fix: add remove to context cache #102

We don't need a cached instance after we created an object.

Author: akutschera

src/main/java/com/github/nylle/javafixture/Context.java

@@ -53,5 +53,9 @@ public <T> T preDefined(SpecimenType<T> type, T instance) {
         return cache.containsKey(type) ? (T) cache.get(type) : instance;
     }
 
+    public <T> T remove(SpecimenType<T> type) {
+        return (T) cache.remove(type);
+    }
+
 }
 

src/test/java/com/github/nylle/javafixture/ContextTest.java

@@ -1,5 +1,7 @@
 package com.github.nylle.javafixture;
 
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Nested;
 import org.junit.jupiter.api.Test;
 
 import static org.assertj.core.api.Assertions.assertThat;
@@ -56,6 +58,40 @@ void overwriteWillRemovePreviousValue() {
 
     }
 
+    @DisplayName("remove")
+    @Nested
+    class RemoveTest {
+
+        @DisplayName("will return null if type was not in cache")
+        @Test
+        void removeWillReturnNull() {
+            var sut = new Context(new Configuration());
+
+            var actual = sut.remove(new SpecimenType<>() {});
+
+            assertThat(actual).isNull();
+
+        }
+
+        @DisplayName("will return instance from cache if type was in cache")
+        @Test
+        void returnCacheInstance() {
+            var sut = new Context(new Configuration());
+            var specimenType = new SpecimenType<>() {};
+            var object = new Object();
+
+            sut.cached(specimenType, object);
+
+            assertThat(sut.isCached(specimenType)).isTrue();
+
+            var actual = sut.remove(specimenType);
+
+            assertThat(actual).isSameAs(object);
+            assertThat(sut.isCached(specimenType)).isFalse();
+
+        }
+    }
+
     class TestObject {
         private final String value;