| // Copyright 2021 The Fuchsia Authors |
| // |
| // Use of this source code is governed by a MIT-style |
| // license that can be found in the LICENSE file or at |
| // https://opensource.org/licenses/MIT |
| |
| #include <lib/unittest/unittest.h> |
| |
| #include <kernel/range_check.h> |
| |
| static bool test_range_check() { |
| BEGIN_TEST; |
| |
| EXPECT_TRUE(InRange(0u, 1024u, 4096u)); // [0, 1024) is within [0, 4096) |
| EXPECT_TRUE(InRange(0u, 1024u, 0u, 4096u)); // [0, 1024) is within [0, 4096) |
| EXPECT_FALSE(InRange(0u, 1024u, 1u, 4096u)); // [0, 1024) is not within [1, 4096) |
| EXPECT_TRUE(InRange(0u, 1024u, 0u, 1024u)); // [0, 1024) is within [0, 1024) |
| EXPECT_FALSE(InRange(0u, 1024u, 0u, 1023u)); // [0, 1024) is not within [0, 1023) |
| |
| // offset < min tests; (underflow) |
| EXPECT_FALSE(InRange(32768u, 1024u, 524288u, 1048576u)); |
| |
| EXPECT_FALSE(InRange(4000u, 1000u, 4500u, 5500u)); // Right overlap |
| EXPECT_FALSE(InRange(5000u, 1000u, 4500u, 5500u)); // Left overlap |
| EXPECT_FALSE(InRange(4000u, 2000u, 4500u, 5500u)); // Full overlap |
| |
| END_TEST; |
| } |
| |
| UNITTEST_START_TESTCASE(range_check_tests) |
| UNITTEST("basic test of range checks", test_range_check) |
| UNITTEST_END_TESTCASE(range_check_tests, "range_check_tests", "Tests of range_check.h") |