// META: global=window,worker
// META: title=HTTP Cache - Vary
// META: timeout=long
// META: script=/common/utils.js
// META: script=/common/get-host-info.sub.js
// META: script=http-cache.js

var tests = [
  {
    name: "HTTP cache reuses Vary response when request matches",
    requests: [
      {
        request_headers: [
          ["Foo", "1"]
        ],
        response_headers: [
          ["Expires", 5000],
          ["Last-Modified", -3000],
          ["Vary", "Foo"]
        ]
      },
      {
        request_headers: [
          ["Foo", "1"]
        ],
        expected_type: "cached"
      }
    ]
  },
  {
    name: "HTTP cache doesn't use Vary response when request doesn't match",
    requests: [
      {
        request_headers: [
          ["Foo", "1"]
        ],
        response_headers: [
          ["Expires", 5000],
          ["Last-Modified", -3000],
          ["Vary", "Foo"]
        ]
      },
      {
        request_headers: [
          ["Foo", "2"]
        ],
        expected_type: "not_cached"
      }
    ]
  },
  {
    name: "HTTP cache doesn't use Vary response when request omits variant header",
    requests: [
      {
        request_headers: [
          ["Foo", "1"]
        ],
        response_headers: [
          ["Expires", 5000],
          ["Last-Modified", -3000],
          ["Vary", "Foo"]
        ]
      },
      {
        expected_type: "not_cached"
      }
    ]
  },
  {
    name: "HTTP cache doesn't invalidate existing Vary response",
    requests: [
      {
        request_headers: [
          ["Foo", "1"]
        ],
        response_headers: [
          ["Expires", 5000],
          ["Last-Modified", -3000],
          ["Vary", "Foo"]
        ],
        response_body: http_content('foo_1')
      },
      {
        request_headers: [
          ["Foo", "2"]
        ],
        response_headers: [
          ["Expires", 5000],
          ["Last-Modified", -3000],
          ["Vary", "Foo"]
        ],
        expected_type: "not_cached",
        response_body: http_content('foo_2'),
      },
      {
        request_headers: [
          ["Foo", "1"]
        ],
        response_body: http_content('foo_1'),
        expected_type: "cached"
      }
    ]
  },
  {
    name: "HTTP cache doesn't pay attention to headers not listed in Vary",
    requests: [
      {
        request_headers: [
          ["Foo", "1"],
          ["Other", "2"]
        ],
        response_headers: [
          ["Expires", 5000],
          ["Last-Modified", -3000],
          ["Vary", "Foo"]
        ],
      },
      {
        request_headers: [
          ["Foo", "1"],
          ["Other", "3"]
        ],
        expected_type: "cached"
      }
    ]
  },
  {
    name: "HTTP cache reuses two-way Vary response when request matches",
    requests: [
      {
        request_headers: [
          ["Foo", "1"],
          ["Bar", "abc"]
        ],
        response_headers: [
          ["Expires", 5000],
          ["Last-Modified", -3000],
          ["Vary", "Foo, Bar"]
        ]
      },
      {
        request_headers: [
          ["Foo", "1"],
          ["Bar", "abc"]
        ],
        expected_type: "cached"
      }
    ]
  },
  {
    name: "HTTP cache doesn't use two-way Vary response when request doesn't match",
    requests: [
      {
        request_headers: [
          ["Foo", "1"],
          ["Bar", "abc"]
        ],
        response_headers: [
          ["Expires", 5000],
          ["Last-Modified", -3000],
          ["Vary", "Foo, Bar"]
        ]
      },
      {
        request_headers: [
          ["Foo", "2"],
          ["Bar", "abc"]
        ],
        expected_type: "not_cached"
      }
    ]
  },
  {
    name: "HTTP cache doesn't use two-way Vary response when request omits variant header",
    requests: [
      {
        request_headers: [
          ["Foo", "1"]
        ],
        response_headers: [
          ["Expires", 5000],
          ["Last-Modified", -3000],
          ["Vary", "Foo, Bar"]
        ]
      },
      {
        expected_type: "not_cached"
      }
    ]
  },
  {
    name: "HTTP cache reuses three-way Vary response when request matches",
    requests: [
      {
        request_headers: [
          ["Foo", "1"],
          ["Bar", "abc"],
          ["Baz", "789"]
        ],
        response_headers: [
          ["Expires", 5000],
          ["Last-Modified", -3000],
          ["Vary", "Foo, Bar, Baz"]
        ]
      },
      {
        request_headers: [
          ["Foo", "1"],
          ["Bar", "abc"],
          ["Baz", "789"]
        ],
        expected_type: "cached"
      }
    ]
  },
  {
    name: "HTTP cache doesn't use three-way Vary response when request doesn't match",
    requests: [
      {
        request_headers: [
          ["Foo", "1"],
          ["Bar", "abc"],
          ["Baz", "789"]
        ],
        response_headers: [
          ["Expires", 5000],
          ["Last-Modified", -3000],
          ["Vary", "Foo, Bar, Baz"]
        ]
      },
      {
        request_headers: [
          ["Foo", "2"],
          ["Bar", "abc"],
          ["Baz", "789"]
        ],
        expected_type: "not_cached"
      }
    ]
  },
  {
    name: "HTTP cache doesn't use three-way Vary response when request doesn't match, regardless of header order",
    requests: [
      {
        request_headers: [
          ["Foo", "1"],
          ["Bar", "abc4"],
          ["Baz", "789"]
        ],
        response_headers: [
          ["Expires", 5000],
          ["Last-Modified", -3000],
          ["Vary", "Foo, Bar, Baz"]
        ]
      },
      {
        request_headers: [
          ["Foo", "1"],
          ["Bar", "abc"],
          ["Baz", "789"]
        ],
        expected_type: "not_cached"
      }
    ]
  },
  {
    name: "HTTP cache uses three-way Vary response when both request and the original request omited a variant header",
    requests: [
      {
        request_headers: [
          ["Foo", "1"],
          ["Baz", "789"]
        ],
        response_headers: [
          ["Expires", 5000],
          ["Last-Modified", -3000],
          ["Vary", "Foo, Bar, Baz"]
        ]
      },
      {
        request_headers: [
          ["Foo", "1"],
          ["Baz", "789"]
        ],
        expected_type: "cached"
      }
    ]
  },
  {
    name: "HTTP cache doesn't use Vary response with a field value of '*'",
    requests: [
      {
        request_headers: [
          ["Foo", "1"],
          ["Baz", "789"]
        ],
        response_headers: [
          ["Expires", 5000],
          ["Last-Modified", -3000],
          ["Vary", "*"]
        ]
      },
      {
        request_headers: [
          ["*", "1"],
          ["Baz", "789"]
        ],
        expected_type: "not_cached"
      }
    ]
  }
];
run_tests(tests);