Remove wifi/ScoringParams.hexDigest

Did not actually use this, so gc the method.

Bug: 79482323
Test: Unit tests
Change-Id: Ibdc44b7a5753b2670061958417eab0a737a8fc51

2 files changed, 1 insertions, 36 deletions

diff --git a/service/java/com/android/server/wifi/ScoringParams.java b/service/java/com/android/server/wifi/ScoringParams.java
index 6c42faf6b..8f68627b7 100644
--- a/service/java/com/android/server/wifi/ScoringParams.java
+++ b/service/java/com/android/server/wifi/ScoringParams.java
@@ -27,11 +27,6 @@ import android.util.Log;
 
 import com.android.internal.R;
 
-import libcore.util.HexEncoding;
-
-import java.security.MessageDigest;
-import java.security.NoSuchAlgorithmException;
-
 /**
  * Holds parameters used for scoring networks.
  *
@@ -391,17 +386,4 @@ public class ScoringParams {
     public String toString() {
         return mVal.toString();
     }
-
-    /**
-     * Calculates the SHA-256 digest of the scoring params, encoded in hex.
-     */
-    public String hexDigest() {
-        String digest = null;
-        try {
-            MessageDigest messageDigest = MessageDigest.getInstance("SHA-256");
-            messageDigest.update(mVal.toString().getBytes());
-            digest = HexEncoding.encodeToString(messageDigest.digest());
-        } catch (NoSuchAlgorithmException e) { }
-        return digest;
-    }
 }
diff --git a/tests/wifitests/src/com/android/server/wifi/ScoringParamsTest.java b/tests/wifitests/src/com/android/server/wifi/ScoringParamsTest.java
index fb7f868a7..56dca114a 100644
--- a/tests/wifitests/src/com/android/server/wifi/ScoringParamsTest.java
+++ b/tests/wifitests/src/com/android/server/wifi/ScoringParamsTest.java
@@ -102,18 +102,6 @@ public class ScoringParamsTest {
     }
 
     /**
-     * Test hexDigest
-     */
-    @Test
-    public void testHexDigest() throws Exception {
-        mScoringParams = new ScoringParams();
-        //hint: printf %s "$EXPECTED_DEFAULTS" | openssl dgst -hex -sha256
-        String expect = "BC3DB98DD8DD16C251FE9A0592444106B8FB09026D66558242196C7E81D1FAC2";
-        String actual = mScoringParams.hexDigest();
-        assertEquals(expect, actual);
-    }
-
-    /**
      * Test complete update
      */
     @Test
@@ -213,19 +201,14 @@ public class ScoringParamsTest {
     }
 
     /**
-     * Test that expid is hooked up, including effect on digest
+     * Test that expid is hooked up
      */
     @Test
     public void testExperimentIdentifier() throws Exception {
         mScoringParams = new ScoringParams();
-        String digestBefore = mScoringParams.hexDigest();
         assertEquals(0, mScoringParams.getExperimentIdentifier());
         assertTrue(mScoringParams.update("expid=99"));
         assertEquals(99, mScoringParams.getExperimentIdentifier());
-        String digestAfter = mScoringParams.hexDigest();
-        assertTrue(!digestBefore.equals(digestAfter));
-        assertTrue(mScoringParams.update("expid=0"));
-        assertEquals(digestBefore, mScoringParams.hexDigest());
     }
 
     /**