Added test for max distance on editDistance().

Fixes: 132202845
Test: atest android.ext.services.autofill.EditDistanceScorerTest
Change-Id: Ib87e372703c5ce72a09f7974f8477c4022813d9b

2 files changed, 7 insertions, 3 deletions

diff --git a/packages/ExtServices/src/android/ext/services/autofill/EditDistanceScorer.java b/packages/ExtServices/src/android/ext/services/autofill/EditDistanceScorer.java
index 6a47901aa58e..196257162058 100644
--- a/packages/ExtServices/src/android/ext/services/autofill/EditDistanceScorer.java
+++ b/packages/ExtServices/src/android/ext/services/autofill/EditDistanceScorer.java
@@ -83,7 +83,7 @@ final class EditDistanceScorer {
      *     the edit distance is at least as big as the {@code max} parameter
      */
     // Note: copied verbatim from com.android.tools.lint.detector.api.LintUtils.java
-    private static int editDistance(@NonNull String s, @NonNull String t, int max) {
+    public static int editDistance(@NonNull String s, @NonNull String t, int max) {
         if (s.equals(t)) {
             return 0;
         }
diff --git a/packages/ExtServices/tests/src/android/ext/services/autofill/EditDistanceScorerTest.java b/packages/ExtServices/tests/src/android/ext/services/autofill/EditDistanceScorerTest.java
index 9b9d4be59929..3d754f7fa9d9 100644
--- a/packages/ExtServices/tests/src/android/ext/services/autofill/EditDistanceScorerTest.java
+++ b/packages/ExtServices/tests/src/android/ext/services/autofill/EditDistanceScorerTest.java
@@ -16,6 +16,7 @@
 package android.ext.services.autofill;
 
 import static android.ext.services.autofill.EditDistanceScorer.calculateScore;
+import static android.ext.services.autofill.EditDistanceScorer.editDistance;
 
 import static com.google.common.truth.Truth.assertThat;
 
@@ -73,9 +74,12 @@ public class EditDistanceScorerTest {
         assertFloat(calculateScore(AutofillValue.forText("DUDx"), "Dude"), 0.75F);
     }
 
+    @Test
+    public void testEditDistance_maxDistance() {
+        assertFloat(editDistance("testing", "b", 4), Integer.MAX_VALUE);
+    }
+
     public static void assertFloat(float actualValue, float expectedValue) {
         assertThat(actualValue).isWithin(0.01F).of(expectedValue);
     }
-
-
 }