BAEL-2444 Samples (#6002)

2018-12-30 00:38:11 -03:00
parent 676f55e872
commit 9ffbe2bfcb
3 changed files with 126 additions and 2 deletions
@@ -0,0 +1,43 @@
+package com.baeldung.time;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.powermock.core.classloader.annotations.PrepareForTest;
+import org.powermock.modules.junit4.PowerMockRunner;
+
+import java.time.Clock;
+import java.time.Instant;
+import java.time.LocalDateTime;
+import java.time.ZoneId;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.Mockito.when;
+import static org.powermock.api.mockito.PowerMockito.mockStatic;
+
+@RunWith(PowerMockRunner.class)
+@PrepareForTest({ LocalDateTime.class })
+public class LocalDateTimeUnitTest {
+
+    @Test
+    public void givenLocalDateTimeMock_whenNow_thenGetFixedLocalDateTime() {
+        Clock clock = Clock.fixed(Instant.parse("2014-12-22T10:15:30.00Z"), ZoneId.of("UTC"));
+        LocalDateTime dateTime = LocalDateTime.now(clock);
+        mockStatic(LocalDateTime.class);
+        when(LocalDateTime.now()).thenReturn(dateTime);
+        String dateTimeExpected = "2014-12-22T10:15:30";
+
+        LocalDateTime now = LocalDateTime.now();
+
+        assertThat(now).isEqualTo(dateTimeExpected);
+    }
+
+    @Test
+    public void givenFixedClock_whenNow_thenGetFixedLocalDateTime() {
+        Clock clock = Clock.fixed(Instant.parse("2014-12-22T10:15:30.00Z"), ZoneId.of("UTC"));
+        String dateTimeExpected = "2014-12-22T10:15:30";
+
+        LocalDateTime dateTime = LocalDateTime.now(clock);
+
+        assertThat(dateTime).isEqualTo(dateTimeExpected);
+    }
+}
@@ -0,0 +1,48 @@
+package com.baeldung.time;
+
+import mockit.Expectations;
+import mockit.Mock;
+import mockit.MockUp;
+import org.junit.jupiter.api.Test;
+
+import java.time.Clock;
+import java.time.Instant;
+import java.time.LocalDateTime;
+import java.time.ZoneId;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class LocalDateTimeWithJMockUnitTest {
+
+    @Test
+    public void givenLocalDateTimeWithJMock_whenNow_thenGetFixedLocalDateTime() {
+        Clock clock = Clock.fixed(Instant.parse("2014-12-21T10:15:30.00Z"), ZoneId.of("UTC"));
+        new MockUp<LocalDateTime>() {
+            @Mock
+            public LocalDateTime now() {
+                return LocalDateTime.now(clock);
+            }
+        };
+        String dateTimeExpected = "2014-12-21T10:15:30";
+
+        LocalDateTime now = LocalDateTime.now();
+
+        assertThat(now).isEqualTo(dateTimeExpected);
+    }
+
+    @Test
+    public void givenLocalDateTimeWithExpectations_whenNow_thenGetFixedLocalDateTime() {
+        Clock clock = Clock.fixed(Instant.parse("2014-12-23T10:15:30.00Z"), ZoneId.of("UTC"));
+        LocalDateTime dateTimeExpected = LocalDateTime.now(clock);
+        new Expectations(LocalDateTime.class) {
+            {
+                LocalDateTime.now();
+                result = dateTimeExpected;
+            }
+        };
+
+        LocalDateTime now = LocalDateTime.now();
+
+        assertThat(now).isEqualTo(dateTimeExpected);
+    }
+}