Selecting responses for update

[mnot]

• strong validator must match
• weak validator selects most recent
• no validator and one stored response = updates that one

[mnot]

first two are covered by #72

[mnot]

Tried third one with this in update304.mjs:

// Then, check to see if update happens even without validator
tests.push({
  name: `HTTP cache must update and return \`${storedHeader}\` from a \`304\` even when there is no validator stored`,
  id: `304-noval-use-stored-${storedHeader}`,
  depends_on: [`304-lm-use-stored-${storedHeader}`],
  requests: [
    {
      response_headers: [
        ['Cache-Control', 'max-age=1'],
        ['Date', 0],
        [storedHeader, valueA]
      ],
      setup: true,
      pause_after: true
    },
    {
      request_headers: [
        ['If-Modified-Since', -3000]
      ],
      magic_ims: true,
      response_status: [304, 'Not Modified'],
      response_headers: [
        ['Cache-Control', 'max-age=1000'],
        ['Date', 0],
        [storedHeader, valueB]
      ],
      expected_response_headers: [
        [storedHeader, valueB]
      ]
    },
    {
      expected_type: 'cached',
      setup_tests: ['expected_type'],
      expected_response_headers: [
        [storedHeader, valueB]
      ]
    }
  ]
})

No proxy checked returned the 304 to the client except for Trafficserver, which thought it was an error, and didn't update the response.

I think we need more nuanced validation tests before getting to this.

[mnot]

Closing as not practically testable