From ac9f380c55b8ed14015a6abdb724e4cde057cad3 Mon Sep 17 00:00:00 2001
From: Madhura Bhave <mbhave@pivotal.io>
Date: Wed, 26 Apr 2017 15:15:31 -0700
Subject: [PATCH] Test binding of Set

Add a test to ensure that the new binder can bind correctly to a
Set.

Closes gh-1415
---
 .../properties/bind/CollectionBinderTests.java     | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/spring-boot/src/test/java/org/springframework/boot/context/properties/bind/CollectionBinderTests.java b/spring-boot/src/test/java/org/springframework/boot/context/properties/bind/CollectionBinderTests.java
index 9fbef4922e0..5fc7f64f7b2 100644
--- a/spring-boot/src/test/java/org/springframework/boot/context/properties/bind/CollectionBinderTests.java
+++ b/spring-boot/src/test/java/org/springframework/boot/context/properties/bind/CollectionBinderTests.java
@@ -48,6 +48,9 @@ public class CollectionBinderTests {
 	private static final Bindable<List<String>> STRING_LIST = Bindable
 			.listOf(String.class);
 
+	private static final Bindable<Set<String>> STRING_SET = Bindable
+			.setOf(String.class);
+
 	private List<ConfigurationPropertySource> sources = new ArrayList<>();
 
 	private Binder binder;
@@ -68,6 +71,17 @@ public class CollectionBinderTests {
 		assertThat(result).containsExactly(1, 2, 3);
 	}
 
+	@Test
+	public void bindToSetShouldReturnPopulatedCollection() throws Exception {
+		MockConfigurationPropertySource source = new MockConfigurationPropertySource();
+		source.put("foo[0]", "a");
+		source.put("foo[1]", "b");
+		source.put("foo[2]", "c");
+		this.sources.add(source);
+		Set<String> result = this.binder.bind("foo", STRING_SET).get();
+		assertThat(result).containsExactly("a", "b", "c");
+	}
+
 	@Test
 	public void bindToCollectionWhenNestedShouldReturnPopulatedCollection()
 			throws Exception {