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Merge pull request #245 from eseiler/misc/expect_thow_msg
[TEST] Add EXPECT_THROW_MSG
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‎test/include/sharg/test/expect_throw_msg.hpp‎

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@@ -0,0 +1,54 @@
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// SPDX-FileCopyrightText: 2006-2024, Knut Reinert & Freie Universität Berlin
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// SPDX-FileCopyrightText: 2016-2024, Knut Reinert & MPI für molekulare Genetik
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// SPDX-License-Identifier: BSD-3-Clause
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/*!\file
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* \brief Provides EXPECT_THROW_MSG.
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* \author Enrico Seiler <enrico.seiler AT fu-berlin.de>
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*/
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#pragma once
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#include <gtest/gtest.h>
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#ifdef EXPECT_THROW_MSG
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# warning "EXPECT_THROW_MSG is already defined."
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#else
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# define EXPECT_THROW_MSG(statement, expected_exception, expected_message) \
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try \
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{ \
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statement; \
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std::string const message = "Expected: " #statement " throws an exception of type " #expected_exception \
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".\n Actual: it throws nothing."; \
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GTEST_NONFATAL_FAILURE_(message.data()); \
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} \
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catch (expected_exception const & exception) \
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{ \
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if (auto result = ::testing::internal::EqHelper::Compare("Expected", \
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"Actual", \
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std::string_view{expected_message}, \
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std::string_view{exception.what()}); \
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!result) \
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{ \
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std::string message = #statement " throws the correct exception, but the description is incorrect.\n"; \
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message += result.failure_message(); \
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GTEST_NONFATAL_FAILURE_(message.data()); \
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} \
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} \
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catch (std::exception const & exception) \
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{ \
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std::string message = "Expected: " #statement " throws an exception of type " #expected_exception ".\n "; \
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message += "Actual: it throws "; \
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message += ::testing::internal::GetTypeName(typeid(exception)); \
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message += " with description \""; \
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message += exception.what(); \
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message += "\"."; \
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GTEST_NONFATAL_FAILURE_(message.data()); \
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} \
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catch (...) \
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{ \
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std::string message = "Expected: " #statement " throws an exception of type " #expected_exception ".\n "; \
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message += "Actual: it throws an unknown exception."; \
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GTEST_NONFATAL_FAILURE_(message.data()); \
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}
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#endif

‎test/unit/parser/enumeration_names_test.cpp‎

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Original file line numberDiff line numberDiff line change
@@ -7,6 +7,7 @@
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#include <ranges>
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#include <sharg/parser.hpp>
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#include <sharg/test/expect_throw_msg.hpp>
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#include <sharg/test/test_fixture.hpp>
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namespace foo
@@ -112,34 +113,19 @@ TEST_F(enumeration_names_test, enum_error_message)
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foo::bar value{};
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Other::bar value2{};
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auto parser = get_parser();
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auto check_error = [&parser](std::string_view const expected)
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{
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try
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{
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parser.parse();
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FAIL();
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}
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catch (sharg::user_input_error const & exception)
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{
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EXPECT_EQ(expected, exception.what());
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}
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catch (...)
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{
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FAIL();
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}
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};
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// foo::bar does not contain duplicate values
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parser = get_parser("-e", "nine");
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auto parser = get_parser("-e", "nine");
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parser.add_option(value, sharg::config{.short_id = 'e'});
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check_error("You have chosen an invalid input value: nine. Please use one of: [one, two, three]");
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EXPECT_THROW_MSG(parser.parse(),
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sharg::user_input_error,
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"You have chosen an invalid input value: nine. Please use one of: [one, two, three]");
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// Other::bar does contain duplicate values
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parser = get_parser("-e", "nine");
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parser.add_option(value2, sharg::config{.short_id = 'e'});
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check_error("You have chosen an invalid input value: nine. Please use one of: [1, one, 2, two]");
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EXPECT_THROW_MSG(parser.parse(),
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sharg::user_input_error,
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"You have chosen an invalid input value: nine. Please use one of: [1, one, 2, two]");
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}
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// https://github.com/seqan/seqan3/pull/2381

‎test/unit/parser/format_parse_test.cpp‎

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Original file line numberDiff line numberDiff line change
@@ -7,6 +7,7 @@
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#include <ranges>
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#include <sharg/parser.hpp>
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#include <sharg/test/expect_throw_msg.hpp>
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#include <sharg/test/test_fixture.hpp>
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class format_parse_test : public sharg::test::test_fixture
@@ -770,22 +771,10 @@ TEST_F(format_parse_test, error_message_parsing)
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auto parser = get_parser("--value", "-30");
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parser.add_option(option_value, sharg::config{.long_id = "value"});
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try
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{
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parser.parse();
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FAIL();
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}
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catch (sharg::user_input_error const & exception)
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{
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std::string_view const expected_message{"Value parse failed for --value: Argument -30 could not be parsed as "
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"type unsigned 64 bit integer."};
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EXPECT_EQ(expected_message, exception.what());
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}
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catch (...)
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{
787-
FAIL();
788-
}
774+
EXPECT_THROW_MSG(parser.parse(),
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sharg::user_input_error,
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"Value parse failed for --value: Argument -30 could "
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"not be parsed as type unsigned 64 bit integer.");
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}
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// https://github.com/seqan/seqan3/pull/2381

‎test/unit/parser/parser_design_error_test.cpp‎

Lines changed: 20 additions & 26 deletions
Original file line numberDiff line numberDiff line change
@@ -5,6 +5,7 @@
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#include <gtest/gtest.h>
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#include <sharg/parser.hpp>
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#include <sharg/test/expect_throw_msg.hpp>
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#include <sharg/test/test_fixture.hpp>
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class design_error_test : public sharg::test::test_fixture
@@ -295,30 +296,23 @@ TEST_F(design_error_test, not_allowed_after_parse)
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parser.add_option(value, sharg::config{.short_id = 'i'});
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EXPECT_NO_THROW(parser.parse());
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298-
auto check_error = [](auto call_fn, std::string const function_name)
299-
{
300-
try
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{
302-
call_fn();
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FAIL();
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}
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catch (sharg::design_error const & exception)
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{
307-
EXPECT_EQ(function_name + " may only be used before calling parse().", exception.what());
308-
}
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catch (...)
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{
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FAIL();
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}
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};
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// clang-format off
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check_error([&parser, &value]() { parser.add_option(value, sharg::config{.short_id = 'i'}); }, "add_option");
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check_error([&parser, &flag]() { parser.add_flag(flag, sharg::config{.short_id = 'i'}); }, "add_flag");
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check_error([&parser, &value]() { parser.add_positional_option(value, sharg::config{}); }, "add_positional_option");
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check_error([&parser]() { parser.add_section(""); }, "add_section");
320-
check_error([&parser]() { parser.add_subsection(""); }, "add_subsection");
321-
check_error([&parser]() { parser.add_line(""); }, "add_line");
322-
check_error([&parser]() { parser.add_list_item("", ""); }, "add_list_item");
323-
// clang-format on
299+
EXPECT_THROW_MSG(parser.add_option(value, sharg::config{.short_id = 'i'}),
300+
sharg::design_error,
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"add_option may only be used before calling parse().");
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EXPECT_THROW_MSG(parser.add_flag(flag, sharg::config{.short_id = 'i'}),
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sharg::design_error,
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"add_flag may only be used before calling parse().");
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EXPECT_THROW_MSG(parser.add_positional_option(value, sharg::config{}),
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sharg::design_error,
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"add_positional_option may only be used before calling parse().");
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EXPECT_THROW_MSG(parser.add_section(""),
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sharg::design_error,
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"add_section may only be used before calling parse().");
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EXPECT_THROW_MSG(parser.add_subsection(""),
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sharg::design_error,
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"add_subsection may only be used before calling parse().");
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EXPECT_THROW_MSG(parser.add_line(""), sharg::design_error, "add_line may only be used before calling parse().");
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EXPECT_THROW_MSG(parser.add_list_item("", ""),
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sharg::design_error,
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"add_list_item may only be used before calling parse().");
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}

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