Add new SERP variants and enable them (#1353)

Author: marcosholgado

app/src/androidTest/java/com/duckduckgo/app/statistics/VariantManagerTest.kt

@@ -42,6 +42,20 @@ class VariantManagerTest {
         assertEquals(0, variant.features.size)
     }
 
+    @Test
+    fun serpGxControlVariantHasExpectedWeightAndNoFeatures() {
+        val variant = variants.first { it.key == "gx" }
+        assertEqualsDouble(0.1, variant.weight)
+        assertEquals(0, variant.features.size)
+    }
+
+    @Test
+    fun serpGyExperimentalVariantHasExpectedWeightAndNoFeatures() {
+        val variant = variants.first { it.key == "gy" }
+        assertEqualsDouble(0.1, variant.weight)
+        assertEquals(0, variant.features.size)
+    }
+
     @Test
     fun verifyNoDuplicateVariantNames() {
         val existingNames = mutableSetOf<String>()

statistics/src/main/java/com/duckduckgo/app/statistics/VariantManager.kt

@@ -41,6 +41,8 @@ interface VariantManager {
             // the future if we can filter by app version
             Variant(key = "sc", weight = 0.0, features = emptyList(), filterBy = { isSerpRegionToggleCountry() }),
             Variant(key = "se", weight = 0.0, features = emptyList(), filterBy = { isSerpRegionToggleCountry() }),
+            Variant(key = "gx", weight = 0.1, features = emptyList(), filterBy = { noFilter() }),
+            Variant(key = "gy", weight = 0.1, features = emptyList(), filterBy = { noFilter() }),
         )
 
         val REFERRER_VARIANTS = listOf(