8a7d1d3fde
Now when json-schema-validator is installed CMake config files are installed in the lib/cmake/json-schema-validator directory. The install json-schema-validatorTargets.cmake file properly imports the json-hpp and json-schema-validator libraries. The install json-schema-validatorConfig.cmake file is used by CMake find_package function to include the json-schema-validatorTargets.cmake file and to set the variable JSON_SCHEMA_VALIDATOR_INCLUDE_DIRS to the install include directory. To use find_package to find the json-schema-validator simply include. A new test (test_cmake_install) has been added. When NLohmann's JSON is install with CMake, it follows a certain naming convention. As we learned to do proper CMake-install thanks to @lkersting's work this project now adapts to the way NLohmann is doing it. Namely: - json-schema.hpp is now located (and installed) in a nlohmann/-subdirectory - the CMake library and project's name is now nlohmann_json_schema_validator Instead of doing non-standard acrobatics to find the json.hpp now find_package is used in order to find NLohmann's package Co-Authored-By: Patrick Boettcher <p@yai.se>
124 lines
3.4 KiB
C++
124 lines
3.4 KiB
C++
#include <nlohmann/json-schema.hpp>
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#include <iostream>
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static int error_count;
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#define EXPECT_EQ(a, b) \
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do { \
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if (a != b) { \
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std::cerr << "Failed: '" << a << "' != '" << b << "'\n"; \
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error_count++; \
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} \
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} while (0)
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using nlohmann::json;
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using nlohmann::json_schema::json_validator;
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namespace
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{
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// The schema is defined based upon a string literal
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static json person_schema = R"(
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{
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"$schema": "http://json-schema.org/draft-07/schema#",
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"title": "A person",
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"properties": {
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"name": {
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"description": "Name",
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"type": "string"
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},
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"age": {
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"description": "Age of the person",
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"type": "number",
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"minimum": 2,
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"maximum": 200
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},
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"phones": {
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"type": "array",
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"items": {
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"type": "number"
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}
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}
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},
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"required": [
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"name",
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"age"
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],
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"additionalProperties": false,
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"type": "object"
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})"_json;
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class store_ptr_err_handler : public nlohmann::json_schema::basic_error_handler
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{
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void error(const nlohmann::json::json_pointer &ptr, const json &instance, const std::string &message) override
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{
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nlohmann::json_schema::basic_error_handler::error(ptr, instance, message);
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std::cerr << "ERROR: '" << ptr << "' - '" << instance << "': " << message << "\n";
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failed_pointers.push_back(ptr);
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}
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public:
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std::vector<nlohmann::json::json_pointer> failed_pointers;
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void reset() override
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{
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nlohmann::json_schema::basic_error_handler::reset();
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failed_pointers.clear();
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}
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};
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} // namespace
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static json_validator validator(person_schema);
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int main(void)
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{
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store_ptr_err_handler err;
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validator.validate({{"age", 42}, {"name", "John"}}, err); // OK
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EXPECT_EQ(err.failed_pointers.size(), 0);
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err.reset();
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validator.validate({{"age", 42}}, err); // no name
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EXPECT_EQ(err.failed_pointers.size(), 1);
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EXPECT_EQ(err.failed_pointers[0].to_string(), "");
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err.reset();
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validator.validate({{"street", "Boulevard"}}, err); // no name and no age
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EXPECT_EQ(err.failed_pointers.size(), 3);
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EXPECT_EQ(err.failed_pointers[0].to_string(), "");
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EXPECT_EQ(err.failed_pointers[1].to_string(), "");
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EXPECT_EQ(err.failed_pointers[2].to_string(), "");
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err.reset();
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validator.validate({{"age", 42}, {"name", 12}}, err); // name must be a string
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EXPECT_EQ(err.failed_pointers.size(), 1);
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EXPECT_EQ(err.failed_pointers[0].to_string(), "/name");
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err.reset();
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validator.validate({
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{"age", 42},
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{"name", "John"},
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{"phones", {1234, "223"}},
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},
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err); // name must be a string
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EXPECT_EQ(err.failed_pointers.size(), 1);
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EXPECT_EQ(err.failed_pointers[0].to_string(), "/phones/1");
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err.reset();
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validator.validate({
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{"age", 42},
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{"name", "John"},
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{"phones", {0}},
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{"post-code", 12345},
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},
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err); // name must be a string
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EXPECT_EQ(err.failed_pointers.size(), 1);
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EXPECT_EQ(err.failed_pointers[0].to_string(), "");
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err.reset();
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return error_count;
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}
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