Add some tests for Countless extra

[refs #108]

docs/extras/countless.md

@@ -25,6 +25,8 @@ In a controller:
 @pagy, @records = pagy_countless(some_scope, ...)
 ```
 
+**Notice**: When using `ActiveRecord`, the `@records` is an `Array`. Onthe other side, the normal `Pagy` returns an `ActiveRelation`.
+
 ## Files
 
 This extra is composed of 1 file:

test/pagy/extras/countless_test.rb

@@ -0,0 +1,88 @@
+require 'byebug'
+require_relative '../../test_helper'
+require 'pagy/extras/countless'
+
+SingleCov.covered!
+
+describe Pagy::Backend do
+
+ let(:backend) { TestController.new }
+
+ let(:last_page) { 1000 / 20 }
+
+ before do
+ @collection = TestCollection.new((1..1000).to_a)
+ end
+
+ describe "#pagy_countless" do
+
+ it 'vars[:size] = [1, 4, 4, 1], on first page only show Next page' do
+ pagy, _ = backend.send(:pagy_countless, @collection, { size: [1, 4, 4, 1], page: 1 })
+ pagy.series.must_equal ['1', 2]
+ pagy.prev.must_be_nil
+ pagy.next.must_equal 2
+ end
+
+ it 'vars[:size] = [1, 4, 4, 1] on 25 page, show one next page and previous pages with :gap' do
+ pagy, _ = backend.send(:pagy_countless, @collection, {page: 25})
+ pagy.series.must_equal [1, :gap, 21, 22, 23, 24, '25', 26]
+ pagy.prev.must_equal 24
+ pagy.next.must_equal 26
+ end
+
+ it 'vars[:size] = [1, 4, 4, 1] on last page show previous pages with :gap' do
+ pagy, _ = backend.send(:pagy_countless, @collection, {page: last_page})
+ pagy.series.must_equal [1, :gap, 46, 47, 48, 49, '50']
+ pagy.prev.must_equal 49
+ pagy.next.must_be_nil
+ end
+
+ it 'vars[:size] = [], on first page, should hide seris' do
+ pagy, _ = backend.send(:pagy_countless, @collection, {size: [], page: 1})
+ pagy.series.must_equal []
+ pagy.prev.must_be_nil
+ pagy.next.must_equal 2
+ end
+
+ it 'vars[:size] = [], in the middle, should hide seris' do
+ pagy, _ = backend.send(:pagy_countless, @collection, {size: [], page: 25})
+ pagy.series.must_equal []
+ pagy.prev.must_equal 24
+ pagy.next.must_equal 26
+ end
+
+ it 'vars[:size] = [], on last page, should hide seris' do
+ pagy, _ = backend.send(:pagy_countless, @collection, {size: [], page: last_page})
+ pagy.series.must_equal []
+ pagy.prev.must_equal 49
+ pagy.next.must_be_nil
+ end
+ end
+
+ describe 'page_param in privete method "pagy_countless_get_vars"' do
+
+ let(:backend) { TestController.new({a: 'a', page: 3, page_number: 4}) }
+
+ it 'page_param from defaults' do
+ Pagy::VARS[:page_param] = :page_number
+ pagy, items = backend.send(:pagy_countless, @collection)
+ pagy.page.must_equal 4
+ items.must_equal Array(61..80)
+ end
+
+ it 'page_param from vars' do
+ Pagy::VARS[:page_param] = :page
+ pagy, items = backend.send(:pagy_countless, @collection, {page_param: :page_number})
+ pagy.page.must_equal 4
+ items.must_equal Array(61..80)
+ end
+
+ it 'bypass page_param with vars[:page]' do
+ Pagy::VARS[:page_param] = :page_number
+ pagy, items = backend.send(:pagy_countless, @collection, {page_param: :page_number, page: 1})
+ pagy.page.must_equal 1
+ items.must_equal Array(1..20)
+ end
+
+ end
+end

test/pagy/extras/items_test.rb

@@ -30,7 +30,7 @@
  backend.params.must_equal params
  pagy, _ = backend.send :pagy, @collection, vars
  pagy.items.must_equal 15
- pagy_countless, _ = backend.send :pagy, @collection, vars
+ pagy_countless, _ = backend.send :pagy_countless, @collection, vars
  pagy_countless.items.must_equal 15
  end
 
@@ -41,7 +41,7 @@
  backend.params.must_equal params
  pagy, _ = backend.send :pagy, @collection, vars
  pagy.items.must_equal 12
- pagy_countless, _ = backend.send :pagy, @collection, vars
+ pagy_countless, _ = backend.send :pagy_countless, @collection, vars
  pagy_countless.items.must_equal 12
  end
 
@@ -52,7 +52,7 @@
  backend.params.must_equal params
  pagy, _ = backend.send :pagy, @collection, vars
  pagy.items.must_equal 21
- pagy_countless, _ = backend.send :pagy, @collection, vars
+ pagy_countless, _ = backend.send :pagy_countless, @collection, vars
  pagy_countless.items.must_equal 21
  end
 
@@ -63,7 +63,7 @@
  backend.params.must_equal params
  pagy, _ = backend.send :pagy, @collection, vars
  pagy.items.must_equal 100
- pagy_countless, _ = backend.send :pagy, @collection, vars
+ pagy_countless, _ = backend.send :pagy_countless, @collection, vars
  pagy_countless.items.must_equal 100
  end
 
@@ -74,7 +74,7 @@
  backend.params.must_equal params
  pagy, _ = backend.send :pagy, @collection, vars
  pagy.items.must_equal 1000
- pagy_countless, _ = backend.send :pagy, @collection, vars
+ pagy_countless, _ = backend.send :pagy_countless, @collection, vars
  pagy_countless.items.must_equal 1000
  end
 
@@ -87,7 +87,7 @@
  backend.params.must_equal params
  pagy, _ = backend.send :pagy, @collection, vars
  pagy.items.must_equal 1000
- pagy_countless, _ = backend.send :pagy, @collection, vars
+ pagy_countless, _ = backend.send :pagy_countless, @collection, vars
  pagy_countless.items.must_equal 1000
  }
  end
@@ -99,7 +99,7 @@
  backend.params.must_equal params
  pagy, _ = backend.send :pagy, @collection, vars
  pagy.items.must_equal 14
- pagy_countless, _ = backend.send :pagy, @collection, vars
+ pagy_countless, _ = backend.send :pagy_countless, @collection, vars
  pagy_countless.items.must_equal 14
  end
 
@@ -112,7 +112,7 @@
  backend.params.must_equal params
  pagy, _ = backend.send :pagy, @collection, vars
  pagy.items.must_equal 15
- pagy_countless, _ = backend.send :pagy, @collection, vars
+ pagy_countless, _ = backend.send :pagy_countless, @collection, vars
  pagy_countless.items.must_equal 15
  }
  end