context("Check that integerIndexToDate behaves as expected")

test_that("computed dates match the input indexes; predict_at == 0",
{
	data0 = getData(ts_data="pm10_mesures_H_loc.csv", exo_data="meteo_extra_noNAs.csv",
		input_tz="Europe/Paris",working_tz="Europe/Paris", predict_at=0, limit=200)
	expect_identical( integerIndexToDate(1,data), as.Date("2008-12-10") )
	expect_identical( integerIndexToDate(2,data), as.Date("2008-12-11") )
	expect_identical( integerIndexToDate(11,data), as.Date("2008-12-20") )
	expect_identical( integerIndexToDate(53,data), as.Date("2009-02-01") )
	expect_identical( integerIndexToDate(81,data), as.Date("2009-03-01") )
	expect_identical( integerIndexToDate(172,data), as.Date("2009-05-31") )
})

test_that("computed dates match the input indexes; predict_at > 0",
{
	data7 = getData(ts_data="pm10_mesures_H_loc.csv", exo_data="meteo_extra_noNAs.csv",
		input_tz="Europe/Paris",working_tz="Europe/Paris", predict_at=7, limit=200)
	expect_identical( integerIndexToDate(2,data), as.Date("2008-12-10") )
	expect_identical( integerIndexToDate(3,data), as.Date("2008-12-11") )
	expect_identical( integerIndexToDate(12,data), as.Date("2008-12-20") )
	expect_identical( integerIndexToDate(54,data), as.Date("2009-02-01") )
	expect_identical( integerIndexToDate(82,data), as.Date("2009-03-01") )
	expect_identical( integerIndexToDate(173,data), as.Date("2009-05-31") )
}