Feature: Sorting BibTeX Bibliographies
  As a scholar who likes to blog
  I want to sort my bibliographies according to configurable parameters

  @tags @sorting
  Scenario: Sort By Year
    Given I have a scholar configuration with:
      | key     | value             |
      | sort_by | year              |
    And I have a "_bibliography" directory
    And I have a file "_bibliography/references.bib":
      """
      @book{ruby1,
        title     = {The Ruby Programming Language},
        author    = {Flanagan, David and Matsumoto, Yukihiro},
        year      = {2008},
        publisher = {O'Reilly Media}
      }
      @book{ruby2,
        title     = {The Ruby Programming Language},
        author    = {Flanagan, David and Matsumoto, Yukihiro},
        year      = {2007},
        publisher = {O'Reilly Media}
      }
      """
    And I have a page "scholar.html":
      """
      ---
      ---
      {% bibliography -f references %}
      """
    When I run jekyll
    Then the _site directory should exist
    And the "_site/scholar.html" file should exist
    Then "2007" should come before "2008" in "_site/scholar.html"

  @tags @sorting
  Scenario: Sort By Year With Nil Values
    Given I have a scholar configuration with:
      | key     | value             |
      | sort_by | year              |
    And I have a "_bibliography" directory
    And I have a file "_bibliography/references.bib":
      """
      @book{ruby1,
        title     = {The Ruby Programming Language},
        author    = {Flanagan, David and Matsumoto, Yukihiro},
        year      = {2008},
        publisher = {O'Reilly Media}
      }
      @book{ruby2,
        title     = {Nil}
      }
      @book{ruby3,
        title     = {The Ruby Programming Language},
        author    = {Flanagan, David and Matsumoto, Yukihiro},
        year      = {2007},
        publisher = {O'Reilly Media}
      }
      """
    And I have a page "scholar.html":
      """
      ---
      ---
      {% bibliography -f references %}
      """
    When I run jekyll
    Then the _site directory should exist
    And the "_site/scholar.html" file should exist
    Then "Nil" should come before "Ruby" in "_site/scholar.html"
    And "2007" should come before "2008" in "_site/scholar.html"

  @tags @sorting
  Scenario: Reverse Sort Order
    Given I have a scholar configuration with:
      | key     | value             |
      | sort_by | year              |
      | order   | descending        |
    And I have a "_bibliography" directory
    And I have a file "_bibliography/references.bib":
      """
      @book{ruby1,
        title     = {The Ruby Programming Language},
        author    = {Flanagan, David and Matsumoto, Yukihiro},
        year      = {2008},
        publisher = {O'Reilly Media}
      }
      @book{ruby2,
        title     = {The Ruby Programming Language},
        author    = {Flanagan, David and Matsumoto, Yukihiro},
        year      = {2007},
        publisher = {O'Reilly Media}
      }
      """
    And I have a page "scholar.html":
      """
      ---
      ---
      {% bibliography -f references %}
      """
    When I run jekyll
    Then the _site directory should exist
    And the "_site/scholar.html" file should exist
    Then "2008" should come before "2007" in "_site/scholar.html"

  @tags @sorting @cited_only
  Scenario: Sort By Year Cited Only
    Given I have a scholar configuration with:
      | key     | value             |
      | sort_by | year              |
    And I have a "_bibliography" directory
    And I have a file "_bibliography/references.bib":
      """
      @book{ruby1,
        title     = {The Ruby Programming Language},
        author    = {Flanagan, David and Matsumoto, Yukihiro},
        year      = {2008},
        publisher = {O'Reilly Media}
      }
      @book{ruby2,
        title     = {Ruby Not Cited},
        author    = {Flanagan, David and Matsumoto, Yukihiro},
        year      = {2007},
        publisher = {O'Reilly Media}
      }
      @book{smalltalk,
        title     = {Smalltalk Best Practice Patterns},
        author    = {Kent Beck},
        year      = {1996},
        publisher = {Prentice Hall}
      }
      """
    And I have a page "scholar.html":
      """
      ---
      ---
      {% cite ruby1 %}
      {% cite smalltalk %}
      {% bibliography --cited %}
      """
    When I run jekyll
    Then the _site directory should exist
    And the "_site/scholar.html" file should exist
    Then "Smalltalk" should come before "Ruby Programming" in "_site/scholar.html"
    And I should not see "<i>Ruby Not Cited</i>" in "_site/scholar.html"

  @tags @sorting @cited_only
  Scenario: Reverse Sort Order Cited Only
    Given I have a scholar configuration with:
      | key     | value             |
      | sort_by | year              |
      | order   | descending        |
    And I have a "_bibliography" directory
    And I have a file "_bibliography/references.bib":
      """
      @book{ruby1,
        title     = {The Ruby Programming Language},
        author    = {Flanagan, David and Matsumoto, Yukihiro},
        year      = {2008},
        publisher = {O'Reilly Media}
      }
      @book{ruby2,
        title     = {Ruby Not Cited},
        author    = {Flanagan, David and Matsumoto, Yukihiro},
        year      = {2007},
        publisher = {O'Reilly Media}
      }
      @book{smalltalk,
        title     = {Smalltalk Best Practice Patterns},
        author    = {Kent Beck},
        year      = {1996},
        publisher = {Prentice Hall}
      }
      """
    And I have a page "scholar.html":
      """
      ---
      ---
      {% cite ruby1 %}
      {% cite smalltalk %}
      {% bibliography --cited %}
      """
    When I run jekyll
    Then the _site directory should exist
    And the "_site/scholar.html" file should exist
    Then "Ruby Programming" should come before "Smalltalk" in "_site/scholar.html"
    And I should not see "<i>Ruby Not Cited</i>" in "_site/scholar.html"

  @tags @sorting @cited_in_order
  Scenario: Sort By Year Cited in Order
    Given I have a scholar configuration with:
      | key     | value             |
      | sort_by | year              |
    And I have a "_bibliography" directory
    And I have a file "_bibliography/references.bib":
      """
      @book{ruby1,
        title     = {The Ruby Programming Language},
        author    = {Flanagan, David and Matsumoto, Yukihiro},
        year      = {2008},
        publisher = {O'Reilly Media}
      }
      @book{ruby2,
        title     = {Ruby Not Cited},
        author    = {Flanagan, David and Matsumoto, Yukihiro},
        year      = {2007},
        publisher = {O'Reilly Media}
      }
      @book{smalltalk,
        title     = {Smalltalk Best Practice Patterns},
        author    = {Kent Beck},
        year      = {1996},
        publisher = {Prentice Hall}
      }
      """
    And I have a page "scholar.html":
      """
      ---
      ---
      {% cite ruby1 %}
      {% cite smalltalk %}
      {% bibliography --cited_in_order %}
      """
    When I run jekyll
    Then the _site directory should exist
    And the "_site/scholar.html" file should exist
    Then "Ruby Programming" should come before "Smalltalk" in "_site/scholar.html"
    And I should not see "<i>Ruby Not Cited</i>" in "_site/scholar.html"

  @tags @sorting
  Scenario: Sort By Year And Month
    Given I have a scholar configuration with:
      | key     | value       |
      | sort_by | year, month |
    And I have a "_bibliography" directory
    And I have a file "_bibliography/references.bib":
      """
      @book{ruby1,
        title     = {December 08},
        year      = {2008},
        month     = dec
      }
      @book{ruby2,
        title     = {March 08},
        year      = {2008},
        month     = mar
      }
      @book{ruby3,
        title     = {August 07},
        year      = {2007},
        month     = aug
      }
      """
    And I have a page "scholar.html":
      """
      ---
      ---
      {% bibliography %}
      """
    When I run jekyll
    Then the _site directory should exist
    And the "_site/scholar.html" file should exist
    Then "August 07" should come before "March 08" in "_site/scholar.html"
    And "March 08" should come before "December 08" in "_site/scholar.html"