From 51239b2652521ba914fee4ce35fd982d1bbe5486 Mon Sep 17 00:00:00 2001
From: Christopher Reitz <christopher.reitz@storecast.de>
Date: Tue, 4 Jul 2017 16:24:28 +0200
Subject: [PATCH] Add method to clear internal memory cache

---
 AwesomeCache/Cache.swift                  |  5 +++++
 AwesomeCacheTests/AwesomeCacheTests.swift | 16 ++++++++++++++++
 2 files changed, 21 insertions(+)

diff --git a/AwesomeCache/Cache.swift b/AwesomeCache/Cache.swift
index 6da0abd..74502ad 100644
--- a/AwesomeCache/Cache.swift
+++ b/AwesomeCache/Cache.swift
@@ -201,6 +201,11 @@ open class Cache<T: NSCoding> {
         }) 
     }
 
+    /// Removes all objects from memory (and keep them in disk cache).
+    open func removeAllObjectsFromMemory() {
+        cache.removeAllObjects()
+    }
+
     // MARK: Subscripting
 
     open subscript(key: String) -> T? {
diff --git a/AwesomeCacheTests/AwesomeCacheTests.swift b/AwesomeCacheTests/AwesomeCacheTests.swift
index 4f450c2..abb6b7e 100644
--- a/AwesomeCacheTests/AwesomeCacheTests.swift
+++ b/AwesomeCacheTests/AwesomeCacheTests.swift
@@ -64,6 +64,22 @@ class AwesomeCacheTests: XCTestCase {
         XCTAssertNil(cache.object(forKey: "remove 2"), "Removed object should be nil")
     }
 
+    func testRemoveAllObjectsFromMemory() {
+        let cache = try! Cache<NSString>(name: "testRemoveAllObjectsFromMemory")
+
+        cache.setObject("AddedString 1", forKey: "remove only from memory 1")
+        cache.setObject("AddedString 2", forKey: "remove only from memory 2")
+        XCTAssertNotNil(cache.object(forKey: "remove only from memory 1"), "Added object should not be nil")
+        XCTAssertNotNil(cache.object(forKey: "remove only from memory 2"), "Added object should not be nil")
+
+        cache.removeAllObjectsFromMemory()
+        XCTAssertNotNil(cache.object(forKey: "remove only from memory 1"), "Removed object should not be nil")
+        XCTAssertNotNil(cache.object(forKey: "remove only from memory 2"), "Removed object should not be nil")
+
+        XCTAssertNil(cache.cache.object(forKey: "remove only from memory 1"), "Removed object should be nil in NSCache")
+        XCTAssertNil(cache.cache.object(forKey: "remove only from memory 2"), "Removed object should be nil in NSCache")
+    }
+
     func testRemoveExpiredObjects() {
         let cache = try! Cache<NSString>(name: "testRemoveExpiredObjects")