From: David ‘Bombe’ Roden <bombe@pterodactylus.net>
Date: Wed, 13 Nov 2013 21:15:37 +0000 (+0100)
Subject: Add matchers for iterators.
X-Git-Url: https://git.pterodactylus.net/?p=Sone.git;a=commitdiff_plain;h=c54ff0e71fd2e97202ab800b9d3b6e35478f819b

Add matchers for iterators.
---

diff --git a/src/test/java/net/pterodactylus/sone/Matchers.java b/src/test/java/net/pterodactylus/sone/Matchers.java
index 4bf7aa5..c08ffb1 100644
--- a/src/test/java/net/pterodactylus/sone/Matchers.java
+++ b/src/test/java/net/pterodactylus/sone/Matchers.java
@@ -17,8 +17,15 @@
 
 package net.pterodactylus.sone;
 
+import static java.util.Arrays.asList;
 import static java.util.regex.Pattern.compile;
 
+import java.util.Collection;
+import java.util.Iterator;
+import java.util.List;
+
+import com.google.common.base.Objects;
+import com.google.common.collect.Lists;
 import org.hamcrest.Description;
 import org.hamcrest.Matcher;
 import org.hamcrest.TypeSafeMatcher;
@@ -44,4 +51,65 @@ public class Matchers {
 		};
 	}
 
+	public static <T> Matcher<Iterator<T>> contains(T... items) {
+		return contains(asList(items));
+	}
+
+	public static <T> Matcher<Iterator<T>> contains(final Collection<T> items) {
+		return new TypeSafeMatcher<Iterator<T>>() {
+			@Override
+			protected boolean matchesSafely(Iterator<T> iterator) {
+				for (T item : items) {
+					if (!iterator.hasNext()) {
+						return false;
+					}
+					T nextItem = iterator.next();
+					if (!Objects.equal(item, nextItem)) {
+						return false;
+					}
+				}
+				if (iterator.hasNext()) {
+					return false;
+				}
+				return true;
+			}
+
+			@Override
+			public void describeTo(Description description) {
+				description.appendText("contains ").appendValue(items);
+			}
+		};
+	}
+
+	public static <T> Matcher<Iterator<T>> containsInAnyOrder(T... items) {
+		return containsInAnyOrder(asList(items));
+	}
+
+	public static <T> Matcher<Iterator<T>> containsInAnyOrder(final Collection<T> items) {
+		return new TypeSafeMatcher<Iterator<T>>() {
+			private final List<T> remainingItems = Lists.newArrayList(items);
+			@Override
+			protected boolean matchesSafely(Iterator<T> iterator) {
+				while (iterator.hasNext()) {
+					T item = iterator.next();
+					if (remainingItems.isEmpty()) {
+						return false;
+					}
+					if (!remainingItems.remove(item)) {
+						return false;
+					}
+				}
+				if (!remainingItems.isEmpty()) {
+					return false;
+				}
+				return true;
+			}
+
+			@Override
+			public void describeTo(Description description) {
+				description.appendText("contains ").appendValue(items);
+			}
+		};
+	}
+
 }