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28
29#include "utils/cmdline/ui_mock.hpp"
30
31#include <iostream>
32
33#include "utils/optional.ipp"
34
35using utils::cmdline::ui_mock;
36using utils::none;
37using utils::optional;
38
39
40/// Constructs a new mock UI.
41///
42/// \param screen_width_ The width of the screen to use for testing purposes.
43///     Defaults to 0 to prevent uncontrolled wrapping on our tests.
44ui_mock::ui_mock(const std::size_t screen_width_) :
45    _screen_width(screen_width_)
46{
47}
48
49
50/// Writes a line to stderr and records it for further inspection.
51///
52/// \param message The line to print and record, without the trailing newline
53///     character.
54/// \param newline Whether to append a newline to the message or not.
55void
56ui_mock::err(const std::string& message, const bool newline)
57{
58    if (newline)
59        std::cerr << message << "\n";
60    else {
61        std::cerr << message << "\n";
62        std::cerr.flush();
63    }
64    _err_log.push_back(message);
65}
66
67
68/// Writes a line to stdout and records it for further inspection.
69///
70/// \param message The line to print and record, without the trailing newline
71///     character.
72/// \param newline Whether to append a newline to the message or not.
73void
74ui_mock::out(const std::string& message, const bool newline)
75{
76    if (newline)
77        std::cout << message << "\n";
78    else {
79        std::cout << message << "\n";
80        std::cout.flush();
81    }
82    _out_log.push_back(message);
83}
84
85
86/// Queries the width of the screen.
87///
88/// \return Always none, as we do not want to depend on line wrapping in our
89/// tests.
90optional< std::size_t >
91ui_mock::screen_width(void) const
92{
93    return _screen_width > 0 ? optional< std::size_t >(_screen_width) : none;
94}
95
96
97/// Gets all the lines written to stderr.
98///
99/// \return The printed lines.
100const std::vector< std::string >&
101ui_mock::err_log(void) const
102{
103    return _err_log;
104}
105
106
107/// Gets all the lines written to stdout.
108///
109/// \return The printed lines.
110const std::vector< std::string >&
111ui_mock::out_log(void) const
112{
113    return _out_log;
114}
115