add filter coding tests

app/src/main/java/net/pokeranalytics/android/model/filter/FilterComponent.kt

@@ -0,0 +1,5 @@
+package net.pokeranalytics.android.model.filter
+
+enum class FilterComponent {
+
+}

app/src/main/java/net/pokeranalytics/android/model/filter/Filterable.kt

@@ -0,0 +1,29 @@
+package net.pokeranalytics.android.model.filter
+
+import io.realm.RealmObject
+import io.realm.RealmResults
+
+interface Filterable {
+
+}
+
+class FilterManager {
+
+    fun test(realmResults: RealmResults<RealmObject>) {
+        realmResults.where().greaterThan("test", 5).findAll()
+    }
+}
+
+fun MutableList<Filterable>.filter(filter: FilterComponent) : List<Filterable> {
+
+    return this.filter { f ->
+        return@filter true
+    }
+}
+
+
+// doesnt compile: Class "FilterableRealmObject" must contain at least 1 persistable field.
+
+//class FilterableRealmObject : RealmObject(), Filterable {
+//
+//}