diceware: add passphrase generator

1 files changed, 29 insertions, 0 deletions

diff --git a/passgen/diceware/src/test/kotlin/dev/msfjarvis/aps/passgen/diceware/DicewarePassphraseGeneratorTest.kt b/passgen/diceware/src/test/kotlin/dev/msfjarvis/aps/passgen/diceware/DicewarePassphraseGeneratorTest.kt
new file mode 100644
index 00000000..7f22fdcc
--- /dev/null
+++ b/passgen/diceware/src/test/kotlin/dev/msfjarvis/aps/passgen/diceware/DicewarePassphraseGeneratorTest.kt
@@ -0,0 +1,29 @@
+/*
+ * Copyright © 2014-2021 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+package dev.msfjarvis.aps.passgen.diceware
+
+import kotlin.random.Random
+import kotlin.test.assertEquals
+import org.junit.Test
+
+class DicewarePassphraseGeneratorTest {
+  /** Pre-seeded [Random] instance to ensure tests are deterministic. */
+  private val random = Random(1_00_000)
+
+  private val intGenerator = RandomIntGenerator { it.random(random) }
+  @Test
+  fun generate_passphrase() {
+    val die = Die(6, intGenerator)
+
+    val generator =
+      DicewarePassphraseGenerator(
+        die,
+        WordListParserTest.getDefaultWordList(),
+      )
+
+    assertEquals("salvation_cozily_croon_trustee_fidgety", generator.generatePassphrase(5, '_'))
+  }
+}