Add WIP test for interfaces

3 files changed, 33 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 f03f6ce..7d4a842 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.BooleanValue;
@@ -87,6 +88,19 @@ public abstract class CompilerTests {
     }
 
     @Test
+    @Ignore("WIP")
+    public void canImplementUserDefinedInterface() throws Exception {
+        assertEquals(
+            value(42),
+            execTestProgram(
+                "implement-user-interface",
+                TypeName.of("com.example.ConstantIntSupplier"),
+                "value",
+                list(),
+                IntegerValue.REF));
+    }
+
+    @Test
     public void anonymousClassesWithoutCapture() throws Exception {
         assertEquals(
             value(42),
diff --git a/src/test/resources/java/implement-user-interface/com/example/ConstantIntSupplier.java b/src/test/resources/java/implement-user-interface/com/example/ConstantIntSupplier.java
new file mode 100644
index 0000000..5198d61
--- /dev/null
+++ b/src/test/resources/java/implement-user-interface/com/example/ConstantIntSupplier.java
@@ -0,0 +1,14 @@
+package com.example;
+
+import java.util.function.Supplier;
+
+public class ConstantIntSupplier implements IntSupplier {
+    public static int value() {
+        IntSupplier supplier = new ConstantIntSupplier();
+        return supplier.get();
+    }
+    
+    public int get() {
+        return 42;
+    }
+}
diff --git a/src/test/resources/java/implement-user-interface/com/example/IntSupplier.java b/src/test/resources/java/implement-user-interface/com/example/IntSupplier.java
new file mode 100644
index 0000000..4c5e5a5
--- /dev/null
+++ b/src/test/resources/java/implement-user-interface/com/example/IntSupplier.java
@@ -0,0 +1,5 @@
+package com.example;
+
+public interface IntSupplier {
+    int get();
+}