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
|
.sourcetools <- new.env(parent = emptyenv())
.sourcetools$gctorture <- TRUE
with_gctorture <- function(expr) {
gctorture(.sourcetools$gctorture)
result <- expr
gctorture(FALSE)
result
}
check_parse <- function(R, S = R) {
lhs <- base::parse(text = R, keep.source = FALSE)
rhs <- with_gctorture(parse_string(S))
check_parse_impl(lhs, rhs)
}
check_parse_impl <- function(lhs, rhs) {
lhsType <- typeof(lhs)
rhsType <- typeof(rhs)
onError <- function(format, ...) {
message <- c(
sprintf(format, ...),
sprintf("R: '%s'", deparse(lhs)),
sprintf("S: '%s'", deparse(rhs))
)
stop(paste(message, collapse = "\n"), call. = FALSE)
}
if (lhsType != rhsType)
onError("TypeError: '%s' != '%s'", lhsType, rhsType)
if (length(lhs) != length(rhs))
onError("LengthError: %s != %s", length(lhs), length(rhs))
if (is.call(lhs) || is.expression(lhs)) {
lapply(seq_along(lhs), function(i) {
check_parse_impl(lhs[[i]], rhs[[i]])
})
}
if (!identical(lhs, rhs))
onError("IdenticalError: '%s' != '%s'", lhs, rhs)
TRUE
}
expect_parse <- function(R, S = R) {
testthat::expect_true(check_parse(R, S))
}
search_objects <- function() {
lapply(seq_along(search()), function(i) {
ls(pos = i, all.names = TRUE)
})
}
|
