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java.lang.Objectorg.fest.assertions.api.AbstractAssert<ImageAssert,BufferedImage>
org.fest.assertions.api.ImageAssert
public class ImageAssert
Assertion methods for images.
To create an instance of this class, invoke
.
Assertions.assertThat(BufferedImage)
Field Summary |
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Fields inherited from class org.fest.assertions.api.AbstractAssert |
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actual, myself |
Constructor Summary | |
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protected |
ImageAssert(BufferedImage actual)
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Method Summary | |
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ImageAssert |
hasSize(Dimension expected)
Verifies that the actual image has the given size. |
ImageAssert |
isEqualTo(BufferedImage expected)
Verifies that the actual image is equal to the given one. |
ImageAssert |
isEqualTo(BufferedImage expected,
Offset<Integer> offset)
Verifies that the actual image is equal to the given one. |
ImageAssert |
isNotEqualTo(BufferedImage other)
Verifies that the actual value is not equal to the given one. |
ImageAssert |
usingComparator(Comparator<?> customComparator)
Use given custom comparator instead of relying on actual type A equals method for incoming assertion checks. |
ImageAssert |
usingDefaultComparator()
Revert to standard comparison for incoming assertion checks. |
Methods inherited from class org.fest.assertions.api.AbstractAssert |
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as, as, describedAs, describedAs, descriptionText, doesNotHave, equals, has, hashCode, is, isIn, isIn, isNot, isNotIn, isNotIn, isNotNull, isNotSameAs, isNull, isSameAs |
Methods inherited from class java.lang.Object |
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clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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protected ImageAssert(BufferedImage actual)
Method Detail |
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public ImageAssert isEqualTo(BufferedImage expected)
isEqualTo
in interface Assert<ImageAssert,BufferedImage>
isEqualTo
in class AbstractAssert<ImageAssert,BufferedImage>
expected
- the given image to compare the actual image to.
this
assertion object.
AssertionError
- if the actual image is not equal to the given one.public ImageAssert isEqualTo(BufferedImage expected, Offset<Integer> offset)
expected
- the given image to compare the actual image to.offset
- helps decide if the color of two pixels are similar: two pixels that are identical to the human eye
may still have slightly different color values. For example, by using an offset of 1 we can indicate that
a blue value of 60 is similar to a blue value of 61.
this
assertion object.
NullPointerException
- if the given offset is null
.
AssertionError
- if the actual image is not equal to the given one.public ImageAssert isNotEqualTo(BufferedImage other)
isNotEqualTo
in interface Assert<ImageAssert,BufferedImage>
isNotEqualTo
in class AbstractAssert<ImageAssert,BufferedImage>
other
- the given value to compare the actual value to.
this
assertion object.public ImageAssert hasSize(Dimension expected)
expected
- the expected size of the actual image.
this
assertion object.
NullPointerException
- if the given size is null
.
AssertionError
- if the size of the actual image is not equal to the given size.public ImageAssert usingComparator(Comparator<?> customComparator)
AbstractAssert
// compares invoices by payee assertThat(invoiceList).usingComparator(invoicePayeeComparator).isEqualTo(expectedInvoiceList). // compares invoices by date, doesNotHaveDuplicates and contains both use the given invoice date comparator assertThat(invoiceList).usingComparator(invoiceDateComparator).doesNotHaveDuplicates().contains(may2010Invoice) // as assertThat(invoiceList) creates a new assertion, it uses standard comparison strategy (Invoice's equal method) to compare invoiceList elements to lowestInvoice. assertThat(invoiceList).contains(lowestInvoice).Custom comparator is not parameterized with actual type A (ie. Comparator<A>) because if it was, we could not write the following code :
// frodo and sam are instances of Character (a Character having a Race) // raceComparator implements Comparator<Character> // assertThat(frodo) returns an ObjectAssert and not a custom CharacterAssert implementing Assert<CharacterAssert, Character> assertThat(frodo).usingComparator(raceComparator).isEqualTo(sam); // won't compile ! The code does not compile because assertThat(frodo) returns an ObjectAssert, thus usingComparator expects a Comparator<Object> and Comparator<Character> is not a Comparator<Object> as generics are not reified. Note that, it would have worked if assertThat(frodo) returned a CharacterAssert implementing Assert<CharacterAssert, Character>.
usingComparator
in interface Assert<ImageAssert,BufferedImage>
usingComparator
in class AbstractAssert<ImageAssert,BufferedImage>
customComparator
- the comparator to use for incoming assertion checks.
this
assertion object.public ImageAssert usingDefaultComparator()
AbstractAssert
Assert.usingComparator(Comparator)
.
usingDefaultComparator
in interface Assert<ImageAssert,BufferedImage>
usingDefaultComparator
in class AbstractAssert<ImageAssert,BufferedImage>
this
assertion object.
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