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VMSnapshotPrimitiveTest.class.st
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VMSnapshotPrimitiveTest.class.st
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Class {
#name : #VMSnapshotPrimitiveTest,
#superclass : #VMInterpreterTests,
#instVars : [
'imageName'
],
#pools : [
'VMBasicConstants',
'VMBytecodeConstants',
'VMObjectIndices'
],
#category : #'VMMakerTests-InterpreterTests'
}
{ #category : #running }
VMSnapshotPrimitiveTest >> setUp [
super setUp.
interpreter pluginList: #( ).
self setUpScheduler.
self initializeOldSpaceForFullGC.
self setContextClassIntoClassTable.
imageName := self class name
]
{ #category : #running }
VMSnapshotPrimitiveTest >> tearDown [
imageName ifNotNil: [ imageName asFileReference ensureDeleteAll ].
super tearDown
]
{ #category : #'tests - snapshot' }
VMSnapshotPrimitiveTest >> testPrimitiveSnapshotContextsShouldBeTenured [
| method frame contextOop contextIdentityHash suspendedContext |
method := methodBuilder newMethod buildMethod.
frame := stackBuilder addNewFrame
method: method;
yourself.
stackBuilder buildStack.
contextOop := interpreter
ensureFrameIsMarried: frame framePointer
SP: frame stackPointer.
contextIdentityHash := memory hashBitsOf: contextOop.
interpreter instructionPointer: method + 17.
interpreter imageName: imageName.
interpreter setImageHeaderFlagsFrom: 0.
interpreter primitiveSnapshot.
suspendedContext := memory
fetchPointer: SuspendedContextIndex
ofObject: memory memoryActiveProcess.
self
assert: (memory hashBitsOf: suspendedContext)
equals: contextIdentityHash
]
{ #category : #'tests - snapshot' }
VMSnapshotPrimitiveTest >> testPrimitiveSnapshotCreateImage [
| method |
method := methodBuilder newMethod buildMethod.
stackBuilder addNewFrame method: method.
stackBuilder buildStack.
interpreter instructionPointer: method + (1 + 8 + 8).
interpreter imageName: imageName.
interpreter setImageHeaderFlagsFrom: 0.
interpreter primitiveSnapshot.
interpreter imageReaderWriter validateImage: imageName
]
{ #category : #'tests - snapshot' }
VMSnapshotPrimitiveTest >> testPrimitiveSnapshotHandlesFormatToUse [
| method |
method := methodBuilder newMethod numberOfArguments: 1; buildMethod.
stackBuilder addNewFrame
method: method;
stack: { memory integerObjectOf: 4 }.
stackBuilder buildStack.
interpreter instructionPointer: method + (1 + 8 + 8).
interpreter imageName: imageName.
interpreter setImageHeaderFlagsFrom: 0.
interpreter argumentCount: 1.
interpreter primitiveSnapshot.
interpreter imageReaderWriter validateImage: imageName
]
{ #category : #'tests - snapshot' }
VMSnapshotPrimitiveTest >> testPrimitiveSnapshotNewKeptObjectShouldBeTenured [
| method object objectHash |
method := methodBuilder newMethod buildMethod.
stackBuilder addNewFrame method: method.
stackBuilder buildStack.
interpreter instructionPointer: method + 17.
interpreter imageName: imageName.
interpreter setImageHeaderFlagsFrom: 0.
object := self newObjectWithSlots: 0.
self keepObjectInVMVariable1: object.
objectHash := memory hashBitsOf: object.
interpreter primitiveSnapshot.
self
assert: (memory hashBitsOf: self keptObjectInVMVariable1)
equals: objectHash
]