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 <linux/zalloc.h> 7 8 static int test(struct parse_ctx *ctx, const char *e, double val2) 9 { 10 double val; 11 12 if (expr__parse(&val, ctx, &e)) 13 TEST_ASSERT_VAL("parse test failed", 0); 14 TEST_ASSERT_VAL("unexpected value", val == val2); 15 return 0; 16 } 17 18 int test__expr(struct test *t __maybe_unused, int subtest __maybe_unused) 19 { 20 const char *p; 21 const char **other; 22 double val; 23 int i, ret; 24 struct parse_ctx ctx; 25 int num_other; 26 27 expr__ctx_init(&ctx); 28 expr__add_id(&ctx, "FOO", 1); 29 expr__add_id(&ctx, "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 42 if (ret) 43 return ret; 44 45 p = "FOO/0"; 46 ret = expr__parse(&val, &ctx, &p); 47 TEST_ASSERT_VAL("division by zero", ret == 1); 48 49 p = "BAR/"; 50 ret = expr__parse(&val, &ctx, &p); 51 TEST_ASSERT_VAL("missing operand", ret == 1); 52 53 TEST_ASSERT_VAL("find other", 54 expr__find_other("FOO + BAR + BAZ + BOZO", "FOO", &other, &num_other) == 0); 55 TEST_ASSERT_VAL("find other", num_other == 3); 56 TEST_ASSERT_VAL("find other", !strcmp(other[0], "BAR")); 57 TEST_ASSERT_VAL("find other", !strcmp(other[1], "BAZ")); 58 TEST_ASSERT_VAL("find other", !strcmp(other[2], "BOZO")); 59 TEST_ASSERT_VAL("find other", other[3] == NULL); 60 61 for (i = 0; i < num_other; i++) 62 zfree(&other[i]); 63 free((void *)other); 64 65 return 0; 66 } 67