tests/testthat/test-sf_linestring.R

In sfheaders: Converts Between R Objects and Simple Feature Objects

context("sf linestring")

test_that("various objects converted to sf_linestring",{

  m <- matrix(1:4, ncol = 2)
  m <- cbind(c(1L,1L), m)
  res <- sfheaders:::rcpp_sf_linestring(m, c(1L,2L), 0L, "", FALSE)
  expect_true( all( attr(res, "class") == c("sf", "data.frame") ) )

  m <- matrix(1:4, ncol = 2)
  res <- sfheaders:::rcpp_sf_linestring(m, c(0L, 1L), NULL, "", TRUE)
  expect_true( all( attr(res, "class") == c("sf", "data.frame") ) )

  m <- matrix(1:9, ncol = 3)
  res <- sfheaders:::rcpp_sf_linestring(m, c(0L, 1L), NULL, "", TRUE)
  expect_true( all( attr(res, "class") == c("sf", "data.frame") ) )

  ## only accepting INT and STRSXP column indexing types
  # m <- matrix(c(1.2,3,4,5), ncol = 2)
  # res <- sfheaders:::rcpp_sf_linestring(m, c(0,1), NULL, "", TRUE)
  # expect_true( all( attr(res, "class") == c("sf", "data.frame") ) )

  m <- matrix(1:4, ncol = 2)
  df <- as.data.frame( m )
  res <- sfheaders:::rcpp_sf_linestring(df, c(0L,1L), NULL, "", TRUE )
  expect_true( all( attr(res, "class") == c("sf", "data.frame") ) )

  m <- matrix(1:4, ncol = 2)
  df <- as.data.frame( m )
  m <- as.matrix( df )
  res <- sfheaders:::rcpp_sf_linestring(df, c("V1","V2"), NULL, "", TRUE)
  expect_true( all( attr(res, "class") == c("sf", "data.frame") ) )

  m <- matrix(c(1.2,3,4,5), ncol = 2)
  df <- as.data.frame( m )
  m <- as.matrix( df )
  res <- sfheaders:::rcpp_sf_linestring(df, c("V1","V2"), NULL, "", TRUE)
  expect_true( all( attr(res, "class") == c("sf", "data.frame") ) )


  m <- matrix(1:4, ncol = 2)
  df <- as.data.frame( m )
  res <- sfheaders:::rcpp_sf_linestring(df, c("V1","V2"), NULL, "", TRUE)
  expect_true( all( attr(res, "class") == c("sf", "data.frame") ) )

  # m <- matrix(1:8, ncol = 2)
  # m <- cbind(m, c(1,1,2,2))
  # res <- sfheaders:::rcpp_sf_linestring(m, c(0,1), 2, "", TRUE)
  # expect_true( all( attr(res, "class") == c("sf", "data.frame") ) )

  m <- matrix(1:8, ncol = 2)
  m <- cbind(m, c(1L,1L,2L,2L))
  res <- sfheaders:::rcpp_sf_linestring(m, c(0L,1L), 2L, "", TRUE)
  expect_true( all( attr(res, "class") == c("sf", "data.frame") ) )

  m <- matrix(1:8, ncol = 2)
  m <- cbind(m, c(1,1,2,2))
  res <- sfheaders:::rcpp_sf_linestring(m, c(0L,1L), 2L, "", TRUE)
  expect_true( all( attr(res, "class") == c("sf", "data.frame") ) )

  m <- matrix(1:2, ncol = 2)
  m <- cbind(m, c(1))
  res <- sfheaders:::rcpp_sf_linestring(m, c(0L,1L), 2L, "", TRUE)
  expect_true( all( attr(res, "class") == c("sf", "data.frame") ) )

  m <- matrix(1:8, ncol = 2)
  m <- cbind(m, c(1,1,2,2))
  df <- as.data.frame( m )
  res <- sfheaders:::rcpp_sf_linestring(df, c(0L,1L), 2L, "", TRUE)
  expect_true( all( attr(res, "class") == c("sf", "data.frame") ) )

  m <- matrix(1:8, ncol = 2)
  m <- cbind(m, c(1L,1L,2L,2L) )
  df <- as.data.frame( m )
  m <- as.matrix( df )
  res <- sfheaders:::rcpp_sf_linestring(m, c("V1","V2"), NULL, "", TRUE)
  expect_true( all( attr(res, "class") == c("sf", "data.frame") ) )

  m <- matrix(1:8, ncol = 2)
  m <- cbind(m, c(1,1,2,2) )
  df <- as.data.frame( m )
  m <- as.matrix( df )
  res <- sfheaders:::rcpp_sf_linestring(m, c("V1","V2"), NULL, "", TRUE)
  expect_true( all( attr(res, "class") == c("sf", "data.frame") ) )

  m <- matrix(c(1.2,2:8), ncol = 2)
  m <- cbind(m, c(1,1,2,2))
  df <- as.data.frame( m )
  res <- sfheaders:::rcpp_sf_linestring(df, c("V1","V2"), NULL, "", TRUE )
  expect_true( all( attr(res, "class") == c("sf", "data.frame") ) )

  m <- matrix(1L:4L, ncol = 2)
  m <- cbind(c(1L,1L), m)
  df <- as.data.frame( m )
  m <- as.matrix( df )
  res <- sfheaders:::rcpp_sf_linestring(m, c("V1","V2"), "V3", "", TRUE)
  expect_true( all( attr(res, "class") == c("sf", "data.frame") ) )

  m <- matrix(1:8, ncol = 2)
  m <- cbind(m, c(1,1,2,2) )
  df <- as.data.frame( m )
  m <- as.matrix( df )
  res <- sfheaders:::rcpp_sf_linestring(m, c("V1","V2"), "V3", "", TRUE )
  expect_true( all( attr(res, "class") == c("sf", "data.frame") ) )

  m <- matrix(c(1.2,2:8), ncol = 2)
  m <- cbind(m, c(1,1,2,2))
  df <- as.data.frame( m )
  res <- sfheaders:::rcpp_sf_linestring(df, c("V1","V2"), "V3", "", TRUE )
  expect_true( all( attr(res, "class") == c("sf", "data.frame") ) )

  m <- matrix(1:8, ncol = 2)
  m <- cbind(m, c(1,1,2,2))
  df <- as.data.frame( m )
  res <- sfheaders:::rcpp_sf_linestring(df, c("V1","V2"), c("V3"), "", TRUE)
  expect_true( all( attr(res, "class") == c("sf", "data.frame") ) )

  m <- matrix(1:2, ncol = 2)
  m <- cbind(m, c(1))
  df <- as.data.frame( m )
  res <- sfheaders:::rcpp_sf_linestring(df, c("V1","V2"), c("V3"), "", TRUE)
  expect_true( all( attr(res, "class") == c("sf", "data.frame") ) )


  m <- matrix(1:2, ncol = 2)
  m <- cbind(m, c(1))
  df <- as.data.frame( m )
  res <- sfheaders:::rcpp_sf_linestring(df, c(0L,1L), 2L, "", TRUE )
  expect_true( all( attr(res, "class") == c("sf", "data.frame") ) )

})


test_that("ineger column indexing works (issue #46)",{

  m <- matrix(1:8, ncol = 2)
  m <- cbind(m, c(1,1,2,2))
  res <- sfheaders:::rcpp_to_sf(obj = m, geometry_columns = c(0L,1L), NULL, 1L, NULL, NULL, NULL, NULL, FALSE, TRUE, "", "LINESTRING")

  res2 <- sfheaders::sf_linestring(m, x = 1, y = 2, linestring_id = 2, keep = T)

  expect_equal( res, res2 )
  expect_true( all( attr(res, "class") == c("sf", "data.frame") ) )
  expect_equal( res$V3, c(1,1,2,2) )
  expect_true( ncol(res) == 3 )

  m <- matrix(1:8, ncol = 2)
  m <- cbind(m, c(1,1,2,2))

  res <- sfheaders:::rcpp_to_sf(obj = m, geometry_columns = c(0L,1L), NULL, 2L, NULL, NULL, NULL, NULL, FALSE, TRUE, "", "LINESTRING")
  expect_true( all( attr(res, "class") == c("sf", "data.frame") ) )
  expect_equal( res$V3, 1:2 )


})