@aws-cdk/integ-tests-alpha
Version:
CDK Integration Testing Constructs
144 lines • 13.1 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.AssertionHandler = void 0;
/* eslint-disable no-console */
// eslint-disable-next-line import/no-extraneous-dependencies
const helpers_internal_1 = require("aws-cdk-lib/assertions/lib/helpers-internal");
const base_1 = require("./base");
class AssertionHandler extends base_1.CustomResourceHandler {
async processEvent(request) {
let actual = decodeCall(request.actual);
const expected = decodeCall(request.expected);
let result;
const matcher = new MatchCreator(expected).getMatcher();
console.log(`Testing equality between ${JSON.stringify(request.actual)} and ${JSON.stringify(request.expected)}`);
const matchResult = matcher.test(actual);
matchResult.finished();
if (matchResult.hasFailed()) {
result = {
failed: true,
assertion: JSON.stringify({
status: 'fail',
message: matchResult.renderMismatch(),
}),
};
if (request.failDeployment) {
throw new Error(result.assertion);
}
}
else {
result = {
assertion: JSON.stringify({
status: 'success',
}),
};
}
return result;
}
}
exports.AssertionHandler = AssertionHandler;
class MatchCreator {
constructor(obj) {
this.parsedObj = {
matcher: obj,
};
}
/**
* Return a Matcher that can be tested against the actual results.
* This will convert the encoded matchers into their corresponding
* assertions matcher.
*
* For example:
*
* ExpectedResult.objectLike({
* Messages: [{
* Body: Match.objectLike({
* Elements: Match.arrayWith([{ Asdf: 3 }]),
* Payload: Match.serializedJson({ key: 'value' }),
* }),
* }],
* });
*
* Will be encoded as:
* {
* $ObjectLike: {
* Messages: [{
* Body: {
* $ObjectLike: {
* Elements: {
* $ArrayWith: [{ Asdf: 3 }],
* },
* Payload: {
* $SerializedJson: { key: 'value' }
* }
* },
* },
* }],
* },
* }
*
* Which can then be parsed by this function. For each key (recursively)
* the parser will check if the value has one of the encoded matchers as a key
* and if so, it will set the value as the Matcher. So,
*
* {
* Body: {
* $ObjectLike: {
* Elements: {
* $ArrayWith: [{ Asdf: 3 }],
* },
* Payload: {
* $SerializedJson: { key: 'value' }
* }
* },
* },
* }
*
* Will be converted to
* {
* Body: Match.objectLike({
* Elements: Match.arrayWith([{ Asdf: 3 }]),
* Payload: Match.serializedJson({ key: 'value' }),
* }),
* }
*/
getMatcher() {
try {
const final = JSON.parse(JSON.stringify(this.parsedObj), function (_k, v) {
const nested = Object.keys(v)[0];
switch (nested) {
case '$ArrayWith':
return helpers_internal_1.Match.arrayWith(v[nested]);
case '$ObjectLike':
return helpers_internal_1.Match.objectLike(v[nested]);
case '$StringLike':
return helpers_internal_1.Match.stringLikeRegexp(v[nested]);
case '$SerializedJson':
return helpers_internal_1.Match.serializedJson(v[nested]);
default:
return v;
}
});
if (helpers_internal_1.Matcher.isMatcher(final.matcher)) {
return final.matcher;
}
return helpers_internal_1.Match.exact(final.matcher);
}
catch {
return helpers_internal_1.Match.exact(this.parsedObj.matcher);
}
}
}
function decodeCall(call) {
if (!call) {
return undefined;
}
try {
const parsed = JSON.parse(call);
return parsed;
}
catch {
return call;
}
}
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For each key (recursively)\n   * the parser will check if the value has one of the encoded matchers as a key\n   * and if so, it will set the value as the Matcher. So,\n   *\n   * {\n   *   Body: {\n   *     $ObjectLike: {\n   *       Elements: {\n   *         $ArrayWith: [{ Asdf: 3 }],\n   *       },\n   *       Payload: {\n   *         $SerializedJson: { key: 'value' }\n   *       }\n   *     },\n   *   },\n   * }\n   *\n   * Will be converted to\n   * {\n   *   Body: Match.objectLike({\n   *     Elements: Match.arrayWith([{ Asdf: 3 }]),\n   *     Payload: Match.serializedJson({ key: 'value' }),\n   *   }),\n   * }\n   */\n  public getMatcher(): Matcher {\n    try {\n      const final = JSON.parse(JSON.stringify(this.parsedObj), function(_k, v) {\n        const nested = Object.keys(v)[0];\n        switch (nested) {\n          case '$ArrayWith':\n            return Match.arrayWith(v[nested]);\n          case '$ObjectLike':\n            return Match.objectLike(v[nested]);\n          case '$StringLike':\n            return Match.stringLikeRegexp(v[nested]);\n          case '$SerializedJson':\n            return Match.serializedJson(v[nested]);\n          default:\n            return v;\n        }\n      });\n      if (Matcher.isMatcher(final.matcher)) {\n        return final.matcher;\n      }\n      return Match.exact(final.matcher);\n    } catch {\n      return Match.exact(this.parsedObj.matcher);\n    }\n  }\n}\n\nfunction decodeCall(call?: string) {\n  if (!call) { return undefined; }\n  try {\n    const parsed = JSON.parse(call);\n    return parsed;\n  } catch {\n    return call;\n  }\n}\n"]}