context("Comparing datasets and variables")

cat1 <- Categories(
    list(id = 1L, name = "B", numeric_value = 1L, missing = FALSE),
    list(id = 2L, name = "C", numeric_value = 2L, missing = FALSE),
    list(id = -1L, name = "No Data", numeric_value = NULL, missing = TRUE)
)
cat2 <- Categories(
    list(id = 1L, name = "Name 1", numeric_value = 3L, missing = FALSE),
    list(id = 2L, name = "B", numeric_value = 4L, missing = FALSE),
    list(id = -1L, name = "No Data", numeric_value = NULL, missing = TRUE)
)

test_that("compareCategories", {
    expect_equivalent(
        compareCategories(cat1, cat2),
        data.frame(
            # numeric_value.A=c(1L, 2L, NA, NA),
            id.A = c(1L, 2L, -1L, NA),
            name = c("B", "C", "No Data", "Name 1"),
            id.B = c(2L, NA, -1L, 1L),
            # numeric_value.B=c(4L, NA, NA, 3L),
            stringsAsFactors = FALSE
        )
    )
})

test_that("summarizeCompareCategories", {
    expect_equal(
        summary(compareCategories(cat1, cat2))$problems,
        list(mismatched.ids = c("B", "C", "Name 1"))
    )
    expect_equal(
        summary(compareCategories(cat1, cat1))$problems,
        list(mismatched.ids = character(0))
    )
})

test_that("print compareCategory summary", {
    expect_prints(
        summary(compareCategories(cat1, cat2)),
        paste(
            "Total categories: 4 ",
            "",
            "Mismatched ids: 3 ",
            " id.A   name id.B",
            "    1      B    2",
            "    2      C   NA",
            "   NA Name 1    1",
            sep = "\n"
        )
    )
})

test_that("print compareCategory summary when categories are equivalent", {
    summary(compareCategories(cat1, cat1))
    expect_prints(
        summary(compareCategories(cat1, cat1)),
        paste(
            "Total categories: 3 ",
            "All good :)",
            sep = "\n"
        )
    )
})

with_mock_crunch({
    ds1 <- cachedLoadDataset("test ds")
    ds2 <- loadDataset("an archived dataset", "archived")

    test_that("compareVariables", {
        expect_equal(
            summarizeCompareVariables(
                compareVariables(allVariables(ds1), allVariables(ds2))
            )$problems,
            list(
                mismatched.type = "birthyr",
                mismatched.name = c("birthyr", "starttime", "birthyr2")
            )
        )
    })

    test_that("print compareVariables", {
        expect_prints(
            summary(compareVariables(allVariables(ds1), allVariables(ds2))),
            paste(
                "Total variables: 9 ",
                "",
                "Type mismatch: 1 ",
                "     name.A  type.A   alias   type.B    name.B",
                " Birth Year numeric birthyr datetime starttime",
                "",
                "Name mismatch: 3 ",
                "     name.A     alias     name.B",
                " Birth Year   birthyr  starttime",
                "  starttime starttime       <NA>",
                "       <NA>  birthyr2 Birth Year",
                sep = "\n"
            )
        )
    })
    test_that("compareVariables when everything is ok", {
        expect_prints(
            summary(compareVariables(allVariables(ds1), allVariables(ds1))),
            paste(
                "Total variables: 7 ",
                "No type or name mismatches.",
                sep = "\n"
            )
        )
    })

    test_that("compareSubvariables", {
        ## Tested below and in test-append-debug.R
    })

    test_that("compareDatasets", {
        compareDatasets(ds1, ds2)
        expect_prints(summary(compareDatasets(ds1, ds2)),
            paste(
                "Total variables: 9 ",
                "",
                "Type mismatch: 1 ",
                "     name.A  type.A   alias   type.B    name.B",
                " Birth Year numeric birthyr datetime starttime",
                "",
                "Name mismatch: 3 ",
                "     name.A     alias     name.B",
                " Birth Year   birthyr  starttime",
                "  starttime starttime       <NA>",
                "       <NA>  birthyr2 Birth Year",
                "",
                "Matched variables with categories: 2 ",
                "With issues: 1 ",
                "",
                "$gender",
                "Total categories: 4 ",
                "",
                "Mismatched ids: 2 ",
                " id.A   name id.B",
                "    2 Female    3",
                "   NA  Other    2",
                "",
                "",
                "Array variables: 3 ",
                "With subvariable issues: 2 ",
                "",
                "$mymrset",
                "Total subvariables: 4 ",
                "",
                "Mismatched names: 2 ",
                " name.A   alias name.B",
                " Second subvar1   <NA>",
                "   <NA> subvar4 Second",
                "",
                "Subvariables in B have multiple parents: mymrset and mymrset2 ",
                "",
                paste0(
                    "Contains subvariables found in other arrays after ",
                    "matching: catarray and mymrset2 "
                ),
                "",
                "$catarray",
                "Total subvariables: 3 ",
                "",
                "Subvariables in B have multiple parents: mymrset and mymrset2 ",
                "",
                "Contains subvariables found in other arrays after matching: mymrset2 ",
                "",
                sep = "\n"
            ),
            fixed = TRUE
        )
    })

    test_that("compareDatasets when everything is ok", {
        expect_prints(
            summary(compareDatasets(ds2, ds2)),
            paste(
                "Total variables: 5 ",
                "All good :)",
                sep = "\n"
            )
        )
    })
})