1 | // Copyright Benoit Blanchon 2014-2016
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2 | // MIT License
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3 | //
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4 | // Arduino JSON library
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5 | // https://github.com/bblanchon/ArduinoJson
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6 | // If you like this project, please add a star!
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7 |
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8 | #include <gtest/gtest.h>
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9 |
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10 | #define protected public
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11 | #include <ArduinoJson/StaticJsonBuffer.hpp>
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12 |
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13 | using namespace ArduinoJson;
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14 |
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15 | class StaticJsonBuffer_Basic_Tests : public testing::Test {
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16 | protected:
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17 | StaticJsonBuffer<64> buffer;
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18 | };
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19 |
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20 | TEST_F(StaticJsonBuffer_Basic_Tests, CapacityMatchTemplateParameter) {
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21 | ASSERT_EQ(64, buffer.capacity());
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22 | }
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23 |
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24 | TEST_F(StaticJsonBuffer_Basic_Tests, InitialSizeIsZero) {
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25 | ASSERT_EQ(0, buffer.size());
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26 | }
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27 |
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28 | TEST_F(StaticJsonBuffer_Basic_Tests, GrowsAfterAlloc) {
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29 | buffer.alloc(1);
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30 | ASSERT_LE(1U, buffer.size());
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31 | buffer.alloc(1);
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32 | ASSERT_LE(2U, buffer.size());
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33 | }
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34 |
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35 | TEST_F(StaticJsonBuffer_Basic_Tests, DoesntGrowWhenFull) {
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36 | buffer.alloc(64);
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37 | buffer.alloc(1);
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38 | ASSERT_EQ(64, buffer.size());
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39 | }
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40 |
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41 | TEST_F(StaticJsonBuffer_Basic_Tests, DoesntGrowWhenTooSmall) {
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42 | buffer.alloc(65);
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43 | ASSERT_EQ(0, buffer.size());
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44 | }
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45 |
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46 | TEST_F(StaticJsonBuffer_Basic_Tests, ReturnsNonNull) {
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47 | void *p = buffer.alloc(64);
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48 | ASSERT_NE(static_cast<void *>(0), p);
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49 | }
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50 |
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51 | TEST_F(StaticJsonBuffer_Basic_Tests, ReturnsNullWhenFull) {
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52 | buffer.alloc(64);
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53 | void *p = buffer.alloc(1);
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54 | ASSERT_EQ(NULL, p);
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55 | }
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56 |
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57 | TEST_F(StaticJsonBuffer_Basic_Tests, ReturnsNullWhenTooSmall) {
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58 | void *p = buffer.alloc(65);
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59 | ASSERT_EQ(NULL, p);
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60 | }
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61 |
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62 | TEST_F(StaticJsonBuffer_Basic_Tests, Alignment) {
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63 | size_t mask = sizeof(void *) - 1;
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64 |
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65 | for (size_t size = 1; size <= sizeof(void *); size++) {
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66 | size_t addr = reinterpret_cast<size_t>(buffer.alloc(1));
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67 | ASSERT_EQ(0, addr & mask);
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68 | }
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69 | }
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