tests/testthat/test_read.R

In raymondben/datavolley: Reading and Analyzing DataVolley Scout Files

context("dvw file reader")

test_that("text encoding is guessed correctly", {
    expect_message(dv_read(dv_example_file(1), insert_technical_timeouts=FALSE, verbose=TRUE), "Using text encoding: UTF-8")
    expect_message(dv_read(dv_example_file(2), insert_technical_timeouts=FALSE, verbose=TRUE), "Using text encoding: windows-1250")
})

test_that("file reading handles files with truncated lines", {
    x1 <- dv_read(dv_example_file(1))
    xt <- dv_read(system.file("extdata/testing_truncated.dvw",package="datavolley"))
    expect_equal(nrow(x1$plays), nrow(xt$plays))
})

test_that("supplying edited_meta works", {
    x <- dv_read(dv_example_file(1), insert_technical_timeouts=FALSE)
    edited_meta <- x$meta
    edited_meta$players_h$player_id[1] <- "warglewarglewargle"
    x1 <- dv_read(dv_example_file(1), insert_technical_timeouts=FALSE, edited_meta=edited_meta)
    blah <- all.equal(x, x1)
    ## player 1 is a libero, so expect a difference in meta$players_h and plays$player_id only
    expect_equal(length(blah), 2)
    expect_equal(sum(grepl("Component .meta.: Component .players_h.: Component .player_id.: 1 string mismatch", blah)), 1)
    expect_equal(sum(grepl("Component .plays.: Component .player_id.: 43 string mismatches", blah)), 1)
    ## now change a non-lib player
    edited_meta <- x$meta
    edited_meta$players_h$player_id[13] <- "warglewarglewargle"
    x1 <- dv_read(dv_example_file(1), insert_technical_timeouts=FALSE, edited_meta=edited_meta)
    blah <- all.equal(x, x1)
    ## expect differences in home_player_idxx cols
    expect_equal(length(blah), 8)
    expect_equal(sum(grepl("home_player_id[123456]", blah)), 6)
})

test_that("supplying a preferred date format works", {
    ## first generate a modified example file
    x <- dv_read(dv_example_file(1))
    x$raw <- sub("01/25/2015;;2014/2015", "08/12/2015;;2014/2015", x$raw, fixed = TRUE)
    tf <- tempfile(fileext = ".dvw")
    writeLines(x$raw, tf)
    chk <- dv_read(tf)
    ## the last-generated date in this file is unambiguously mdy, so that will be used unless a date format has been specified
    expect_equal(chk$meta$match$date, lubridate::ymd("2015-08-12")) ## by default
    chk <- dv_read(tf, date_format = "mdy")
    expect_equal(chk$meta$match$date, lubridate::ymd("2015-08-12"))
    chk <- dv_read(tf, date_format = "dmy")
    expect_equal(chk$meta$match$date, lubridate::ymd("2015-12-08"))
    chk <- dv_read(tf, date_format = "ymd")
    ## can't be this format, so it's ignored
    expect_equal(chk$meta$match$date, lubridate::ymd("2015-08-12"))
    unlink(tf)

    ## now with ambiguous last-generated date
    x$raw <- sub("01/25/2015 15.44", "01/10/2015 15.44", x$raw, fixed = TRUE)
    tf <- tempfile(fileext = ".dvw")
    writeLines(x$raw, tf)
    chk <- dv_read(tf)
    expect_equal(chk$meta$match$date, lubridate::ymd("2015-12-08")) ## by default
    chk <- dv_read(tf, date_format = "mdy")
    expect_equal(chk$meta$match$date, lubridate::ymd("2015-08-12"))
    chk <- dv_read(tf, date_format = "dmy")
    expect_equal(chk$meta$match$date, lubridate::ymd("2015-12-08"))
    chk <- dv_read(tf, date_format = "ymd")
    expect_equal(chk$meta$match$date, lubridate::ymd("2015-12-08"))
    unlink(tf)
})

test_that("skill evaluations are guessed correctly", {
    x1 <- dv_read(dv_example_file(1), insert_technical_timeouts = FALSE, skill_evaluation_decode = "guess")
    x2 <- dv_read(dv_example_file(1), insert_technical_timeouts = FALSE, skill_evaluation_decode = "default")
    expect_identical(x1, x2)
})

test_that("summary works as expected", {
    x <- dv_read(dv_example_file(1), insert_technical_timeouts = FALSE)
    xs <- summary(x)
    expect_true(is.list(xs))
    expect_true(setequal(names(xs), c("date", "league", "teams", "set_scores", "duration")))
    pxs <- capture.output(print(xs))
    expect_true(is.character(pxs))
    expect_equal(length(pxs), 8L)

    xs <- dvlist_summary(list(x, x))
    expect_true(setequal(names(xs), c("number_of_matches", "number_of_sets", "date_range", "ladder")))
    expect_equal(xs$number_of_matches, 2L)
})


test_that("various utils work", {
    x <- dv_read(dv_example_file(1), insert_technical_timeouts = FALSE)
    expect_identical(plays(x), x$plays)
    expect_error(plays(x$plays), "no plays component")
    expect_error(plays(list()), "no plays component")

    px <- plays(x)
    px$team[1] <- "blah"
    expect_false(isTRUE(all.equal(plays(x), px)))
    plays(x) <- px
    expect_equal(plays(x), px)

    wo <- getOption("width")
    options(width = 1000L)
    xi <- capture.output(inspect(head(plays(x))))
    expect_true(is.character(xi))
    expect_true(setequal(Filter(nzchar, strsplit(xi[1], "[[:space:]]+")[[1]]), c("time", "code", "team", "player_number", "player_name", "skill", "skill_type", "evaluation")))
    xi <- capture.output(inspect(head(plays(x)), extra = "video_time"))
    expect_true(setequal(Filter(nzchar, strsplit(xi[1], "[[:space:]]+")[[1]]), c("time", "code", "team", "player_number", "player_name", "skill", "skill_type", "evaluation", "video_time")))
    xi <- capture.output(inspect(head(plays(x)), extra = "blah")) ## non-existent column
    expect_true(setequal(Filter(nzchar, strsplit(xi[1], "[[:space:]]+")[[1]]), c("time", "code", "team", "player_number", "player_name", "skill", "skill_type", "evaluation")))    
    options(width = wo)
})

test_that("internal reader utils work", {
    x <- dv_read(dv_example_file(1), insert_technical_timeouts = FALSE)
    ws <- x$meta$winning_symbols
    expect_identical(ws, datavolley:::winning_symbols_df(datavolley:::winning_symbols_df2txt(ws)))
    expect_error(datavolley:::winning_symbols_df("blah"))
})

test_that("vsm reader works", {
    x <- dv_read(dv_example_file(3), insert_technical_timeouts = FALSE)
})