herunkang2018 commented on code in PR #3303:
URL: https://github.com/apache/calcite/pull/3303#discussion_r1268805809
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testkit/src/main/java/org/apache/calcite/test/SqlOperatorTest.java:
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@@ -6618,6 +6618,60 @@ private static void checkIf(SqlOperatorFixture f) {
f.checkNull("pow(cast(null as integer), 2)");
}
+ @Test void testInfinity() {
+ final SqlOperatorFixture f = fixture();
+ f.checkScalar("cast('Infinity' as double)", "Infinity",
+ "DOUBLE NOT NULL");
+ f.checkScalar("cast('-Infinity' as double)", "-Infinity",
+ "DOUBLE NOT NULL");
+ f.checkScalar("cast('Infinity' as real)", "Infinity",
+ "REAL NOT NULL");
+ f.checkScalar("cast('-Infinity' as real)", "-Infinity",
+ "REAL NOT NULL");
+ }
+
+ @Test void testNaN() {
+ final SqlOperatorFixture f = fixture();
+ f.checkScalar("cast('NaN' as double)", "NaN",
+ "DOUBLE NOT NULL");
+ f.checkScalar("cast('NaN' as real)", "NaN",
+ "REAL NOT NULL");
+ }
+
+ @Test void testIsInfFunc() {
+ final SqlOperatorFixture f0 = fixture().setFor(SqlLibraryOperators.IS_INF);
+ f0.checkFails("^is_inf(3)^",
+ "No match found for function signature IS_INF\\(<NUMERIC>\\)",
+ false);
+ final SqlOperatorFixture f = f0.withLibrary(SqlLibrary.BIG_QUERY);
+ f.checkBoolean("is_inf(3)", false);
+ f.checkBoolean("is_inf(1.2345)", false);
+ f.checkBoolean("is_inf(cast('NaN' as double))", false);
+ f.checkBoolean("is_inf(cast('NaN' as real))", false);
+ f.checkBoolean("is_inf(cast('Infinity' as double))", true);
+ f.checkBoolean("is_inf(cast('Infinity' as real))", true);
+ f.checkBoolean("is_inf(cast('-Infinity' as double))", true);
+ f.checkBoolean("is_inf(cast('-Infinity' as real))", true);
+ f.checkNull("is_inf(cast(null as double))");
+ }
+
+ @Test void testIsNaNFunc() {
+ final SqlOperatorFixture f0 = fixture().setFor(SqlLibraryOperators.IS_NAN);
+ f0.checkFails("^is_nan(3)^",
+ "No match found for function signature IS_NAN\\(<NUMERIC>\\)",
+ false);
+ final SqlOperatorFixture f = f0.withLibrary(SqlLibrary.BIG_QUERY);
+ f.checkBoolean("is_nan(3)", false);
+ f.checkBoolean("is_nan(1.2345)", false);
Review Comment:
Could you add a test case when decimal is Infinity or NaN?
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