Remove warning for exclusiveMinimum and exclusiveMaximum for Draft 4 (#1127)

Author: justin-tay

src/main/java/com/networknt/schema/Version4.java

@@ -26,7 +26,9 @@ private static class Holder {
                             new AnnotationKeyword("default"),
                             new NonValidationKeyword("definitions"),
                             new NonValidationKeyword("additionalItems"),
-                            new AnnotationKeyword("exampleSetFlag")
+                            new AnnotationKeyword("exampleSetFlag"),
+                            new NonValidationKeyword("exclusiveMinimum"), // exclusiveMinimum boolean handled by minimum validator
+                            new NonValidationKeyword("exclusiveMaximum")  // exclusiveMaximum boolean handled by maximum validator
                     ))
                     .build(); 
         }

src/test/java/com/networknt/schema/ExclusiveMinimumValidatorTest.java

@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2024 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.networknt.schema;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+import java.util.Set;
+
+import org.junit.jupiter.api.Test;
+
+import com.networknt.schema.SpecVersion.VersionFlag;
+
+/**
+ * Test ExclusiveMinimumValidator validator.
+ */
+public class ExclusiveMinimumValidatorTest {
+    @Test
+    void draftV4ShouldHaveExclusiveMinimum() {
+        String schemaData = "{" +
+                "  \"type\": \"object\"," +
+                "  \"properties\": {" +
+                "    \"value1\": {" +
+                "      \"type\": \"number\"," +
+                "      \"minimum\": 0," +
+                "      \"exclusiveMinimum\": true" +
+                "    }" +
+                "  }" +
+                "}";        
+        JsonMetaSchema metaSchema = JsonMetaSchema.builder(JsonMetaSchema.getV4())
+                .unknownKeywordFactory(DisallowUnknownKeywordFactory.getInstance()).build();
+        JsonSchemaFactory factory = JsonSchemaFactory.getInstance(VersionFlag.V4,
+                builder -> builder.metaSchema(metaSchema));
+        JsonSchema schema = factory.getSchema(schemaData);
+        String inputData = "{\"value1\":0}";
+        String validData = "{\"value1\":0.1}";
+        
+        Set<ValidationMessage> messages = schema.validate(inputData, InputFormat.JSON);
+        assertEquals(1, messages.size());
+        assertEquals(1, messages.stream().filter(m -> "minimum".equals(m.getType())).count());
+        
+        messages = schema.validate(validData, InputFormat.JSON);
+        assertEquals(0, messages.size());
+    }
+
+    @Test
+    void draftV6ShouldNotAllowExclusiveMinimumBoolean() {
+        String schemaData = "{" +
+                "  \"type\": \"object\"," +
+                "  \"properties\": {" +
+                "    \"value1\": {" +
+                "      \"type\": \"number\"," +
+                "      \"minimum\": 0," +
+                "      \"exclusiveMinimum\": true" +
+                "    }" +
+                "  }" +
+                "}";
+        JsonMetaSchema metaSchema = JsonMetaSchema.builder(JsonMetaSchema.getV6())
+                .unknownKeywordFactory(DisallowUnknownKeywordFactory.getInstance()).build();
+        JsonSchemaFactory factory = JsonSchemaFactory.getInstance(VersionFlag.V6,
+                builder -> builder.metaSchema(metaSchema));
+        assertThrows(JsonSchemaException.class, () -> factory.getSchema(schemaData));
+    }
+
+    @Test
+    void draftV7ShouldNotAllowExclusiveMinimumBoolean() {
+        String schemaData = "{" +
+                "  \"type\": \"object\"," +
+                "  \"properties\": {" +
+                "    \"value1\": {" +
+                "      \"type\": \"number\"," +
+                "      \"minimum\": 0," +
+                "      \"exclusiveMinimum\": true" +
+                "    }" +
+                "  }" +
+                "}";
+        JsonMetaSchema metaSchema = JsonMetaSchema.builder(JsonMetaSchema.getV7())
+                .unknownKeywordFactory(DisallowUnknownKeywordFactory.getInstance()).build();
+        JsonSchemaFactory factory = JsonSchemaFactory.getInstance(VersionFlag.V7,
+                builder -> builder.metaSchema(metaSchema));
+        assertThrows(JsonSchemaException.class, () -> factory.getSchema(schemaData));
+    }
+}