context("Scalar assertions") test_that("is.scalar works correctly", { expect_true(is.scalar(1)) expect_true(is.scalar(-1)) expect_true(is.scalar(1.5)) expect_false(is.scalar(1:5)) expect_true(is.scalar('a')) expect_false(is.scalar(c('a', 'b'))) expect_true(is.scalar(TRUE)) expect_false(is.scalar(c(TRUE, FALSE))) expect_false(is.scalar(NULL)) expect_true(is.scalar(NA)) expect_true(is.scalar(Inf)) expect_true(is.scalar(-Inf)) }) test_that("is.string works correctly", { expect_false(is.string(1)) expect_true(is.string('a')) expect_false(is.string(c('a', 'b'))) expect_false(is.string(TRUE)) expect_false(is.string(NULL)) expect_false(is.string(NA)) expect_false(is.string(Inf)) expect_false(is.string(-Inf)) }) test_that("is.number works correctly", { expect_true(is.number(1)) expect_true(is.number(-1)) expect_true(is.number(1.5)) expect_false(is.number(1:5)) expect_false(is.number('a')) expect_false(is.number(TRUE)) expect_false(is.number(NULL)) expect_false(is.number(NA)) expect_true(is.number(Inf)) expect_true(is.number(-Inf)) }) test_that("is.flag works correctly", { expect_false(is.flag(1)) expect_false(is.flag('a')) expect_true(is.flag(TRUE)) expect_true(is.flag(FALSE)) expect_false(is.flag(c(TRUE, FALSE))) expect_false(is.flag(NULL)) expect_equal(is.flag(NA), is.logical(NA)) # not obvious expect_false(is.flag(Inf)) expect_false(is.flag(-Inf)) }) test_that("is.count works correctly", { expect_true(is.count(1)) expect_false(is.count(-1)) expect_false(is.count(1.5)) expect_false(is.count(1:5)) expect_false(is.count('a')) expect_false(is.count(TRUE)) expect_false(is.count(NULL)) expect_false(is.count(NA)) expect_false(is.count(NA_real_)) expect_false(is.count(NA_integer_)) expect_false(is.count(NaN)) expect_true(is.count(Inf)) expect_false(is.count(-Inf)) expect_false(is.count(1e10 + 0.0001)) expect_false(is.count(1e10 - 0.1)) })
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