summaryrefslogtreecommitdiff
path: root/test/couch_config_writer_test.erl
blob: 39666f5dced98404bcc01e79d7aa08318f0f93c4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
% couch_config_writer module test suote

% Set up test suite
% ?MODULE_test() returns a list of functions 
% that run the actual tests.
% todo, fix replace_existing_variable2 (i.e. reordering)
couch_config_writer_test() ->
    [
        fun() -> replace_existing_variable() end,
        fun() -> replace_existing_variable2() end,
        fun() -> replace_existing_variable3() end,
        fun() -> append_new_variable() end,
        fun() -> append_new_module() end,
        fun() -> overwrite_variable_further_down() end
    ].


% test functions
replace_existing_variable() ->
    % create file
    Contents = "[section]
variable = value

[another section]
another_var = another_value
",

    Expect = "[section]
variable = new_value

[another section]
another_var = another_value
",
    run_operation_and_compare_results(Contents, Expect, {{"section", "variable"}, "new_value"}).

replace_existing_variable2() ->
    % create file
    Contents = "[section]
variable = value
variable2 = value2
variable3 = value3
variable4 = value4

[another_section]
another_var = another_value
",

    Expect = "[section]
variable = value
variable2 = value2
variable3 = new_value3
variable4 = value4

[another_section]
another_var = another_value
",
    run_operation_and_compare_results(Contents, Expect, {{"section", "variable3"}, "new_value3"}).

replace_existing_variable3() ->
    % create file
    Contents = "[first_section]
var=val

[section]
variable = value
variable2 = value2
variable3 = value3
variable4 = value4

[another_section]
another_var = another_value
",

    Expect = "[first_section]
var=val

[section]
variable = value
variable2 = value2
variable3 = new_value3
variable4 = value4

[another_section]
another_var = another_value
",
    run_operation_and_compare_results(Contents, Expect, {{"section", "variable3"}, "new_value3"}).

append_new_variable() ->
    % create file
    Contents = "[section]
variable = value
variable2 = value

[another_section]
another_var = another_value
",

    Expect = "[section]
variable = value
variable2 = value

fantasy_variable = Citation Needed

[another_section]
another_var = another_value
",
    run_operation_and_compare_results(Contents, Expect, {{"section", "fantasy_variable"}, "Citation Needed"}).


append_new_module() ->
    % create file
    Contents = "[section]
variable = value

[another_section]
another_var = another_value
",

    Expect = "[section]
variable = value

[another_section]
another_var = another_value

[one_more_section]
favourite_food = cupcakes
",
    run_operation_and_compare_results(Contents, Expect, [{{"one_more_section", "favourite_food"}, "cupcakes"}]).

overwrite_variable_further_down() ->
    % create file
    Contents = "[section]
variable = value

[another_section]
another_var = another_value
",

    Expect = "[section]
variable = value

[another_section]
another_var = another_value

[erlang]
option = value

option2 = value2
",
    run_operation_and_compare_results(Contents, Expect, [{{"erlang", "option"}, "value"}, {{"erlang", "option2"}, "value2"}]).


run_operation_and_compare_results(Contents, Expect, Config) when not is_list(Config) ->
    run_operation_and_compare_results(Contents, Expect, [Config]);
run_operation_and_compare_results(Contents, Expect, Config) ->
    Filename = "local.ini",
    file:write_file(Filename, Contents),

    % call replace function
    [couch_config_writer:save_to_file(ConfigVar, Filename) || ConfigVar <- Config],
    
    % compare new file with expected file
    {ok, Result_} = file:read_file(Filename),
    Result = binary_to_list(Result_),

    % clean up
    % file:delete(Filename),
    
    Result = Expect.