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BAEL-1065 Simple performance check StringBuffer vs StringBuilder. (#2512)

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* Code for Dependency Injection Article.

* Added Java based configuration. Downloaded formatter.xml and reformatted
all changed files. Manually changed tab into 4 spaces in XML
configuration files.

* BAEL-434 - Spring Roo project files generated by Spring Roo. No
formatting applied. Added POM, java and resources folders.

* Moved project from roo to spring-roo folder.

* BAEL-838 Initial code showing how to remove last char - helper class and tests.

* BAEL-838 Corrected Helper class and associated empty string test case. Added StringUtils.substing tests.

* BAEL-838 Refromatted code using formatter.xml. Added Assert.assertEquals import. Renamed test to follow convention. Reordered tests.

* BAEL-838 - Added regex method and updated tests.

* BAEL-838 Added new line examples.

* BAEL-838 Renamed RemoveLastChar class to StringHelper and added Java8 examples. Refactord code.

* BAEL-838 Changed method names

* BAEL-838 Tiny change to keep code consistant. Return null or empty.

* BAEL-838 Removed unresolved conflict.

* BAEL-821 New class that shows different rounding techniques. Updated POM.

* BAEL-821 - Added unit test for different round methods.

* BAEL-821 Changed test method name to follow the convention

* BAEL-821 Added more test and updated round methods.

* BAEL-837 - initial commit. A few examples of adding doubles.

* BAEL-837 - Couple of smaller changes

* BAEL-837 - Added jUnit test.

* BAEL-579 Updated Spring Cloud Version

I was getting error: java.lang.NoSuchMethodError:
org.springframework.cloud.config.environment.Environment
After version update, all is okay.

* BAEL-579 Added actuator to Cloud Config Client.

* BAEL-579 Enabled cloud bus and updated dependencies.

* BAEL-579 Config Client using Spring Cloud Bus.

* BAEL-579 Recreated Basic Config Server.

* BAEL-579 Recreated Config Client.

* BAEL-579 Removed test Git URL.

* BAEL-579 Added Actuator to Config Client

* BAEL-579 Added Spring Cloud Bus to Client.

* BAEL-579 Server changes for Spring Cloud Bus

Added dependencies and removed git.clone-on-start as this was causing
server to throw errors after git properties change.

* BAEL-579 Removed Git URL.

* Revert "BAEL-579 Updated Spring Cloud Version"

This reverts commit f775bf91e5.

* Revert "BAEL-579 Config Client using Spring Cloud Bus."

This reverts commit 1d96bc5761.

* Revert "BAEL-579 Enabled cloud bus and updated dependencies."

This reverts commit 7845da922d.

* Revert "BAEL-579 Added actuator to Cloud Config Client."

This reverts commit 076657a26a.

* BAEL-579 Added missing dependency versions.

* BAEL-579 Added missing dependency versions.

* Updated gitignore

* BAEL-1065 Simple performance check StringBuffer vs StringBuilder.

* BAEL-1065 Added JMH benchmarks
This commit is contained in:
iaforek
2017-09-06 07:31:52 +01:00
committed by Grzegorz Piwowarek
parent 4b9ec46ca3
commit 7904c3ee04
4 changed files with 86 additions and 14 deletions
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24
core-java/src/test/java/com/baeldung/maths/RoundTest.java
View File

@@ -15,56 +15,56 @@ public class RoundTest {
private double expected = 2.03d;
@Test
public void givenDecimalNumber_whenRoundToNDecimalPlaces_thenGetExpectedResult() {
public void givenDecimalNumber_whenRoundToNDecimalPlaces_thenGetExpectedResult() {
Assert.assertEquals(expected, Round.round(value, places), delta);
Assert.assertEquals(expected, Round.roundNotPrecise(value, places), delta);
Assert.assertEquals(expected, Round.roundAvoid(value, places), delta);
Assert.assertEquals(expected, Precision.round(value, places), delta);
Assert.assertEquals(expected, DoubleRounder.round(value, places), delta);
places = 3;
expected = 2.035d;
Assert.assertEquals(expected, Round.round(value, places), delta);
Assert.assertEquals(expected, Round.roundNotPrecise(value, places), delta);
Assert.assertEquals(expected, Round.roundAvoid(value, places), delta);
Assert.assertEquals(expected, Precision.round(value, places), delta);
Assert.assertEquals(expected, DoubleRounder.round(value, places), delta);
value = 1000.0d;
places = 17;
expected = 1000.0d;
Assert.assertEquals(expected, Round.round(value, places), delta);
Assert.assertEquals(expected, Round.roundNotPrecise(value, places), delta);
Assert.assertNotEquals(expected, Round.roundAvoid(value, places), delta); // Returns: 92.23372036854776 !
Assert.assertEquals(expected, Precision.round(value, places), delta);
Assert.assertEquals(expected, DoubleRounder.round(value, places), delta);
value = 256.025d;
places = 2;
expected = 256.03d;
Assert.assertEquals(expected, Round.round(value, places), delta);
Assert.assertNotEquals(expected, Round.roundNotPrecise(value, places), delta); // Returns: 256.02 !
Assert.assertNotEquals(expected, Round.roundAvoid(value, places), delta); // Returns: 256.02 !
Assert.assertEquals(expected, Precision.round(value, places), delta);
Assert.assertNotEquals(expected, DoubleRounder.round(value, places), delta); // Returns: 256.02 !
value = 260.775d;
value = 260.775d;
places = 2;
expected = 260.78d;
Assert.assertEquals(expected, Round.round(value, places), delta);
Assert.assertNotEquals(expected, Round.roundNotPrecise(value, places), delta); // Returns: 260.77 !
Assert.assertNotEquals(expected, Round.roundAvoid(value, places), delta); // Returns: 260.77 !
Assert.assertEquals(expected, Precision.round(value, places), delta);
Assert.assertNotEquals(expected, DoubleRounder.round(value, places), delta); // Returns: 260.77 !
value = 90080070060.1d;
places = 9;
expected = 90080070060.1d;
Assert.assertEquals(expected, Round.round(value, places), delta);
Assert.assertEquals(expected, Round.roundNotPrecise(value, places), delta);
Assert.assertNotEquals(expected, Round.roundAvoid(value, places), delta); // Returns: 9.223372036854776E9 !