Nothing
library(testit)
assert('is_blank() tests if a vector is blank', {
(is_blank(''))
(is_blank(NULL) %==% logical(0))
(is_blank(c('', ' ', '\n', '\t')))
(!is_blank('abc'))
(is_blank(c('', 'abc')) %==% c(TRUE, FALSE))
})
assert('n2w converts numbers to words', {
(n2w(0) %==% 'zero')
# cap capitalizes the first letter
(n2w(0, cap = TRUE) %==% 'Zero')
# hyphen adds '-' for 21-99 (except 30, 40, ...)
(n2w(21, cap = TRUE, hyphen = TRUE) %==% 'Twenty-one')
(n2w(21, cap = TRUE, hyphen = FALSE) %==% 'Twenty one')
# x can be negative integers
(n2w(-21, cap = TRUE, hyphen = TRUE) %==% 'Minus twenty-one')
(n2w(-21, cap = TRUE, hyphen = FALSE) %==% 'Minus twenty one')
# and controls whether to have 'add' between hundreds and double digits
(n2w(121, and = FALSE) %==% 'one hundred twenty-one')
(n2w(121, and = TRUE) %==% 'one hundred and twenty-one')
# x can be a vector with length > 1
(n2w(c(10, 13, 99, 1e6)) %==% c('ten', 'thirteen', 'ninety-nine', 'one million'))
# the number should be less than 1e15
(has_error(n2w(1e15)))
})
assert('split_lines() splits a character vector into lines', {
(split_lines('a') %==% 'a')
(split_lines('') %==% '')
(split_lines(NULL) %==% NULL)
(split_lines('a\n') %==% c('a', ''))
(split_lines(c('a', 'b\nc')) %==% c('a', 'b', 'c'))
(split_lines(c('', '\n')) %==% c('', '', ''))
(split_lines('a\nb') %==% c('a', 'b'))
(split_lines('a\nb\n\n') %==% c('a', 'b', '', ''))
(split_lines(c('a\nb', '', ' ', 'c')) %==% c('a', 'b', '', ' ', 'c'))
})
assert('split_source() puts lines of the same expression into a list element', {
(split_source('1+1') %==% list('1+1'))
(split_source(c('1+1+', '1')) %==% list(c('1+1+', '1')))
(split_source(c('1+1+', '1', 'TRUE')) %==% list(c('1+1+', '1'), 'TRUE'))
})
assert('split_source() should signal an error for incomplete code', {
(has_error(split_source('1+1+')))
(has_error(split_source(c('1+1', '1+1+'))))
})
assert('valid_syntax() tells if a code fragment is syntactically valid', {
(valid_syntax('1+1'))
(!valid_syntax('1+1+'))
(valid_syntax('if(TRUE)1'))
(!valid_syntax(c('if(T){', 'F')))
(valid_syntax(c('if(T){', 'F}')))
})
assert('alnum_id() generates ID strings', {
x = c('Hello world 123!', 'a &b*^##c 456')
(alnum_id(x) %==% c('hello-world-123', 'a-b-c-456'))
(alnum_id(x, '[^[:alpha:]]+') %==% c('hello-world', 'a-b-c'))
})
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