nastra commented on code in PR #12194:
URL: https://github.com/apache/iceberg/pull/12194#discussion_r2288360585
##########
core/src/test/java/org/apache/iceberg/rest/TestRESTCatalog.java:
##########
@@ -2698,6 +2706,135 @@ public void
testTableExistsFallbackToGETRequestWithLegacyServer() {
verifyTableExistsFallbackToGETRequest(ConfigResponse.builder().build());
}
+ @Test
+ public void testETagCreateTableAndLoadTable() {
+ Map<String, String> respHeaders = Maps.newConcurrentMap();
+
+ RESTCatalog catalog = catalogWithResponseHeaders(respHeaders);
+
+ if (requiresNamespaceCreate()) {
+ catalog.createNamespace(TABLE.namespace());
+ }
+
+ catalog.createTable(TABLE, SCHEMA);
+
+ assertThat(respHeaders).containsKey(HttpHeaders.ETAG);
+ String eTag = respHeaders.get(HttpHeaders.ETAG);
+ respHeaders.clear();
+
+ catalog.loadTable(TABLE);
+
+ assertThat(respHeaders).containsEntry(HttpHeaders.ETAG, eTag);
+ }
+
+ @Test
+ public void testETagDifferentTables() {
+ Map<String, String> respHeaders = Maps.newConcurrentMap();
+
+ RESTCatalog catalog = catalogWithResponseHeaders(respHeaders);
+
+ if (requiresNamespaceCreate()) {
+ catalog.createNamespace(TABLE.namespace());
+ }
+
+ catalog.createTable(TABLE, SCHEMA);
+
+ assertThat(respHeaders).containsKey(HttpHeaders.ETAG);
+ String eTagTbl1 = respHeaders.get(HttpHeaders.ETAG);
+ respHeaders.clear();
+
+ catalog.createTable(TableIdentifier.of(TABLE.namespace(), "table2"),
SCHEMA);
+
+ assertThat(respHeaders).containsKey(HttpHeaders.ETAG);
+ assertThat(eTagTbl1).isNotEqualTo(respHeaders.get(HttpHeaders.ETAG));
+ }
+
+ @Test
+ public void testETagAfterDataUpdate() {
+ Map<String, String> respHeaders = Maps.newConcurrentMap();
+
+ RESTCatalog catalog = catalogWithResponseHeaders(respHeaders);
+
+ if (requiresNamespaceCreate()) {
+ catalog.createNamespace(TABLE.namespace());
+ }
+
+ Table tbl = catalog.createTable(TABLE, SCHEMA);
+
+ assertThat(respHeaders).containsKey(HttpHeaders.ETAG);
+ String eTag = respHeaders.get(HttpHeaders.ETAG);
+
+ respHeaders.clear();
+
+ tbl.newAppend().appendFile(FILE_A).commit();
+
+ assertThat(respHeaders).containsKey(HttpHeaders.ETAG);
+ assertThat(eTag).isNotEqualTo(respHeaders.get(HttpHeaders.ETAG));
+ }
+
+ @Test
+ public void testETagAfterMetadataOnlyUpdate() {
+ Map<String, String> respHeaders = Maps.newConcurrentMap();
Review Comment:
```suggestion
Map<String, String> respHeaders = Maps.newHashMap();
```
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