library(tidyverse)
library(openxlsx)

# sample grid should be read in correctly

test_that("Sylvia's grid is read and processed correctly", {
  file <- system.file("extdata", "sylvia.xlsx", package = "OpenRepGrid.ic")
  x <- read.xlsx(file)
  tests <- check_excel_input(x) # check if input format is correct

  expect_true(all(tests$passed)) # all format tests have been passed

  l <- network_graph_images(x, min_clique_size = 3, show_edges = TRUE, min_matches = 6)
  cl <- l$cliques_list %>% lapply(sort)

  expect_equal(length(cl), 3) # three cliques identified
  expect_identical(cl[[1]], c("C10", "C11", "C3", "C8")) # constructs in first clique
  expect_identical(cl[[2]], c("C10", "C11", "C7", "C8"))
  expect_identical(cl[[3]], c("C16", "C3", "C5", "C9"))
})


# errors are thrown if Excel input format is incorrect

test_that("input file format is checked correctly", {
  file <- system.file("extdata", "incorrect_formats.xlsx", package = "OpenRepGrid.ic")

  x <- read.xlsx(file, sheet = "format-01")
  tests <- check_excel_input(x)
  expect_false(all(tests$passed))

  x <- read.xlsx(file, sheet = "format-02")
  tests <- check_excel_input(x)
  expect_false(all(tests$passed))

  x <- read.xlsx(file, sheet = "format-03")
  tests <- check_excel_input(x)
  expect_false(all(tests$passed))

  x <- read.xlsx(file, sheet = "format-04")
  tests <- check_excel_input(x)
  expect_false(all(tests$passed))

  suppressWarnings({ # suppress read.xlsx empty sheet warning
    x <- read.xlsx(file, sheet = "format-empty")
  })
  tests <- check_excel_input(x)
  expect_false(all(tests$passed))
})


test_that("Excel output file gets created", {
  file <- system.file("extdata", "sylvia.xlsx", package = "OpenRepGrid.ic")
  x <- openxlsx::read.xlsx(file)
  l <- network_graph_images(x, min_clique_size = 3, show_edges = TRUE, min_matches = 6)
  file_tmp <- create_excel_output(file, l)
  expect_true(file.exists(file_tmp))
})