Added unit test for MultipleChoiceItem

ground/src/test/java/com/google/android/ground/ui/datacollection/tasks/multiplechoice/MultipleChoiceItemTest.kt

@@ -0,0 +1,69 @@
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.android.ground.ui.datacollection.tasks.multiplechoice
+
+import com.google.android.ground.BaseHiltTest
+import com.google.android.ground.model.task.MultipleChoice.Cardinality
+import com.google.android.ground.model.task.Option
+import com.google.common.truth.Truth.assertThat
+import dagger.hilt.android.testing.HiltAndroidTest
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.robolectric.RobolectricTestRunner
+
+@HiltAndroidTest
+@RunWith(RobolectricTestRunner::class)
+class MultipleChoiceItemTest : BaseHiltTest() {
+
+  private val multipleChoiceItemOne =
+    MultipleChoiceItem(
+      option = Option(id = "id", code = "code", label = "label"),
+      cardinality = Cardinality.SELECT_ONE,
+    )
+
+  private val multipleChoiceItemMultiple =
+    MultipleChoiceItem(
+      option = Option(id = "id", code = "code", label = "label"),
+      cardinality = Cardinality.SELECT_MULTIPLE,
+    )
+
+  private val multipleChoiceItemOneId =
+    MultipleChoiceItem(
+      option = Option(id = "new id", code = "code", label = "label"),
+      isSelected = true,
+      cardinality = Cardinality.SELECT_MULTIPLE,
+    )
+
+  @Test
+  fun `isTheSameItem returns true when IDs are the same`() {
+    assertThat(multipleChoiceItemOne.isTheSameItem(multipleChoiceItemMultiple)).isEqualTo(true)
+  }
+
+  @Test
+  fun `isTheSameItem returns false when IDs are not same`() {
+    assertThat(multipleChoiceItemOne.isTheSameItem(multipleChoiceItemOneId)).isEqualTo(false)
+  }
+
+  @Test
+  fun `areContentsTheSame returns true when isSelected is same`() {
+    assertThat(multipleChoiceItemOne.areContentsTheSame(multipleChoiceItemMultiple)).isEqualTo(true)
+  }
+
+  @Test
+  fun `areContentsTheSame returns false when isSelected is not same`() {
+    assertThat(multipleChoiceItemOne.areContentsTheSame(multipleChoiceItemOneId)).isEqualTo(false)
+  }
+}