add: test for PasswordHashChecker

The last of the four assertions is intended to record the fact that we
don’t currently check the hash of a “simplified” (here: lowercased)
version of the password. We might want to do this in the future, but in
my opinion that should then be a deliberate decision, which includes
updating the test accordingly.

Change-Id: I1c8f45a7382bea96bbab80c6730179d55072fc8f

diff --git a/tests/club/wpia/gigi/passwords/TestPasswordHashChecker.java b/tests/club/wpia/gigi/passwords/TestPasswordHashChecker.java
new file mode 100644 (file)
index 0000000..b59bbb8
--- /dev/null
+++ b/tests/club/wpia/gigi/passwords/TestPasswordHashChecker.java
@@ -0,0 +1,38 @@
+package club.wpia.gigi.passwords;
+
+import java.io.IOException;
+import java.nio.channels.FileChannel;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.StandardOpenOption;
+import java.nio.ByteBuffer;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+
+import static org.junit.Assert.*;
+
+import org.junit.Test;
+
+import club.wpia.gigi.passwords.PasswordChecker;
+import club.wpia.gigi.passwords.PasswordHashChecker;
+import club.wpia.gigi.testUtils.ClientBusinessTest;
+
+public class TestPasswordHashChecker extends ClientBusinessTest {
+
+    @Test
+    public void testPasswordHashes() throws IOException, NoSuchAlgorithmException {
+        Path tempPath = Files.createTempFile("hashes", ".bin");
+        FileChannel tempFile = FileChannel.open(tempPath, StandardOpenOption.READ, StandardOpenOption.WRITE);
+        tempFile.write(ByteBuffer.wrap(new byte[] { (byte)0x5b, (byte)0xaa, (byte)0x61, (byte)0xe4, (byte)0xc9, (byte)0xb9, (byte)0x3f, (byte)0x3f, (byte)0x06, (byte)0x82, (byte)0x25, (byte)0x0b, (byte)0x6c, (byte)0xf8, (byte)0x33, (byte)0x1b, (byte)0x7e, (byte)0xe6, (byte)0x8f, (byte)0xd8 })); // hash of "password"
+        tempFile.write(ByteBuffer.wrap(new byte[] { (byte)0x8b, (byte)0xe3, (byte)0xc9, (byte)0x43, (byte)0xb1, (byte)0x60, (byte)0x9f, (byte)0xff, (byte)0xbf, (byte)0xc5, (byte)0x1a, (byte)0xad, (byte)0x66, (byte)0x6d, (byte)0x0a, (byte)0x04, (byte)0xad, (byte)0xf8, (byte)0x3c, (byte)0x9d })); // hash of "Password"
+        tempFile.write(ByteBuffer.wrap(new byte[] { (byte)0xab, (byte)0xf7, (byte)0xaa, (byte)0xd6, (byte)0x43, (byte)0x88, (byte)0x36, (byte)0xdb, (byte)0xe5, (byte)0x26, (byte)0xaa, (byte)0x23, (byte)0x1a, (byte)0xbd, (byte)0xe2, (byte)0xd0, (byte)0xee, (byte)0xf7, (byte)0x4d, (byte)0x42 })); // hash of "correct horse battery staple"
+
+        PasswordChecker checker = new PasswordHashChecker(tempFile, MessageDigest.getInstance("SHA-1"));
+
+        assertNotNull(checker.checkPassword("password", new String[0], ""));
+        assertNotNull(checker.checkPassword("Password", new String[0], ""));
+        assertNotNull(checker.checkPassword("correct horse battery staple", new String[0], ""));
+        assertNull(checker.checkPassword("Correct Horse Battery Staple", new String[0], ""));
+    }
+
+}