From 55115a5ca259787ce8d4deb7952d198f50591f92 Mon Sep 17 00:00:00 2001
From: HiFromAjay <kajay.jha@gmail.com>
Date: Fri, 11 Jun 2021 10:04:32 -0600
Subject: [PATCH] Test cases for testing the exceptional behavior of get,
 getAsBoolean, getAsDouble, getAsInt, getAsJsonArray, getAsJsonObject,
 getAsLong, and getAsString methods of JsonArray class. These test cases,
 which we wrote according to the specified behavior of each method, that
 helped us in identifying the documentation bugs in JsonArray and JsonElement
 classes, which we submitted issues for (Issue #1908). Note that we have
 adapted these test cases based on similar tests from the JSON-java project
 (https://github.com/stleary/JSON-java).

---
 .../java/com/google/gson/JsonArrayTest.java   | 64 +++++++++++++++++++
 1 file changed, 64 insertions(+)

diff --git a/gson/src/test/java/com/google/gson/JsonArrayTest.java b/gson/src/test/java/com/google/gson/JsonArrayTest.java
index b77d6f1b..7ad4f5de 100644
--- a/gson/src/test/java/com/google/gson/JsonArrayTest.java
+++ b/gson/src/test/java/com/google/gson/JsonArrayTest.java
@@ -20,6 +20,9 @@ import junit.framework.TestCase;
 
 import com.google.gson.common.MoreAsserts;
 
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
 /**
  * @author Jesse Wilson
  */
@@ -99,4 +102,65 @@ public final class JsonArrayTest extends TestCase {
     assertEquals(1, original.get(0).getAsJsonArray().size());
     assertEquals(0, copy.get(0).getAsJsonArray().size());
   }
+
+  public void testFailedGetArrayValues() {
+    String arrayStr = "[" + "true," + "false," + "\"true\"," + "\"false\"," + "\"hello\"," + "23.45e-4," + "\"23.45\"," + "42," + "\"43\"," + "[" + "\"world\"" + "]," + "{" + "\"key1\":\"value1\"," + "\"key2\":\"value2\"," + "\"key3\":\"value3\"," + "\"key4\":\"value4\"" + "}," + "0," + "\"-1\"" + "]";
+    JsonArray jsonArray = (JsonArray) JsonParser.parseString(arrayStr);
+    try {
+      jsonArray.get(10).getAsBoolean();
+      assertTrue("expected getBoolean to fail", false);
+    } catch (UnsupportedOperationException e) {
+      assertEquals("Expected an exception message",
+              "JsonObject",e.getMessage());
+    }
+    try {
+      jsonArray.get(-1);
+      assertTrue("expected get to fail", false);
+    } catch (IndexOutOfBoundsException e) {
+      assertEquals("Expected an exception message",
+              "Index -1 out of bounds for length 13",e.getMessage());
+    }
+    try {
+      jsonArray.get(4).getAsDouble();
+      assertTrue("expected getDouble to fail", false);
+    } catch (NumberFormatException e) {
+      assertEquals("Expected an exception message",
+              "For input string: \"hello\"",e.getMessage());
+    }
+    try {
+      jsonArray.get(4).getAsInt();
+      assertTrue("expected getInt to fail", false);
+    } catch (NumberFormatException e) {
+      assertEquals("Expected an exception message",
+              "For input string: \"hello\"",e.getMessage());
+    }
+    try {
+      jsonArray.get(4).getAsJsonArray();
+      assertTrue("expected getJSONArray to fail", false);
+    } catch (IllegalStateException e) {
+      assertEquals("Expected an exception message",
+              "Not a JSON Array: \"hello\"",e.getMessage());
+    }
+    try {
+      jsonArray.get(4).getAsJsonObject();
+      assertTrue("expected getJSONObject to fail", false);
+    } catch (IllegalStateException e) {
+      assertEquals("Expected an exception message",
+              "Not a JSON Object: \"hello\"",e.getMessage());
+    }
+    try {
+      jsonArray.get(4).getAsLong();
+      assertTrue("expected getLong to fail", false);
+    } catch (NumberFormatException e) {
+      assertEquals("Expected an exception message",
+              "For input string: \"hello\"",e.getMessage());
+    }
+    try {
+      jsonArray.get(10).getAsString();
+      assertTrue("expected getString to fail", false);
+    } catch (UnsupportedOperationException e) {
+      assertEquals("Expected an exception message",
+              "JsonObject",e.getMessage());
+    }
+  }
 }