alchemyst/engine/items/itemprops/ip_test.go

package itemprops

import (
	"encoding/json"
	"github.com/shopspring/decimal"
	"github.com/stretchr/testify/suite"
	"testing"
)

type IpTestSuite struct {
	suite.Suite
}

// метод для установки тестовых данных для всего набора, запускается до всего прочего
func (suite *IpTestSuite) SetupSuite() {
}

// метод для сноса наделанного тестом до идеально чистого состояния, запускается после всего прочего
func (suite *IpTestSuite) TearDownSuite() {
}

// запускается перед каждым тестом
func (suite *IpTestSuite) SetupTest() {}

// запускается после каждого теста
func (suite *IpTestSuite) TearDownTest() {}

func TestApi(t *testing.T) {
	tests := new(IpTestSuite)
	suite.Run(t, tests)
}

func (suite *IpTestSuite) TestMaterialWeightAndVolume() {
	// плотность https://tekkos.ru/katalog/poleznaya-informatsiya/tablica-plotnosti-stali-kg-m3.html
	// ударная вязкость https://nposanef.ru/DOCUMENTS/PB-03-605-03/PB-03-605-03_Tab-2.6.pdf
	// температура плавления http://zaozmi.ru/polezno/temperatura_plavleniya_metallov.html
	// температура кипения http://temperatures.ru/pages/temperatura_plavleniya_i_kipeniya
	// Пределы прочности некоторых материалов https://sevparitet.ru/raznoe/koefficient-uprugosti-tablica.html

	metalMaterialFlags := MaterialFlags{
		ConductsElictricity: true,
		BlocksLiquid:        true,
		AcidResistant:       true,
		BlocksGas:           true,
		Flammable:           false,
		ConductsHeat:        true,
		Radiates:            true,
	}

	woodMaterialFlags := MaterialFlags{
		ConductsElictricity: false,
		BlocksLiquid:        true,
		AcidResistant:       false,
		BlocksGas:           true,
		Flammable:           true,
		ConductsHeat:        false,
		Radiates:            false,
	}

	teststeel := Material{
		Name:              "teststeel",
		Flags:             metalMaterialFlags,
		Density:           DimensionItemDensity{decimal.NewFromInt(7800)},
		FractureToughness: DimensionFractureToughness{decimal.NewFromInt(30)},
		MeltingPoint:      DimensionItemNullTemperature{decimal.NullDecimal{decimal.NewFromInt(1400), true}},
		BoilingPoint:      DimensionItemNullTemperature{decimal.NullDecimal{decimal.NewFromInt(3200), true}},
	}

	testOakWood := Material{
		Name:              "testoakwood",
		Flags:             woodMaterialFlags,
		Density:           DimensionItemDensity{decimal.NewFromInt(700)},
		FractureToughness: DimensionFractureToughness{decimal.NewFromFloat(4.5)},
		MeltingPoint:      DimensionItemNullTemperature{decimal.NullDecimal{decimal.NewFromInt(600), true}}, //загорается при 600 град Цельсия
	}

	testCube := ItemPhysics{
		Material:              teststeel,
		DimensionItemRigidity: DimensionItemRigidity{decimal.NewFromInt(65)},
		DimensionItemSize: DimensionItemSize{
			Width:     decimal.NewFromFloat(0.1),
			Height:    decimal.NewFromFloat(0.1),
			Depth:     decimal.NewNullDecimal(decimal.NewFromFloat(0.1)),
			Thickness: decimal.NullDecimal{},
		},
		DimensionItemTemperature: DimensionItemTemperature{decimal.NewFromInt(20)},
	}

	suite.Equal(decimal.NewFromFloat(7.8).String(), testCube.Weight().String())
	suite.Equal(decimal.NewFromFloat(0.001).String(), testCube.Volume().String())

	testOakCube := ItemPhysics{
		Material:              testOakWood,
		DimensionItemRigidity: DimensionItemRigidity{decimal.NewFromInt(4)},
		DimensionItemSize: DimensionItemSize{
			Width:     decimal.NewFromFloat(0.1),
			Height:    decimal.NewFromFloat(0.1),
			Depth:     decimal.NewNullDecimal(decimal.NewFromFloat(0.1)),
			Thickness: decimal.NullDecimal{},
		},
		DimensionItemTemperature: DimensionItemTemperature{decimal.NewFromInt(20)},
	}

	//oakwood is ~10 times lighter than steel
	suite.Equal(decimal.NewFromFloat(0.7).String(), testOakCube.Weight().String())
	suite.Equal(decimal.NewFromFloat(0.001).String(), testOakCube.Volume().String())

	testCuirass := ItemPhysics{
		Material:              teststeel,
		DimensionItemRigidity: DimensionItemRigidity{decimal.NewFromInt(55)},
		DimensionItemSize: DimensionItemSize{
			Width:     decimal.NewFromFloat(0.5),                           //60 cm wide
			Height:    decimal.NewFromFloat(0.8),                           //80 cm high
			Depth:     decimal.NewNullDecimal(decimal.NewFromFloat(0.4)),   //50 cm deep
			Thickness: decimal.NewNullDecimal(decimal.NewFromFloat(0.001)), // 1mm thick
		},
		DimensionItemTemperature: DimensionItemTemperature{},
	}

	//12.1992 kg HEAVY ARMOR IS HEAVY
	suite.Equal(decimal.NewFromFloat(12.1992).String(), testCuirass.Weight().String())
	//0.001564 m3 of steel
	suite.Equal(decimal.NewFromFloat(0.001564).String(), testCuirass.Volume().String())
}

func (suite *IpTestSuite) TestMaterialSerialization() {
	metalMaterialFlags := MaterialFlags{
		ConductsElictricity: true,
		BlocksLiquid:        true,
		AcidResistant:       true,
		BlocksGas:           true,
		Flammable:           false,
		ConductsHeat:        true,
		Radiates:            true,
	}

	woodMaterialFlags := MaterialFlags{
		ConductsElictricity: false,
		BlocksLiquid:        true,
		AcidResistant:       false,
		BlocksGas:           true,
		Flammable:           true,
		ConductsHeat:        false,
		Radiates:            false,
	}

	teststeel := Material{
		Name:              "teststeel",
		Flags:             metalMaterialFlags,
		Density:           DimensionItemDensity{decimal.NewFromInt(7800)},
		FractureToughness: DimensionFractureToughness{decimal.NewFromInt(30)},
		MeltingPoint:      DimensionItemNullTemperature{decimal.NullDecimal{decimal.NewFromInt(1400), true}},
		BoilingPoint:      DimensionItemNullTemperature{decimal.NullDecimal{decimal.NewFromInt(3200), true}},
	}

	testOakWood := Material{
		Name:              "testoakwood",
		Flags:             woodMaterialFlags,
		Density:           DimensionItemDensity{decimal.NewFromInt(700)},
		FractureToughness: DimensionFractureToughness{decimal.NewFromFloat(4.5)},
		MeltingPoint:      DimensionItemNullTemperature{decimal.NullDecimal{decimal.NewFromInt(600), true}}, //загорается при 600 град Цельсия
	}
	bytes, err := json.Marshal(teststeel)
	suite.NoError(err)
	suite.Equal(
		`{"name":"teststeel","material_flags":{"conducts_elictricity":true,"blocks_liquid":true,"acid_resistant":true,"blocks_gas":true,"flammable":false,"conducts_heat":true,"radiates":true},"density":"7800","fracture_toughness":"30","melting_point":"1400","boiling_point":"3200"}`,
		string(bytes),
	)

	bytes, err = json.Marshal(testOakWood)
	suite.NoError(err)
	suite.Equal(`{"name":"testoakwood","material_flags":{"conducts_elictricity":false,"blocks_liquid":true,"acid_resistant":false,"blocks_gas":true,"flammable":true,"conducts_heat":false,"radiates":false},"density":"700","fracture_toughness":"4.5","melting_point":"600","boiling_point":null}`,
		string(bytes),
	)
}