From fa69dcf65f3d298034545249caa277fb0ef25efe Mon Sep 17 00:00:00 2001
From: Rick Ossendrijver <rick.ossies@hotmail.com>
Date: Thu, 25 Nov 2021 15:37:33 +0100
Subject: [PATCH] Improve tests by using `ExecutorService#submit` to
 demonstrate inlining type arguments

---
 ...ypeArgumentsMethodInvocationTemplateExample.java | 10 +++++++---
 ...ypeArgumentsMethodInvocationTemplateExample.java | 10 +++++++---
 .../TypeArgumentsMethodInvocationTemplate.java      | 13 ++++++++-----
 3 files changed, 22 insertions(+), 11 deletions(-)

diff --git a/core/src/test/java/com/google/errorprone/refaster/testdata/input/TypeArgumentsMethodInvocationTemplateExample.java b/core/src/test/java/com/google/errorprone/refaster/testdata/input/TypeArgumentsMethodInvocationTemplateExample.java
index 9f43ca040f16..4a2c119556f3 100644
--- a/core/src/test/java/com/google/errorprone/refaster/testdata/input/TypeArgumentsMethodInvocationTemplateExample.java
+++ b/core/src/test/java/com/google/errorprone/refaster/testdata/input/TypeArgumentsMethodInvocationTemplateExample.java
@@ -14,10 +14,14 @@
 
 package com.google.errorprone.refaster.testdata;
 
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Future;
+
 /** Test data for {@code TypeArgumentsMethodInvocationTemplate}. */
 public class TypeArgumentsMethodInvocationTemplateExample {
-  public boolean example() {
-    String s = "";
-    return s.isEmpty();
+  public Future<Object> example() {
+    ExecutorService executorService = Executors.newSingleThreadExecutor();
+    return executorService.submit(() -> new Object());
   }
 }
diff --git a/core/src/test/java/com/google/errorprone/refaster/testdata/output/TypeArgumentsMethodInvocationTemplateExample.java b/core/src/test/java/com/google/errorprone/refaster/testdata/output/TypeArgumentsMethodInvocationTemplateExample.java
index 28630cc6b53e..629f40086fd9 100644
--- a/core/src/test/java/com/google/errorprone/refaster/testdata/output/TypeArgumentsMethodInvocationTemplateExample.java
+++ b/core/src/test/java/com/google/errorprone/refaster/testdata/output/TypeArgumentsMethodInvocationTemplateExample.java
@@ -14,10 +14,14 @@
 
 package com.google.errorprone.refaster.testdata;
 
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Future;
+
 /** Test data for {@code TypeArgumentsMethodInvocationTemplate}. */
 public class TypeArgumentsMethodInvocationTemplateExample {
-  public boolean example() {
-    String s = "";
-    return s.<String>isEmpty();
+  public Future<Object> example() {
+    ExecutorService executorService = Executors.newSingleThreadExecutor();
+    return executorService.<Object>submit(() -> new Object());
   }
 }
diff --git a/core/src/test/java/com/google/errorprone/refaster/testdata/template/TypeArgumentsMethodInvocationTemplate.java b/core/src/test/java/com/google/errorprone/refaster/testdata/template/TypeArgumentsMethodInvocationTemplate.java
index 33d2f1868257..4243f7d8d946 100644
--- a/core/src/test/java/com/google/errorprone/refaster/testdata/template/TypeArgumentsMethodInvocationTemplate.java
+++ b/core/src/test/java/com/google/errorprone/refaster/testdata/template/TypeArgumentsMethodInvocationTemplate.java
@@ -18,16 +18,19 @@
 
 import com.google.errorprone.refaster.annotation.AfterTemplate;
 import com.google.errorprone.refaster.annotation.BeforeTemplate;
+import java.util.concurrent.Callable;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Future;
 
 /** Sample template for introducing type arguments on a method invocation in an @AfterTemplate. */
-public class TypeArgumentsMethodInvocationTemplate {
+public class TypeArgumentsMethodInvocationTemplate<T> {
   @BeforeTemplate
-  boolean before(String string) {
-    return string.isEmpty();
+  Future<T> before(ExecutorService executorService, Callable<T> callable) {
+    return executorService.submit(callable);
   }
 
   @AfterTemplate
-  boolean after(String string) {
-    return string.<String>isEmpty();
+  Future<T> after(ExecutorService executorService, Callable<T> callable) {
+    return executorService.<T>submit(callable);
   }
 }