test_that("doubly constrained tested",{

  ## error datas
  error_dist <- cbind(cppSim::distance_test,1:ncol(cppSim::distance_test))

  error_dist_neg <- cppSim::distance_test
  error_dist_neg[100,150] <- -1

  error_flow_neg <- cppSim::flows_test
  error_flow_neg[543,57] <- -1
  # errors
  testthat::expect_error({
    cppSim::run_model(flows = cppSim::flows_test
                      ,distance = error_dist)
  })

  testthat::expect_error({
    cppSim::run_model(flows = cppSim::flows_test
                      ,distance = cppSim::distance_test
                      ,beta = -1)
  })

  testthat::expect_error({
    cppSim::run_model(flows=cppSim::flows_test
                      ,distance = error_dist_neg#cppSim::distance_test
                      )
  })

  testthat::expect_error({
    cppSim::run_model(flows = error_flow_neg
                      ,distance = cppSim::distance_test
    )
  })


  #### Correct

  testthat::expect_type({

    cppSim::run_model(flows = cppSim::flows_test
                      ,distance = cppSim::distance_test)

  },"list")

})

test_that("singly constrained tested", {

  ## error datas
  error_dist <- cbind(cppSim::distance_test,1:ncol(cppSim::distance_test))

  error_dist_neg <- cppSim::distance_test
  error_dist_neg[100,150] <- -1

  orig_flow <- error_flow_neg <- apply(cppSim::flows_test,FUN = sum,MARGIN = 1)

  error_flow_neg[543] <- -1

  # errors
  # this test works locally, but does not work with checks...
  testthat::expect_error({
    cppSim::run_model_single(flows = c(orig_flow,1,2)
                             ,distance = error_dist)
  })

  testthat::expect_error({
    cppSim::run_model_single(flows = orig_flow
                      ,distance = cppSim::distance_test
                      ,beta = -1)
  })

  testthat::expect_error({
    cppSim::run_model_single(flows = orig_flow
                      ,distance = error_dist_neg #cppSim::distance_test
    )
  })

  testthat::expect_error({
    cppSim::run_model_single(flows = error_flow_neg
                      ,distance = cppSim::distance_test
    )
  })

  #### Correct

  testthat::expect_type({

    cppSim::run_model_single(flows = orig_flow
                             ,distance = cppSim::distance_test)

  },"list")

})