Add WIP test for this capture in lambdas

2 files changed, 34 insertions, 0 deletions

diff --git a/src/test/java/org/zwobble/couscous/tests/CompilerTests.java b/src/test/java/org/zwobble/couscous/tests/CompilerTests.java
index b5e0d82..56d989c 100644
--- a/src/test/java/org/zwobble/couscous/tests/CompilerTests.java
+++ b/src/test/java/org/zwobble/couscous/tests/CompilerTests.java
@@ -1,5 +1,6 @@
 package org.zwobble.couscous.tests;
 
+import org.junit.Ignore;
 import org.junit.Test;
 import org.zwobble.couscous.ast.TypeName;
 import org.zwobble.couscous.values.PrimitiveValue;
@@ -13,6 +14,7 @@ import java.nio.file.Path;
 import java.util.List;
 
 import static java.util.Arrays.asList;
+import static java.util.Collections.emptyList;
 import static org.junit.Assert.assertEquals;
 import static org.zwobble.couscous.tests.util.ExtraFiles.deleteRecursively;
 import static org.zwobble.couscous.values.PrimitiveValues.value;
@@ -121,6 +123,18 @@ public abstract class CompilerTests {
                 asList(value(2))));
     }
 
+    @Test
+    @Ignore("WIP")
+    public void lambdasWithThisCapture() throws Exception {
+        assertEquals(
+            value(42),
+            execTestProgram(
+                "lambda-this-capture",
+                TypeName.of("com.example.Lambda"),
+                "value",
+                asList(value(2))));
+    }
+
     private PrimitiveValue execTestProgram(
         String directoryName,
         TypeName type,
diff --git a/src/test/resources/java/lambda-this-capture/com/example/Lambda.java b/src/test/resources/java/lambda-this-capture/com/example/Lambda.java
new file mode 100644
index 0000000..b4aadbf
--- /dev/null
+++ b/src/test/resources/java/lambda-this-capture/com/example/Lambda.java
@@ -0,0 +1,20 @@
+package com.example;
+
+import java.util.function.Function;
+
+public class Lambda {
+    public static int value(int factor) {
+        return new Lambda(factor).run();
+    }
+    
+    private final int factor;
+    
+    private Lambda(int factor) {
+        this.factor = factor;
+    }
+    
+    private int run() {
+        Function<Integer, Integer> function = value -> value * factor;
+        return function.apply(21);
+    }
+}