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authorDave Airlie <[email protected]>2019-04-29 12:24:58 +1000
committerDave Airlie <[email protected]>2019-05-03 15:23:04 +1000
commit18973a450ed986a0f56aa35b14c8e9fd9260f168 (patch)
treeea59a8c6c914fd0d06fd976deaf74f96d82a1dbb
parent6fd6246d92cde32426aafa3d0748f03f403f8f1b (diff)
util/tests: add basic unit tests for bitset
The last test here currently fails as there is a bug in bitset.h Reviewed-by: Kristian H. Kristensen <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]>
-rw-r--r--src/util/bitset_test.cpp129
-rw-r--r--src/util/meson.build12
2 files changed, 141 insertions, 0 deletions
diff --git a/src/util/bitset_test.cpp b/src/util/bitset_test.cpp
new file mode 100644
index 00000000000..c848e2a795f
--- /dev/null
+++ b/src/util/bitset_test.cpp
@@ -0,0 +1,129 @@
+/*
+ * Copyright © 2019 Red Hat
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include <gtest/gtest.h>
+#include "util/bitset.h"
+
+TEST(bitset, sizes)
+{
+ EXPECT_EQ(sizeof(BITSET_WORD), 4);
+
+ BITSET_DECLARE(mask32, 32);
+ BITSET_DECLARE(mask64, 64);
+ BITSET_DECLARE(mask128, 128);
+
+ EXPECT_EQ(sizeof(mask32), 4);
+ EXPECT_EQ(sizeof(mask64), 8);
+ EXPECT_EQ(sizeof(mask128), 16);
+}
+
+TEST(bitset, testsetclear)
+{
+ BITSET_DECLARE(mask128, 128);
+ BITSET_ZERO(mask128);
+
+ for (int i = 0; i < 128; i++) {
+ EXPECT_EQ(BITSET_TEST(mask128, i), false);
+ BITSET_SET(mask128, i);
+ EXPECT_EQ(BITSET_TEST(mask128, i), true);
+ BITSET_CLEAR(mask128, i);
+ EXPECT_EQ(BITSET_TEST(mask128, i), false);
+ }
+}
+
+TEST(bitset, testsetones)
+{
+ BITSET_DECLARE(mask128, 128);
+ BITSET_ONES(mask128);
+
+ EXPECT_EQ(BITSET_FFS(mask128), 1);
+
+ for (int i = 0; i < 128; i++) {
+ EXPECT_EQ(BITSET_TEST(mask128, i), true);
+ BITSET_CLEAR(mask128, i);
+ EXPECT_EQ(BITSET_TEST(mask128, i), false);
+ BITSET_SET(mask128, i);
+ EXPECT_EQ(BITSET_TEST(mask128, i), true);
+ }
+}
+
+TEST(bitset, testbasicrange)
+{
+ BITSET_DECLARE(mask128, 128);
+ BITSET_ZERO(mask128);
+
+ const int max_set = 15;
+ BITSET_SET_RANGE(mask128, 0, max_set);
+ EXPECT_EQ(BITSET_TEST_RANGE(mask128, 0, max_set), true);
+ EXPECT_EQ(BITSET_TEST_RANGE(mask128, max_set + 1, max_set + 15), false);
+ for (int i = 0; i < 128; i++) {
+ if (i <= max_set)
+ EXPECT_EQ(BITSET_TEST(mask128, i), true);
+ else
+ EXPECT_EQ(BITSET_TEST(mask128, i), false);
+ }
+ BITSET_CLEAR_RANGE(mask128, 0, max_set);
+ EXPECT_EQ(BITSET_TEST_RANGE(mask128, 0, max_set), false);
+ for (int i = 0; i < 128; i++) {
+ EXPECT_EQ(BITSET_TEST(mask128, i), false);
+ }
+}
+
+TEST(bitset, testbitsetffs)
+{
+ BITSET_DECLARE(mask128, 128);
+ BITSET_ZERO(mask128);
+
+ EXPECT_EQ(BITSET_FFS(mask128), 0);
+
+ BITSET_SET(mask128, 14);
+ EXPECT_EQ(BITSET_FFS(mask128), 15);
+
+ BITSET_SET(mask128, 28);
+ EXPECT_EQ(BITSET_FFS(mask128), 15);
+
+ BITSET_CLEAR(mask128, 14);
+ EXPECT_EQ(BITSET_FFS(mask128), 29);
+
+ BITSET_SET_RANGE(mask128, 14, 18);
+ EXPECT_EQ(BITSET_FFS(mask128), 15);
+}
+
+TEST(bitset, testrangebits)
+{
+ BITSET_DECLARE(mask128, 128);
+ BITSET_ZERO(mask128);
+
+ BITSET_SET_RANGE(mask128, 0, 31);
+ BITSET_SET_RANGE(mask128, 32, 63);
+ BITSET_SET_RANGE(mask128, 64, 95);
+ BITSET_SET_RANGE(mask128, 96, 127);
+
+ EXPECT_EQ(BITSET_TEST_RANGE(mask128, 0, 31), true);
+ EXPECT_EQ(BITSET_TEST_RANGE(mask128, 32, 63), true);
+ EXPECT_EQ(BITSET_TEST_RANGE(mask128, 64, 95), true);
+ EXPECT_EQ(BITSET_TEST_RANGE(mask128, 96, 127), true);
+ for (int i = 0; i < 128; i++) {
+ EXPECT_EQ(BITSET_TEST(mask128, i), true);
+ }
+}
diff --git a/src/util/meson.build b/src/util/meson.build
index 489b6df1710..dbb903218f2 100644
--- a/src/util/meson.build
+++ b/src/util/meson.build
@@ -195,6 +195,18 @@ if with_tests
suite : ['util'],
)
+ test(
+ 'bitset',
+ executable(
+ 'bitset_test',
+ files('bitset_test.cpp'),
+ include_directories : inc_common,
+ dependencies : [dep_thread, dep_dl, idep_gtest],
+ link_with : libmesa_util,
+ ),
+ suite : ['util'],
+ )
+
subdir('tests/fast_idiv_by_const')
subdir('tests/hash_table')
subdir('tests/string_buffer')