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Pre conditions (#1116) 

* BAL-36 File size api in java and apache commons IO

* BAEL-282 grep in java - fixes after code review

* BAEL-519 Added support for disruptor library

* BAEL-519 Added support for disruptor library

* BAEL-519 Added support for disruptor library

* BAEL-519 Added support for disruptor library

* BAEL-519 Added support for disruptor library

* BAEL-519 Added support for disruptor library

* BAEL-519 Added support for disruptor

* BAEL-519 Moved all supporting classes to main source

* BAEL-519 Moved all supporting classes to main source

* BAEL-519 Moved asserts and test classes in test folder.

* BAEL-519 moved test related producer and consumer to src.

* BAEL-586 Guide to Guava BiMap.

* BAEL-587 formatted code.

* BAEL-519 LMAX Disruptor

* BAEL-587 resolved merge

* BAEL-587 Resolved merge

* BAEL-519 Removed disruptor link.

* BAEL-519 Reverted Guava changes

* RFQ-587 Added disruptor as a separate module.

* BAEL-519 Disruptor changes.

* BAEL-519 Removed disruptor from core-java module.

* BAEL-637 Guide to PreConditions

* BAEL-637 Used assertJ for exception assertion.

* BAEL-637 updated tests to use assertJ.

* BAEL-637 Removed redundant tests.
This commit is contained in:
Muhammed Almas 2017-02-06 02:36:31 +05:30 committed by Zeger Hendrikse
parent 4cbb0edafa
commit 1565938803
1 changed files with 15 additions and 68 deletions
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83
guava/src/test/java/org/baeldung/guava/GuavaPreConditionsTest.java
View File

@ -3,7 +3,7 @@ package org.baeldung.guava;
import static org.assertj.core.api.Assertions.assertThatThrownBy;
import java.util.Arrays;
import org.junit.Test;
import static com.google.common.base.Preconditions.*;
import com.google.common.base.*;
public class GuavaPreConditionsTest {
@ -11,10 +11,7 @@ public class GuavaPreConditionsTest {
public void whenCheckArgumentEvaluatesFalse_throwsException() {
int age = -18;
assertThatThrownBy(() -> checkArgument(age > 0))
.isInstanceOf(IllegalArgumentException.class)
.hasMessage(null)
.hasNoCause();
assertThatThrownBy(() -> Preconditions.checkArgument(age > 0)).isInstanceOf(IllegalArgumentException.class).hasMessage(null).hasNoCause();
}
@Test
@ -22,10 +19,7 @@ public class GuavaPreConditionsTest {
final int age = -18;
final String message = "Age can't be zero or less than zero";
assertThatThrownBy(() -> checkArgument(age > 0, message))
.isInstanceOf(IllegalArgumentException.class)
.hasMessage(message)
.hasNoCause();
assertThatThrownBy(() -> Preconditions.checkArgument(age > 0, message)).isInstanceOf(IllegalArgumentException.class).hasMessage(message).hasNoCause();
}
@Test
@ -33,19 +27,14 @@ public class GuavaPreConditionsTest {
final int age = -18;
final String message = "Age can't be zero or less than zero, you supplied %s.";
assertThatThrownBy(() -> checkArgument(age > 0, message, age))
.isInstanceOf(IllegalArgumentException.class)
.hasMessage(message, age)
.hasNoCause();
assertThatThrownBy(() -> Preconditions.checkArgument(age > 0, message, age)).isInstanceOf(IllegalArgumentException.class).hasMessage(message, age).hasNoCause();
}
@Test
public void givenArrayOfIntegers_whenCheckElementIndexEvaluatesFalse_throwsException() {
final int[] numbers = { 1, 2, 3, 4, 5 };
assertThatThrownBy(() -> checkElementIndex(6, numbers.length - 1))
.isInstanceOf(IndexOutOfBoundsException.class)
.hasNoCause();
assertThatThrownBy(() -> Preconditions.checkElementIndex(6, numbers.length - 1)).isInstanceOf(IndexOutOfBoundsException.class).hasNoCause();
}
@Test
@ -53,20 +42,7 @@ public class GuavaPreConditionsTest {
final int[] numbers = { 1, 2, 3, 4, 5 };
final String message = "Please check the bound of an array and retry";
assertThatThrownBy(() -> checkElementIndex(6, numbers.length - 1, message))
.isInstanceOf(IndexOutOfBoundsException.class)
.hasMessageStartingWith(message)
.hasNoCause();
}
@Test
public void givenNullString_whenCheckNotNullCalled_throwsException() {
final String nullObject = null;
assertThatThrownBy(() -> checkNotNull(nullObject))
.isInstanceOf(NullPointerException.class)
.hasMessage(null)
.hasNoCause();
assertThatThrownBy(() -> Preconditions.checkElementIndex(6, numbers.length - 1, message)).isInstanceOf(IndexOutOfBoundsException.class).hasMessageStartingWith(message).hasNoCause();
}
@Test
@ -74,10 +50,7 @@ public class GuavaPreConditionsTest {
final String nullObject = null;
final String message = "Please check the Object supplied, its null!";
assertThatThrownBy(() -> checkNotNull(nullObject, message))
.isInstanceOf(NullPointerException.class)
.hasMessage(message)
.hasNoCause();
assertThatThrownBy(() -> Preconditions.checkNotNull(nullObject, message)).isInstanceOf(NullPointerException.class).hasMessage(message).hasNoCause();
}
@Test
@ -85,19 +58,14 @@ public class GuavaPreConditionsTest {
final String nullObject = null;
final String message = "Please check the Object supplied, its %s!";
assertThatThrownBy(() -> checkNotNull(nullObject, message, nullObject))
.isInstanceOf(NullPointerException.class)
.hasMessage(message, nullObject)
.hasNoCause();
assertThatThrownBy(() -> Preconditions.checkNotNull(nullObject, message, nullObject)).isInstanceOf(NullPointerException.class).hasMessage(message, nullObject).hasNoCause();
}
@Test
public void givenArrayOfIntegers_whenCheckPositionIndexEvaluatesFalse_throwsException() {
final int[] numbers = { 1, 2, 3, 4, 5 };
assertThatThrownBy(() -> checkPositionIndex(6, numbers.length - 1))
.isInstanceOf(IndexOutOfBoundsException.class)
.hasNoCause();
assertThatThrownBy(() -> Preconditions.checkPositionIndex(6, numbers.length - 1)).isInstanceOf(IndexOutOfBoundsException.class).hasNoCause();
}
@Test
@ -105,30 +73,14 @@ public class GuavaPreConditionsTest {
final int[] numbers = { 1, 2, 3, 4, 5 };
final String message = "Please check the bound of an array and retry";
assertThatThrownBy(() -> checkPositionIndex(6, numbers.length - 1, message))
.isInstanceOf(IndexOutOfBoundsException.class)
.hasMessageStartingWith(message)
.hasNoCause();
assertThatThrownBy(() -> Preconditions.checkPositionIndex(6, numbers.length - 1, message)).isInstanceOf(IndexOutOfBoundsException.class).hasMessageStartingWith(message).hasNoCause();
}
@Test
public void givenArrayOfIntegers_whenCheckPositionIndexesEvaluatesFalse_throwsException() {
final int[] numbers = { 1, 2, 3, 4, 5 };
assertThatThrownBy(() -> checkPositionIndexes(6, 0, numbers.length - 1))
.isInstanceOf(IndexOutOfBoundsException.class)
.hasNoCause();
}
@Test
public void givenValidStates_whenCheckStateEvaluatesFalse_throwsException() {
final int[] validStates = { -1, 0, 1 };
final int givenState = 10;
assertThatThrownBy(() -> checkState(Arrays.binarySearch(validStates, givenState) > 0))
.isInstanceOf(IllegalStateException.class)
.hasMessage(null)
.hasNoCause();
assertThatThrownBy(() -> Preconditions.checkPositionIndexes(6, 0, numbers.length - 1)).isInstanceOf(IndexOutOfBoundsException.class).hasNoCause();
}
@Test
@ -137,10 +89,7 @@ public class GuavaPreConditionsTest {
final int givenState = 10;
final String message = "You have entered an invalid state";
assertThatThrownBy(() -> checkState(Arrays.binarySearch(validStates, givenState) > 0, message))
.isInstanceOf(IllegalStateException.class)
.hasMessageStartingWith(message)
.hasNoCause();
assertThatThrownBy(() -> Preconditions.checkState(Arrays.binarySearch(validStates, givenState) > 0, message)).isInstanceOf(IllegalStateException.class).hasMessageStartingWith(message).hasNoCause();
}
@Test
@ -149,9 +98,7 @@ public class GuavaPreConditionsTest {
final int givenState = 10;
final String message = "State can't be %s, It can be one of %s.";
assertThatThrownBy(() -> checkState(Arrays.binarySearch(validStates, givenState) > 0, message, givenState, Arrays.toString(validStates)))
.isInstanceOf(IllegalStateException.class)
.hasMessage(message, givenState, Arrays.toString(validStates))
.hasNoCause();
assertThatThrownBy(() -> Preconditions.checkState(Arrays.binarySearch(validStates, givenState) > 0, message, givenState, Arrays.toString(validStates))).isInstanceOf(IllegalStateException.class)
.hasMessage(message, givenState, Arrays.toString(validStates)).hasNoCause();
}
}
}