[view_compiler] DexBuilder: add support for string literals and null pointers

Bug: 111895153
Change-Id: If6bdd9a280f6feed175be4da57733f3442e6dd14

1 files changed, 34 insertions, 0 deletions

diff --git a/startop/view_compiler/dex_builder_test/src/android/startop/test/DexBuilderTest.java b/startop/view_compiler/dex_builder_test/src/android/startop/test/DexBuilderTest.java
index 169c63374cb7..2ccdc6d5b4bf 100644
--- a/startop/view_compiler/dex_builder_test/src/android/startop/test/DexBuilderTest.java
+++ b/startop/view_compiler/dex_builder_test/src/android/startop/test/DexBuilderTest.java
@@ -82,4 +82,38 @@ public class DexBuilderTest {
     Method method = clazz.getMethod("backwardsBranch");
     Assert.assertEquals(2, method.invoke(null));
   }
+
+  @Test
+  public void returnNull() throws Exception {
+    ClassLoader loader = loadDexFile("simple.dex");
+    Class clazz = loader.loadClass("android.startop.test.testcases.SimpleTests");
+    Method method = clazz.getMethod("returnNull");
+    Assert.assertEquals(null, method.invoke(null));
+  }
+
+  @Test
+  public void makeString() throws Exception {
+    ClassLoader loader = loadDexFile("simple.dex");
+    Class clazz = loader.loadClass("android.startop.test.testcases.SimpleTests");
+    Method method = clazz.getMethod("makeString");
+    Assert.assertEquals("Hello, World!", method.invoke(null));
+  }
+
+  @Test
+  public void returnStringIfZeroAB() throws Exception {
+    ClassLoader loader = loadDexFile("simple.dex");
+    Class clazz = loader.loadClass("android.startop.test.testcases.SimpleTests");
+    Method method = clazz.getMethod("returnStringIfZeroAB", int.class);
+    Assert.assertEquals("a", method.invoke(null, 0));
+    Assert.assertEquals("b", method.invoke(null, 1));
+  }
+
+  @Test
+  public void returnStringIfZeroBA() throws Exception {
+    ClassLoader loader = loadDexFile("simple.dex");
+    Class clazz = loader.loadClass("android.startop.test.testcases.SimpleTests");
+    Method method = clazz.getMethod("returnStringIfZeroBA", int.class);
+    Assert.assertEquals("b", method.invoke(null, 0));
+    Assert.assertEquals("a", method.invoke(null, 1));
+  }
 }