SimpleArduinoFake/src/ArduinoFake.h at 8b5e8da8612d2c27c4baa2ad7d7b4dc660f318d7 · adbancroft/SimpleArduinoFake · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
#pragma once
// clang-format off

#if !defined(UBRRH) && !defined(UBRR0H) && !defined(USBCON)
    #define USBCON
#endif

#include <unordered_map>
#include <cstring>
#include <cstdint>
#include <stdexcept>
#include "fakeit.hpp"

#include "arduino/Arduino.h"

#include "Function.h"
#include "Stream.h"
#include "Serial.h"
#include "Wire.h"
#include "Client.h"
#include "Print.h"
#include "SPI.h"
#include "EEPROM.h"

#define ArduinoFakeReset() \
    getArduinoFakeContext()->Reset()

#define ArduinoFakeInstance(mock, ...) \
    getArduinoFakeContext()->mock(__VA_ARGS__)

#define ArduinoFakeMock(mock) \
    new mock##FakeProxy(ArduinoFakeInstance(mock))

#define _ArduinoFakeGetMock(mock) \
    getArduinoFakeContext()->_##mock

#define _ArduinoFakeGetFunction() _ArduinoFakeGetMock(Function)
#define _ArduinoFakeGetSerial() _ArduinoFakeGetMock(Serial)
#define _ArduinoFakeGetWire() _ArduinoFakeGetMock(Wire)
#define _ArduinoFakeGetSPI() _ArduinoFakeGetMock(SPI)
#define _ArduinoFakeGetEEPROM() _ArduinoFakeGetMock(EEPROM)
#define _ArduinoFakeGetStream() _ArduinoFakeGetMock(Stream)
#define _ArduinoFakeGetClient() _ArduinoFakeGetMock(Client)
#define _ArduinoFakeGetPrint() _ArduinoFakeGetMock(Print)
#define _ArduinoFakeGet() _ArduinoFakeGetMock(Function)

#define ArduinoFake(mock) _ArduinoFakeGet##mock()

template <class FakeT, class ProxyT, typename BaseT = fakeit::Mock<FakeT>>
struct ProxiedArduinoFake_t : public BaseT
{
    template <class ArduinoT>
    FakeT* getFake(ArduinoT *instance)
    {
        if (dynamic_cast<ProxyT*>(instance)) {
            return dynamic_cast<ProxyT*>(instance)->getFake();
        }
        throw std::runtime_error("Unknown instance");
    }
};

class FakeOverride_t
{
public:
    void Reset(void)
    {
        _mapping.clear();
    }

    void *getOverride(void *instance)
    {
        auto iter = _mapping.find(instance);
        return iter==_mapping.end() ? nullptr : iter->second;
    }

    void setOverride(void *instance, void *override)
    {
        _mapping[instance] = override;
    }

private:
    std::unordered_map<void*, void*> _mapping;
};

template <class FakeT, class ProxyT, typename BaseT = ProxiedArduinoFake_t<FakeT, ProxyT>>
struct OverrideableProxiedArduinoFake_t : public BaseT
{
    FakeOverride_t &_overrides;

    OverrideableProxiedArduinoFake_t(FakeOverride_t &overrides)
        : BaseT()
        , _overrides(overrides)
    {
    }

    template <class ArduinoT>
    FakeT* getFake(ArduinoT *instance)
    {
        fakeit::Mock<FakeT> *pOverride = static_cast<fakeit::Mock<FakeT> *>(_overrides.getOverride(instance));
        if (pOverride!=nullptr) {
            return &pOverride->get();
        }
        return BaseT::getFake(instance);
    }
};

class ArduinoFakeContext
{
public:
    FakeOverride_t _fakeOverrides;
    fakeit::Mock<FunctionFake> _Function;
    OverrideableProxiedArduinoFake_t<SerialFake, SerialFakeProxy> _Serial;
    OverrideableProxiedArduinoFake_t<WireFake, WireFakeProxy> _Wire;
    OverrideableProxiedArduinoFake_t<StreamFake, StreamFakeProxy> _Stream;
    OverrideableProxiedArduinoFake_t<ClientFake, ClientFakeProxy> _Client;
    OverrideableProxiedArduinoFake_t<PrintFake, PrintFakeProxy> _Print;
    OverrideableProxiedArduinoFake_t<SPIFake, SPIFakeProxy> _SPI;
    OverrideableProxiedArduinoFake_t<EEPROMFake, EEPROMFakeProxy> _EEPROM;

#define _ArduinoFakeInstanceGetter1(mock) \
    mock##Fake* mock() \
    { \
        return &this->_##mock.get(); \
    }

    _ArduinoFakeInstanceGetter1(Print)
    _ArduinoFakeInstanceGetter1(Stream)
    _ArduinoFakeInstanceGetter1(Serial)
    _ArduinoFakeInstanceGetter1(Wire)
    _ArduinoFakeInstanceGetter1(Client)
    _ArduinoFakeInstanceGetter1(Function)
    _ArduinoFakeInstanceGetter1(SPI)
    _ArduinoFakeInstanceGetter1(EEPROM)

#undef _ArduinoFakeInstanceGetter1

#define _ArduinoFakeInstanceGetter2(name, clazz) \
    name##Fake* name(class clazz* instance) \
    { \
        return this->_##name.getFake(instance); \
    }

    _ArduinoFakeInstanceGetter2(Print, Print)
    _ArduinoFakeInstanceGetter2(Client, Client)
    _ArduinoFakeInstanceGetter2(Stream, Stream)
    _ArduinoFakeInstanceGetter2(Serial, Serial_)
    _ArduinoFakeInstanceGetter2(Wire, TwoWire)
    _ArduinoFakeInstanceGetter2(SPI, SPIClass)
    _ArduinoFakeInstanceGetter2(EEPROM, EEPROMClass)

#undef _ArduinoFakeInstanceGetter2

    ArduinoFakeContext()
        : _fakeOverrides()
        , _Function()
        , _Serial(_fakeOverrides)
        , _Wire(_fakeOverrides)
        , _Stream(_fakeOverrides)
        , _Client(_fakeOverrides)
        , _Print(_fakeOverrides)
        , _SPI(_fakeOverrides)
        , _EEPROM(_fakeOverrides)
    {
        this->Reset();
    }

    void Reset(void)
    {
        _Function.Reset();
        _Serial.Reset();
        _Wire.Reset();
        _Stream.Reset();
        _Client.Reset();
        _Print.Reset();
        _SPI.Reset();
        _EEPROM.Reset();

        _fakeOverrides.Reset();
        _fakeOverrides.setOverride(&::Serial, &_Serial);
        _fakeOverrides.setOverride(&::Wire, &_Wire);
        _fakeOverrides.setOverride(&::SPI, &_SPI);
        _fakeOverrides.setOverride(&::EEPROM, &_EEPROM);
    }

};

ArduinoFakeContext* getArduinoFakeContext();

// clang-format on