@@ -0,0 +1,1834 @@
+/*%0A * Copyright 2017, TeamDev Ltd. All rights reserved.%0A *%0A * Redistribution and use in source and/or binary forms, with or without%0A * modification, must retain the above copyright notice and the following%0A * disclaimer.%0A *%0A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS%0A * %22AS IS%22 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT%0A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR%0A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT%0A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,%0A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT%0A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,%0A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY%0A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT%0A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE%0A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.%0A */%0A%0Apackage io.spine.tools;%0A%0Aimport com.google.common.testing.NullPointerTester;%0Aimport io.spine.test.Tests;%0Aimport org.junit.Test;%0A%0Aimport static io.spine.tools.CodePreconditions.checkNotEmptyOrBlank;%0A%0A/**%0A * @author Alexander Yevsyukov%0A */%0Apublic class CodePreconditionsShould %7B%0A%0A    @Test%0A    public void have_utility_ctor() %7B%0A        Tests.assertHasPrivateParameterlessCtor(CodePreconditions.class);%0A    %7D%0A%0A    @Test%0A    public void check_nullity() %7B%0A        new NullPointerTester().testAllPublicStaticMethods(CodePreconditions.class);%0A    %7D%0A%0A    @Test(expected = IllegalArgumentException.class)%0A    public void prohibit_empty_string() %7B%0A        checkNotEmptyOrBlank(%22%22);%0A    %7D%0A%0A    @Test(expected = IllegalArgumentException.class)%0A    public void prohibit_blank_string() %7B%0A        checkNotEmptyOrBlank(%22 %22);%0A    %7D%0A%7D%0A

Test `CodePreconditions`