From 757736612b01b08ea72fac1c1b48d79330a55205 Mon Sep 17 00:00:00 2001
From: Pavel Vojtechovsky <p.vojtechovsky@post.cz>
Date: Thu, 15 Jun 2017 19:58:56 +0200
Subject: [PATCH] test nulls in list

---
 .../java/spoon/test/replace/ReplaceTest.java  | 40 +++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/src/test/java/spoon/test/replace/ReplaceTest.java b/src/test/java/spoon/test/replace/ReplaceTest.java
index 636c9405586..78a01fa7d63 100644
--- a/src/test/java/spoon/test/replace/ReplaceTest.java
+++ b/src/test/java/spoon/test/replace/ReplaceTest.java
@@ -33,6 +33,7 @@
 import spoon.test.replace.testclasses.Mole;
 import spoon.test.replace.testclasses.Tacos;
 
+import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 
@@ -163,6 +164,45 @@ public void testReplaceStmtByList() {
 		assertEquals(2, ((CtBlock) sample.getMethod("retry").getBody().getStatement(0)).getStatements().size());
 	}
 
+	@Test
+	public void testReplaceStmtByListStatements() {
+		CtClass<?> sample = factory.Package().get("spoon.test.replace.testclasses")
+				.getType("Foo");
+
+		// replace retry content by statements
+		CtStatement stmt = sample.getMethod("retry").getBody().getStatement(0);
+		List<CtStatement> lst = sample.getMethod("statements").getBody().getStatements();
+
+		// replace a single statement by a statement list
+		stmt.replace(lst);
+
+		// we should have only 2 statements after (from the stmt list)
+		assertEquals(2, sample.getMethod("retry").getBody().getStatements().size());
+	}
+
+	@Test
+	public void testReplaceStmtByListStatementsAndNull() {
+		//contract: null elements in list are ignored
+		CtClass<?> sample = factory.Package().get("spoon.test.replace.testclasses")
+				.getType("Foo");
+
+		// replace retry content by statements
+		CtStatement stmt = sample.getMethod("retry").getBody().getStatement(0);
+		List<CtStatement> lst = sample.getMethod("statements").getBody().getStatements();
+		List<CtStatement> lstWithNulls = new ArrayList<>();
+		lstWithNulls.add(null);
+		lstWithNulls.add(lst.get(0));
+		lstWithNulls.add(null);
+		lstWithNulls.add(lst.get(1));
+		lstWithNulls.add(null);
+
+		// replace a single statement by a statement list
+		stmt.replace(lstWithNulls);
+
+		// we should have only 2 statements after (from the stmt list)
+		assertEquals(2, sample.getMethod("retry").getBody().getStatements().size());
+	}
+
 	@Test
 	public void testReplaceField() {
 		CtClass<?> sample = factory.Package().get("spoon.test.replace.testclasses")