mirror of
https://github.com/eried/portapack-mayhem.git
synced 2024-10-01 01:26:06 -04:00
463 lines
13 KiB
C++
463 lines
13 KiB
C++
/*
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* Copyright (C) 2023 Kyle Reed
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*
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* This file is part of PortaPack.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#include "doctest.h"
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#include "file.hpp"
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#include "file_wrapper.hpp"
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#include "mock_file.hpp"
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TEST_SUITE_BEGIN("Test BufferWrapper");
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TEST_CASE("It can wrap a MockFile.") {
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MockFile f{""};
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auto w = wrap_buffer(f);
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}
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SCENARIO("Empty file") {
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GIVEN("An empty file") {
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MockFile f{""};
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auto w = wrap_buffer(f);
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WHEN("Initializing") {
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CHECK_EQ(w.size(), 0);
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REQUIRE_EQ(w.line_count(), 1);
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}
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WHEN("Getting line_range()") {
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auto r = w.line_range(0);
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CHECK(r);
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CHECK_EQ(r->start, 0);
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CHECK_EQ(r->end, 1);
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}
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WHEN("Getting line_length()") {
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CHECK_EQ(w.line_length(0), 1);
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}
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}
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}
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SCENARIO("Basic file") {
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GIVEN("A file") {
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MockFile f{"abc\ndef"};
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auto w = wrap_buffer(f);
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WHEN("Initializing") {
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CHECK_EQ(w.size(), 7);
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REQUIRE_EQ(w.line_count(), 2);
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}
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WHEN("Getting line_range()") {
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auto r = w.line_range(0);
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CHECK(r);
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CHECK_EQ(r->start, 0);
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CHECK_EQ(r->end, 4);
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r = w.line_range(1);
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CHECK(r);
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CHECK_EQ(r->start, 4);
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CHECK_EQ(r->end, 7);
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}
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WHEN("Getting line_length()") {
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CHECK_EQ(w.line_length(0), 4);
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CHECK_EQ(w.line_length(1), 3);
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}
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}
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}
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SCENARIO("Reading file lines.") {
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GIVEN("A valid file") {
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MockFile f{"abc\ndef"};
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auto w = wrap_buffer(f);
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WHEN("Reading a line") {
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auto str = w.get_text(0, 0, 10);
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THEN("It should read exactly one line.") {
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REQUIRE(str);
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CHECK_EQ(str->length(), 4); // Includes '\n'
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CHECK_EQ(*str, "abc\n");
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}
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}
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WHEN("Reading the last line") {
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auto str = w.get_text(w.line_count() - 1, 0, 10);
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THEN("It should read exactly one line.") {
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REQUIRE(str);
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CHECK_EQ(str->length(), 3);
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CHECK_EQ(*str, "def");
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}
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}
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WHEN("Reading past the last line") {
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auto str = w.get_text(w.line_count(), 0, 10);
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THEN("It should return empty value.") {
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REQUIRE(!str);
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}
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}
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}
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}
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SCENARIO("Reading with cache miss.") {
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GIVEN("A valid file") {
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MockFile f{"abc\ndef\nghi\njkl\nmno"};
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constexpr uint32_t cache_size = 2;
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auto w = wrap_buffer<cache_size>(f);
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CHECK_EQ(w.start_line(), 0);
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WHEN("Reading a cached line") {
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auto str = w.get_text(0, 0, 10);
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THEN("It should read exactly one line.") {
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REQUIRE(str);
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CHECK_EQ(*str, "abc\n");
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}
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}
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WHEN("Reading line after last cached line.") {
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auto str = w.get_text(w.line_count() - 1, 0, 10);
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THEN("It should read exactly one line.") {
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REQUIRE(str);
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CHECK_EQ(*str, "mno");
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}
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THEN("It should push cache window forward to include line.") {
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CHECK_EQ(w.start_line(), w.line_count() - cache_size);
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}
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}
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WHEN("Reading line before first cached line.") {
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// First move cache forward to end.
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w.get_text(w.line_count() - 1, 0, 10);
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auto str = w.get_text(1, 0, 10);
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THEN("It should read exactly one line.") {
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REQUIRE(str);
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CHECK_EQ(*str, "def\n");
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}
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THEN("It should push cache window backward to include line.") {
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CHECK_EQ(w.start_line(), 1);
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}
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}
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WHEN("Reading line 0 before first cached line.") {
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// First move cache forward to end, then back to beginning.
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w.get_text(w.line_count() - 1, 0, 10);
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auto str = w.get_text(0, 0, 10);
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THEN("It should read exactly one line.") {
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REQUIRE(str);
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CHECK_EQ(*str, "abc\n");
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}
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THEN("It should push cache window backward to include line.") {
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CHECK_EQ(w.start_line(), 0);
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}
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}
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}
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}
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SCENARIO("Replace range of same size.") {
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GIVEN("A file with lines") {
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MockFile f{"abc\ndef"};
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auto w = wrap_buffer(f);
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auto init_line_count = w.line_count();
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auto init_size = w.size();
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WHEN("Replacing range without changing size") {
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w.replace_range({0, 3}, "xyz");
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CHECK_EQ("xyz\ndef", f.data_);
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THEN("size should not change.") {
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CHECK_EQ(w.size(), init_size);
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}
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THEN("text should be replaced.") {
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auto str = w.get_text(0, 0, 10);
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REQUIRE(str);
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CHECK_EQ(*str, "xyz\n");
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}
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}
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}
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}
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SCENARIO("Replace range that increases size.") {
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GIVEN("A file with lines") {
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MockFile f{"abc\ndef"};
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auto w = wrap_buffer(f);
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auto init_line_count = w.line_count();
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auto init_size = w.size();
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WHEN("Replacing range with larger size") {
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w.replace_range({0, 3}, "wxyz");
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CHECK_EQ(f.data_, "wxyz\ndef");
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THEN("size should be increased.") {
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CHECK_EQ(w.size(), init_size + 1);
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}
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THEN("text should be replaced.") {
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auto str = w.get_text(0, 0, 10);
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REQUIRE(str);
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CHECK_EQ(*str, "wxyz\n");
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}
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THEN("following text should not be modified.") {
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auto str = w.get_text(1, 0, 10);
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REQUIRE(str);
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CHECK_EQ(*str, "def");
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}
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}
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}
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GIVEN("A file larger than internal buffer_size (512)") {
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std::string content = std::string(599, 'a');
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content.push_back('x');
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MockFile f{content};
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auto w = wrap_buffer(f);
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auto init_line_count = w.line_count();
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auto init_size = w.size();
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WHEN("Replacing range with larger size") {
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w.replace_range({0, 2}, "bbb");
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THEN("size should be increased.") {
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CHECK_EQ(w.size(), init_size + 1);
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}
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THEN("text should be replaced.") {
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auto str = w.get_text(0, 0, 10);
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REQUIRE(str);
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CHECK_EQ(*str, "bbbaaaaaaa");
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}
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THEN("end text should be preserved.") {
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CHECK_EQ(f.data_.back(), 'x');
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}
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}
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}
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}
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SCENARIO("Replace range that decreases size.") {
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GIVEN("A file with lines") {
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MockFile f{"abc\ndef"};
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auto w = wrap_buffer(f);
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auto init_line_count = w.line_count();
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auto init_size = w.size();
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WHEN("Replacing range with smaller size") {
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w.replace_range({0, 3}, "yz");
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CHECK_EQ(f.data_, "yz\ndef");
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THEN("size should be decreased.") {
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CHECK_EQ(w.size(), init_size - 1);
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}
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THEN("text should be replaced.") {
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auto str = w.get_text(0, 0, 10);
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REQUIRE(str);
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CHECK_EQ(*str, "yz\n");
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}
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THEN("following text should not be modified.") {
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auto str = w.get_text(1, 0, 10);
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REQUIRE(str);
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CHECK_EQ(*str, "def");
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}
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}
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}
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GIVEN("A file larger than internal buffer_size (512)") {
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std::string content = std::string(599, 'a');
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content.push_back('x');
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MockFile f{content};
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auto w = wrap_buffer(f);
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auto init_line_count = w.line_count();
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auto init_size = w.size();
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WHEN("Replacing range with smaller size") {
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w.replace_range({0, 10}, "b");
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THEN("size should be decreased.") {
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CHECK_EQ(w.size(), init_size - 9);
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}
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THEN("text should be replaced.") {
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auto str = w.get_text(0, 0, 10);
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REQUIRE(str);
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CHECK_EQ(*str, "baaaaaaaaa");
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}
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THEN("end should be moved toward front.") {
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CHECK_EQ(f.data_.back(), 'x');
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}
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}
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}
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}
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SCENARIO("Insert line.") {
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GIVEN("A file with lines") {
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MockFile f{"abc\ndef\nghi\n"};
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auto w = wrap_buffer(f);
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auto init_line_count = w.line_count();
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auto init_size = w.size();
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WHEN("Inserting before the first line") {
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w.insert_line(0);
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THEN("should increment line count and size.") {
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CHECK_EQ(w.line_count(), init_line_count + 1);
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CHECK_EQ(w.size(), init_size + 1);
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}
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THEN("should insert empty line content.") {
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auto str = w.get_text(0, 0, 10);
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CHECK_EQ(*str, "\n");
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}
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THEN("first line should be pushed down.") {
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auto str = w.get_text(1, 0, 10);
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CHECK_EQ(*str, "abc\n");
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}
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}
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WHEN("Inserting before the last line") {
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w.insert_line(2);
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THEN("should increment line count and size.") {
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CHECK_EQ(w.line_count(), init_line_count + 1);
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CHECK_EQ(w.size(), init_size + 1);
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}
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THEN("should insert empty line content.") {
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auto str = w.get_text(2, 0, 10);
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CHECK_EQ(*str, "\n");
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}
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THEN("last line should be pushed down.") {
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auto str = w.get_text(3, 0, 10);
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CHECK_EQ(*str, "ghi\n");
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}
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}
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WHEN("Inserting after the last line") {
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w.insert_line(w.line_count());
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THEN("should increment line count and size.") {
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CHECK_EQ(w.line_count(), init_line_count + 1);
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CHECK_EQ(w.size(), init_size + 1);
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}
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THEN("should insert empty line content.") {
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auto str = w.get_text(3, 0, 10);
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CHECK_EQ(*str, "\n");
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}
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}
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}
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}
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SCENARIO("Delete line.") {
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GIVEN("A file with lines") {
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MockFile f{"abc\ndef\nghi"};
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auto w = wrap_buffer(f);
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auto init_line_count = w.line_count();
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auto init_size = w.size();
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WHEN("Deleting the first line") {
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w.delete_line(0);
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THEN("should decrement line count and size.") {
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CHECK_EQ(w.line_count(), init_line_count - 1);
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CHECK_EQ(w.size(), init_size - 4);
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}
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THEN("should remove first line content.") {
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auto str = w.get_text(0, 0, 10);
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CHECK_EQ(*str, "def\n");
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}
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}
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WHEN("Deleting the middle line") {
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w.delete_line(1);
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THEN("should decrement line count and size.") {
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CHECK_EQ(w.line_count(), init_line_count - 1);
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CHECK_EQ(w.size(), init_size - 4);
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}
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THEN("should remove middle line content.") {
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auto str = w.get_text(1, 0, 10);
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CHECK_EQ(*str, "ghi");
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}
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}
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WHEN("Deleting the last line") {
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w.delete_line(2);
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THEN("should decrement line count and size.") {
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CHECK_EQ(w.line_count(), init_line_count - 1);
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CHECK_EQ(w.size(), init_size - 3);
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}
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THEN("should remove last line content.") {
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auto str = w.get_text(2, 0, 10);
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CHECK(!str);
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}
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}
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}
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}
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SCENARIO("It calls on_read_progress while reading.") {
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GIVEN("A file larger than internal buffer_size (512)") {
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std::string content = std::string(599, 'a');
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content.push_back('x');
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MockFile f{content};
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auto w = wrap_buffer(f);
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auto init_line_count = w.line_count();
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auto init_size = w.size();
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auto called = false;
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w.on_read_progress = [&called](auto, auto) {
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called = true;
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};
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WHEN("Replacing range with larger size") {
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w.replace_range({0, 2}, "bbb");
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THEN("callback should be called.") {
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CHECK(called);
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}
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}
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}
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}
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TEST_SUITE_END(); |