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fix(json_render): json_render is not accurate enough for extremely sm… (#6531)

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This commit is contained in:
zephyr
2023-02-03 01:58:25 +08:00
committed by GitHub
parent 376282d946
commit ebd9ab4548
7 changed files with 81 additions and 20 deletions
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unit_tests/util/json_render.cpp
+65 -1
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@@ -16,7 +16,7 @@ BOOST_AUTO_TEST_CASE(number_truncating)
// this number would have more than 10 decimals if not truncated
renderer(Number{42.9995999594999399299});
BOOST_CHECK_EQUAL(str, "42.999599959");
BOOST_CHECK_EQUAL(str, "42.99959996");
}
BOOST_AUTO_TEST_CASE(integer)
@@ -27,4 +27,68 @@ BOOST_AUTO_TEST_CASE(integer)
BOOST_CHECK_EQUAL(str, "42");
}
BOOST_AUTO_TEST_CASE(test_json_issue_6531)
{
std::string output;
osrm::util::json::Renderer<std::string> renderer(output);
renderer(0.0000000000017114087924596788);
BOOST_CHECK_EQUAL(output, "1.711408792e-12");
output.clear();
renderer(42.0);
BOOST_CHECK_EQUAL(output, "42");
output.clear();
renderer(42.1);
BOOST_CHECK_EQUAL(output, "42.1");
output.clear();
renderer(42.12);
BOOST_CHECK_EQUAL(output, "42.12");
output.clear();
renderer(42.123);
BOOST_CHECK_EQUAL(output, "42.123");
output.clear();
renderer(42.1234);
BOOST_CHECK_EQUAL(output, "42.1234");
output.clear();
renderer(42.12345);
BOOST_CHECK_EQUAL(output, "42.12345");
output.clear();
renderer(42.123456);
BOOST_CHECK_EQUAL(output, "42.123456");
output.clear();
renderer(42.1234567);
BOOST_CHECK_EQUAL(output, "42.1234567");
output.clear();
renderer(42.12345678);
BOOST_CHECK_EQUAL(output, "42.12345678");
output.clear();
renderer(42.123456789);
BOOST_CHECK_EQUAL(output, "42.12345679");
output.clear();
renderer(0.12345678912345);
BOOST_CHECK_EQUAL(output, "0.1234567891");
output.clear();
renderer(0.123456789);
BOOST_CHECK_EQUAL(output, "0.123456789");
output.clear();
renderer(0.12345678916);
BOOST_CHECK_EQUAL(output, "0.1234567892");
output.clear();
renderer(123456789123456789);
BOOST_CHECK_EQUAL(output, "1.234567891e+17");
}
BOOST_AUTO_TEST_SUITE_END()