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VMSegmentsImageFormatTest.class.st
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VMSegmentsImageFormatTest.class.st
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Class {
#name : #VMSegmentsImageFormatTest,
#superclass : #VMAbstractImageFormatTest,
#category : #'VMMakerTests-ImageFormat'
}
{ #category : #tests }
VMSegmentsImageFormatTest >> testImageWithTwoSegmentsHasCorrectSizeForFirstSegment [
| header newSegmentSize |
newSegmentSize := memory growOldSpaceByAtLeast: 10000.
self assert: memory segmentManager numSegments equals: 2.
self assert: (memory segmentManager segments at: 1) segSize equals: newSegmentSize.
self saveImage.
header := self readHeader.
self
assert: header firstSegSize
equals: (memory segmentManager segments at: 0) segSize
]
{ #category : #tests }
VMSegmentsImageFormatTest >> testImageWithTwoSegmentsHasCorrectSizeForFullImage [
| header newSegmentSize |
newSegmentSize := memory growOldSpaceByAtLeast: 10000.
self assert: memory segmentManager numSegments equals: 2.
self assert: (memory segmentManager segments at: 1) segSize equals: newSegmentSize.
self saveImage.
header := self readHeader.
self
assert: header firstSegSize
equals: (memory segmentManager segments at: 0) segSize.
self
assert: header dataSize
equals: header firstSegSize + newSegmentSize
]
{ #category : #tests }
VMSegmentsImageFormatTest >> testImageWithTwoSegmentsRespectGrowHeadroomWhenIsBigger [
| newSegmentSize |
newSegmentSize := memory growOldSpaceByAtLeast: 10000.
self assert: memory segmentManager numSegments equals: 2.
self assert: (memory segmentManager segments at: 1) segSize equals: newSegmentSize.
self assert: newSegmentSize >= memory growHeadroom
]
{ #category : #tests }
VMSegmentsImageFormatTest >> testImageWithTwoSegmentsRespectGrowHeadroomWhenIsSmaller [
| newSegmentSize |
memory growHeadroom: 4096.
newSegmentSize := memory growOldSpaceByAtLeast: 10000.
self assert: memory segmentManager numSegments equals: 2.
self assert: (memory segmentManager segments at: 1) segSize equals: newSegmentSize.
self assert: newSegmentSize >= memory growHeadroom
]
{ #category : #tests }
VMSegmentsImageFormatTest >> testMinimalImageHasASingleSegment [
| header |
self assert: memory segmentManager numSegments equals: 1.
self saveImage.
header := self readHeader.
"Having a single segment is that the size of data is equals to the first segment size"
self assert: header firstSegSize equals: header dataSize
]