Merge pull request #87 from LeanBitLab/test-jsonutils-jsonstrtolist-1770694567185360950

🧪 Add test for JsonUtils.jsonStrToList

Author: LeanBitLab

app/src/test/java/helium314/keyboard/latin/utils/JsonUtilsTest.kt

@@ -0,0 +1,52 @@
+package helium314.keyboard.latin.utils
+
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertTrue
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.robolectric.RobolectricTestRunner
+
+@RunWith(RobolectricTestRunner::class)
+class JsonUtilsTest {
+
+    @Test
+    fun testJsonStrToList_validList() {
+        val jsonStr = "[{\"Integer\": 1}, {\"String\": \"hello\"}, {\"Integer\": 42}]"
+        val list = JsonUtils.jsonStrToList(jsonStr)
+
+        assertEquals(3, list.size)
+        assertEquals(1, list[0])
+        assertEquals("hello", list[1])
+        assertEquals(42, list[2])
+    }
+
+    @Test
+    fun testJsonStrToList_emptyString() {
+        val list = JsonUtils.jsonStrToList("")
+        assertTrue(list.isEmpty())
+    }
+
+    @Test
+    fun testJsonStrToList_emptyArray() {
+        val list = JsonUtils.jsonStrToList("[]")
+        assertTrue(list.isEmpty())
+    }
+
+    @Test
+    fun testJsonStrToList_invalidName() {
+        // Objects with invalid property names should be skipped gracefully.
+        val jsonStr = "[{\"Boolean\": true}, {\"Integer\": 123}]"
+        val list = JsonUtils.jsonStrToList(jsonStr)
+
+        assertEquals(1, list.size)
+        assertEquals(123, list[0])
+    }
+
+    @Test
+    fun testJsonStrToList_malformedJson() {
+        // A malformed JSON should result in returning an empty list without throwing an unhandled exception.
+        val jsonStr = "[malformed"
+        val list = JsonUtils.jsonStrToList(jsonStr)
+        assertTrue(list.isEmpty())
+    }
+}