tests/testthat/test-df_to_fasta.R

In rodrigarc/RepertoiR: Scifer: Single-Cell Immunoglobulin Filtering of Sanger Sequences

test_that("output BStringSet", {
    suppressMessages(
        string <- df_to_fasta(
            sequence_name = c("myseq1"),
            sequence_strings = c("AATGTCTG"), save_fasta = FALSE
        )
    )
    expect_s4_class(string, "BStringSet")
})

test_that("different number of names and sequences", {
    suppressMessages(
        expect_warning(df_to_fasta(
            sequence_name = c("myseq1"),
            sequence_strings = c("AATGTCTG", "ATGTCA"), save_fasta = FALSE
        ),
        regexp = "Sequence column has different length of sequences name"
        )
    )
})

test_that("not save fasta files", {
    expect_message(df_to_fasta(
        sequence_name = c("myseq1"),
        sequence_strings = c("AATGTCTG"), save_fasta = FALSE
    ),
    regexp = "Fasta file not saved."
    )
})

test_that("save fasta files", {
    t <- tempdir()
    fs::dir_ls(t) %>% fs::file_delete()
    df_to_fasta(
        sequence_name = c("myseq1"),
        sequence_strings = c("AATGTCTG"),
        output_dir = t,
        file_name = "fasta_test.fasta",
        save_fasta = TRUE
    )
    expect_true(fs::dir_ls(t) %>% length() > 0)
    fs::dir_ls(t) %>% fs::file_delete()
})