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testing-modules/testing-libraries-2/src/test/java/com/baeldung/systemstubs/SystemOutJUnit5UnitTest.java
28 строк
869 B
Ashley Frieze
BAEL-4742 System Stubs example tests
25 ноя 2020, 02:38
25 ноя 2020, 02:38
3c01b8f
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package com.baeldung.systemstubs; import org.junit.jupiter.api.Test; import org.junit.jupiter.api.extension.ExtendWith; import uk.org.webcompere.systemstubs.jupiter.SystemStub; import uk.org.webcompere.systemstubs.jupiter.SystemStubsExtension; import uk.org.webcompere.systemstubs.stream.SystemErr; import uk.org.webcompere.systemstubs.stream.SystemOut; import static org.assertj.core.api.Assertions.assertThat; @ExtendWith(SystemStubsExtension.class) class SystemOutJUnit5UnitTest { @SystemStub private SystemOut systemOut; @SystemStub private SystemErr systemErr; @Test void whenWriteToOutput_thenItCanBeAsserted() { System.out.println("to out"); System.err.println("to err"); assertThat(systemOut.getLines()).containsExactly("to out"); assertThat(systemErr.getLines()).containsExactly("to err"); } }