LCOV - code coverage report
Current view: top level - tests - catch_file_contents.cpp (source / functions) Hit Total Coverage
Test: coverage.info Lines: 47 47 100.0 %
Date: 2022-02-17 19:51:20 Functions: 3 3 100.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : // Copyright (c) 2018-2022  Made to Order Software Corp.  All Rights Reserved
       2             : //
       3             : // https://snapwebsites.org/project/snapdev
       4             : // contact@m2osw.com
       5             : //
       6             : // This program is free software; you can redistribute it and/or modify
       7             : // it under the terms of the GNU General Public License as published by
       8             : // the Free Software Foundation; either version 2 of the License, or
       9             : // (at your option) any later version.
      10             : //
      11             : // This program is distributed in the hope that it will be useful,
      12             : // but WITHOUT ANY WARRANTY; without even the implied warranty of
      13             : // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      14             : // GNU General Public License for more details.
      15             : //
      16             : // You should have received a copy of the GNU General Public License along
      17             : // with this program; if not, write to the Free Software Foundation, Inc.,
      18             : // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
      19             : 
      20             : /** \file
      21             :  * \brief Verify that the file_contents class works.
      22             :  *
      23             :  * This file implements tests for the file_content class.
      24             :  */
      25             : 
      26             : // self
      27             : //
      28             : #include    <snapdev/file_contents.h>
      29             : 
      30             : #include    "catch_main.h"
      31             : 
      32             : 
      33             : // last include
      34             : //
      35             : #include    <snapdev/poison.h>
      36             : 
      37             : 
      38             : 
      39             : 
      40           6 : CATCH_TEST_CASE("file_contents", "[os]")
      41             : {
      42           8 :     CATCH_START_SECTION("file_contents: write -> read contents")
      43             :     {
      44             :         // try to create file, but directory is missing
      45             :         {
      46           2 :             std::string const content("Open fails in this case\n");
      47           2 :             std::string const filename(SNAP_CATCH2_NAMESPACE::g_tmp_dir() + "/inexcistant-directory/test-file.txt");
      48             : 
      49             :             {
      50           2 :                 snapdev::file_contents content_test_output(filename, false);
      51           1 :                 content_test_output.contents(content);
      52           1 :                 CATCH_REQUIRE_FALSE(content_test_output.write_all());
      53           1 :                 CATCH_REQUIRE(content_test_output.last_error() == "could not open file \""
      54             :                                                                       + filename
      55             :                                                                       + "\" for writing.");
      56             :             }
      57             : 
      58             :             {
      59           2 :                 snapdev::file_contents content_test_input(filename);
      60           1 :                 CATCH_REQUIRE_FALSE(content_test_input.read_all());
      61           1 :                 CATCH_REQUIRE_FALSE(content_test_input.contents() == content);
      62             :             }
      63             :         }
      64             : 
      65             :         // create directory & file
      66             :         {
      67           2 :             std::string const content("We're testing a write...\nand then a read\n");
      68           2 :             std::string const filename(SNAP_CATCH2_NAMESPACE::g_tmp_dir() + "/contents/test-file.txt");
      69             : 
      70             :             {
      71           2 :                 snapdev::file_contents content_test_output(filename, true);
      72           1 :                 content_test_output.contents(content);
      73           1 :                 CATCH_REQUIRE(content_test_output.write_all());
      74             :             }
      75             : 
      76             :             {
      77           2 :                 snapdev::file_contents content_test_input(filename);
      78           1 :                 CATCH_REQUIRE(content_test_input.read_all());
      79           1 :                 CATCH_REQUIRE(static_cast<snapdev::file_contents const &>(content_test_input).contents() == content);
      80             :             }
      81             :         }
      82             : 
      83             :         // check that if the directory exists, it works as expected
      84             :         {
      85           2 :             std::string const content("Try again without the create directory and it still works\n");
      86           2 :             std::string const filename(SNAP_CATCH2_NAMESPACE::g_tmp_dir() + "/contents/dir-exists.txt");
      87             : 
      88             :             {
      89           2 :                 snapdev::file_contents content_test_output(filename, false);
      90           1 :                 content_test_output.contents(content);
      91           1 :                 CATCH_REQUIRE(content_test_output.write_all());
      92             :             }
      93             : 
      94             :             {
      95           2 :                 snapdev::file_contents content_test_input(filename);
      96           1 :                 CATCH_REQUIRE(content_test_input.read_all());
      97           1 :                 CATCH_REQUIRE(content_test_input.contents() == content);
      98             :             }
      99             :         }
     100             : 
     101             :         {
     102           2 :             std::string const filename(SNAP_CATCH2_NAMESPACE::g_tmp_dir() + "/contents/dir-exists.txt/object.java");
     103             : 
     104           1 :             CATCH_REQUIRE_THROWS_MATCHES(
     105             :                       snapdev::file_contents(filename, true, true)
     106             :                     , std::ios::failure
     107             :                     , Catch::Matchers::ExceptionMessage(
     108             :                               "snapdev::file_contents: the full path to filename for a file_contents object could not be created: iostream error"));
     109             :         }
     110             : 
     111             :         // this one tries to delete the "contents" directory and that fails
     112             :         // since it's a directory (and it's not even empty)
     113             :         {
     114           2 :             std::string const filename(SNAP_CATCH2_NAMESPACE::g_tmp_dir() + "/contents");
     115           1 :             snapdev::file_contents content_test_output(filename, false, true);
     116             :         }
     117             :     }
     118             :     CATCH_END_SECTION()
     119             : 
     120           8 :     CATCH_START_SECTION("file_contents: write temporary -> read fails")
     121             :     {
     122           2 :         std::string const content("We're testing a write...\nand then a read but the file is gone!\n");
     123           2 :         std::string const filename(SNAP_CATCH2_NAMESPACE::g_tmp_dir() + "/contents/temporary-file.txt");
     124             : 
     125             :         {
     126           2 :             snapdev::file_contents content_test_output(filename, true, true);
     127           1 :             content_test_output.contents(content);
     128           1 :             CATCH_REQUIRE(content_test_output.write_all());
     129             :         }
     130             : 
     131             :         {
     132           2 :             snapdev::file_contents content_test_input(filename);
     133           1 :             CATCH_REQUIRE_FALSE(content_test_input.read_all());
     134           1 :             CATCH_REQUIRE(content_test_input.contents() == std::string());
     135             :         }
     136             :     }
     137             :     CATCH_END_SECTION()
     138             : 
     139           8 :     CATCH_START_SECTION("file_contents: empty filename is not accepted")
     140             :     {
     141           1 :         CATCH_REQUIRE_THROWS_MATCHES(
     142             :                   snapdev::file_contents(std::string(), true, true)
     143             :                 , std::invalid_argument
     144             :                 , Catch::Matchers::ExceptionMessage(
     145             :                           "snapdev::file_contents: the filename of a file_contents object cannot be the empty string."));
     146             :     }
     147             :     CATCH_END_SECTION()
     148             : 
     149           8 :     CATCH_START_SECTION("file_contents: read from /proc/self/cmd")
     150             :     {
     151           2 :         snapdev::file_contents comm("/proc/self/comm");
     152           1 :         CATCH_REQUIRE(comm.read_all());
     153           1 :         CATCH_REQUIRE(static_cast<snapdev::file_contents const &>(comm).contents() == "unittest\n");
     154             :     }
     155             :     CATCH_END_SECTION()
     156          10 : }
     157             : 
     158             : 
     159             : 
     160             : // vim: ts=4 sw=4 et

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