Nothing
library(effectR)
fasta.file <- system.file("extdata", "test_infestans.fasta", package = 'effectR')
ORF <- seqinr::read.fasta(fasta.file)
REGEX <- regex.search(sequence = ORF, motif = "RxLR")
REGEX.seq <- lapply(REGEX, function (x) paste(unlist(x),collapse = ""))
num.hits <- grep(REGEX.seq, pattern="^\\w{12,60}r\\wlr\\w{6,10}eer", perl = T,ignore.case = T)
get_mafft_path <- function(mafft.path = NULL, error = TRUE,
verbose = FALSE) {
# Set default path
if (is.null(mafft.path)) {
path <- unname(Sys.which("mafft"))
} else if (endsWith(mafft.path, "mafft")) {
path <- mafft.path
} else if (Sys.info()[['sysname']] %in% "Windows") {
path <- file.path(mafft.path,"mafft.bat")
} else {
# add on executable to path if not already present
path <- file.path(mafft.path, "mafft")
}
# Check if mafft is installed
is_installed <- file.exists(path) == T
if (! is_installed && error) {
if (is.null(mafft.path)) {
stop(paste0("MAFFT not found in your computer's search path.",
"'\n Please check that MAFFT is installed and in the search path or specify the path to the MAFFT installation using the `mafft.path` option."), call. = FALSE)
} else {
stop(paste0("MAFFT not found in the specified path: '", path,
"'\n Please check your MAFFT installation."), call. = FALSE)
}
}
return(path)
}
get_hmmer_path <- function(command="hmmsearch", hmmer.path = NULL, error = TRUE,
verbose = FALSE) {
# Set default path
if (is.null(hmmer.path)) {
path <- unname(Sys.which(command))
} else {
path <- file.path(hmmer.path, command)
}
# Print progress
if (verbose) {
message(paste0("Checking if HMMER is installed in the specified path: '", path,"'"))
}
# Check if mafft is installed
is_installed <- system2(path, "-h", stderr = NULL, stdout = NULL) == 0
if (! is_installed && error) {
if (is.null(hmmer.path)) {
stop(paste0("HMMER not found in your computer's search path.",
"'\n Please check that HMMER is installed and in the search path or specify the path to the HMMER installation using the `hmm.path` option."), call. = FALSE)
} else {
stop(paste0("HMMER not found in the specified path: '", path,
"'\n Please check your HMMER installation."), call. = FALSE)
}
}
return(path)
}
test.mafft <- try(get_mafft_path(), silent = T)
test.hmmer <- try(get_hmmer_path(), silent = T)
context("Generating RxLR candidates from HMM")
test_that("effectR can read FASTA alignment correctly ", {
expect_equal(class(ORF), "list")
expect_equal(class(ORF[[1]]), "SeqFastadna")
expect_equal(length(ORF), 28)
})
if (class(test.mafft) != "try-error" || class(test.hmmer) != "try-error"){
test_that("candidate.rxlr returns a list with 3 objects, 17 REGEX, 19 HMM and 19 rows in HMM table ", {
skip_on_cran()
candidate.rxlr <- hmm.search(original.seq = fasta.file, regex.seq = REGEX, seed = 1)
expect_equal(length(candidate.rxlr), 3)
expect_equal(class(candidate.rxlr), "list")
expect_equal(names(candidate.rxlr), c("REGEX","HMM","HMM_Table"))
expect_equal(length(candidate.rxlr$REGEX), 15)
expect_equal(length(candidate.rxlr$HMM), 17)
})
test_that("Invalid dependency paths cause understandable errors ", {
skip_on_cran()
expect_error(hmm.search(original.seq = fasta.file, regex.seq = REGEX, seed = 1,
mafft.path = "This is not right..."),
"MAFFT not found in the specified path")
expect_error(hmm.search(original.seq = fasta.file, regex.seq = REGEX, seed = 1,
hmm.path = "/something/very/misguided"),
"HMMER not found in the specified path")
})
}
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