Add basic email address validator.

Change-Id: Ia38d3a8f19f12e21bc2d933c4411cc5e886e74ab
Reviewed-on: http://gerrit.dmdirc.com/3599
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Chris Smith <chris@dmdirc.com>

src/com/dmdirc/util/validators/EmailAddressValidator.java

@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2006-2014 DMDirc Developers
+ *
+ * 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 com.dmdirc.util.validators;
+
+public class EmailAddressValidator extends RegexStringValidator {
+
+    public EmailAddressValidator() {
+        super("[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,}",
+                "Must be a valid email address");
+    }
+}

test/com/dmdirc/util/validators/EmailAddressValidatorTest.java

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+/*
+ * Copyright (c) 2006-2014 DMDirc Developers
+ *
+ * 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 com.dmdirc.util.validators;
+
+import java.util.Arrays;
+import java.util.Collection;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+import org.junit.runners.Parameterized.Parameters;
+
+import static org.junit.Assert.assertEquals;
+
+@RunWith(Parameterized.class)
+public class EmailAddressValidatorTest {
+
+    @Parameters
+    public static Collection<Object[]> data() {
+        return Arrays.asList(new Object[][]{
+            {"email@example.com", true},
+            {"firstname.lastname@example.com", true},
+            {"email@subdomain.example.com", true},
+            {"firstname+lastname@example.com", true},
+            {"1234567890@example.com", true},
+            {"email@example-one.com", true},
+            {"_______@example.com", true},
+            {"email@example.name", true},
+            {"email@example.museum", true},
+            {"email@example.co.jp", true},
+            {"firstname-lastname@example.com", true},
+            {"plainaddress", false},
+            {"#@%^%#$@#$@#.com", false},
+            {"@example.com", false},
+            {"Foo Bar <email@example.com>", false},
+            {"email.example.com", false},
+            {"email@example@example.com", false},
+            {"?????@example.com", false},
+            {"email@example.com (Foo Bar)", false},
+            {"email@example", false},});
+    }
+
+    private String input;
+
+    private boolean expected;
+
+    public EmailAddressValidatorTest(final String input, boolean expected) {
+        this.input = input;
+        this.expected = expected;
+    }
+
+    @Test
+    public void test() {
+        final EmailAddressValidator instance = new EmailAddressValidator();
+        assertEquals(expected, !instance.validate(input).isFailure());
+    }
+}