
# set-up ===
enumerate <- 0 # to count number of tests performed using iterations in loops
loops <- 0 # to count number of loops
errorfun <- function(tt) {
  
  if(isFALSE(tt)) stop(print(tt))
}

undim <- function(x) {
  dim(x) <- NULL
  return(x)
}

funs <- list(
  bc.b,
  bc.i,
  bc.d,
  bc.cplx,
  bc.str,
  bc.raw,
  bc.bit,
  bc.list
)
funs <- c(funs, funs)
ops1 <- c(
  rep(list("=="), 7L),
  \(x, y) length(x)==length(y)
)
ops2 <- c(
  list("&"), rep(list("+"), 4L), list("pmin", "&"),
  \(x, y) length(x)==length(y)
)
ops <- c(ops1, ops2)

datagens <- list(
  \() sample(c(TRUE, FALSE, NA), 10L, TRUE),
  \() sample(c(-10L:10L, NA_integer_)),
  \() sample(c(rnorm(10), NA, NaN, Inf, -Inf)),
  \() sample(c(rnorm(10), NA, NaN, Inf, -Inf)) + sample(c(rnorm(10), NA, NaN, Inf, -Inf)) * -1i,
  \() sample(c(letters, NA)),
  \() as.raw(sample(0:255, 10)),
  \() as.raw(sample(0:255, 10)),
  \() sample(list(letters, month.abb, 1:10))
)
datagens <- c(datagens, datagens)


# neither named ====

for(i in seq_along(funs)) {
 
  op <- ops[[i]]
  x <- datagens[[i]]()
  y <- datagens[[i]]()
  
  expect_equal(
    funs[[i]](x, y, op) |> names(),
    NULL
  ) |> errorfun()
  expect_equal(
    funs[[i]](y, x, op) |> names(),
    NULL
  ) |> errorfun()
  
  enumerate <- enumerate + 2L

}



# both sides reference same names ====

for(i in seq_along(funs)) {
  op <- ops[[i]]
  
  x <- datagens[[i]]()
  y <- datagens[[i]]()
  nms <- sample(letters, length(x), TRUE)
  names(x) <- nms
  names(y) <- nms
  
  
  expect_equal(
    funs[[i]](x, y, op) |> names(),
    nms
  ) |> errorfun()
  expect_equal(
    funs[[i]](y, x, op) |> names(),
    nms
  ) |> errorfun()
  
  enumerate <- enumerate + 2L

  
}


# both sides have different names ====

for(i in seq_along(funs)) {
  op <- ops[[i]]
  
  x <- datagens[[i]]()
  y <- datagens[[i]]()
  names(x) <- sample(letters, length(x), TRUE)
  names(y) <- sample(letters, length(y), TRUE)
  
  expect_equal(
    funs[[i]](x, y, op) |> names(),
    NULL
  ) |> errorfun()
  expect_equal(
    funs[[i]](y, x, op) |> names(),
    NULL
  ) |> errorfun()
  
  enumerate <- enumerate + 2L

}


# only one of the sides' names should be used ====

for(i in seq_along(funs)) {
  for(iSameLen in c(TRUE, FALSE)) {
    for(iNamed in c(TRUE, FALSE)) {
      op <- ops[[i]]
      x <- datagens[[i]]()
      y <- datagens[[i]]()
      
      if(iSameLen == FALSE) {
        y <- y[1]
      }
      if(iNamed == TRUE) {
        names(y) <- sample(letters, length(y), TRUE)
      }
      if(length(x) == length(y)) {
        names(y) <- NULL
      }
      
      nms <- sample(letters, length(x), TRUE)
      names(x) <- nms
      
      
      expect_equal(
        funs[[i]](x, y, op) |> names(),
        nms
      ) |> errorfun()
      expect_equal(
        funs[[i]](y, x, op) |> names(),
        nms
      ) |> errorfun()
      
      enumerate <- enumerate + 2L
    }
  }
}


