End-to-end tests for unions

Author: kornilova203

tests/samples/Union.c

@@ -0,0 +1,8 @@
+#include "Union.h"
+#include <stdlib.h>
+
+union values *getValues() {
+    union values *myValues = malloc(sizeof(union values));
+    myValues->a = 10;
+    return myValues;
+}

tests/samples/Union.h

@@ -1,5 +1,7 @@
-union point {
+union values {
     long a;
     int b;
     long long c;
 };
+
+union values *getValues();

tests/samples/Union.scala

@@ -6,14 +6,15 @@ import scala.scalanative.native._
 @native.link("bindgentests")
 @native.extern
 object Union {
-  type union_point = native.CArray[Byte, native.Nat.Digit[native.Nat._6, native.Nat._4]]
+  type union_values = native.CArray[Byte, native.Nat.Digit[native.Nat._6, native.Nat._4]]
+  def getValues(): native.Ptr[union_values] = native.extern
 }
 
 import Union._
 
 object UnionHelpers {
 
-  implicit class union_point_pos(val p: native.Ptr[union_point]) extends AnyVal {
+  implicit class union_values_pos(val p: native.Ptr[union_values]) extends AnyVal {
     def a: native.Ptr[native.CLong] = p.cast[native.Ptr[native.CLong]]
     def a_=(value: native.CLong): Unit = !p.cast[native.Ptr[native.CLong]] = value
     def b: native.Ptr[native.CInt] = p.cast[native.Ptr[native.CInt]]

tests/samples/src/test/scala/org/scalanative/bindgen/samples/UnionTests.scala

@@ -0,0 +1,14 @@
+package org.scalanative.bindgen.samples
+
+import utest._
+import scala.scalanative.native._
+import org.scalanative.bindgen.samples.UnionHelpers._
+
+object UnionTests extends TestSuite {
+  val tests = Tests {
+    'getValues - {
+      val point = Union.getValues()
+      assert(point.a == 10)
+    }
+  }
+}