ApprovalTestTests.cpp

// begin-snippet: ut_main
#define APPROVALS_UT
#include "ApprovalTests.hpp"
// end-snippet

int main()
{
    using namespace boost::ut;
    using namespace ApprovalTests;

    auto directory = Approvals::useApprovalsSubdirectory("approval_tests");

    // begin-snippet: ut_main_usage
    "ItCanVerifyAFile"_test = []() {
        Approvals::verify("Approval Tests can verify text via the golden master method");
	};
    // end-snippet

    test("AnotherWayItCanVerifyAFile") = []() {
        Approvals::verify("Approval Tests can verify text via the golden master method");
    };

    // begin-snippet: ut_main_multiple
    "ItCanUseMultipleVerify"_test = []() {
        {
            // Here we simulate test sections, so that Approval Tests uses different
            // output file names for the different verify() calls.
            auto section = NamerFactory::appendToOutputFilename("section 1");
            Approvals::verify("Approval Tests can verify text via the golden master method");
        }
        {
            auto section = NamerFactory::appendToOutputFilename("section 2");
            Approvals::verify("Approval Tests can verify different text via the golden master method");
        }
    };
    // end-snippet

    "YouCanUseAWriter"_test = []() {
        // begin-snippet: ut_use_custom_writer
        using HtmlWriter = StringWriter;
        HtmlWriter writer("<h1>hello world</h1>", ".html");
        Approvals::verify(writer);
        // end-snippet
    };

    "YouCanSpecifyYourFileExtension"_test = []() {
        // begin-snippet: ut_use_custom_file_extension
        Approvals::verifyWithExtension("<h1>hello world</h1>", ".html");
        // end-snippet
    };

    "YouCanSpecifyYourFileExtensionWithToString"_test = []() {
        Approvals::verifyWithExtension(1337, ".csv");
    };

    "YouCanSpecifyYourFileExtensionWithFormatter"_test = []() {
        Approvals::verifyWithExtension(1337, [](auto value, auto& os) {os << "**value:** " << value; }, ".md");
    };
}