Improves BechUtils performance.

benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/BechBenchmark.kt

@@ -0,0 +1,39 @@
+package com.vitorpamplona.amethyst.benchmark
+
+import androidx.benchmark.junit4.BenchmarkRule
+import androidx.benchmark.junit4.measureRepeated
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import com.vitorpamplona.quartz.encoders.Bech32
+import com.vitorpamplona.quartz.encoders.Hex
+import com.vitorpamplona.quartz.encoders.bechToBytes
+import com.vitorpamplona.quartz.encoders.toNpub
+import com.vitorpamplona.quartz.events.Event
+import junit.framework.TestCase.assertEquals
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+
+@RunWith(AndroidJUnit4::class)
+class BechBenchmark {
+
+    @get:Rule
+    val benchmarkRule = BenchmarkRule()
+
+    @Test
+    fun npubEncoding() {
+        val myUser = Hex.decode("460c25e682fda7832b52d1f22d3d22b3176d972f60dcdc3212ed8c92ef85065c")
+        benchmarkRule.measureRepeated {
+            assertEquals("npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z",myUser.toNpub())
+        }
+    }
+
+    @Test
+    fun npubDecoding() {
+        val myUser = "npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z"
+        val expected = listOf(70, 12, 37, -26, -126, -3, -89, -125, 43, 82, -47, -14, 45, 61, 34, -77, 23, 109, -105, 47, 96, -36, -36, 50, 18, -19, -116, -110, -17, -123, 6, 92).map { it.toByte() }
+        benchmarkRule.measureRepeated {
+            assertEquals(expected, myUser.bechToBytes().toList())
+        }
+    }
+
+}