST_ASSERT_VAL("parse test failed", 0);
TEST_ASSERT_VAL("unexpected value", val == val2);
return 0;
}
static int test__expr(struct test *t __maybe_unused, int subtest __maybe_unused)
{
struct expr_id_data *val_ptr;
const char *p;
double val;
int ret;
struct expr_parse_ctx *ctx;
TEST_ASSERT_EQUAL("ids_union", test_ids_union(), 0);
ctx = expr__ctx_new();
TEST_ASSERT_VAL("expr__ctx_new", ctx);
expr__add_id_val(ctx, strdup("FOO"), 1);
expr__add_id_val(ctx, strdup("BAR"), 2);
ret = test(ctx, "1+1", 2);
ret |= test(ctx, "FOO+BAR", 3);
ret |= test(ctx, "(BAR/2)%2", 1);
ret |= test(ctx, "1 - -4", 5);
ret |= test(ctx, "(FOO-1)*2 + (BAR/2)%2 - -4", 5);
ret |= test(ctx, "1-1 | 1", 1);
ret |= test(ctx, "1-1 & 1", 0);
ret |= test(ctx, "min(1,2) + 1", 2);
ret |= test(ctx, "max(1,2) + 1", 3);
ret |= test(ctx, "1+1 if 3*4 else 0", 2);
ret |= test(ctx, "1.1 + 2.1", 3.2);
ret |= test(ctx, ".1 + 2.", 2.1);
ret |= test(ctx, "d_ratio(1, 2)", 0.5);
ret |= test(ctx, "d_ratio(2.5, 0)", 0);
ret |= test(ctx, "1.1 < 2.2", 1);
ret |= test(ctx, "2.2 > 1.1", 1);
ret |= test(ctx, "1.1 < 1.1", 0);
ret |= test(ctx, "2.2 > 2.2", 0);
ret |= test(ctx, "2.2 < 1.1", 0);
ret |= test(ctx, "1.1 > 2.2", 0);
if (ret) {
expr__ctx_free(ctx);
return ret;
}
p = "FOO/0";
ret = expr__parse(&val, ctx, p);
TEST_ASSERT_VAL("division by zero", ret == -1);
p = "BAR/";
ret = expr__parse(&val, ctx, p);
TEST_ASSERT_VAL("missing operand", ret == -1);
expr__ctx_clear(ctx);
TEST_ASSERT_VAL("find ids",
expr__find_ids("FOO + BAR + BAZ + BOZO", "FOO",
ctx) == 0);
TEST_ASSERT_VAL("find ids", hashmap__size(ctx->ids) == 3);
TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "BAR",
(void **)&val_ptr));
TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "BAZ",
(void **)&val_ptr));
TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "BOZO",
(void **)&val_ptr));
expr__ctx_clear(ctx);
ctx->runtime = 3;
TEST_ASSERT_VAL("find ids",
expr__find_ids("EVENT1\\,param\\=?@ + EVENT2\\,param\\=?@",
NULL, ctx) == 0);
TEST_ASSERT_VAL("find ids", hashmap__size(ctx->ids) == 2);
TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "EVENT1,param=3@",
(void **)&val_ptr));
TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "EVENT2,param=3@",
(void **)&val_ptr));
/* Only EVENT1 or EVENT2 need be measured depending on the value of smt_on. */
expr__ctx_clear(ctx);
TEST_ASSERT_VAL("find ids",
expr__find_ids("EVENT1 if #smt_on else EVENT2",
NULL, ctx) == 0);
TEST_ASSERT_VAL("find ids", hashmap__size(ctx->ids) == 1);
TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids,
smt_on() ? "EVENT1" : "EVENT2",
(void **)&val_ptr));
/* The expression is a constant 1.0 without needing to evaluate EVENT1. */
expr__ctx_clear(ctx);
TEST_ASSERT_VAL("find ids",
expr__find_ids("1.0 if EVENT1 > 100.0 else 1.0",
NULL, ctx) == 0);
TEST_ASSERT_VAL("find ids", hashmap__size(ctx->ids) == 0);
expr__ctx_free(ctx);
return 0;
}
DEFINE_SUITE("Simple expression parser", expr);
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