Function matcherHintFromConfig

packages/jest-snapshot/src/printSnapshot.ts:94–141

(
  {
    context: {isNot, promise},
    hint,
    inlineSnapshot,
    matcherName,
    properties,
  }: MatchSnapshotConfig,
  isUpdatable: boolean,
)

export const PROPERTIES_ARG = 'properties';

export const matcherHintFromConfig = (
  {
    context: {isNot, promise},
    hint,
    inlineSnapshot,
    matcherName,
    properties,
  }: MatchSnapshotConfig,
  isUpdatable: boolean,
): string => {
  const options: MatcherHintOptions = {isNot, promise};
  if (isUpdatable) {
    options.receivedColor = bReceivedColor;
  }

  let expectedArgument = '';

  if (typeof properties === 'object') {
    expectedArgument = PROPERTIES_ARG;
    if (isUpdatable) {
      options.expectedColor = noColor;
    }

    if (typeof hint === 'string' && hint.length > 0) {
      options.secondArgument = HINT_ARG;
      options.secondArgumentColor = BOLD_WEIGHT;
    } else if (typeof inlineSnapshot === 'string') {
      options.secondArgument = SNAPSHOT_ARG;
      if (isUpdatable) {
        options.secondArgumentColor = aSnapshotColor;
      } else {
        options.secondArgumentColor = noColor;
      }
    }
  } else {
    if (typeof hint === 'string' && hint.length > 0) {
      expectedArgument = HINT_ARG;
      options.expectedColor = BOLD_WEIGHT;
    } else if (typeof inlineSnapshot === 'string') {
      expectedArgument = SNAPSHOT_ARG;
      if (isUpdatable) {
        options.expectedColor = aSnapshotColor;
      }
    }
  }

  return matcherHint(matcherName, undefined, expectedArgument, options);
};

// Given array of diffs, return string:
// * include common substrings