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Testing Hide-Text Mixin Implementation in Bourbon

This test suite validates the hide-text mixin functionality in the Bourbon library, ensuring proper text hiding behavior for CSS styling. The tests verify the correct implementation of overflow, text-indent, and white-space properties for accessible text hiding techniques.

Test Coverage Overview

The test suite focuses on validating the hide-text mixin’s core functionality in Bourbon. It ensures the mixin generates the correct CSS properties for hiding text while maintaining accessibility.

Validates overflow: hidden property
Tests text-indent: 101% implementation
Confirms white-space: nowrap setting
Verifies complete ruleset generation

Implementation Analysis

The testing approach utilizes RSpec’s describe/context/it blocks to organize test cases logically. The implementation leverages ParserSupport for file parsing and custom matchers for CSS ruleset validation.

Uses before(:all) hook for test setup
Implements custom have_ruleset matcher
Employs context-based test organization

Technical Details

Testing Framework: RSpec
Parser Support: Custom ParserSupport module
Test Setup: File-based parsing
Assertion Methods: Custom matchers
File Structure: Library/hide-text specification

Best Practices Demonstrated

The test suite exemplifies clean testing practices with clear separation of concerns and focused test cases. It demonstrates effective use of RSpec’s features for CSS testing.

Single responsibility principle in test cases
Clear test descriptions
Organized test structure
Proper setup isolation

thoughtbot/bourbon

spec/bourbon/library/hide_text_spec.rb

            
require "spec_helper"

describe "hide-text" do
  before(:all) do
    ParserSupport.parse_file("library/hide-text")
  end

  context "called on element" do
    it "adds hide-text" do
      ruleset = "overflow: hidden; " +
                "text-indent: 101%; " +
                "white-space: nowrap;"

      expect(".hide-text").to have_ruleset(ruleset)
    end
  end
end