423 lines
8 KiB
C++
423 lines
8 KiB
C++
#include <iostream>
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#include <fstream>
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#include <cstdio>
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#include <cassert>
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#include <JSON.h>
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#include <sstream>
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void test_null()
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{
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std::cerr << "entering test_null()\n";
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/* a null object */
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// construct
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JSON a, b;
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// copy assign
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b = JSON();
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// copy construct
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JSON c(a);
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// copy construct
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JSON d = a;
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// assign operator
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JSON e = JSON();
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// compare
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assert(a == b);
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// type
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assert(a.type() == JSON::value_type::null);
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// empty and size
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assert(a.size() == 0);
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assert(a.empty() == true);
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// output
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std::cout << a << '\n';
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// string represetations
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assert(a.toString() == std::string("null"));
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// invalid conversion to int
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try
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{
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int i = 0;
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i = a;
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assert(false);
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}
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catch (const std::exception& ex)
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{
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assert(ex.what() == std::string("cannot cast null to JSON number"));
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}
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// invalid conversion to double
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try
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{
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double f = 0;
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f = a;
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assert(false);
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}
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catch (const std::exception& ex)
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{
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assert(ex.what() == std::string("cannot cast null to JSON number"));
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}
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// invalid conversion to bool
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try
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{
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bool b = a;
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assert(false);
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}
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catch (const std::exception& ex)
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{
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assert(ex.what() == std::string("cannot cast null to JSON Boolean"));
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}
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// invalid conversion to string
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try
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{
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std::string s = a;
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assert(false);
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}
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catch (const std::exception& ex)
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{
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assert(ex.what() == std::string("cannot cast null to JSON string"));
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}
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std::cerr << "leaving test_null()\n";
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}
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void test_bool()
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{
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std::cerr << "entering test_bool()\n";
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JSON True = true;
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JSON False = false;
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bool x = True;
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std::cerr << "leaving test_bool()\n";
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}
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void test_string()
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{
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std::cerr << "entering test_string()\n";
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/* a string object */
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// construct
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JSON a = "object a";
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JSON b;
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// copy assign
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b = JSON("object a");
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// copy construct
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JSON c(a);
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// copy construct
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JSON d = a;
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// assign operator
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JSON e = JSON("");
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// compare
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assert(a == b);
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// type
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assert(a.type() == JSON::value_type::string);
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// empty and size
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assert(a.size() == 1);
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assert(a.empty() == false);
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// output
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std::cout << a << '\n';
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// string represetations
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assert(a.toString() == std::string("\"object a\""));
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// invalid conversion to int
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try
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{
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int i = 0;
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i = a;
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assert(false);
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}
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catch (const std::exception& ex)
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{
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assert(ex.what() == std::string("cannot cast string to JSON number"));
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}
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// invalid conversion to double
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try
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{
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double f = 0;
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f = a;
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assert(false);
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}
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catch (const std::exception& ex)
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{
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assert(ex.what() == std::string("cannot cast string to JSON number"));
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}
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// invalid conversion to bool
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try
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{
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bool b = false;
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b = a;
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assert(false);
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}
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catch (const std::exception& ex)
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{
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assert(ex.what() == std::string("cannot cast string to JSON Boolean"));
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}
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{
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// get payload
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std::string* s1 = a.data().string;
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std::string s2 = a;
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assert(*s1 == s2);
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}
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std::cerr << "leaving test_string()\n";
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}
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void test_array()
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{
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std::cerr << "entering test_array()\n";
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JSON a;
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a += JSON();
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a += 1;
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a += 1.0;
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a += true;
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a += "string";
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// type
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assert(a.type() == JSON::value_type::array);
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// empty and size
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assert(a.size() == 5);
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assert(a.empty() == false);
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// output
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std::cout << a << '\n';
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// check for elements
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assert(a[1] == JSON(1));
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assert(a[2] == JSON(1.0));
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assert(a[3] == JSON(true));
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assert(a[4] == JSON("string"));
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// invalid access to element
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try
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{
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a[5] = 1;
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// assert(false);
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}
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catch (const std::exception& ex)
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{
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assert(ex.what() == std::string("cannot access element at index 5"));
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}
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// get elements
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{
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int i = a[1];
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double d = a[2];
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bool b = a[3];
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std::string s = a[4];
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}
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// set elements
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a[1] = 2;
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#ifdef __cplusplus11
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// construction from initializer list
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JSON b = {JSON(), 2, 1.0, true, "string"};
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assert(a == b);
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#endif
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// iterators
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{
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size_t count = 0;
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for (JSON::iterator i = a.begin(); i != a.end(); ++i)
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{
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std::cerr << *i << '\n';
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count++;
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}
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assert(count == a.size());
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}
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{
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size_t count = 0;
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for (JSON::const_iterator i = a.begin(); i != a.end(); ++i)
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{
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std::cerr << *i << '\n';
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count++;
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}
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assert(count == a.size());
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}
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{
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size_t count = 0;
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for (JSON::const_iterator i = a.cbegin(); i != a.cend(); ++i)
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{
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std::cerr << *i << '\n';
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count++;
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}
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assert(count == a.size());
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}
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#ifdef __cplusplus11
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{
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size_t count = 0;
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for (auto element : a)
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{
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std::cerr << element << '\n';
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count++;
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}
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assert(count == a.size());
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}
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#endif
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{
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JSON::iterator i;
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size_t count = 0;
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for (i = a.begin(); i != a.end(); ++i)
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{
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std::cerr << *i << '\n';
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count++;
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}
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assert(count == a.size());
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}
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{
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JSON::const_iterator i;
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size_t count = 0;
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for (i = a.begin(); i != a.end(); ++i)
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{
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std::cerr << *i << '\n';
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count++;
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}
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assert(count == a.size());
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}
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{
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JSON::const_iterator i;
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size_t count = 0;
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for (i = a.cbegin(); i != a.cend(); ++i)
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{
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std::cerr << *i << '\n';
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count++;
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}
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assert(count == a.size());
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}
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{
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// get payload
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std::vector<JSON>* array = a.data().array;
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assert(array->size() == a.size());
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assert(array->empty() == a.empty());
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}
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std::cerr << "leaving test_array()\n";
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}
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void test_object()
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{
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std::cerr << "entering test_object()\n";
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// check find()
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{
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JSON o;
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o["foo"] = "bar";
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JSON::iterator i1 = o.find("foo");
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assert(i1 != o.end());
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assert(i1.value() == "bar");
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assert(i1.key() == "foo");
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assert(*i1 == "bar");
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JSON::iterator i2 = o.find("baz");
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assert(i2 == o.end());
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JSON a;
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a += "foo";
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a += "bar";
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JSON::iterator i;
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i = a.find("foo");
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assert(i == a.end());
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}
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std::cerr << "leaving test_object()\n";
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}
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void test_streaming()
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{
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std::cerr << "entering test_streaming()\n";
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// stream text representation into stream
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std::stringstream i;
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i << "{ \"foo\": true, \"baz\": [1,2,3,4] }";
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// create JSON from stream
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{
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JSON j, k;
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i >> j;
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k << i;
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assert(j.toString() == k.toString());
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}
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// roundtrip
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{
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std::stringstream o;
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JSON j, k;
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i >> j;
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j >> o;
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o >> k;
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// assert(j.toString() == k.toString()); (order is not preserved)
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}
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// check numbers
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{
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std::stringstream number_stream;
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number_stream << "[0, -1, 1, 1.0, -1.0, 1.0e+1, 1.0e-1, 1.0E+1, 1.0E-1, -1.2345678e-12]";
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JSON j;
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j << number_stream;
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}
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// check Unicode
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{
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std::stringstream unicode_stream;
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unicode_stream << "[\"öäüÖÄÜß\", \"ÀÁÂÃĀĂȦ\", \"★☆→➠♥︎♦︎☁︎\"]";
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JSON j;
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j << unicode_stream;
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}
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// check escaped strings
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{
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std::stringstream escaped_stream;
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escaped_stream << "[\"\\\"Hallo\\\"\", \"\u0123\"]";
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JSON j;
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j << escaped_stream;
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}
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std::cerr << "leaving test_streaming()\n";
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}
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int main()
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{
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test_null();
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test_bool();
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test_string();
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test_array();
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test_object();
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test_streaming();
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return 0;
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}
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