Update

Author: nik9000

x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/expression/function/scalar/math/CopySign.java

@@ -61,13 +61,10 @@ EvalOperator.ExpressionEvaluator.Factory create(
 
     private DataType dataType;
 
-    @FunctionInfo(
-        description = """
-            Returns a value with the magnitude of the first argument and the sign of the second argument.
-            This function is similar to Java's Math.copySign(double magnitude, double sign) which is
-            similar to `copysign` from [IEEE 754](https://en.wikipedia.org/wiki/IEEE_754).""",
-        returnType = { "double", "integer", "long" }
-    )
+    @FunctionInfo(description = """
+        Returns a value with the magnitude of the first argument and the sign of the second argument.
+        This function is similar to Java's Math.copySign(double magnitude, double sign) which is
+        similar to `copysign` from [IEEE 754](https://en.wikipedia.org/wiki/IEEE_754).""", returnType = { "double", "integer", "long" })
     public CopySign(
         Source source,
         @Param(

x-pack/plugin/esql/src/test/java/org/elasticsearch/xpack/esql/expression/function/TestCaseSupplier.java

@@ -358,7 +358,11 @@ public static List<TypedDataSupplier> getSuppliersForNumericType(DataType type,
         throw new IllegalArgumentException("bogus numeric type [" + type + "]");
     }
 
-    public static List<TypedDataSupplier> getSuppliersForNumericType(DataType type) {
+    /**
+     * A {@link List} of the cases for the specified type without any limits.
+     * See {@link #getSuppliersForNumericType} for cases with limits on numbers.
+     */
+    public static List<TypedDataSupplier> unlimitedSuppliers(DataType type) {
         if (type == DataType.INTEGER) {
             return intCases(Integer.MIN_VALUE, Integer.MAX_VALUE, true);
         }

x-pack/plugin/esql/src/test/java/org/elasticsearch/xpack/esql/expression/function/scalar/math/CopySignTests.java

@@ -26,7 +26,7 @@
 
 import static org.elasticsearch.xpack.esql.expression.function.TestCaseSupplier.casesCrossProduct;
 import static org.elasticsearch.xpack.esql.expression.function.TestCaseSupplier.getCastEvaluator;
-import static org.elasticsearch.xpack.esql.expression.function.TestCaseSupplier.getSuppliersForNumericType;
+import static org.elasticsearch.xpack.esql.expression.function.TestCaseSupplier.unlimitedSuppliers;
 import static org.hamcrest.Matchers.equalTo;
 
 public class CopySignTests extends AbstractScalarFunctionTestCase {
@@ -78,8 +78,8 @@ public static Iterable<Object[]> parameters() {
                 };
                 casesCrossProduct(
                     expected,
-                    getSuppliersForNumericType(lhsType),
-                    getSuppliersForNumericType(rhsType),
+                    unlimitedSuppliers(lhsType),
+                    unlimitedSuppliers(rhsType),
                     evaluatorToString,
                     (l, r) -> List.of(),
                     suppliers,