Updated test snapshots

Author: Brian Vaughn

packages/react-devtools-shared/src/__tests__/TimelineProfiler-test.js

@@ -33,11 +33,11 @@ describe('Timeline profiler', () => {
       // Remove file-system specific bits or version-specific bits of information from the module range marks.
       function filterMarkData(markName) {
         if (markName.startsWith('--react-internal-module-start')) {
-          return `${markName.substr(0, 29)}-<filtered-file-system-path>`;
+          return '--react-internal-module-start-<filtered-file-system-path>';
         } else if (markName.startsWith('--react-internal-module-stop')) {
-          return `${markName.substr(0, 28)}-<filtered-file-system-path>`;
+          return '--react-internal-module-stop-<filtered-file-system-path>';
         } else if (markName.startsWith('--react-version')) {
-          return `${markName.substr(0, 15)}-<filtered-version>`;
+          return '--react-version-<filtered-version>';
         } else {
           return markName;
         }

packages/react-devtools-shared/src/__tests__/__serializers__/profilingSerializer.js

@@ -0,0 +1,25 @@
+import hasOwnProperty from 'shared/hasOwnProperty';
+
+const FILTERED_VERSION_STRING = '<filtered-version>';
+
+// test() is part of Jest's serializer API
+export function test(maybeProfile) {
+  if (
+    maybeProfile != null &&
+    typeof maybeProfile === 'object' &&
+    hasOwnProperty.call(maybeProfile, 'reactVersion') &&
+    maybeProfile.reactVersion !== FILTERED_VERSION_STRING
+  ) {
+    return true;
+  }
+
+  return false;
+}
+
+// print() is part of Jest's serializer API
+export function print(profile, serialize, indent) {
+  return serialize({
+    ...profile,
+    reactVersion: FILTERED_VERSION_STRING,
+  });
+}