@Test
public void testMergeSchema() {
MessageType t1 =
new MessageType(
"root1",
new PrimitiveType(REPEATED, BINARY, "a"),
new PrimitiveType(OPTIONAL, BINARY, "b"));
MessageType t2 = new MessageType("root2", new PrimitiveType(REQUIRED, BINARY, "c"));
assertEquals(
t1.union(t2),
new MessageType(
"root1",
new PrimitiveType(REPEATED, BINARY, "a"),
new PrimitiveType(OPTIONAL, BINARY, "b"),
new PrimitiveType(REQUIRED, BINARY, "c")));
assertEquals(
t2.union(t1),
new MessageType(
"root2",
new PrimitiveType(REQUIRED, BINARY, "c"),
new PrimitiveType(REPEATED, BINARY, "a"),
new PrimitiveType(OPTIONAL, BINARY, "b")));
MessageType t3 = new MessageType("root1", new PrimitiveType(OPTIONAL, BINARY, "a"));
MessageType t4 = new MessageType("root2", new PrimitiveType(REQUIRED, BINARY, "a"));
try {
t3.union(t4);
fail("moving from optional to required");
} catch (IncompatibleSchemaModificationException e) {
assertEquals(
"repetition constraint is more restrictive: can not merge type required binary a into optional binary a",
e.getMessage());
}
assertEquals(t4.union(t3), new MessageType("root2", new PrimitiveType(OPTIONAL, BINARY, "a")));
MessageType t5 =
new MessageType(
"root1",
new GroupType(REQUIRED, "g1", new PrimitiveType(OPTIONAL, BINARY, "a")),
new GroupType(REQUIRED, "g2", new PrimitiveType(OPTIONAL, BINARY, "b")));
MessageType t6 =
new MessageType(
"root1",
new GroupType(REQUIRED, "g1", new PrimitiveType(OPTIONAL, BINARY, "a")),
new GroupType(
REQUIRED,
"g2",
new GroupType(REQUIRED, "g3", new PrimitiveType(OPTIONAL, BINARY, "c")),
new PrimitiveType(OPTIONAL, BINARY, "b")));
assertEquals(
t5.union(t6),
new MessageType(
"root1",
new GroupType(REQUIRED, "g1", new PrimitiveType(OPTIONAL, BINARY, "a")),
new GroupType(
REQUIRED,
"g2",
new PrimitiveType(OPTIONAL, BINARY, "b"),
new GroupType(REQUIRED, "g3", new PrimitiveType(OPTIONAL, BINARY, "c")))));
MessageType t7 = new MessageType("root1", new PrimitiveType(OPTIONAL, BINARY, "a"));
MessageType t8 = new MessageType("root2", new PrimitiveType(OPTIONAL, INT32, "a"));
try {
t7.union(t8);
fail("moving from BINARY to INT32");
} catch (IncompatibleSchemaModificationException e) {
assertEquals("can not merge type optional int32 a into optional binary a", e.getMessage());
}
}
