✅ Add selectCalendar test

Author: oschrenk

Sources/Refine/FiltersBefore.swift

@@ -38,14 +38,17 @@ class FiltersBefore {
 
   static func selectCalendarTypes(types: [EKCalendarType]) -> ((EKEvent) -> Bool) {
     { event in
+      // if no selection, allow everything
+      if types.isEmpty {
+        return true
+      }
+
+      // if event has no valid calendar, don't show
       if event.calendar == nil {
         return false
       }
-      let id = event.calendar.type
-      if types.contains(id) {
-        return true
-      }
-      return false
+
+      return types.contains(event.calendar.type)
     }
   }
 

Tests/FiltersBeforeTest.swift

@@ -76,4 +76,28 @@ final class FiltersBeforeTests: XCTestCase {
 
     XCTAssertEqual(actual, expected, "The event was rejected")
   }
+
+  func testSelectCalendarTypesMatching() {
+    let event = genEKEvent(calendar: eventStore.defaultCalendarForNewEvents)
+    let expected = true
+    let actual = FiltersBefore.selectCalendarTypes(types: [event.calendar.type])(event)
+
+    XCTAssertEqual(actual, expected, "The event was rejected")
+  }
+
+  func testSelectCalendarTypesNotMatching() {
+    let event = genEKEvent(calendar: eventStore.defaultCalendarForNewEvents)
+    let expected = false
+    let actual = FiltersBefore.selectCalendarTypes(types: [EKCalendarType.birthday])(event)
+
+    XCTAssertEqual(actual, expected, "The event was accepted")
+  }
+
+  func testSelectCalendarTypesEmptyArray() {
+    let event = genEKEvent(calendar: eventStore.defaultCalendarForNewEvents)
+    let expected = true
+    let actual = FiltersBefore.selectCalendarTypes(types: [])(event)
+
+    XCTAssertEqual(actual, expected, "The event was rejected")
+  }
 }