fix OpenAPI 3.1 exclusiveMinimum/exclusiveMaximum result type (#114)

Author: hauner

openapi-parser/src/main/java/io/openapiparser/model/v31/Schema.java

@@ -234,10 +234,10 @@ public Collection<String> getType () {
     /**
      * JSON Schema Validation: validation Keywords for numeric instances (number and integer)
      *
-     * @return exclusive maximum or false if missing
+     * @return exclusive maximum or null if missing
      */
-    public Boolean getExclusiveMaximum () {
-        return getBooleanOrDefault (EXCLUSIVE_MAXIMUM, false);
+    public @Nullable Number getExclusiveMaximum () {
+        return getNumberOrNull (EXCLUSIVE_MAXIMUM);
     }
 
     /**
@@ -252,10 +252,10 @@ public Boolean getExclusiveMaximum () {
     /**
      * JSON Schema Validation: validation Keywords for numeric instances (number and integer)
      *
-     * @return exclusive minimum or false if missing
+     * @return exclusive minimum or null if missing
      */
-    public Boolean getExclusiveMinimum () {
-        return getBooleanOrDefault (EXCLUSIVE_MINIMUM, false);
+    public  Number getExclusiveMinimum () {
+        return getNumberOrNull (EXCLUSIVE_MINIMUM);
     }
 
     /**

openapi-parser/src/test/kotlin/io/openapiparser/model/v30/SchemaSpec.kt

@@ -37,6 +37,14 @@ class SchemaSpec: StringSpec({
         schema().nullable.shouldBeFalse()
     }
 
+    "gets schema exclusiveMaximum is false if missing" {
+        schema().exclusiveMaximum.shouldBeFalse()
+    }
+
+    "gets schema exclusiveMinimum is false if missing" {
+        schema().exclusiveMinimum.shouldBeFalse()
+    }
+
     "gets schema additionalProperties" {
         schema("additionalProperties: false").additionalProperties.shouldBeInstanceOf<Boolean>()
         schema("additionalProperties: {}").additionalProperties.shouldBeInstanceOf<Schema>()

openapi-parser/src/test/kotlin/io/openapiparser/model/v31/SchemaSpec.kt

@@ -70,6 +70,14 @@ class SchemaSpec: StringSpec({
         schema().minContains shouldBe 1
     }
 
+    "gets schema exclusiveMaximum is null if missing" {
+        schema().exclusiveMaximum.shouldBeNull()
+    }
+
+    "gets schema exclusiveMinimum is null if missing" {
+        schema().exclusiveMinimum.shouldBeNull()
+    }
+
     "gets schema dependentRequired" {
         val required = schema("dependentRequired: {bar: [foo]}").dependentRequired
         required shouldContainKey "bar"

openapi-parser/src/test/kotlin/io/openapiparser/model/v3x/SchemaSpec.kt

@@ -42,12 +42,7 @@ class SchemaSpec: StringSpec({
 
     "gets schema exclusiveMaximum" {
         schema30("exclusiveMaximum: true").exclusiveMaximum.shouldBeTrue()
-        schema31("exclusiveMaximum: true").exclusiveMaximum.shouldBeTrue()
-    }
-
-    "gets schema exclusiveMaximum is false if missing" {
-        schema30().exclusiveMaximum.shouldBeFalse()
-        schema31().exclusiveMaximum.shouldBeFalse()
+        schema31("exclusiveMaximum: 9.9").exclusiveMaximum shouldBe 9.9
     }
 
     "gets schema minimum" {
@@ -62,12 +57,7 @@ class SchemaSpec: StringSpec({
 
     "gets schema exclusiveMinimum" {
         schema30("exclusiveMinimum: true").exclusiveMinimum.shouldBeTrue()
-        schema31("exclusiveMinimum: true").exclusiveMinimum.shouldBeTrue()
-    }
-
-    "gets schema exclusiveMinimum is false if missing" {
-        schema30().exclusiveMinimum.shouldBeFalse()
-        schema31().exclusiveMinimum.shouldBeFalse()
+        schema31("exclusiveMinimum: 9.9").exclusiveMinimum shouldBe 9.9
     }
 
     "gets schema maxLength" {