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Exercise 01 Ljudevit #4

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53 changes: 53 additions & 0 deletions exercise/01/animal.cpp
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Original file line number Diff line number Diff line change
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#include "animal.h"

//---------------- Insects

unsigned int insect::legs() const {
return 6U;
}

std::wstring cockroach::species() const {
return L"cockroach";
}

//---------------- Birds

unsigned bird::legs() const {
return 2U;
}

std::wstring sparrow::species() const {
return L"sparrow";
}

//---------------- Spiders

unsigned spider::legs() const {
return 8U;
}

std::wstring tarantula::species() const {
return L"tarantula";
}

//---------------- leg_counter

unsigned leg_counter::legs() const {
return legs_;
}

std::wstring leg_counter::add_animal(const std::unique_ptr<animal>& concrete_animal) {
legs_ += concrete_animal->legs();
return concrete_animal->species();
}

//---------------- animal_factory

std::unique_ptr<animal> animal_factory(int of_type) {
switch (of_type) {
case 1: return std::make_unique<cockroach>();
case 2: return std::make_unique <sparrow>();
case 3: return std::make_unique <tarantula>();
default: throw std::invalid_argument("Unknown animal type");
}
}
57 changes: 57 additions & 0 deletions exercise/01/animal.h
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#pragma once
#include <string>
#include <vector>

class animal {
public:
virtual std::wstring species() const = 0;
virtual unsigned int legs() const = 0;
virtual ~animal() = default;
};

//---------------- Insects

class insect : public animal {
unsigned legs() const override;
};

class cockroach : public insect {
public:
std::wstring species() const override;
};

//---------------- Birds

class bird : public animal {
public:
unsigned legs() const override;
};

class sparrow : public bird {
public:
std::wstring species() const override;
};

//---------------- Spiders

class spider : public animal {
public:
unsigned legs() const override;
};

class tarantula : public spider {
public:
std::wstring species() const override;
};

//---------------- leg_counter

class leg_counter {
unsigned int legs_ = 0;
public:
unsigned int legs() const;
std::wstring add_animal(const std::unique_ptr<animal>& concrete_animal);
};

//---------------- animal_factory
std::unique_ptr<animal> animal_factory(int of_type);
188 changes: 94 additions & 94 deletions exercise/01/animals.vcxproj
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@@ -1,95 +1,95 @@
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12 changes: 7 additions & 5 deletions exercise/01/test.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,8 @@ TEST_CLASS(test_animal_hierarchy)
Assert::AreEqual(L"cockroach", a.species().c_str());
Assert::AreEqual(6u, a.legs());
}
TEST_METHOD(concrete_bird)

TEST_METHOD(concrete_bird)
{
sparrow s;
bird& b = s;
Expand All @@ -23,24 +24,25 @@ TEST_CLASS(test_animal_hierarchy)
Assert::AreEqual(2u, a.legs());
}

TEST_METHOD(concrete_spider)
TEST_METHOD(concrete_spider)
{
tarantula t;
spider& s = t;
spider& s = t;
animal& a = t;
Assert::AreEqual(L"tarantula", a.species().c_str());
Assert::AreEqual(8u, a.legs());
}

TEST_METHOD(legg_counter_different_animals)
TEST_METHOD(legg_counter_different_animals)
{
leg_counter lc;
Assert::AreEqual(L"cockroach", lc.add_animal(animal_factory(1)).c_str());
Assert::AreEqual(L"sparrow", lc.add_animal(animal_factory(2)).c_str());
Assert::AreEqual(L"tarantula", lc.add_animal(animal_factory(3)).c_str());
Assert::AreEqual(16u, lc.legs());
}
TEST_METHOD(legg_counter_same_animal)

TEST_METHOD(legg_counter_same_animal)
{
leg_counter lc;
lc.add_animal(animal_factory(2));
Expand Down