Fix: Markdown and Console renderer fail when processing range HTTP status code e. g. '2XX'

core/src/main/java/org/openapitools/openapidiff/core/output/ConsoleRender.java

@@ -118,7 +118,7 @@ private String ul_response(ChangedApiResponse changedApiResponse) {
   private String itemResponse(String title, String code) {
     StringBuilder sb = new StringBuilder();
     String status = "";
-    if (!code.equals("default")) {
+    if (!code.equals("default") && !code.matches("[1-5]XX")) {
       status = HttpStatus.getReasonPhrase(Integer.parseInt(code));
     }
     sb.append(StringUtils.repeat(' ', 4))

core/src/main/java/org/openapitools/openapidiff/core/output/MarkdownRender.java

@@ -158,7 +158,7 @@ protected String itemResponse(String code, ChangedResponse response) {
   protected String itemResponse(String title, String code, String description) {
     StringBuilder sb = new StringBuilder();
     String status = "";
-    if (!code.equals("default")) {
+    if (!code.equals("default") && !code.matches("[1-5]XX")) {
       status = HttpStatus.getReasonPhrase(Integer.parseInt(code));
     }
     sb.append(format("%s : **%s %s**\n", title, code, status));

core/src/test/java/org/openapitools/openapidiff/core/ConsoleRenderTest.java

@@ -14,4 +14,12 @@ public void renderDoesNotFailWhenPropertyHasBeenRemoved() {
         OpenApiCompare.fromLocations("missing_property_1.yaml", "missing_property_2.yaml");
     assertThat(render.render(diff)).isNotBlank();
   }
+
+  @Test
+  public void renderDoesNotFailWhenHTTPStatusCodeIsRange() {
+    ConsoleRender render = new ConsoleRender();
+    ChangedOpenApi diff =
+        OpenApiCompare.fromLocations("range_statuscode_1.yaml", "range_statuscode_2.yaml");
+    assertThat(render.render(diff)).isNotBlank();
+  }
 }

core/src/test/java/org/openapitools/openapidiff/core/MarkdownRenderTest.java

@@ -21,4 +21,12 @@ public void renderDoesNotCauseStackOverflowWithRecursiveDefinitions() {
     ChangedOpenApi diff = OpenApiCompare.fromLocations("recursive_old.yaml", "recursive_new.yaml");
     assertThat(render.render(diff)).isNotBlank();
   }
+
+  @Test
+  public void renderDoesNotFailWhenHTTPStatusCodeIsRange() {
+    MarkdownRender render = new MarkdownRender();
+    ChangedOpenApi diff =
+        OpenApiCompare.fromLocations("range_statuscode_1.yaml", "range_statuscode_2.yaml");
+    assertThat(render.render(diff)).isNotBlank();
+  }
 }

core/src/test/resources/range_statuscode_1.yaml

@@ -0,0 +1,10 @@
+openapi: 3.0.0
+info:
+  title: Projects API
+  version: 1.0.0
+paths:
+  /pet/:
+    get:
+      responses:
+        "405":
+          description: "Invalid input"

core/src/test/resources/range_statuscode_2.yaml

@@ -0,0 +1,10 @@
+openapi: 3.0.0
+info:
+  title: Projects API
+  version: 1.0.0
+paths:
+  /pet/:
+    get:
+      responses:
+        "4XX":
+          description: "Invalid input"