groovy

  /**
   * Enter: Asking for next, last, first, prev on a GitHub Link header
   * Exit: corresponding value for each link
   */
  @Test
  void getLinkFromHeaderTest(){
    // Prepare
    def gitHubHeader = """Link: <https://api.github.com/search/code?q=addClass+user%3Amozilla&page=15>; rel="next",
<https://api.github.com/search/code?q=addClass+user%3Amozilla&page=34>; rel="last",
<https://api.github.com/search/code?q=addClass+user%3Amozilla&page=1>; rel="first",
<https://api.github.com/search/code?q=addClass+user%3Amozilla&page=13>; rel="prev"
"""
    def linkNameList = [ 
    'next' : 'https://api.github.com/search/code?q=addClass+user%3Amozilla&page=15', 
    'last' : 'https://api.github.com/search/code?q=addClass+user%3Amozilla&page=34', 
    'first': 'https://api.github.com/search/code?q=addClass+user%3Amozilla&page=1',
    'prev' : 'https://api.github.com/search/code?q=addClass+user%3Amozilla&page=13']
    
    // Execute
    // Validate
    linkNameList.each{
      linkName, expected ->
      assert expected == 
            toTest.getLinkFromHeader( linkName,  gitHubHeader)
    }
  }
  
  
  
  
    /**
   * Enter: Asking for next, last, first, prev on a GitHub Link header
   * Exit: corresponding value for each link
   */
  void getLinkFromHeaderTest(){
    given:
        def gitHubHeader = """
          Link: <https://api.github.com/search/code?q=addClass+user%3Amozilla&page=15>; rel="next",
          <https://api.github.com/search/code?q=addClass+user%3Amozilla&page=34>; rel="last",
          <https://api.github.com/search/code?q=addClass+user%3Amozilla&page=1>; rel="first",
          <https://api.github.com/search/code?q=addClass+user%3Amozilla&page=13>; rel="prev"
              """

    expect:
        expectedURL == toTest.getLinkFromHeader( linkName,  gitHubHeader)

    where:
        linkName << [ 'next' , 'last' , 'first', 'prev' ]
        expectedURL << [
        'https://api.github.com/search/code?q=addClass+user%3Amozilla&page=15', 
        'https://api.github.com/search/code?q=addClass+user%3Amozilla&page=34', 
        'https://api.github.com/search/code?q=addClass+user%3Amozilla&page=1',
        'https://api.github.com/search/code?q=addClass+user%3Amozilla&page=13']
  }