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
|
# frozen_string_literal: true
require "spec_helper"
describe GraphQL::Language::BlockString do
describe "trimming whitespace" do
def trim_whitespace(str)
GraphQL::Language::BlockString.trim_whitespace(str)
end
it "matches the examples in graphql-js" do
# these are taken from:
# https://github.com/graphql/graphql-js/blob/36ec0e9d34666362ff0e2b2b18edeb98e3c9abee/src/language/__tests__/blockStringValue-test.js#L12
# A set of [before, after] pairs:
examples = [
[
# Removes common whitespace:
"
Hello,
World!
Yours,
GraphQL.
",
"Hello,\n World!\n\nYours,\n GraphQL."
],
[
# Removes leading and trailing newlines:
"
Hello,
World!
Yours,
GraphQL.
",
"Hello,\n World!\n\nYours,\n GraphQL."
],
[
# Removes blank lines (with whitespace _and_ newlines:)
"\n \n
Hello,
World!
Yours,
GraphQL.
\n \n",
"Hello,\n World!\n\nYours,\n GraphQL."
],
[
# Retains indentation from the first line
" Hello,\n World!\n\n Yours,\n GraphQL.",
" Hello,\n World!\n\nYours,\n GraphQL.",
],
[
# Doesn't alter trailing spaces
"\n \n Hello, \n World! \n\n Yours, \n GraphQL. ",
"Hello, \n World! \n\nYours, \n GraphQL. ",
],
[
# Doesn't crash when the string is only a newline
"\n",
""
],
[
# Removes long blank lines
" \n \n
Hello,
World!
Yours,
GraphQL.
\n \n",
"Hello,\n World!\n\nYours,\n GraphQL."
]
]
examples.each_with_index do |(before, after), idx|
transformed_str = trim_whitespace(before)
assert_equal(after, transformed_str, "Example ##{idx + 1}")
end
end
end
end
|
