add API tests directly #193

[oliveregger]

This PR adds a first version to test the validation API with the $validate operation

• tests are run with no external dependencies (no tx.fhir.org)
• a tests has been added that it is checked that the validation session gets reused
• a test ig is added https://github.com/ahdis/matchbox-test-ig for tests, that in future we can add additional test resources there and don't need to provide them in matchbox directly

the operation outcome has been extended, that the textual validation information is also added:

{
  "resourceType": "OperationOutcome",
  "id": "516b797860fe08b49713a0f6b3ed1216dad0ce97af98a834796cc8437a07c9d7",
  "issue": [ {
    "extension": [ {
      "url": "http://matchbox.health/validiation",
      "extension": [ {
        "url": "profile",
        "valueUri": "http://hl7.org/fhir/StructureDefinition/Patient"
      }, {
        "url": "profileVersion",
        "valueUri": "4.0.1"
      }, {
        "url": "profileDate",
        "valueDateTime": "2019-11-01T09:29:23+11:00"
      }, {
        "url": "total",
        "valueDuration": {
          "value": 39,
          "unit": "ms"
        }
      }, {
        "url": "validatorVersion",
        "valueString": "powered by matchbox 3.5.4, hapi-fhir 6.10.0 and org.hl7.fhir.core 6.1.16"
      }, {
        "url": "ig",
        "valueString": "hl7.fhir.r4.core#4.0.1"
      }, {
        "url": "hintAboutNonMustSupport",
        "valueBoolean": false
      }, {
        "url": "recursive",
        "valueBoolean": false
      }, {
        "url": "showMessagesFromReferences",
        "valueBoolean": false
      }, {
        "url": "doDebug",
        "valueBoolean": false
      }, {
        "url": "assumeValidRestReferences",
        "valueBoolean": false
      }, {
        "url": "canDoNative",
        "valueBoolean": false
      }, {
        "url": "noExtensibleBindingMessages",
        "valueBoolean": false
      }, {
        "url": "noUnicodeBiDiControlChars",
        "valueBoolean": false
      }, {
        "url": "noInvariants",
        "valueBoolean": false
      }, {
        "url": "displayIssuesAreWarnings",
        "valueBoolean": true
      }, {
        "url": "wantInvariantsInMessages",
        "valueBoolean": false
      }, {
        "url": "doImplicitFHIRPathStringConversion",
        "valueBoolean": false
      }, {
        "url": "securityChecks",
        "valueBoolean": false
      }, {
        "url": "crumbTrails",
        "valueBoolean": false
      }, {
        "url": "forPublication",
        "valueBoolean": false
      }, {
        "url": "httpReadOnly",
        "valueBoolean": false
      }, {
        "url": "allowExampleUrls",
        "valueBoolean": false
      }, {
        "url": "txServer",
        "valueUri": "http://localhost:8081/matchboxv3/fhir"
      }, {
        "url": "lang"
      }, {
        "url": "snomedCT"
      }, {
        "url": "fhirVersion",
        "valueString": "4.0.1"
      }, {
        "url": "ig",
        "valueString": "hl7.fhir.r4.core#4.0.1"
      }, {
        "url": "locale",
        "valueString": "English"
      }, {
        "url": "jurisdiction",
        "valueString": "urn:iso:std:iso:3166#CH"
      }, {
        "url": "sessionId",
        "valueString": "211057106"
      }, {
        "url": "package",
        "valueString": "hl7.fhir.xver-extensions#4.0"
      }, {
        "url": "package",
        "valueString": "hl7.fhir.r4.core#4.0.1"
      }, {
        "url": "package",
        "valueString": "hl7.fhir.uv.extensions.r4#1.0.0"
      }, {
        "url": "package",
        "valueString": "hl7.terminology#5.4.0"
      } ]
    } ],
    "severity": "information",
    "code": "informational",
    "diagnostics": "Validation for profile http://hl7.org/fhir/StructureDefinition/Patient|4.0.1 (2019-11-01T09:29:23+11:00). Loaded packages: hl7.fhir.xver-extensions#4.0, hl7.fhir.r4.core#4.0.1, hl7.fhir.uv.extensions.r4#1.0.0, hl7.terminology#5.4.0. Duration: 0.039s. powered by matchbox 3.5.4, hapi-fhir 6.10.0 and org.hl7.fhir.core 6.1.16. Validation parameters: CliContext{doNative=false, hintAboutNonMustSupport=false, recursive=false, showMessagesFromReferences=false, doDebug=false, assumeValidRestReferences=false, canDoNative=false, noExtensibleBindingMessages=false, noUnicodeBiDiControlChars=false, noInvariants=false, displayIssuesAreWarnings=true, wantInvariantsInMessages=false, doImplicitFHIRPathStringConversion=false, htmlInMarkdownCheck=WARNING, txServer='http://localhost:8081/matchboxv3/fhir', lang='null', snomedCT='null', fhirVersion='4.0.1', ig='hl7.fhir.r4.core#4.0.1', questionnaireMode=CHECK, level=HINTS, mode=VALIDATION, securityChecks=false, crumbTrails=false, forPublication=false, allowExampleUrls=false, locale='English', locations={}, jurisdiction='urn:iso:std:iso:3166#CH', igsPreloaded=null, onlyOneEngine=false, httpReadOnly=false}"
  }, {
    "severity": "information",
    "code": "informational",
    "diagnostics": "No fatal or error issues detected, the validation has passed"
  } ]
}

[oliveregger]

rebased it on the ql_dependency_upgrade2 branch and added a changelog