Test PrivateKeyProvider

cli/src/test/java/hudson/cli/PrivateKeyProviderTest.java

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+/*
+ * The MIT License
+ *
+ * Copyright (c) 2014 Red Hat, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package hudson.cli;
+
+import static org.mockito.Mockito.verify;
+import static org.powermock.api.mockito.PowerMockito.doReturn;
+import static org.powermock.api.mockito.PowerMockito.mock;
+import static org.powermock.api.mockito.PowerMockito.mockStatic;
+import static org.powermock.api.mockito.PowerMockito.whenNew;
+
+import java.io.File;
+import java.io.IOException;
+import java.net.URISyntaxException;
+import java.net.URL;
+import java.security.GeneralSecurityException;
+import java.security.Key;
+import java.security.KeyPair;
+import java.util.Arrays;
+
+import org.hamcrest.Description;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.ArgumentMatcher;
+import org.mockito.Mockito;
+import org.powermock.core.classloader.annotations.PrepareForTest;
+import org.powermock.modules.junit4.PowerMockRunner;
+
+@RunWith(PowerMockRunner.class)
+@PrepareForTest(CLI.class) // When mocking new operator caller has to be @PreparedForTest, not class itself
+public class PrivateKeyProviderTest {
+
+    @Test
+    public void specifyKeysExplicitly() throws Exception {
+        final CLI cli = fakeCLI();
+
+        final File dsaKey = keyFile(".ssh/id_dsa");
+        final File rsaKey = keyFile(".ssh/id_rsa");
+
+        run("-i", dsaKey.getAbsolutePath(), "-i", rsaKey.getAbsolutePath(), "-s", "http://example.com");
+
+        verify(cli).authenticate(withKeyPairs(
+                keyPair(dsaKey),
+                keyPair(rsaKey)
+        ));
+    }
+
+    @Test
+    public void useDefaultKeyLocations() throws Exception {
+        final CLI cli = fakeCLI();
+
+        final File rsaKey = keyFile(".ssh/id_rsa");
+        final File dsaKey = keyFile(".ssh/id_dsa");
+
+        fakeHome();
+        run("-s", "http://example.com");
+
+        verify(cli).authenticate(withKeyPairs(
+                keyPair(rsaKey),
+                keyPair(dsaKey)
+        ));
+    }
+
+    private CLI fakeCLI() throws Exception {
+        final CLI cli = mock(CLI.class);
+
+        final CLIConnectionFactory factory = mock(CLIConnectionFactory.class, Mockito.CALLS_REAL_METHODS);
+        factory.jenkins = new URL("http://example.com");
+        doReturn(cli).when(factory).connect();
+
+        mockStatic(CLIConnectionFactory.class);
+        whenNew(CLIConnectionFactory.class).withNoArguments().thenReturn(factory);
+
+        return cli;
+    }
+
+    private void fakeHome() throws URISyntaxException {
+        final File home = new File(this.getClass().getResource(".ssh").toURI()).getParentFile();
+        System.setProperty("user.home", home.getAbsolutePath());
+    }
+
+    private int run(String... args) throws Exception {
+        return CLI._main(args);
+    }
+
+    private File keyFile(String name) throws URISyntaxException {
+        return new File(this.getClass().getResource(name).toURI());
+    }
+
+    private KeyPair keyPair(File file) throws IOException, GeneralSecurityException {
+        return PrivateKeyProvider.loadKey(file, null);
+    }
+
+    private Iterable<KeyPair> withKeyPairs(final KeyPair... expected) {
+        return Mockito.argThat(new ArgumentMatcher<Iterable<KeyPair>>() {
+            @Override public void describeTo(Description description) {
+                description.appendText(Arrays.asList(expected).toString());
+            }
+
+            @Override public boolean matches(Object argument) {
+                if (!(argument instanceof Iterable)) throw new IllegalArgumentException("Not an instance of Iterrable");
+
+                @SuppressWarnings("unchecked")
+                final Iterable<KeyPair> actual = (Iterable<KeyPair>) argument;
+                int i = 0;
+                for (KeyPair akp: actual) {
+                    if (!eq(expected[i].getPublic(), akp.getPublic())) return false;
+                    if (!eq(expected[i].getPrivate(), akp.getPrivate())) return false;
+                    i++;
+                }
+
+                return i == expected.length;
+            }
+
+            private boolean eq(final Key expected, final Key actual) {
+                return Arrays.equals(expected.getEncoded(), actual.getEncoded());
+            }
+        });
+    }
+}