Add test for PasswordResponseProvider

src/test/java/com/hierynomus/sshj/userauth/method/PasswordResponseProviderTest.java

@@ -0,0 +1,109 @@
+package com.hierynomus.sshj.userauth.method;
+
+import net.schmizz.sshj.userauth.method.PasswordResponseProvider;
+import net.schmizz.sshj.userauth.password.AccountResource;
+import net.schmizz.sshj.userauth.password.PasswordFinder;
+import net.schmizz.sshj.userauth.password.Resource;
+import org.jetbrains.annotations.NotNull;
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.util.Collections;
+import java.util.regex.Pattern;
+
+public class PasswordResponseProviderTest {
+    private static final char[] PASSWORD = "the_password".toCharArray();
+    private static final AccountResource ACCOUNT_RESOURCE = new AccountResource("user", "host");
+
+    @Test
+    public void shouldMatchCommonPrompts() {
+        PasswordResponseProvider responseProvider = createDefaultResponseProvider(false);
+        shouldMatch(responseProvider, "Password: ");
+        shouldMatch(responseProvider, "password: ");
+        shouldMatch(responseProvider, "Password:");
+        shouldMatch(responseProvider, "password:");
+        shouldMatch(responseProvider, "user@host's Password: ");
+        shouldMatch(responseProvider, "user@host's password: ");
+        shouldMatch(responseProvider, "user@host's Password:");
+        shouldMatch(responseProvider, "user@host's password:");
+        shouldMatch(responseProvider, "user@host: Password: ");
+        shouldMatch(responseProvider, "(user@host) Password: ");
+        shouldMatch(responseProvider, "any prefix Password for user@host: ");
+        shouldMatch(responseProvider, "any prefix password for user@host: ");
+        shouldMatch(responseProvider, "any prefix Password for user@host:");
+        shouldMatch(responseProvider, "any prefix password for user@host:");
+    }
+
+    @Test
+    public void shouldNotMatchOtherPrompts() {
+        PasswordResponseProvider responseProvider = createDefaultResponseProvider(false);
+        shouldNotMatch(responseProvider, "Password");
+        shouldNotMatch(responseProvider, "password");
+        shouldNotMatch(responseProvider, "Password:  ");
+        shouldNotMatch(responseProvider, "password: suffix");
+        shouldNotMatch(responseProvider, "Password of user@host:");
+        shouldNotMatch(responseProvider, "");
+        shouldNotMatch(responseProvider, "password :");
+        shouldNotMatch(responseProvider, "something else");
+    }
+
+    @Test
+    public void shouldPassRetry() {
+        Assert.assertFalse(createDefaultResponseProvider(false).shouldRetry());
+        Assert.assertTrue(createDefaultResponseProvider(true).shouldRetry());
+    }
+
+    @Test
+    public void shouldHaveNoSubmethods() {
+        Assert.assertEquals(createDefaultResponseProvider(true).getSubmethods(), Collections.emptyList());
+    }
+
+    @Test
+    public void shouldWorkWithCustomPattern() {
+        PasswordFinder passwordFinder = new TestPasswordFinder(true);
+        PasswordResponseProvider responseProvider = new PasswordResponseProvider(passwordFinder, Pattern.compile(".*custom.*"));
+        responseProvider.init(ACCOUNT_RESOURCE, "name", "instruction");
+        shouldMatch(responseProvider, "prefix custom suffix: ");
+        shouldNotMatch(responseProvider, "something else");
+    }
+
+    private static void shouldMatch(PasswordResponseProvider responseProvider, String prompt) {
+        checkPrompt(responseProvider, prompt, PASSWORD);
+    }
+
+    private static void shouldNotMatch(PasswordResponseProvider responseProvider, String prompt) {
+        checkPrompt(responseProvider, prompt, new char[0]);
+    }
+
+    private static void checkPrompt(PasswordResponseProvider responseProvider, String prompt, char[] expected) {
+        Assert.assertArrayEquals("Prompt '" + prompt + "'", expected, responseProvider.getResponse(prompt, false));
+    }
+
+    @NotNull
+    private static PasswordResponseProvider createDefaultResponseProvider(final boolean shouldRetry) {
+        PasswordFinder passwordFinder = new TestPasswordFinder(shouldRetry);
+        PasswordResponseProvider responseProvider = new PasswordResponseProvider(passwordFinder);
+        responseProvider.init(ACCOUNT_RESOURCE, "name", "instruction");
+        return responseProvider;
+    }
+
+    private static class TestPasswordFinder implements PasswordFinder {
+        private final boolean shouldRetry;
+
+        public TestPasswordFinder(boolean shouldRetry) {
+            this.shouldRetry = shouldRetry;
+        }
+
+        @Override
+        public char[] reqPassword(Resource<?> resource) {
+            Assert.assertEquals(resource, ACCOUNT_RESOURCE);
+            return PASSWORD;
+        }
+
+        @Override
+        public boolean shouldRetry(Resource<?> resource) {
+            Assert.assertEquals(resource, ACCOUNT_RESOURCE);
+            return shouldRetry;
+        }
+    }
+}