Add CRC checksums to EBG and turns data

2018-02-01 10:00:15 -05:00
parent 10de243556
commit 9e93f198ae
25 changed files with 432 additions and 110 deletions
@@ -0,0 +1,96 @@
+#include "util/connectivity_checksum.hpp"
+
+#include <boost/test/test_case_template.hpp>
+#include <boost/test/unit_test.hpp>
+
+BOOST_AUTO_TEST_SUITE(connectivity_checksum)
+
+using namespace osrm;
+using namespace osrm::util;
+
+BOOST_AUTO_TEST_CASE(connectivity_checksum)
+{
+    ConnectivityChecksum checksum;
+
+    BOOST_CHECK_EQUAL(checksum.update_checksum(42), 42);
+
+    checksum.process_bit(1);
+    BOOST_CHECK_EQUAL(checksum.update_checksum(0), 0x7ebe16cd);
+
+    for (std::size_t i = 0; i < CHAR_BIT; ++i)
+        checksum.process_bit(1);
+    BOOST_CHECK_EQUAL(checksum.update_checksum(0), 0x1aab001b);
+
+    checksum.process_byte(1);
+    BOOST_CHECK_EQUAL(checksum.update_checksum(0), 0x2f7abdf7);
+}
+
+BOOST_AUTO_TEST_CASE(connectivity_checksum_bytes_bits)
+{
+    ConnectivityChecksum checksum1, checksum2;
+
+    checksum1.process_bit(1); // A
+    checksum1.process_bit(0);
+    checksum1.process_bit(1);
+    checksum1.process_bit(0);
+
+    checksum1.process_bit(1); // 9
+    checksum1.process_bit(0);
+    checksum1.process_bit(0);
+    checksum1.process_bit(1);
+
+    checksum1.process_bit(1); // 5
+    checksum1.process_bit(0);
+    checksum1.process_bit(1);
+
+    checksum2.process_byte(0xA9);
+    checksum2.process_byte(0x05);
+    BOOST_CHECK_EQUAL(checksum1.update_checksum(0), checksum2.update_checksum(0));
+}
+
+BOOST_AUTO_TEST_CASE(connectivity_checksum_diff_size)
+{
+    ConnectivityChecksum checksum1, checksum2;
+
+    checksum1.process_byte(1);
+    checksum1.process_byte(2);
+    checksum1.process_byte(3);
+    checksum1.process_byte(4);
+    checksum1.process_byte(5);
+    checksum1.process_bit(1);
+
+    checksum2.process_byte(1);
+    checksum2.process_byte(2);
+    checksum2.process_byte(3);
+    checksum2.update_checksum(0);
+    checksum2.process_byte(4);
+    checksum2.process_byte(5);
+    checksum2.process_bit(1);
+
+    BOOST_CHECK_EQUAL(checksum1.update_checksum(0), checksum2.update_checksum(0));
+}
+
+BOOST_AUTO_TEST_CASE(connectivity_checksum_parallel)
+{
+    ConnectivityChecksum expected, checksum1, checksum2;
+
+    expected.process_byte(1);
+    expected.process_byte(2);
+    expected.process_byte(3);
+    expected.process_byte(4);
+    expected.process_byte(5);
+    expected.process_bit(1);
+
+    checksum1.process_byte(1);
+    checksum1.process_byte(2);
+    checksum1.process_byte(3);
+
+    checksum2.process_byte(4);
+    checksum2.process_byte(5);
+    checksum2.process_bit(1);
+
+    BOOST_CHECK_EQUAL(expected.update_checksum(0),
+                      checksum2.update_checksum(checksum1.update_checksum(0)));
+}
+
+BOOST_AUTO_TEST_SUITE_END()