test(bigquery): warm up client in beforeClass to stabilize testFastSQLQueryMultiPage

jinseopkim0 · jinseopkim0 · commit 922ad35ce76e · 2026-06-12T17:00:00.000-04:00
b/467064659
diff --git a/java-bigquery/google-cloud-bigquery/src/test/java/com/google/cloud/bigquery/it/ITBigQueryTest.java b/java-bigquery/google-cloud-bigquery/src/test/java/com/google/cloud/bigquery/it/ITBigQueryTest.java
@@ -1184,6 +1184,9 @@ static void beforeClass() throws InterruptedException, IOException {
     Job jobLargeTable = bigquery.create(JobInfo.of(configurationLargeTable));
     jobLargeTable = jobLargeTable.waitFor();
     assertNull(jobLargeTable.getStatus().getError());
+
+    // Warmup query to initialize connection and avoid cold start timeout in subsequent tests
+    bigquery.query(QueryJobConfiguration.of("SELECT 1"));
   }
 
   @AfterAll

Original file line number	Diff line number	Diff line change
`@@ -1184,6 +1184,9 @@ static void beforeClass() throws InterruptedException, IOException {`
`1184`	`1184`	`Job jobLargeTable = bigquery.create(JobInfo.of(configurationLargeTable));`
`1185`	`1185`	`jobLargeTable = jobLargeTable.waitFor();`
`1186`	`1186`	`assertNull(jobLargeTable.getStatus().getError());`
	`1187`	`+`
	`1188`	`+ // Warmup query to initialize connection and avoid cold start timeout in subsequent tests`
	`1189`	`+ bigquery.query(QueryJobConfiguration.of("SELECT 1"));`
`1187`	`1190`	`}`
`1188`	`1191`
`1189`	`1192`	`@AfterAll`