From b3f00de195f94abe8880b03349294b0c069327d8 Mon Sep 17 00:00:00 2001
From: Dave Shanley <dave@quobix.com>
Date: Mon, 30 Sep 2024 11:29:37 -0400
Subject: [PATCH] bumped coverage

---
 parameters/query_parameters_test.go | 49 +++++++++++++++++++++++++++++
 parameters/validate_parameter.go    |  2 +-
 2 files changed, 50 insertions(+), 1 deletion(-)

diff --git a/parameters/query_parameters_test.go b/parameters/query_parameters_test.go
index c6d6c5c..1ea69bc 100644
--- a/parameters/query_parameters_test.go
+++ b/parameters/query_parameters_test.go
@@ -2748,3 +2748,52 @@ paths:
 	assert.Equal(t, "lemons 'pizza' is defined as an object, "+
 		"however it failed to be decoded as an object", errs[0].Reason)
 }
+
+// https://github.com/pb33f/wiretap/issues/83
+func TestNewValidator_QueryParamValidateStyle_EmptyDeepObject(t *testing.T) {
+	spec := `openapi: 3.1.0
+info:
+  title: Test
+  version: 0.1.0
+security:
+  - apiKeyAuth: []
+paths:
+  /anything/queryParams/deepObject/obj:
+    get:
+      operationId: deepObjectQueryParamsObject
+      parameters:
+        - name: objParam
+          in: query
+          style: deepObject
+          schema:
+            type: object
+            properties:
+              cake:
+                type: string
+          required: true
+      responses:
+        "200":
+          description: OK
+components:
+  securitySchemes:
+    apiKeyAuth:
+      type: apiKey
+      in: header
+      name: Authorization
+      description: Authenticate using an API Key generated via our platform.`
+
+	doc, _ := libopenapi.NewDocument([]byte(spec))
+
+	m, err := doc.BuildV3Model()
+	assert.Len(t, err, 0) // no patch build here
+
+	v := NewParameterValidator(&m.Model)
+
+	request, _ := http.NewRequest(http.MethodGet,
+		"http://localhost:9090/anything/queryParams/deepObject/obj?objParam", nil)
+
+	valid, errors := v.ValidateQueryParams(request)
+	assert.True(t, valid)
+	assert.Len(t, errors, 0)
+
+}
diff --git a/parameters/validate_parameter.go b/parameters/validate_parameter.go
index c5a6aef..cc48bd3 100644
--- a/parameters/validate_parameter.go
+++ b/parameters/validate_parameter.go
@@ -118,7 +118,7 @@ func ValidateParameterSchema(
 		p := decodedObj
 		if rawIsMap {
 			if g, ko := rawObject.(map[string]interface{}); ko {
-				if len(g) == 0 {
+				if len(g) == 0 || g[""] != nil {
 					p = nil
 				}
 			}