SERVER-53234 jstests/core/profile2.js fails when background operations are run against test database

1 files changed, 28 insertions, 34 deletions

diff --git a/jstests/core/profile2.js b/jstests/core/profile2.js
index dd7dc61f23a..4694f5b8c6c 100644
--- a/jstests/core/profile2.js
+++ b/jstests/core/profile2.js
@@ -12,6 +12,19 @@ coll.drop();
 coll.getDB().system.profile.drop();
 assert.commandWorked(coll.getDB().runCommand({profile: 2}));
 
+/**
+ * Asserts that array 'results' contains a profiler generated document that corresponds to a
+ * truncated command that matches a regular expression 'truncatedCommandRegexp'. Outputs a message
+ * 'message' in case such document is not present.
+ */
+function assertContainsTruncatedCommand(results, truncatedCommandRegexp, message) {
+    const document = results.find(
+        element => element.hasOwnProperty('ns') && element.hasOwnProperty('millis') &&
+            element.hasOwnProperty('command') && 'string' === typeof (element.command.$truncated) &&
+            element.command.$truncated.match(truncatedCommandRegexp));
+    assert(document, message + ` Retrieved documents: ${tojson(results)}`);
+}
+
 var str = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
 var hugeStr = str;
 while (hugeStr.length < 2 * 1024 * 1024) {
@@ -21,14 +34,9 @@ while (hugeStr.length < 2 * 1024 * 1024) {
 // Test query with large string element.
 coll.find({a: hugeStr}).itcount();
 var results = coll.getDB().system.profile.find().toArray();
-assert.eq(1, results.length);
-var result = results[0];
-assert(result.hasOwnProperty('ns'));
-assert(result.hasOwnProperty('millis'));
-assert(result.hasOwnProperty('command'));
-assert.eq('string', typeof (result.command.$truncated));
-// String value is truncated.
-assert(result.command.$truncated.match(/filter: { a: "a+\.\.\." }/));
+assertContainsTruncatedCommand(results,
+                               /filter: { a: "a+\.\.\." }//* string value is truncated*/,
+                               "Document corresponding to 'find' command not found.");
 
 assert.commandWorked(coll.getDB().runCommand({profile: 0}));
 coll.getDB().system.profile.drop();
@@ -37,15 +45,10 @@ assert.commandWorked(coll.getDB().runCommand({profile: 2}));
 // Test update with large string element in query portion.
 assert.commandWorked(coll.update({a: hugeStr}, {}));
 var results = coll.getDB().system.profile.find().toArray();
-assert.eq(1, results.length);
-var result = results[0];
-assert(result.hasOwnProperty('ns'));
-assert(result.hasOwnProperty('millis'));
-assert(result.hasOwnProperty('command'));
-assert.eq('string', typeof (result.command.$truncated));
-// String value is truncated.
-assert(result.command.$truncated.match(
-    /^{ q: { a: "a+\.\.\." }, u: {}, multi: false, upsert: false }$/));
+assertContainsTruncatedCommand(
+    results,
+    /^{ q: { a: "a+\.\.\." }, u: {}, multi: false, upsert: false }$//* string value is truncated*/,
+    "Document corresponding to 'update' command not found.");
 
 assert.commandWorked(coll.getDB().runCommand({profile: 0}));
 coll.getDB().system.profile.drop();
@@ -54,15 +57,10 @@ assert.commandWorked(coll.getDB().runCommand({profile: 2}));
 // Test update with large string element in update portion.
 assert.commandWorked(coll.update({}, {a: hugeStr}));
 var results = coll.getDB().system.profile.find().toArray();
-assert.eq(1, results.length);
-var result = results[0];
-assert(result.hasOwnProperty('ns'));
-assert(result.hasOwnProperty('millis'));
-assert(result.hasOwnProperty('command'));
-assert.eq('string', typeof (result.command.$truncated));
-// String value is truncated.
-assert(result.command.$truncated.match(
-    /^{ q: {}, u: { a: "a+\.\.\." }, multi: false, upsert: false }$/));
+assertContainsTruncatedCommand(
+    results,
+    /^{ q: {}, u: { a: "a+\.\.\." }, multi: false, upsert: false }$//* string value is truncated*/,
+    "Document corresponding to 'update' command not found.");
 
 assert.commandWorked(coll.getDB().runCommand({profile: 0}));
 coll.getDB().system.profile.drop();
@@ -75,13 +73,9 @@ for (var i = 0; i < 100 * 1000; ++i) {
 }
 coll.find(doc).itcount();
 var results = coll.getDB().system.profile.find().toArray();
-assert.eq(1, results.length);
-var result = results[0];
-assert(result.hasOwnProperty('ns'));
-assert(result.hasOwnProperty('millis'));
-assert(result.hasOwnProperty('command'));
-assert.eq('string', typeof (result.command.$truncated));
-// Query object itself is truncated.
-assert(result.command.$truncated.match(/filter: { a0: 1\.0, a1: .*\.\.\.$/));
+assertContainsTruncatedCommand(
+    results,
+    /filter: { a0: 1\.0, a1: .*\.\.\.$//* query object itself is truncated*/,
+    "Document corresponding to 'find' command not found.");
 
 assert.commandWorked(coll.getDB().runCommand({profile: 0}));