DEV-4156: adjust blank search

personalization-sdk/src/main/kotlin/com/personalization/api/responses/search/PopularItem.kt

@@ -0,0 +1,10 @@
+package com.personalization.api.responses.search
+
+import com.google.gson.annotations.SerializedName
+
+data class PopularItem(
+    @SerializedName("name")
+    val name: String,
+    @SerializedName("url")
+    val url: String
+)

personalization-sdk/src/main/kotlin/com/personalization/api/responses/search/SearchBlankResponse.kt

@@ -9,5 +9,11 @@ data class SearchBlankResponse(
     @SerializedName("products")
     val products: List<Product>,
     @SerializedName("suggests")
-    val suggests: List<Suggest>
+    val suggests: List<Suggest>,
+    @SerializedName("popular_categories")
+    val popularCategories: List<PopularItem>?,
+    @SerializedName("popular_brands")
+    val popularBrands: List<PopularItem>?,
+    @SerializedName("popular_links")
+    val popularLinks: List<PopularItem>?
 )

personalization-sdk/src/test/kotlin/com/personalization/features/search/SearchBlankResponseParsingTest.kt

@@ -0,0 +1,49 @@
+package com.personalization.features.search
+
+import com.google.gson.Gson
+import com.personalization.api.responses.search.SearchBlankResponse
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNull
+import org.junit.Test
+
+class SearchBlankResponseParsingTest {
+
+    private val gson = Gson()
+
+    private val json = """
+        {
+            "html": "",
+            "products": [],
+            "suggests": [],
+            "popular_categories": [{"name": "Электроника", "url": "/electronics"}],
+            "popular_brands": [{"name": "Samsung", "url": "/samsung"}],
+            "popular_links": [{"name": "Блог", "url": "/blog"}, {"name": "Кейсы", "url": "/cases"}]
+        }
+    """.trimIndent()
+
+    @Test
+    fun `popular fields are parsed from JSON`() {
+        val response = gson.fromJson(json, SearchBlankResponse::class.java)
+
+        assertEquals(1, response.popularCategories!!.size)
+        assertEquals("Электроника", response.popularCategories!![0].name)
+        assertEquals("/electronics", response.popularCategories!![0].url)
+
+        assertEquals(1, response.popularBrands!!.size)
+        assertEquals("Samsung", response.popularBrands!![0].name)
+
+        assertEquals(2, response.popularLinks!!.size)
+        assertEquals("Блог", response.popularLinks!![0].name)
+        assertEquals("Кейсы", response.popularLinks!![1].name)
+    }
+
+    @Test
+    fun `missing popular fields default to empty list`() {
+        val minimalJson = """{"html": "", "products": [], "suggests": []}"""
+        val response = gson.fromJson(minimalJson, SearchBlankResponse::class.java)
+
+        assertNull(response.popularCategories)
+        assertNull(response.popularBrands)
+        assertNull(response.popularLinks)
+    }
+}