tests/testthat/test-plot_qqline.R

In grafify: Easy Graphs for Data Visualisation and Linear Models for ANOVA

test_that("Check QQ plots", {
  db1 <- plot_qqline(data_2w_Tdeath, #plotted with grafify
                              PI, Genotype,
                              TextXAngle = 45,
                              ColPal = "muted",
                              ColRev = T) +
    facet_wrap("Time")
  db1
  #test key layers and data file
  expect_equal(db1$data, data_2w_Tdeath)
  expect_s3_class(db1, "gg")
  expect_equal(db1$theme$text$size, 20)
  #match aesthetics in labels
  expect_match(as.character(db1$labels$y), "sample")
  #check text angle is passed on
  if (utils::packageVersion("ggplot2") <= "3.4.2") {
    expect_equal(db1$guides$x$angle, 45)
  } else {
    expect_equal(db1$guides$x$angle, 45)
  }
})


test_that("Check histogram plots", {
  db2 <- plot_histogram(data_2w_Tdeath, #plotted with grafify
                              PI,Genotype, 
                              TextXAngle = 45) +
    facet_wrap("Time")
  db2
  #test key layers and data file
  expect_equal(db2$data, data_2w_Tdeath)
  expect_s3_class(db2, "gg")
  expect_equal(db2$theme$text$size, 20)
  #match aesthetics in labels
  #expect_match(as.character(db2$labels$y), "count")
  #check text angle is passed on
  if (utils::packageVersion("ggplot2") <= "3.4.2") {
    expect_equal(db2$guides$x$angle, 45)
  } else {
    expect_equal(db2$guides$x$angle, 45)
  }
})


test_that("Check density plots", {
  db2 <- plot_density(data_2w_Tdeath, #plotted with grafify
                        PI,Genotype, 
                        TextXAngle = 45) +
    facet_wrap("Time")
  db2
  #test key layers and data file
  expect_equal(db2$data, data_2w_Tdeath)
  expect_s3_class(db2, "gg")
  expect_equal(db2$theme$text$size, 20)
  #match aesthetics in labels
  #expect_match(as.character(db2$labels$y), "count")
  #check text angle is passed on
  if (utils::packageVersion("ggplot2") <= "3.4.2") {
    expect_equal(db2$guides$x$angle, 45)
  } else {
    expect_equal(db2$guides$x$angle, 45)
  }
})