diff --git a/configure.py b/configure.py
index 286b528de8..84331bfd27 100755
--- a/configure.py
+++ b/configure.py
@@ -248,6 +248,7 @@ scylla_tests = [
'tests/chunked_vector_test',
'tests/loading_cache_test',
'tests/castas_fcts_test',
+ 'tests/big_decimal_test',
]
apps = [
@@ -640,6 +641,7 @@ pure_boost_tests = set([
'tests/vint_serialization_test',
'tests/compress_test',
'tests/chunked_vector_test',
+ 'tests/big_decimal_test',
])
tests_not_using_seastar_test_framework = set([
diff --git a/test.py b/test.py
index 3adf51e248..d3c3b0fe85 100755
--- a/test.py
+++ b/test.py
@@ -91,6 +91,7 @@ boost_tests = [
'duration_test',
'loading_cache_test',
'castas_fcts_test',
+ 'big_decimal_test',
]
other_tests = [
diff --git a/tests/big_decimal_test.cc b/tests/big_decimal_test.cc
new file mode 100644
index 0000000000..c4369b45c9
--- /dev/null
+++ b/tests/big_decimal_test.cc
@@ -0,0 +1,135 @@
+/*
+ * Copyright (C) 2017 ScyllaDB
+ */
+
+/*
+ * This file is part of Scylla.
+ *
+ * Scylla is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ *
+ * (at your option) any later version.
+ *
+ * Scylla is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Scylla. If not, see .
+ */
+
+#define BOOST_TEST_MODULE big_decimal
+
+#include
+#include "utils/big_decimal.hh"
+
+#include "disk-error-handler.hh"
+
+thread_local disk_error_signal_type commit_error;
+thread_local disk_error_signal_type general_disk_error;
+
+namespace {
+
+void test_div(const char *r_cstr, const int64_t q, const char *expected_cstr) {
+ big_decimal r{r_cstr};
+ auto res = r.div(q, big_decimal::rounding_mode::HALF_EVEN);
+ big_decimal expected{expected_cstr};
+ BOOST_REQUIRE_EQUAL(res.unscaled_value(), expected.unscaled_value());
+ BOOST_REQUIRE_EQUAL(res.scale(), expected.scale());
+}
+
+void test_assignadd(const char *x_cstr, const char *y_cstr, const char *expected_cstr) {
+ big_decimal x{x_cstr};
+ big_decimal y{y_cstr};
+ big_decimal expected{expected_cstr};
+ x += y;
+ BOOST_REQUIRE_EQUAL(x.unscaled_value(), expected.unscaled_value());
+ BOOST_REQUIRE_EQUAL(x.scale(), expected.scale());
+}
+
+} /* anonymous namespoce */
+
+BOOST_AUTO_TEST_CASE(test_big_decimal_construct_from_string) {
+ big_decimal x0{"0"};
+ big_decimal x1{"0.0"};
+ big_decimal x2{"0.00"};
+ big_decimal x3{"0.000"};
+ big_decimal x4{"0E3"};
+ big_decimal x5{"0E10"};
+
+ BOOST_REQUIRE_EQUAL(x0.unscaled_value(), 0);
+ BOOST_REQUIRE_EQUAL(x0.scale(), 0);
+
+ BOOST_REQUIRE_EQUAL(x1.unscaled_value(), 0);
+ BOOST_REQUIRE_EQUAL(x1.scale(), 1);
+
+ BOOST_REQUIRE_EQUAL(x2.unscaled_value(), 0);
+ BOOST_REQUIRE_EQUAL(x2.scale(), 2);
+
+ BOOST_REQUIRE_EQUAL(x3.unscaled_value(), 0);
+ BOOST_REQUIRE_EQUAL(x3.scale(), 3);
+
+ BOOST_REQUIRE_EQUAL(x4.unscaled_value(), 0);
+ BOOST_REQUIRE_EQUAL(x4.scale(), -3);
+
+ BOOST_REQUIRE_EQUAL(x5.unscaled_value(), 0);
+ BOOST_REQUIRE_EQUAL(x5.scale(), -10);
+}
+
+BOOST_AUTO_TEST_CASE(test_big_decimal_div) {
+ test_div("1", 4, "0");
+ test_div("1.00", 4, "0.25");
+ test_div("0.10", 4, "0.02");
+ test_div("1.000", 4, "0.250");
+ test_div("0.100", 4, "0.025");
+ test_div("1", 3, "0");
+ test_div("1.00", 3, "0.33");
+ test_div("1.000", 3, "0.333");
+ test_div("0.100", 3, "0.033");
+ test_div("11", 10, "1");
+ test_div("15", 10, "2");
+ test_div("16", 10, "2");
+ test_div("25", 10, "2");
+ test_div("26", 10, "3");
+ test_div("0.11", 10, "0.01");
+ test_div("0.15", 10, "0.02");
+ test_div("0.16", 10, "0.02");
+ test_div("0.25", 10, "0.02");
+ test_div("0.26", 10, "0.03");
+ test_div("10E10", 3, "3E10");
+
+ test_div("-1", 4, "0");
+ test_div("-1.00", 4, "-0.25");
+ test_div("-0.10", 4, "-0.02");
+ test_div("-1.000", 4, "-0.250");
+ test_div("-0.100", 4, "-0.025");
+ test_div("-1", 3, "0");
+ test_div("-1.00", 3, "-0.33");
+ test_div("-1.000", 3, "-0.333");
+ test_div("-0.100", 3, "-0.033");
+ test_div("-11", 10, "-1");
+ test_div("-15", 10, "-2");
+ test_div("-16", 10, "-2");
+ test_div("-25", 10, "-2");
+ test_div("-26", 10, "-3");
+ test_div("-0.11", 10, "-0.01");
+ test_div("-0.15", 10, "-0.02");
+ test_div("-0.16", 10, "-0.02");
+ test_div("-0.25", 10, "-0.02");
+ test_div("-0.26", 10, "-0.03");
+ test_div("-10E10", 3, "-3E10");
+}
+
+BOOST_AUTO_TEST_CASE(test_big_decimal_assignadd) {
+ test_assignadd("1", "4", "5");
+ test_assignadd("1.00", "4.00", "5.00");
+ test_assignadd("1.000", "4.000", "5.000");
+ test_assignadd("1", "-1", "0");
+ test_assignadd("1.00", "-1.00", "0.00");
+ test_assignadd("1.000", "-1.000", "0.000");
+ test_assignadd("0.0", "0.000", "0.000");
+ test_assignadd("1.0", "1.000", "2.000");
+ test_assignadd("-1.0", "-1.000", "-2.000");
+}