From a20abe5f1b5b6c82027c825b1ab9b51887948aa9 Mon Sep 17 00:00:00 2001
From: Reuven Harrison <rh@tufin.com>
Date: Tue, 30 May 2023 09:07:55 +0300
Subject: [PATCH] fix crash on load (#795)

---
 openapi3/issue794_test.go      | 15 +++++++++++++++
 openapi3/loader.go             |  3 +++
 openapi3/testdata/issue794.yml | 13 +++++++++++++
 3 files changed, 31 insertions(+)
 create mode 100644 openapi3/issue794_test.go
 create mode 100644 openapi3/testdata/issue794.yml

diff --git a/openapi3/issue794_test.go b/openapi3/issue794_test.go
new file mode 100644
index 000000000..4958d29d7
--- /dev/null
+++ b/openapi3/issue794_test.go
@@ -0,0 +1,15 @@
+package openapi3
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestCrashOnLoad(t *testing.T) {
+	loader := NewLoader()
+	doc, err := loader.LoadFromFile("testdata/issue794.yml")
+	require.NoError(t, err)
+	err = doc.Validate(loader.Context)
+	require.NoError(t, err)
+}
diff --git a/openapi3/loader.go b/openapi3/loader.go
index 4a14f67f0..3b50a64e4 100644
--- a/openapi3/loader.go
+++ b/openapi3/loader.go
@@ -615,6 +615,9 @@ func (loader *Loader) resolveRequestBodyRef(doc *T, component *RequestBodyRef, d
 	}
 
 	for _, contentType := range value.Content {
+		if contentType == nil {
+			continue
+		}
 		examples := make([]string, 0, len(contentType.Examples))
 		for name := range contentType.Examples {
 			examples = append(examples, name)
diff --git a/openapi3/testdata/issue794.yml b/openapi3/testdata/issue794.yml
new file mode 100644
index 000000000..3cd4dc776
--- /dev/null
+++ b/openapi3/testdata/issue794.yml
@@ -0,0 +1,13 @@
+openapi: 3.0.1
+info:
+  title: Swagger API
+  version: v1
+paths:
+  /test:
+    post:
+      requestBody:
+        content:
+          application/json:
+      responses:
+        "200":
+          description: description