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local _ = require "mason-core.functional"
describe("functional: number", function()
it("should negate numbers", function()
assert.equals(-42, _.negate(42))
assert.equals(42, _.negate(-42))
end)
it("should check numbers greater than value", function()
local greater_than_life = _.gt(42)
assert.is_false(greater_than_life(0))
assert.is_false(greater_than_life(42))
assert.is_true(greater_than_life(43))
end)
it("should check numbers greater or equal than value", function()
local greater_or_equal_to_life = _.gte(42)
assert.is_false(greater_or_equal_to_life(0))
assert.is_true(greater_or_equal_to_life(42))
assert.is_true(greater_or_equal_to_life(43))
end)
it("should check numbers lower than value", function()
local lesser_than_life = _.lt(42)
assert.is_true(lesser_than_life(0))
assert.is_false(lesser_than_life(42))
assert.is_false(lesser_than_life(43))
end)
it("should check numbers lower or equal than value", function()
local lesser_or_equal_to_life = _.lte(42)
assert.is_true(lesser_or_equal_to_life(0))
assert.is_true(lesser_or_equal_to_life(42))
assert.is_false(lesser_or_equal_to_life(43))
end)
it("should increment numbers", function()
local add_5 = _.inc(5)
assert.equals(0, add_5(-5))
assert.equals(5, add_5(0))
assert.equals(7, add_5(2))
end)
it("should decrement numbers", function()
local subtract_5 = _.dec(5)
assert.equals(5, subtract_5(10))
assert.equals(-5, subtract_5(0))
assert.equals(-3, subtract_5(2))
end)
end)
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