rdblue commented on a change in pull request #4071:
URL: https://github.com/apache/iceberg/pull/4071#discussion_r835975976
##########
File path: core/src/test/java/org/apache/iceberg/TestSnapshotManager.java
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@@ -250,4 +250,268 @@ public void testCherryPickOverwrite() {
lastSnapshotId, table.currentSnapshot().snapshotId());
validateTableFiles(table, FILE_A, FILE_B);
}
+
+ @Test
+ public void testCreateBranch() {
+ table.newAppend()
+ .appendFile(FILE_A)
+ .commit();
+ long snapshotId = table.currentSnapshot().snapshotId();
+ // Test a basic case of creating a branch
+ table.manageSnapshots()
+ .createBranch("branch1", snapshotId)
+ .commit();
+ SnapshotRef expectedBranch = table.ops().refresh().ref("branch1");
+ Assert.assertTrue(expectedBranch != null &&
+
expectedBranch.equals(SnapshotRef.branchBuilder(snapshotId).build()));
+
+ // Trying to create a branch with an existing name should fail
+ AssertHelpers.assertThrows("Should fail validation check if we try and
create branch again",
+ ValidationException.class, "Reference with name branch1 already
exists",
+ () -> table.manageSnapshots().createBranch("branch1",
snapshotId).commit());
+
+ // Trying to create another branch within the same chain
+ AssertHelpers.assertThrows("Should fail validation check if we try and
create branch again",
+ ValidationException.class, "Reference with name branch2 already
exists",
Review comment:
Normally, I think this sort of problem would be
`IllegalArgumentException`. That's what we typically use for arguments to a
table change that are incompatible, not `ValidationException`.
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