96 lines
2.8 KiB
Elixir
96 lines
2.8 KiB
Elixir
defmodule PinchflatWeb.Helpers.PaginationHelpersTest do
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use Pinchflat.DataCase
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import Pinchflat.SourcesFixtures
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alias Pinchflat.Sources.Source
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alias PinchflatWeb.Helpers.PaginationHelpers
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describe "get_pagination_attributes/3" do
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test "returns the correct pagination attributes" do
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source_fixture()
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query = from(s in Source, select: s.id)
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page = 1
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records_per_page = 10
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pagination_attributes = PaginationHelpers.get_pagination_attributes(query, page, records_per_page)
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assert pagination_attributes.page == 1
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assert pagination_attributes.total_pages == 1
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assert pagination_attributes.total_record_count == 1
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assert pagination_attributes.limit == 10
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assert pagination_attributes.offset == 0
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end
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test "returns the correct pagination attributes when there are multiple pages" do
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source_fixture()
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source_fixture()
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query = from(s in Source, select: s.id)
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page = 1
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records_per_page = 1
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pagination_attributes = PaginationHelpers.get_pagination_attributes(query, page, records_per_page)
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assert pagination_attributes.page == 1
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assert pagination_attributes.total_pages == 2
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assert pagination_attributes.total_record_count == 2
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assert pagination_attributes.limit == 1
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assert pagination_attributes.offset == 0
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end
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test "returns the correct attributes when on a page other than the first" do
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source_fixture()
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source_fixture()
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query = from(s in Source, select: s.id)
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page = 2
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records_per_page = 1
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pagination_attributes = PaginationHelpers.get_pagination_attributes(query, page, records_per_page)
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assert pagination_attributes.page == 2
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assert pagination_attributes.total_pages == 2
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assert pagination_attributes.total_record_count == 2
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assert pagination_attributes.limit == 1
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assert pagination_attributes.offset == 1
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end
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end
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describe "update_page_number/3" do
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test "increments the page number" do
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current_page = 1
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total_pages = 2
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updated_page = PaginationHelpers.update_page_number(current_page, :inc, total_pages)
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assert updated_page == 2
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end
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test "decrements the page number" do
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current_page = 2
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total_pages = 2
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updated_page = PaginationHelpers.update_page_number(current_page, :dec, total_pages)
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assert updated_page == 1
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end
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test "doesn't overflow the page number" do
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current_page = 2
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total_pages = 2
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updated_page = PaginationHelpers.update_page_number(current_page, :inc, total_pages)
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assert updated_page == 2
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end
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test "doesn't underflow the page number" do
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current_page = 1
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total_pages = 2
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updated_page = PaginationHelpers.update_page_number(current_page, :dec, total_pages)
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assert updated_page == 1
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end
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end
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end
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