tests/testthat/test_write.R

In raymondben/datavolley: Reading and Analyzing DataVolley Scout Files

context("dvw file writer")

test_that("dv_write behaves", {
    expect_dvws_equal <- function(dvw1, dvw2) {
        ## dvw2 should be identical to dvw1 except for some known differences
        ## fix the things that we know will be different
        if (!any(dvw1$raw %eq% "[3VIDEO]")) {
            ## dvw2 will have an (empty) [3VIDEO] section inserted if dvw1 did not have one
            vididx <- which(dvw2$raw %eq% "[3VIDEO]")
            dvw2$raw <- dvw2$raw[-vididx]
            ## that doesn't really matter but the file line numbers will be off by one because of it
            dvw2$plays$file_line_number[which(dvw2$plays$file_line_number >= vididx)] <- dvw2$plays$file_line_number[which(dvw2$plays$file_line_number >= vididx)]-1L
            dvw2$messages$file_line_number[which(dvw2$messages$file_line_number >= vididx)] <- dvw2$messages$file_line_number[which(dvw2$messages$file_line_number >= vididx)]-1L
        }
        if (TRUE) {
            ## don't compare raw yet
            dvw1$raw <- NULL
            dvw2$raw <- NULL
            ## and raw content appears here too
            dvw1$messages$file_line <- NULL
            dvw2$messages$file_line <- NULL
        } else {
            ## drop trailing empty line in dvw1 if it exists
            if (!nzchar(dvw1$raw[length(dvw1$raw)])) dvw1$raw <- dvw1$raw[-length(dvw1$raw)]
        }
        dvw1$file_meta$preferred_date_format <- dvw2$file_meta$preferred_date_format <- NULL
        dvw2$file_meta$lastchange_day <- dvw1$file_meta$lastchange_day
        dvw2$file_meta$lastchange_idp <- dvw1$file_meta$lastchange_idp
        dvw2$file_meta$lastchange_prg <- dvw1$file_meta$lastchange_prg
        dvw2$file_meta$lastchange_rel <- dvw1$file_meta$lastchange_rel
        dvw2$file_meta$lastchange_ver <- dvw1$file_meta$lastchange_ver
        dvw2$file_meta$lastchange_nam <- dvw1$file_meta$lastchange_nam

        dvw1$meta$match$text_encoding <- NA_character_
        dvw2$meta$match$text_encoding <- NA_character_

        dvw2$meta$filename <- dvw1$meta$filename
        print(all.equal(dvw1, dvw2))
        expect_equal(dvw1, dvw2)
    }
    test_read_write_dvw <- function(filename) {
        ## read a file
        x0 <- dv_read(filename)
        ## inject some extra bits for the purposes of testing
        x0$meta$more$spectators <- 99L
        x0$meta$more$receipts <- 123L
        x0$meta$match$home_away <- "Home"
        x0$meta$match$day_number <- 11L
        x0$meta$match$match_number <- 22L
        ## write it
        outfile <- tempfile(fileext = ".dvw")
        dv_write(x0, file = outfile)
        ## read the one we just wrote
        x1 <- dv_read(outfile)
        ## modify the match_id, they will be different because we changed bits that are used in the hash calculation
        x0$meta$match_id <- x1$meta$match_id
        x0$plays$match_id <- x0$meta$match_id
        expect_dvws_equal(x0, x1)
    }
    test_read_write_dvw(dv_example_file(1))
    expect_warning(test_read_write_dvw(dv_example_file(2)))
    ## not testing specific contents of warnings here (but expect "missing the meta\\$(attacks|sets) component")
})