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| -rw-r--r-- | guides/source/testing.md | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/guides/source/testing.md b/guides/source/testing.md index 655827145c..4f5e3d18ec 100644 --- a/guides/source/testing.md +++ b/guides/source/testing.md @@ -688,9 +688,7 @@ Finished in 0.081972s, 12.1993 runs/s, 48.7972 assertions/s. ### Testing Views -Testing the response to your request by asserting the presence of key HTML elements and their content is a useful way to test the views of your application. The `assert_select` assertion allows you to do this by using a simple yet powerful syntax. - -NOTE: You may find references to `assert_tag` in other documentation. This has been removed in 4.2. Use `assert_select` instead. +Testing the response to your request by asserting the presence of key HTML elements and their content is a common way to test the views of your application. The `assert_select` method allows you to query HTML elements of the response by using a simple yet powerful syntax. There are two forms of `assert_select`: @@ -704,7 +702,10 @@ For example, you could verify the contents on the title element in your response assert_select 'title', "Welcome to Rails Testing Guide" ``` -You can also use nested `assert_select` blocks. In this case the inner `assert_select` runs the assertion on the complete collection of elements selected by the outer `assert_select` block: +You can also use nested `assert_select` blocks for deeper investigation. + +In the following example, the inner `assert_select` for `li.menu_item` runs +within the collection of elements selected by the outer block: ```ruby assert_select 'ul.navigation' do @@ -712,7 +713,9 @@ assert_select 'ul.navigation' do end ``` -Alternatively the collection of elements selected by the outer `assert_select` may be iterated through so that `assert_select` may be called separately for each element. Suppose for example that the response contains two ordered lists, each with four list elements then the following tests will both pass. +A collection of selected elements may be iterated through so that `assert_select` may be called separately for each element. + +For example if the response contains two ordered lists, each with four nested list elements then the following tests will both pass. ```ruby assert_select "ol" do |elements| @@ -726,7 +729,7 @@ assert_select "ol" do end ``` -The `assert_select` assertion is quite powerful. For more advanced usage, refer to its [documentation](https://github.com/rails/rails-dom-testing/blob/master/lib/rails/dom/testing/assertions/selector_assertions.rb). +This assertion is quite powerful. For more advanced usage, refer to its [documentation](http://www.rubydoc.info/github/rails/rails-dom-testing). #### Additional View-Based Assertions |