snuyanzin commented on code in PR #29370:
URL: https://github.com/apache/flink/pull/29370#discussion_r4167443895
##########
flink-table/flink-table-runtime/src/test/java/org/apache/flink/table/runtime/functions/VariantCastUtilsTest.java:
##########
@@ -65,6 +79,49 @@ void testCastToVariantRejectsValuesOverTheSizeLimit() {
.hasMessageStartingWith("Cannot cast a string value of
16777212 bytes to VARIANT.");
}
+ @ParameterizedTest
+ @ValueSource(strings = {"", "hello", "Grüße, 世界 🚀"})
+ void testCastStringToVariantStoresItsUtf8Bytes(final String str) {
+
assertThat(fromString(binaryString(str.getBytes(UTF_8)))).isEqualTo(BUILDER.of(str));
+ }
+
+ @ParameterizedTest
+ @MethodSource("invalidUtf8")
+ void testCastStringToVariantReplacesInvalidUtf8(final byte[] invalid) {
+ final Variant variant = fromString(binaryString(invalid));
+
+ assertThat(variant.getString()).contains(REPLACEMENT_CHARACTER);
+ assertThat(variant).isEqualTo(BUILDER.of(new String(invalid, UTF_8)));
+ }
+
+ private static Stream<byte[]> invalidUtf8() {
+ return Stream.of(
+ new byte[] {'a', (byte) 0xFF, 'b'},
+ new byte[] {'a', (byte) 0xC3},
+ new byte[] {(byte) 0xC0, (byte) 0xAF},
+ new byte[] {(byte) 0xED, (byte) 0xA0, (byte) 0x80});
+ }
+
+ @ParameterizedTest(name = "{0} as DECIMAL({1}, {2})")
+ @CsvSource({
+ "0, 1, 0",
+ "1.50, 10, 2",
+ "999999999, 9, 0",
+ "-0.999999999, 9, 9",
+ "1000000000, 10, 0",
+ "0.0000000001, 10, 10",
+ "-999999999999999999, 18, 0",
Review Comment:
why don't we have tests for negative scale?
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