separated advanced features from core functionality

tests/serialization_ext_value_range.cpp

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+//MIT License
+//
+//Copyright (c) 2017 Mindaugas Vinkelis
+//
+//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 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 <gmock/gmock.h>
+#include "serialization_test_utils.h"
+#include <bitsery/ext/value_range.h>
+using namespace testing;
+using bitsery::details::RangeSpec;
+using bitsery::ext::BitsConstraint;
+using bitsery::ext::ValueRange;
+
+#if __cplusplus > 201402L
+
+TEST(SerializeExtensionValueRange, RequiredBitsIsConstexpr) {
+    constexpr RangeSpec<int> r1{0, 31};
+    static_assert(r1.bitsRequired == 5, "r1.bitsRequired == 5");
+
+    constexpr RangeSpec<MyEnumClass> r2{MyEnumClass::E1, MyEnumClass::E4};
+    static_assert(r2.bitsRequired == 2, "r2.bitsRequired == 2");
+
+    constexpr RangeSpec<double> r3{-1.0,1.0, BitsConstraint{5u}};
+    //EXPECT_THAT(r1.bitsRequired, Eq(5));
+    static_assert(r3.bitsRequired == 5, "r3.bitsRequired == 5");
+
+    constexpr RangeSpec<float> r4{-1.0f,1.0f, 0.01f};
+    static_assert(r4.bitsRequired == 8, "r4.bitsRequired == 8");
+
+}
+
+#endif
+
+TEST(SerializeExtensionValueRange, IntegerNegative) {
+    SerializationContext ctx;
+    ValueRange<int> r1{-50, 50};
+    int t1{-8};
+    int res1;
+
+    ctx.createSerializer().ext(t1, r1);
+    ctx.createDeserializer().ext(res1, r1);
+
+    EXPECT_THAT(ctx.getBufferSize(), Eq(1));
+    EXPECT_THAT(res1, Eq(t1));
+
+}
+
+TEST(SerializeExtensionValueRange, IntegerPositive) {
+    SerializationContext ctx;
+    ValueRange<unsigned> r1{4u, 10u};
+    unsigned t1{8};
+    unsigned res1;
+
+    ctx.createSerializer().ext(t1, r1);
+    ctx.createDeserializer().ext(res1, r1);
+
+    EXPECT_THAT(ctx.getBufferSize(), Eq(1));
+    EXPECT_THAT(res1, Eq(t1));
+
+}
+
+TEST(SerializeExtensionValueRange, EnumTypes) {
+    SerializationContext ctx;
+    ValueRange<MyEnumClass> r1{MyEnumClass::E2, MyEnumClass::E4};
+    MyEnumClass t1{MyEnumClass::E2};
+    MyEnumClass res1;
+
+    ctx.createSerializer().ext(t1, r1);
+    ctx.createDeserializer().ext(res1, r1);
+
+    EXPECT_THAT(ctx.getBufferSize(), Eq(1));
+    EXPECT_THAT(res1, Eq(t1));
+
+}
+
+TEST(SerializeExtensionValueRange, FloatUsingPrecisionConstraint1) {
+    SerializationContext ctx;
+    constexpr float precision{0.01f};
+    constexpr float min{-1.0f};
+    constexpr float max{1.0f};
+    float t1{0.5f};
+    ValueRange<float> r1{min, max, precision};
+
+    float res1;
+
+    ctx.createSerializer().ext(t1, r1);
+    ctx.createDeserializer().ext(res1, r1);
+
+    EXPECT_THAT(ctx.getBufferSize(), Eq(1));
+    EXPECT_THAT(res1, ::testing::FloatNear(t1, (max - min) * precision));
+}
+
+TEST(SerializeExtensionValueRange, DoubleUsingPrecisionConstraint2) {
+    SerializationContext ctx;
+    constexpr double precision{0.000002};
+    constexpr double min{50.0};
+    constexpr double max{100000.0};
+    double t1{38741.0};
+    ValueRange<double> r1{min, max, precision};
+
+    double res1;
+
+    ctx.createSerializer().ext(t1, r1);
+    ctx.createDeserializer().ext(res1, r1);
+
+    EXPECT_THAT(ctx.getBufferSize(), Eq(5));
+    EXPECT_THAT(res1, ::testing::DoubleNear(t1, (max - min) * precision));
+}
+
+TEST(SerializeExtensionValueRange, FloatUsingBitsSizeConstraint1) {
+    SerializationContext ctx;
+    constexpr size_t bits = 8;
+    constexpr float min{-1.0f};
+    constexpr float max{1.0f};
+    float t1{0.5f};
+    ValueRange<float> r1{min, max, BitsConstraint(bits)};
+
+    float res1;
+
+    ctx.createSerializer().ext(t1, r1);
+    ctx.createDeserializer().ext(res1, r1);
+
+    EXPECT_THAT(ctx.getBufferSize(), Eq(1));
+    EXPECT_THAT(res1, ::testing::FloatNear(t1, (max - min) / (static_cast<bitsery::details::SAME_SIZE_UNSIGNED<float>>(1) << bits)));
+}
+
+TEST(SerializeExtensionValueRange, DoubleUsingBitsSizeConstraint2) {
+    SerializationContext ctx;
+    constexpr size_t bits = 50;
+    constexpr double min{50.0};
+    constexpr double max{100000.0};
+    double t1{38741};
+    ValueRange<double> r1{min, max, BitsConstraint(bits)};
+
+    double res1;
+
+    ctx.createSerializer().ext(t1, r1);
+    ctx.createDeserializer().ext(res1, r1);
+
+    EXPECT_THAT(ctx.getBufferSize(), Eq(7));
+    EXPECT_THAT(res1, ::testing::DoubleNear(t1, (max - min) / (static_cast<bitsery::details::SAME_SIZE_UNSIGNED<double>>(1) << bits)));
+}
+
+TEST(SerializeExtensionValueRange, WhenDataIsInvalidThenReturnMinimumRangeValue) {
+    SerializationContext ctx;
+    ValueRange<int> r1{4, 10};//6 is max, but 3bits required
+    int res1;
+    uint8_t tmp{0xFF};//write all 1 so when reading 3 bits we get 7
+    ctx.createSerializer().value1b(tmp);
+    ctx.createDeserializer().ext(res1, r1);
+
+    EXPECT_THAT(ctx.getBufferSize(), Eq(1));
+    EXPECT_THAT(res1, Eq(4));
+}