diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..42f47ad
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,66 @@
+#Лучший гайд: https://habr.com/ru/post/329264/
+
+dist:     focal    # используем Ubuntu 20.04 Focal Fossa
+sudo:     required  # используем Virtual Machine (а не Docker container)
+
+language: c       # на практике разницы между специфичным для C++ окружением
+                    # и, скажем, python -- никакой. Но пусть будет cpp.
+
+os:
+    # будем прогонять CI и на Linux, и на Mac OS X...
+    - linux
+    #- osx
+
+compiler:
+    # ... и с помощью GCC, и Clang
+    - gcc
+    #- clang
+
+env:
+    # список переменных окружения, влияющих на матрицу сборки:
+    - BUILD_CONFIGURATION=Debug
+    - BUILD_CONFIGURATION=Release
+    #- TARGET_CPU=amd64
+    
+matrix:
+    exclude:
+        # вручную исключим ненужные элементы из матрицы сборки:
+        - os:       osx
+          compiler: gcc
+
+install:
+    # скрипт настройки среды и установки зависимостей:
+    - source testing/ci-install-$TRAVIS_OS_NAME.sh
+
+script:
+
+    #accuracy:
+    - cppcheck --error-exitcode=1 --suppress=missingIncludeSystem --enable=style,performance,portability,warning project/
+
+    # скрипт сборки и тестирования проекта:
+    - mkdir build
+    - cd build
+    - cmake .. -DCMAKE_BUILD_TYPE=$BUILD_CONFIGURATION -DCMAKE_CXX_FLAGS="--coverage"
+    # -DTARGET_CPU=$TARGET_CPU
+    - cmake --build .
+    
+    - ctest --output-on-failure
+    #- gcovr -r ..
+    - lcov --directory . --capture --output-file coverage.info
+    - lcov --remove coverage.info '/usr/*' "${HOME}"'/.cache/*' --output-file coverage.info
+    - lcov --list coverage.info
+    #- codecov
+    - curl -s https://codecov.io/bash > .codecov
+    - chmod +x .codecov
+    - ./.codecov
+
+    #safety:
+    - valgrind --error-exitcode=1 --tool=memcheck --leak-check=full ./program ../testing/logic/cases/17.txt
+
+after_success:
+    # public:
+    - bash <(curl -s https://codecov.io/bash)
+    
+
+    #private
+    #- bash <(curl -s https://codecov.io/bash) -t your-repository-upload-token
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..d58d386
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,24 @@
+cmake_minimum_required(VERSION 3.16)
+project(hw1)
+set(CMAKE_C_STANDARD 11)
+
+set(CMAKE_C_FLAGS "-g -coverage -O0 -Wall -fprofile-arcs -ftest-coverage -fPIC")
+set(CMAKE_CXX_FLAGS "-g -coverage -O0 -Wall -fprofile-arcs -ftest-coverage -fPIC")
+set(CMAKE_CXX_OUTPUT_EXTENSION_REPLACE 1)
+
+include_directories(project/include/)
+add_executable(program project/src/program.c project/src/hw-1.c)
+
+enable_testing()
+find_package(GTest REQUIRED)
+
+include_directories(${GTEST_INCLUDE_DIRS})
+message(${GTEST_LIBRARIES})
+message(${GTEST_INCLUDE_DIRS})
+
+add_executable(tests testing/tests.cpp)
+target_link_libraries(tests ${GTEST_LIBRARIES} -lpthread)
+
+add_test(program_and_functions_test ./tests)
+add_definitions(-fprofile-arcs -ftest-coverage)
+target_link_libraries(tests -fprofile-arcs)
diff --git a/README.md b/README.md
index 657ccef..4060c09 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,6 @@
 # [Techno] CPP
-Домашки Турчина Дениса
+Домашки Дениса Турчина
+АПО-13 Вар 74
+
+# Вариант #74
+Разработать программу, которая на вход принимает исходный код на языке C, находит в нём все комментарии (однострочные и многострочные) и для каждого из них заполняет структуру, содержащую информацию о тексте комментария, его типе и о номерах строк, на которых он расположен. В результате должен получиться список таких структур, который нужно вывести на экран.
diff --git a/project/include/hw-1.h b/project/include/hw-1.h
new file mode 100644
index 0000000..3aa300b
--- /dev/null
+++ b/project/include/hw-1.h
@@ -0,0 +1,44 @@
+//
+// Created by denactive on 12.03.2021.
+//
+#ifndef PROJECT_HW_1_H
+#define PROJECT_HW_1_H
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#define BUFFER_SIZE 1024
+#define SYNTAX_ERROR 1
+
+enum {
+    single,
+    multiline
+};
+
+typedef struct {
+    char* beg;
+    char* end;
+    size_t line;
+    unsigned int type;
+} comment;
+
+int parse_comments(const char* str, size_t *line_cnt, comment **res, size_t *comments_amount);
+
+char* execute_line_comment(const char *str, size_t *line_cnt, comment **res, size_t *comments_amount);
+char* execute_multiline_comment(const char *str, size_t *line_cnt, comment **res, size_t *comments_amount);
+
+int res_exp(comment **res, size_t *comments_amount);
+int free_res(comment **res);
+void print_res(const comment *res, size_t *comments_amount);
+void print_comment(const comment* c);
+
+char* console_input();
+char* file_input(const char *filename, struct stat* stat_buf);
+
+#endif //PROJECT_HW_1_H
\ No newline at end of file
diff --git a/project/src/hw-1.c b/project/src/hw-1.c
new file mode 100644
index 0000000..3a5bd8d
--- /dev/null
+++ b/project/src/hw-1.c
@@ -0,0 +1,272 @@
+//
+// Created by denactive on 12.03.2021.
+//
+
+#include "hw-1.h"
+
+char* skip_to_single_quote(const char *str, size_t *line_cnt);
+char* skip_to_double_quote(const char *str, size_t *line_cnt);
+
+// starts from a sym after ' and returns a sym after closing '
+char* skip_to_single_quote(const char* str, size_t *line_cnt) {
+    if (!line_cnt || !str)
+        return NULL;
+    while (*str != '\'') {
+        if (*str == '\n')
+            (*line_cnt)++;
+        if (*str == NULL || *str == EOF || *str == '\0')
+            return NULL;
+        // \' avoidance
+        if (*str == '\\') {
+            str++;
+            if (*str == NULL || *str == EOF || *str == '\0')
+                str--;
+        }
+        str++;
+    }
+    return (char*)str + 1;
+}
+
+// starts from a sym after " and returns a sym after closing "
+char* skip_to_double_quote(const char* str, size_t *line_cnt) {
+    if (!line_cnt || !str)
+        return NULL;
+    while (*str != '\"') {
+        if (*str == '\n')
+            (*line_cnt)++;
+        if (*str == NULL || *str == EOF || *str == '\0')
+            return NULL;
+        // \" avoidance
+        if (*str == '\\') {
+            str++;
+            if (*str == NULL || *str == EOF || *str == '\0')
+                str--;
+        }
+        str++;
+    }
+    return (char*)str + 1;
+}
+
+char* execute_line_comment(const char *str, size_t *line_cnt, comment **res, size_t *comments_amount) {
+    if (!line_cnt || !res || !comments_amount || !str)
+        return NULL;
+    comment executed = {(char*)str, NULL, *line_cnt, single};
+
+    while (*str != '\n') {
+        if (*str == NULL || *str == EOF || *str == '\0')
+            return NULL;
+        str++;
+    }
+    executed.end = (char*)str - 1;
+
+    // saving
+    if (res_exp(res, comments_amount))
+        return NULL;
+
+    (*res)[(*comments_amount) - 1] = executed;
+    (*line_cnt)++;
+    return (char*)str + 1;
+}
+
+char* execute_multiline_comment(const char *str, size_t *line_cnt, comment **res, size_t *comments_amount) {
+    if (!line_cnt || !res || !comments_amount || !str)
+        return NULL;
+    // we are here after /* symbols.
+    comment executed = {(char*)str, NULL, *line_cnt, single};
+
+    // an exception for /*/ smtg */ situation
+    if (*str == '/')
+        str++;
+
+    // totally safe :)
+    while (*str != '/' || *(str - 1) != '*') {
+        if (*str == '\n') {
+            executed.type = multiline;
+            (*line_cnt)++;
+        }
+        if (*str == NULL || *str == EOF || *str == '\0')
+            return NULL;
+        str++;
+    }
+    executed.end = (char*)str - 2;
+
+    // saving
+    if (res_exp(res, comments_amount))
+        return NULL;
+
+    (*res)[(*comments_amount) - 1] = executed;
+    return (char*)str + 1;
+}
+
+int res_exp(comment **res, size_t *comments_amount) {
+    if (!comments_amount)
+        return -1;
+
+    size_t size = 0;
+    if (*comments_amount == 0) {
+        size = sizeof(comment);
+        if (*res) {
+            free(*res);
+            *res = NULL;
+        }
+        *res = (comment*)malloc(size);
+        if (*res) {
+            (*comments_amount)++;
+            return 0;
+        } else {
+            return -1;
+        }
+    } else {
+        size = sizeof(comment) * ((*comments_amount) + 1);
+        comment *tmp = (comment*)realloc(*res, size);
+        if (tmp) {
+            (*comments_amount)++;
+            *res = tmp;
+            return 0;
+        } else {
+            return -1;
+        }
+    }
+}
+
+int free_res(comment **res) {
+    if (!res)
+        return -1;
+    free(*res);
+    *res = NULL;
+    return 0;
+}
+
+void print_res(const comment *res, size_t *comments_amount) {
+    size_t comments_amount_local = 0;
+    if (comments_amount)
+        comments_amount_local = *comments_amount;
+
+    printf("=================\n");
+    if (!res || comments_amount_local == 0)
+        printf("no comments found");
+
+    for (size_t i = 0; i < comments_amount_local; i++) {
+        printf("[%zu]: ", i);
+        print_comment(&res[i]);
+        if (i < comments_amount_local - 1)
+            printf("\n-----------------\n");
+    }
+    printf("\n=================\n");
+}
+
+// this function allocates memory!
+char *console_input() {
+    char *input = (char*)malloc(BUFFER_SIZE * sizeof(char));
+    if (!input)
+        return NULL;
+
+    printf("Enter C code | Press Ctrl+D to end the input | >> ");
+    char sym = '\0';
+    for (int i = 0; sym != EOF && i < BUFFER_SIZE; i++) {
+        sym = getc(stdin);
+        if (i == BUFFER_SIZE - 1) {
+            printf("\nWarning: Buffer overflow - only %d symbols were saved", BUFFER_SIZE - 1);
+            break;
+        }
+        input[i] = sym;
+    }
+    printf("\n");
+
+    //safety
+    input[BUFFER_SIZE - 1] = '\0';
+    return input;
+}
+
+void print_comment(const comment* c) {
+    if (!c) {
+        printf("An empty comment\n");
+        return;
+    }
+    printf("line: %zu; type: ", c->line);
+    if (c->type == single)
+        printf("single-line;\n");
+    if (c->type == multiline)
+        printf("multiline;\n");
+
+    for (char* addr = c->beg; addr <= c->end; addr++)
+        printf("%c", *addr);
+}
+
+char* file_input(const char* filename, struct stat* stat_buf) {
+    int fdin = 0;
+    if ((fdin = open(filename, O_RDONLY)) < 0) {
+        printf("Error | Usage %s invalid\n", filename);
+        NULL;
+    }
+
+    // gain file size
+    if (fstat(fdin, stat_buf) < 0) {
+        printf("Error | Impossible to get the %s size\n", filename);
+        return NULL;
+    }
+
+    // using mmap
+    void* content = NULL;
+    if ((content = mmap(0, stat_buf->st_size, PROT_READ, MAP_SHARED, fdin, 0)) == MAP_FAILED) {
+        printf("Error | mmap error\n");
+        return NULL;
+    }
+
+    return (char*)content;
+}
+
+int parse_comments(const char* str, size_t *line_cnt, comment **res, size_t *comments_amount) {
+    if (!line_cnt || !res || !comments_amount || !str)
+        return -1;
+
+    if (*res && *comments_amount == 0) {
+        free(*res);
+        *res = NULL;
+    }
+    if (*res == NULL)
+        *comments_amount = 0;
+
+    while (*str != '\0' && *str != NULL && *str != EOF) {
+        switch (*str) {
+            case '\"':
+                str = skip_to_double_quote(str + 1, line_cnt);
+                if (!str) {
+                    printf("Error | syntax error\n");
+                    return SYNTAX_ERROR;
+                }
+                break;
+            case '\'':
+                str = skip_to_single_quote(str + 1, line_cnt);
+                if (!str) {
+                    printf("Error | syntax error\n");
+                    return SYNTAX_ERROR;
+                }
+                break;
+            case '\n':
+                (*line_cnt)++;
+                str++;
+                break;
+            case '/':
+                if (*(str + 1) == '/') {
+                    str = execute_line_comment(str + 2, line_cnt, res, comments_amount);
+                    if (!str) {
+                        free_res(res);
+                        return -1;
+                    }
+                }
+                if (*(str + 1) == '*') {
+                    str = execute_multiline_comment(str + 2, line_cnt, res, comments_amount);
+                    if (!str) {
+                        free_res(res);
+                        return -1;
+                    }
+                }
+                break;
+            default:
+                str++;
+                break;
+        }
+    }
+    return 0;
+}
\ No newline at end of file
diff --git a/project/src/program.c b/project/src/program.c
new file mode 100644
index 0000000..68ace5b
--- /dev/null
+++ b/project/src/program.c
@@ -0,0 +1,39 @@
+#include "hw-1.h"
+
+int main(int argc, const char** argv) {
+    char* input = NULL;
+    struct stat stat_buf = {};
+
+    if (argc > 1) {
+        input = file_input(argv[1], &stat_buf);
+    } else {
+        input = console_input();
+    }
+
+    if (!input) {
+        printf("Error | Empty input\n");
+        return -1;
+    }
+
+    comment *res = NULL;
+    size_t comments_amount = 0;
+    size_t line_cnt = 1;
+    int exec_code = parse_comments(input, &line_cnt, &res, &comments_amount);
+
+    if (exec_code == -1)
+        return -1;
+
+    if (exec_code == 0)
+        print_res(res, &comments_amount);
+
+    if (argc > 1) {
+        // file mapping closing
+        if (munmap((void*)input, stat_buf.st_size))
+            printf("Error | failed to unmap %s\n", argv[1]);
+    } else {
+        free(input);
+    }
+
+    free_res(&res);
+    return 0;
+}
diff --git a/testing/ci-install-linux.sh b/testing/ci-install-linux.sh
new file mode 100644
index 0000000..e68ba17
--- /dev/null
+++ b/testing/ci-install-linux.sh
@@ -0,0 +1,26 @@
+sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
+sudo apt-get update -qq
+
+sudo apt-get install -qq g++-5
+sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-5 90
+
+sudo apt-get install cmake
+
+sudo apt-get install libgtest-dev
+cd /usr/src/gtest
+sudo cmake CMakeLists.txt
+sudo make
+sudo cp ./lib/libgtest*.a /usr/lib
+cd -
+
+sudo apt-get install -y valgrind
+
+sudo apt-get install -y cppcheck
+
+#gcovr
+#Installing python is unnesessary
+#sudo apt install -y python3-pip
+sudo apt-get install python3-setuptools && sudo pip3 install git+https://github.com/gcovr/gcovr.git
+
+#lcov
+sudo apt-get install lcov
diff --git a/testing/ci-install-osx.sh b/testing/ci-install-osx.sh
new file mode 100644
index 0000000..e69de29
diff --git a/testing/logic/answers/1.txt b/testing/logic/answers/1.txt
new file mode 100644
index 0000000..2b73f76
--- /dev/null
+++ b/testing/logic/answers/1.txt
@@ -0,0 +1,4 @@
+=================
+[0]: line: 1; type: single-line;
+simple comment
+=================
diff --git a/testing/logic/answers/10.txt b/testing/logic/answers/10.txt
new file mode 100644
index 0000000..cbbc078
--- /dev/null
+++ b/testing/logic/answers/10.txt
@@ -0,0 +1,5 @@
+=================
+[0]: line: 1; type: multiline;
+multi
+line comments
+=================
diff --git a/testing/logic/answers/11.txt b/testing/logic/answers/11.txt
new file mode 100644
index 0000000..ba49bdd
--- /dev/null
+++ b/testing/logic/answers/11.txt
@@ -0,0 +1,28 @@
+=================
+[0]: line: 1; type: multiline;
+
+h
+e
+r
+e
+
+"is"
+
+a
+
+"really silly"
+     c
+      o
+       m
+
+
+
+       m
+      e
+    'n'
+    t
+/structure/
+-----------------
+[1]: line: 24; type: single-line;
+ this is a 24th line
+=================
diff --git a/testing/logic/answers/12.txt b/testing/logic/answers/12.txt
new file mode 100644
index 0000000..e07f9b5
--- /dev/null
+++ b/testing/logic/answers/12.txt
@@ -0,0 +1,16 @@
+=================
+[0]: line: 1; type: single-line;
+line-1
+-----------------
+[1]: line: 2; type: single-line;
+line-2
+-----------------
+[2]: line: 3; type: single-line;
+line-3
+-----------------
+[3]: line: 6; type: single-line;
+line-6
+-----------------
+[4]: line: 9; type: single-line;
+line-9
+=================
diff --git a/testing/logic/answers/13.txt b/testing/logic/answers/13.txt
new file mode 100644
index 0000000..77b6536
--- /dev/null
+++ b/testing/logic/answers/13.txt
@@ -0,0 +1,25 @@
+=================
+[0]: line: 16; type: single-line;
+line 16
+-----------------
+[1]: line: 18; type: multiline;
+
+19
+20
+21
+22
+23
+
+-----------------
+[2]: line: 26; type: single-line;
+26 line)))
+-----------------
+[3]: line: 29; type: single-line;
+29 line))  ((  //  //////
+-----------------
+[4]: line: 30; type: single-line;
+30 line))0 /*hi // */ "'"' '/' '\n' "/" bye(
+-----------------
+[5]: line: 32; type: single-line;
+why is this singleline? (line 32)
+=================
diff --git a/testing/logic/answers/14.txt b/testing/logic/answers/14.txt
new file mode 100644
index 0000000..a5284bc
--- /dev/null
+++ b/testing/logic/answers/14.txt
@@ -0,0 +1 @@
+Error | syntax error
diff --git a/testing/logic/answers/15.txt b/testing/logic/answers/15.txt
new file mode 100644
index 0000000..0d81c20
--- /dev/null
+++ b/testing/logic/answers/15.txt
@@ -0,0 +1,20 @@
+=================
+[0]: line: 1; type: single-line;
+this is a quotes exception test
+-----------------
+[1]: line: 3; type: single-line;
+'a'
+-----------------
+[2]: line: 5; type: single-line;
+'/'
+-----------------
+[3]: line: 7; type: single-line;
+"but this should" <-- watch quotes here
+-----------------
+[4]: line: 8; type: multiline;
+
+//
+/
+/* /
+
+=================
diff --git a/testing/logic/answers/16.txt b/testing/logic/answers/16.txt
new file mode 100644
index 0000000..a5284bc
--- /dev/null
+++ b/testing/logic/answers/16.txt
@@ -0,0 +1 @@
+Error | syntax error
diff --git a/testing/logic/answers/17.txt b/testing/logic/answers/17.txt
new file mode 100644
index 0000000..b397180
--- /dev/null
+++ b/testing/logic/answers/17.txt
@@ -0,0 +1,136 @@
+=================
+[0]: line: 1; type: single-line;
+comment
+-----------------
+[1]: line: 2; type: single-line;
+comment
+-----------------
+[2]: line: 3; type: single-line;
+comment
+-----------------
+[3]: line: 4; type: single-line;
+comment
+-----------------
+[4]: line: 5; type: single-line;
+comment
+-----------------
+[5]: line: 6; type: single-line;
+comment
+-----------------
+[6]: line: 7; type: single-line;
+comment
+-----------------
+[7]: line: 8; type: single-line;
+comment
+-----------------
+[8]: line: 9; type: single-line;
+comment
+-----------------
+[9]: line: 10; type: single-line;
+comment
+-----------------
+[10]: line: 11; type: single-line;
+comment
+-----------------
+[11]: line: 12; type: single-line;
+comment
+-----------------
+[12]: line: 13; type: single-line;
+comment
+-----------------
+[13]: line: 14; type: single-line;
+comment
+-----------------
+[14]: line: 15; type: single-line;
+comment
+-----------------
+[15]: line: 16; type: single-line;
+comment
+-----------------
+[16]: line: 17; type: single-line;
+comment
+-----------------
+[17]: line: 18; type: single-line;
+comment
+-----------------
+[18]: line: 19; type: single-line;
+comment
+-----------------
+[19]: line: 20; type: single-line;
+comment
+-----------------
+[20]: line: 21; type: single-line;
+comment
+-----------------
+[21]: line: 22; type: single-line;
+comment
+-----------------
+[22]: line: 23; type: single-line;
+comment
+-----------------
+[23]: line: 24; type: single-line;
+comment
+-----------------
+[24]: line: 25; type: single-line;
+word
+-----------------
+[25]: line: 26; type: single-line;
+word
+-----------------
+[26]: line: 27; type: single-line;
+word
+-----------------
+[27]: line: 28; type: single-line;
+word
+-----------------
+[28]: line: 29; type: single-line;
+word
+-----------------
+[29]: line: 30; type: single-line;
+word
+-----------------
+[30]: line: 31; type: single-line;
+word
+-----------------
+[31]: line: 32; type: single-line;
+word
+-----------------
+[32]: line: 33; type: single-line;
+word
+-----------------
+[33]: line: 34; type: single-line;
+word
+-----------------
+[34]: line: 35; type: single-line;
+word
+-----------------
+[35]: line: 36; type: single-line;
+word
+-----------------
+[36]: line: 37; type: single-line;
+word
+-----------------
+[37]: line: 38; type: single-line;
+word
+-----------------
+[38]: line: 39; type: single-line;
+word
+-----------------
+[39]: line: 40; type: single-line;
+word
+-----------------
+[40]: line: 41; type: single-line;
+word
+-----------------
+[41]: line: 42; type: single-line;
+word
+-----------------
+[42]: line: 43; type: single-line;
+word
+-----------------
+[43]: line: 44; type: single-line;
+word
+-----------------
+[44]: line: 45; type: single-line;
+comment
+=================
diff --git a/testing/logic/answers/2.txt b/testing/logic/answers/2.txt
new file mode 100644
index 0000000..e85a75f
--- /dev/null
+++ b/testing/logic/answers/2.txt
@@ -0,0 +1,3 @@
+=================
+no comments found
+=================
diff --git a/testing/logic/answers/3.txt b/testing/logic/answers/3.txt
new file mode 100644
index 0000000..2d3f63a
--- /dev/null
+++ b/testing/logic/answers/3.txt
@@ -0,0 +1,4 @@
+=================
+[0]: line: 1; type: single-line;
+simple multiline
+=================
diff --git a/testing/logic/answers/4.txt b/testing/logic/answers/4.txt
new file mode 100644
index 0000000..6c32010
--- /dev/null
+++ b/testing/logic/answers/4.txt
@@ -0,0 +1,6 @@
+=================
+[0]: line: 1; type: multiline;
+realy
+multiline
+
+=================
diff --git a/testing/logic/answers/5.txt b/testing/logic/answers/5.txt
new file mode 100644
index 0000000..f002d67
--- /dev/null
+++ b/testing/logic/answers/5.txt
@@ -0,0 +1,5 @@
+=================
+[0]: line: 1; type: multiline;
+
+multiline
+=================
diff --git a/testing/logic/answers/6.txt b/testing/logic/answers/6.txt
new file mode 100644
index 0000000..366c18f
--- /dev/null
+++ b/testing/logic/answers/6.txt
@@ -0,0 +1,10 @@
+=================
+[0]: line: 1; type: single-line;
+double
+-----------------
+[1]: line: 2; type: single-line;
+comment
+-----------------
+[2]: line: 2; type: single-line;
+case
+=================
diff --git a/testing/logic/answers/7.txt b/testing/logic/answers/7.txt
new file mode 100644
index 0000000..aa5f92f
--- /dev/null
+++ b/testing/logic/answers/7.txt
@@ -0,0 +1,4 @@
+=================
+[0]: line: 1; type: single-line;
+and a comment
+=================
diff --git a/testing/logic/answers/8.txt b/testing/logic/answers/8.txt
new file mode 100644
index 0000000..32ce0a2
--- /dev/null
+++ b/testing/logic/answers/8.txt
@@ -0,0 +1,4 @@
+=================
+[0]: line: 6; type: single-line;
+ pretty comment
+=================
diff --git a/testing/logic/answers/9.txt b/testing/logic/answers/9.txt
new file mode 100644
index 0000000..96e4e07
--- /dev/null
+++ b/testing/logic/answers/9.txt
@@ -0,0 +1,4 @@
+=================
+[0]: line: 2; type: single-line;
+multiline comment in a single row
+=================
diff --git a/testing/logic/cases/1.txt b/testing/logic/cases/1.txt
new file mode 100644
index 0000000..45380ab
--- /dev/null
+++ b/testing/logic/cases/1.txt
@@ -0,0 +1 @@
+//simple comment
diff --git a/testing/logic/cases/10.txt b/testing/logic/cases/10.txt
new file mode 100644
index 0000000..a749c49
--- /dev/null
+++ b/testing/logic/cases/10.txt
@@ -0,0 +1,2 @@
+this if a hard test for "/*quotes*/" and /*multi
+line comments*/
diff --git a/testing/logic/cases/11.txt b/testing/logic/cases/11.txt
new file mode 100644
index 0000000..ca30405
--- /dev/null
+++ b/testing/logic/cases/11.txt
@@ -0,0 +1,24 @@
+hello one more time/*
+h
+e
+r
+e
+
+"is"
+
+a
+
+"really silly"
+     c
+      o
+       m
+
+
+
+       m
+      e
+    'n'
+    t
+/structure/*/
+
+// this is a 24th line
diff --git a/testing/logic/cases/12.txt b/testing/logic/cases/12.txt
new file mode 100644
index 0000000..07664ca
--- /dev/null
+++ b/testing/logic/cases/12.txt
@@ -0,0 +1,9 @@
+//line-1
+//line-2
+//line-3
+
+
+//line-6
+
+
+//line-9
diff --git a/testing/logic/cases/13.txt b/testing/logic/cases/13.txt
new file mode 100644
index 0000000..8e9d5e9
--- /dev/null
+++ b/testing/logic/cases/13.txt
@@ -0,0 +1,32 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+this is //line 16
+
+/*
+19
+20
+21
+22
+23
+*/
+
+//26 line)))
+
+
+//29 line))  ((  //  //////
+//30 line))0 /*hi // */ "'"' '/' '\n' "/" bye(
+
+/*why is this singleline? (line 32)*/
diff --git a/testing/logic/cases/14.txt b/testing/logic/cases/14.txt
new file mode 100644
index 0000000..6092a0d
--- /dev/null
+++ b/testing/logic/cases/14.txt
@@ -0,0 +1,6 @@
+//oh nooo
+
+//is this a Syntax error ?
+
+probably "yea
+
diff --git a/testing/logic/cases/15.txt b/testing/logic/cases/15.txt
new file mode 100644
index 0000000..484ca97
--- /dev/null
+++ b/testing/logic/cases/15.txt
@@ -0,0 +1,17 @@
+//this is a quotes exception test
+'a'
+//'a'
+'/'
+//'/'
+"this should not be printed"
+//"but this should" <-- watch quotes here
+/*
+//
+/
+/* /
+*/
+
+"wtf these quates \" are \' still \" not 'closed' ?
+"
+
+"/*hello world again*/"
diff --git a/testing/logic/cases/16.txt b/testing/logic/cases/16.txt
new file mode 100644
index 0000000..27e4e27
--- /dev/null
+++ b/testing/logic/cases/16.txt
@@ -0,0 +1 @@
+"this is invalid string I swear //""
diff --git a/testing/logic/cases/17.txt b/testing/logic/cases/17.txt
new file mode 100644
index 0000000..1caf4a0
--- /dev/null
+++ b/testing/logic/cases/17.txt
@@ -0,0 +1,45 @@
+//comment
+//comment
+//comment
+//comment
+//comment
+//comment
+//comment
+//comment
+//comment
+//comment
+//comment
+//comment
+//comment
+//comment
+//comment
+//comment
+//comment
+//comment
+//comment
+//comment
+//comment
+//comment
+//comment
+//comment
+//word
+//word
+//word
+//word
+//word
+//word
+//word
+//word
+//word
+//word
+//word
+//word
+//word
+//word
+//word
+//word
+//word
+//word
+//word
+//word
+//comment
diff --git a/testing/logic/cases/2.txt b/testing/logic/cases/2.txt
new file mode 100644
index 0000000..5b0edfe
--- /dev/null
+++ b/testing/logic/cases/2.txt
@@ -0,0 +1 @@
+no comments
diff --git a/testing/logic/cases/3.txt b/testing/logic/cases/3.txt
new file mode 100644
index 0000000..b8d46b4
--- /dev/null
+++ b/testing/logic/cases/3.txt
@@ -0,0 +1 @@
+/*simple multiline*/
diff --git a/testing/logic/cases/4.txt b/testing/logic/cases/4.txt
new file mode 100644
index 0000000..e9ad373
--- /dev/null
+++ b/testing/logic/cases/4.txt
@@ -0,0 +1,3 @@
+/*realy
+multiline
+*/
diff --git a/testing/logic/cases/5.txt b/testing/logic/cases/5.txt
new file mode 100644
index 0000000..b26dc59
--- /dev/null
+++ b/testing/logic/cases/5.txt
@@ -0,0 +1,2 @@
+bodied/*
+multiline*/
diff --git a/testing/logic/cases/6.txt b/testing/logic/cases/6.txt
new file mode 100644
index 0000000..2d7a1a2
--- /dev/null
+++ b/testing/logic/cases/6.txt
@@ -0,0 +1,2 @@
+/*double*/
+/*comment*/ missing word //case
diff --git a/testing/logic/cases/7.txt b/testing/logic/cases/7.txt
new file mode 100644
index 0000000..c969501
--- /dev/null
+++ b/testing/logic/cases/7.txt
@@ -0,0 +1,2 @@
+some text//and a comment
+
diff --git a/testing/logic/cases/8.txt b/testing/logic/cases/8.txt
new file mode 100644
index 0000000..4ea06cc
--- /dev/null
+++ b/testing/logic/cases/8.txt
@@ -0,0 +1,7 @@
+some
+long
+text
+and
+here is a
+// pretty comment
+
diff --git a/testing/logic/cases/9.txt b/testing/logic/cases/9.txt
new file mode 100644
index 0000000..948ddef
--- /dev/null
+++ b/testing/logic/cases/9.txt
@@ -0,0 +1,2 @@
+hello world
+here is a /*multiline comment in a single row*/ of text
diff --git a/testing/openfile/answers/1.txt b/testing/openfile/answers/1.txt
new file mode 100644
index 0000000..3b18e51
--- /dev/null
+++ b/testing/openfile/answers/1.txt
@@ -0,0 +1 @@
+hello world
diff --git a/testing/openfile/answers/2.txt b/testing/openfile/answers/2.txt
new file mode 100644
index 0000000..7d03278
--- /dev/null
+++ b/testing/openfile/answers/2.txt
@@ -0,0 +1,3 @@
+here
+we
+go again
diff --git a/testing/openfile/answers/3.txt b/testing/openfile/answers/3.txt
new file mode 100644
index 0000000..8179f38
--- /dev/null
+++ b/testing/openfile/answers/3.txt
@@ -0,0 +1,26 @@
+	 std::string test_filename = "../testing/easytests/logic/" + std::to_string(i) + ".txt";
+        std::string answer_filename = "../testing/easyanswers/logic/" + std::to_string(i) + ".txt";
+        std::fstream is(answer_filename);
+        ASSERT_TRUE(is.is_open());
+        std::string answer_str;
+        char sym = '\0';
+        while (is.get(sym))
+            answer_str += sym;
+        is.close();
+
+        int fd[2];
+        pipe(fd);
+        pid_t pid_fork = fork();
+        int status = 0;
+
+        if (!pid_fork) {
+            // Дочерний процесс
+            close(fd[0]);
+            dup2(fd[1], STDOUT_FILENO);
+
+            std::string res;
+            execl("program", "program", test_filename.c_str(), NULL);
+
+            close(fd[1]);
+            exit(0);
+        }
diff --git a/testing/openfile/answers/4.txt b/testing/openfile/answers/4.txt
new file mode 100644
index 0000000..78d2957
--- /dev/null
+++ b/testing/openfile/answers/4.txt
@@ -0,0 +1,49 @@
+//
+// Created by denactive on 12.03.2021.
+//
+#ifndef PROJECT_HW_1_H
+#define PROJECT_HW_1_H
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+
+#define DEBUG 0
+#define BUFFER_SIZE 1024
+
+enum {
+    single,
+    multiline
+};
+
+typedef struct {
+    char* beg;
+    char* end;
+    size_t line;
+    unsigned int type;
+} comment;
+
+int parse_comments(char* input);
+int parse_comments_from_file(const char *filename);
+int parse_comments_from_console();
+
+char* skip_to_single_quote(char *str, size_t *line_cnt);
+char* skip_to_double_quote(char *str, size_t *line_cnt);
+char* execute_line_comment(char *str, size_t *line_cnt, comment **res, size_t *comments_amount);
+char* execute_multiline_comment(char *str, size_t *line_cnt, comment **res, size_t *comments_amount);
+
+int res_exp(comment **res, size_t *comments_amount);
+int free_res(comment **res);
+
+char* console_input();
+char* file_input(const char *filename, struct stat* stat_buf);
+void print_res(const comment *res, size_t *comments_amount);
+void print_comment(const comment* c);
+
+#endif //PROJECT_HW_1_H
diff --git a/testing/openfile/cases/1.txt b/testing/openfile/cases/1.txt
new file mode 100644
index 0000000..3b18e51
--- /dev/null
+++ b/testing/openfile/cases/1.txt
@@ -0,0 +1 @@
+hello world
diff --git a/testing/openfile/cases/2.txt b/testing/openfile/cases/2.txt
new file mode 100644
index 0000000..7d03278
--- /dev/null
+++ b/testing/openfile/cases/2.txt
@@ -0,0 +1,3 @@
+here
+we
+go again
diff --git a/testing/openfile/cases/3.txt b/testing/openfile/cases/3.txt
new file mode 100644
index 0000000..8179f38
--- /dev/null
+++ b/testing/openfile/cases/3.txt
@@ -0,0 +1,26 @@
+	 std::string test_filename = "../testing/easytests/logic/" + std::to_string(i) + ".txt";
+        std::string answer_filename = "../testing/easyanswers/logic/" + std::to_string(i) + ".txt";
+        std::fstream is(answer_filename);
+        ASSERT_TRUE(is.is_open());
+        std::string answer_str;
+        char sym = '\0';
+        while (is.get(sym))
+            answer_str += sym;
+        is.close();
+
+        int fd[2];
+        pipe(fd);
+        pid_t pid_fork = fork();
+        int status = 0;
+
+        if (!pid_fork) {
+            // Дочерний процесс
+            close(fd[0]);
+            dup2(fd[1], STDOUT_FILENO);
+
+            std::string res;
+            execl("program", "program", test_filename.c_str(), NULL);
+
+            close(fd[1]);
+            exit(0);
+        }
diff --git a/testing/openfile/cases/4.txt b/testing/openfile/cases/4.txt
new file mode 100644
index 0000000..78d2957
--- /dev/null
+++ b/testing/openfile/cases/4.txt
@@ -0,0 +1,49 @@
+//
+// Created by denactive on 12.03.2021.
+//
+#ifndef PROJECT_HW_1_H
+#define PROJECT_HW_1_H
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+
+#define DEBUG 0
+#define BUFFER_SIZE 1024
+
+enum {
+    single,
+    multiline
+};
+
+typedef struct {
+    char* beg;
+    char* end;
+    size_t line;
+    unsigned int type;
+} comment;
+
+int parse_comments(char* input);
+int parse_comments_from_file(const char *filename);
+int parse_comments_from_console();
+
+char* skip_to_single_quote(char *str, size_t *line_cnt);
+char* skip_to_double_quote(char *str, size_t *line_cnt);
+char* execute_line_comment(char *str, size_t *line_cnt, comment **res, size_t *comments_amount);
+char* execute_multiline_comment(char *str, size_t *line_cnt, comment **res, size_t *comments_amount);
+
+int res_exp(comment **res, size_t *comments_amount);
+int free_res(comment **res);
+
+char* console_input();
+char* file_input(const char *filename, struct stat* stat_buf);
+void print_res(const comment *res, size_t *comments_amount);
+void print_comment(const comment* c);
+
+#endif //PROJECT_HW_1_H
diff --git a/testing/tests.cpp b/testing/tests.cpp
new file mode 100644
index 0000000..84d5615
--- /dev/null
+++ b/testing/tests.cpp
@@ -0,0 +1,206 @@
+#include "gtest/gtest.h"
+#include <string>
+#include <fstream>
+#include <iostream>
+#include <unistd.h>
+
+#define LOGIC_TESTS_COUNT 17
+#define TESTS_OPEN_FILE_COUNT 4
+
+extern "C" {
+    #include "hw-1.h"
+    #include "../project/src/hw-1.c"
+};
+
+// TODO: no console print in funcs, but print in main
+
+TEST(LogicTest, Main) {
+    std::cout << "Logic test" << std::endl;
+    for (int i = 1; i <= LOGIC_TESTS_COUNT; i++) {
+        std::string test_filename = "../testing/logic/cases/" + std::to_string(i) + ".txt";
+        std::string answer_filename = "../testing/logic/answers/" + std::to_string(i) + ".txt";
+        std::cout << "\tTesting " << test_filename << std::endl;
+        std::fstream is(answer_filename);
+        ASSERT_TRUE(is.is_open());
+        std::string answer_str;
+        char sym = '\0';
+        while (is.get(sym))
+            answer_str += sym;
+        is.close();
+
+        int fd[2];
+        pipe(fd);
+        pid_t pid_fork = fork();
+        int status = 0;
+
+        if (!pid_fork) {
+            // Дочерний процесс
+            close(fd[0]);
+            dup2(fd[1], STDOUT_FILENO);
+
+            execl("program", "program", test_filename.c_str(), NULL);
+
+            close(fd[1]);
+            exit(0);
+        }
+
+        // Родительский процесс
+        close(fd[1]);
+
+        ssize_t sz;
+        char* buf = (char*)calloc(20 * BUFFER_SIZE, sizeof(char));
+        int err = 0;
+        if (!buf)
+            err = -1;
+        ASSERT_EQ(err, 0);
+
+        sz = read(fd[0], buf, 20 * BUFFER_SIZE);
+        close(fd[0]);
+        ASSERT_GT(sz, 0);
+        waitpid(pid_fork, &status, 0);
+
+        EXPECT_STREQ(buf, answer_str.c_str());
+        free(buf);
+    }
+}
+
+TEST(OpenFile, EasyTest) {
+    std::cout << "File opening test" << std::endl;
+    for (int i = 1; i <= TESTS_OPEN_FILE_COUNT; i++) {
+        std::string test_filename = "../testing/openfile/cases/" + std::to_string(i) + ".txt";
+        std::string answer_filename = "../testing/openfile/answers/" + std::to_string(i) + ".txt";
+        std::cout << "\tTesting " << test_filename << std::endl;
+        std::fstream is(answer_filename);
+        ASSERT_TRUE(is.is_open());
+        std::string answer_str;
+        char sym = '\0';
+        while (is.get(sym))
+            answer_str += sym;
+        is.close();
+
+        struct stat stat_buf;
+        std::string res = file_input(test_filename.c_str(), &stat_buf);
+        EXPECT_STREQ(res.c_str(), answer_str.c_str());
+    }
+}
+
+TEST(ErrorTest, BadFile) {
+    const char invalid_file [] = "not_existing_file.wtf";
+    std::cout << "File opening test" << std::endl;
+    std::cout << "\tTesting " << invalid_file << std::endl;
+
+    struct stat stat_buf;
+    char* res = file_input(invalid_file, &stat_buf);
+    EXPECT_FALSE(res);
+}
+
+TEST(ErrorTest, SingleQuotesSkipping) {
+    const char invalid_line [] = "' here we can see an opening quote, but no closing one";
+    std::cout << "[Error test] | no closing single quote in a file" << std::endl;
+
+    size_t cnt = 1;
+    char* res = skip_to_single_quote(const_cast<char *>(&invalid_line[1]), &cnt);
+    EXPECT_FALSE(res);
+    EXPECT_EQ(cnt, 1);
+}
+
+TEST(ErrorTest, SingleQuotesSkippingMultiline) {
+    const char invalid_line [] = "\" here we can see\nan opening quote,\nbut no closing one";
+    std::cout << "[Error test] | no closing single quote in a multiline file" << std::endl;
+
+    size_t cnt = 1;
+    char* res = skip_to_single_quote(const_cast<char *>(&invalid_line[1]), &cnt);
+    EXPECT_FALSE(res);
+    EXPECT_EQ(cnt, 3);
+}
+
+TEST(ErrorTest, DoubleQuotesSkipping) {
+    const char invalid_line [] = "' here we can see an opening quote, but no closing one";
+    std::cout << "[Error test] | no closing double quote in a file" << std::endl;
+
+    size_t cnt = 1;
+    char* res = skip_to_single_quote(const_cast<char *>(&invalid_line[1]), &cnt);
+    EXPECT_FALSE(res);
+    EXPECT_EQ(cnt, 1);
+}
+
+TEST(ErrorTest, DoubleQuotesSkippingMultiline) {
+    const char invalid_line [] = "\" here we can see\nan opening quote,\nbut no closing one";
+    std::cout << "Error test | no closing double quote in a multiline file" << std::endl;
+
+    size_t cnt = 1;
+    char* res = skip_to_single_quote(const_cast<char *>(&invalid_line[1]), &cnt);
+    EXPECT_FALSE(res);
+    EXPECT_EQ(cnt, 3);
+}
+
+TEST(EdgeTest, SlashesAfterOpeningMultilineComment) {
+    const char line [] = "/this is fucked up multiline\n/*/";
+    const char answer [] = "/this is fucked up multiline\n/";
+    std::cout << "[ EdgeTest ] | /*/ comment /*/ situation" << std::endl;
+
+    size_t line_cnt = 1;
+    size_t comments_cnt = 0;
+    comment* res = NULL;
+    execute_multiline_comment(const_cast<char *>(line), &line_cnt, &res, &comments_cnt);
+
+    ASSERT_NE(res, nullptr);
+    EXPECT_EQ(line_cnt, 2);
+    EXPECT_EQ(comments_cnt, 1);
+    EXPECT_EQ(res[0].type, multiline);
+    EXPECT_EQ(res[0].line, 1);
+    std::string res_line;
+    for (char* i = res[0].beg; i <= res[0].end; i++)
+        res_line += *i;
+    EXPECT_STREQ(res_line.c_str(), answer);
+    free_res(&res);
+}
+
+TEST(EdgeTest, ShieldingSingleQuotes) {
+    const char line_const [] = "this is a \\'line'";  // this is a \'line'
+    const char answer [] = "this is a \\'line";
+    char* line = (char*)malloc(strlen(line_const) + 1);
+    ASSERT_NE(line, nullptr);
+    strcpy(line, line_const);
+    line[strlen(line_const)] = '\0';
+
+    std::cout << "[ EdgeTest ] | \\' situation" << std::endl;
+
+    size_t line_cnt = 1;
+    char* after_closing_quote = skip_to_single_quote(line, &line_cnt);
+
+    ASSERT_NE(after_closing_quote, nullptr);
+    EXPECT_EQ(line_cnt, 1);
+    std::string res_line;
+    for (char* i = line; i < after_closing_quote - 1; i++)
+        res_line += *i;
+    EXPECT_STREQ(res_line.c_str(), answer);
+    free(line);
+}
+
+TEST(EdgeTest, ShieldingDoubleQuotes) {
+    const char line_const [] = "this is a \\'line\"";  // this is a \'line'
+    const char answer [] = "this is a \\'line";
+    char* line = (char*)malloc(strlen(line_const) + 1);
+    ASSERT_NE(line, nullptr);
+    strcpy(line, line_const);
+    line[strlen(line_const)] = '\0';
+
+    std::cout << "[ EdgeTest ] | \\\" situation" << std::endl;
+
+    size_t line_cnt = 1;
+    char* after_closing_quote = skip_to_double_quote(line, &line_cnt);
+
+    ASSERT_NE(after_closing_quote, nullptr);
+    EXPECT_EQ(line_cnt, 1);
+    std::string res_line;
+    for (char* i = line; i < after_closing_quote - 1; i++)
+        res_line += *i;
+    EXPECT_STREQ(res_line.c_str(), answer);
+    free(line);
+}
+
+int main(int argc, char **argv) {
+    ::testing::InitGoogleTest(&argc, argv);
+    return RUN_ALL_TESTS();
+}
\ No newline at end of file
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