tests/testthat/test-utils.R

In editbl: 'DT' Extension for CRUD (Create, Read, Update, Delete) Applications in 'shiny'

# Data.frame with multiple data types
df_typed <- data.frame(
    char = "x",
    num = 1,
    int = 1L,
    date = as.Date('2023-01-01'),
    time = as.POSIXct('2023-01-01 00:00:01', tz = "UTC")              
)

df_char <- data.frame(
    char = "x",
    num = "1",
    int = "1",
    date = "2023-01-01",
    time = '2023-01-01 00:00:01'
)

df_template <- df_typed[0,]



# Actual tests
test_that("coerceColumns works",{   
       result <- coerceColumns(df_template, df_char)     
       expect_equal(
           result,
           df_typed
           )
    })

test_that('coalesce returns first value',{
      result <- coalesce(x = 2, y = 3)
      expect_equal(result,2)
    })

test_that('coalesce skips null',{
      result <- coalesce(x = NULL, y = 3, z = 4)
      expect_equal(result,3)
    })

test_that('coalesce gives NULL when only NULL available',{
      result <- coalesce(x = NULL, y = NULL)
      expect_equal(result,NULL)
    })

test_that('coalesce gives when no parameters available',{
      result <- coalesce()
      expect_equal(result,NULL)
    })

test_that('castForDisplay gives when no parameters available',{
      result <- castForDisplay(df_typed)
      int <- c("int")
      notInt <- setdiff(colnames(df_typed), "int")
      expect_equal(result[,notInt],df_char[,notInt])
      expect_equal(result[,int],df_typed[,int])
    })

test_that("castToTbl works for data.frame",{
      result <- castToTbl(df_typed)
      expect_equal(result, tibble::tibble(
              char = "x",
              num = 1,
              int = 1L,
              date = as.Date("2023-01-01"),
              time = as.POSIXct("2023-01-01 00:00:01", tz = "UTC")
              ))
    })

test_that("castFromTbl can cast to data.frame",{
      result <- castFromTbl(tibble::as_tibble(mtcars), mtcars)
      expect_true(is.data.frame(result))
      expect_equal(colnames(result), colnames(mtcars))
    })

test_that("castFromTbl can cast to data.table",{
      result <- castFromTbl(tibble::as_tibble(mtcars), data.table::as.data.table(mtcars))
      expect_true(data.table::is.data.table(result))
      expect_equal(colnames(result), colnames(mtcars))
    })

test_that("castToTemplate can cast from data.frame to data.table",{
      result <- castToTemplate(x = iris, template = data.table::data.table(iris))
      expect_equal(result, data.table::as.data.table(iris))
    })

test_that("castToTemplate can cast from data.frame to tbl",{
      result <- castToTemplate(x = iris,  template = dplyr::as_tibble(iris))
      expect_equal(result, dplyr::as_tibble(iris))
    })

test_that("castToTemplate can cast from tbl to data.frame",{
      result <- castToTemplate(x = dplyr::as_tibble(iris), template = iris)
      expect_equal(result, iris)
    })

test_that("castToTemplate can cast from data.table to data.frame",{
      result <- castToTemplate(x = data.table::as.data.table(iris), template = iris)
      expect_equal(result, iris)
    })

test_that("castToTemplate can cast from data.table to tbl",{
      result <- castToTemplate(x = data.table::as.data.table(iris), template = dplyr::as_tibble(iris))
      expect_equal(result, dplyr::as_tibble(iris))
    })

test_that("castToTemplate can cast from tbl to data.table",{
      result <- castToTemplate(x = dplyr::as_tibble(iris), template = data.table::as.data.table(iris))
      expect_equal(result, data.table::as.data.table(iris))
    })

test_that("standardizeArgument_colnames returns named character for named integer",{
      result <- standardizeArgument_colnames(c("test" = 1), dplyr::as_tibble(mtcars))
      expect_equal(result, c("test" = "mpg"))
    })

test_that("standardizeArgument_colnames returns named character for unnamed character",{
      result <- standardizeArgument_colnames(c("test"), dplyr::as_tibble(mtcars))
      expect_equal(result, c("test" = "mpg"))
    })

test_that("standardizeArgument_colnames returns named character for named character",{
      result <- standardizeArgument_colnames(c("test" = "mpg"), dplyr::as_tibble(mtcars))
      expect_equal(result, c("test" = "mpg"))
    })

test_that("standardizeArgument_editable TRUE",{
      result <- standardizeArgument_editable(TRUE)
      expect_equal(result, list(target = "cell"))
    })

test_that("standardizeArgument_editable FALSE",{
      result <- standardizeArgument_editable(FALSE, mtcars)
      expect_equal(result, list(target = "cell", disable = list(columns = 1:11)))
    })

test_that("standardizeArgument_editable 'row'",{
      result <- standardizeArgument_editable('row')
      expect_equal(result, list(target = "row"))
    })

test_that("standardizeArgument_editable list",{
      result <- standardizeArgument_editable(list(target = "cell", numeric = 2))
      expect_equal(result, list(target = "cell", numeric = 2))
    })

test_that("standardizeArgument_editable Error",{
      expect_error(standardizeArgument_editable(1))
    })

test_that('overwriteDefaults works',{
      x = c(a = 'a', b = 'b')
      y = c(a='c')
      result <- overwriteDefaults(x,y)
      expect_equal(result, c(a = 'c', b = 'b'))
    })