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|
/* __ *\
** ________ ___ / / ___ __ ____ Scala.js Test Suite **
** / __/ __// _ | / / / _ | __ / // __/ (c) 2013, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ |/_// /_\ \ http://scala-js.org/ **
** /____/\___/_/ |_/____/_/ | |__/ /____/ **
** |/____/ **
\* */
package scala.scalajs.testsuite.niobuffer
import org.scalajs.jasminetest.JasmineTest
import java.nio._
abstract class BaseBufferTest extends JasmineTest {
trait BaseFactory {
type BufferType <: Buffer
val createsReadOnly: Boolean = false
def allocBuffer(capacity: Int): BufferType
def allocBuffer(pos: Int, limit: Int, capacity: Int): BufferType = {
val buf = allocBuffer(capacity)
buf.limit(limit).position(pos)
buf
}
}
type Factory <: BaseFactory
def commonTests(factory: Factory): Unit = {
import factory._
it("allocate") {
val buf = allocBuffer(10)
expect(buf.position).toEqual(0)
expect(buf.limit).toEqual(10)
expect(buf.capacity).toEqual(10)
expect(allocBuffer(0).capacity).toEqual(0)
expect(() => allocBuffer(-1)).toThrow
val buf2 = allocBuffer(1, 5, 9)
expect(buf2.position()).toEqual(1)
expect(buf2.limit()).toEqual(5)
expect(buf2.capacity()).toEqual(9)
}
it("isReadOnly()") {
val buf = allocBuffer(10)
if (createsReadOnly)
expect(buf.isReadOnly()).toBeTruthy
else
expect(buf.isReadOnly()).toBeFalsy
}
it("position") {
val buf = allocBuffer(10)
buf.position(3)
expect(buf.position()).toEqual(3)
buf.position(10)
expect(buf.position()).toEqual(10)
buf.position(0)
expect(buf.position()).toEqual(0)
expect(() => buf.position(-1)).toThrow
expect(() => buf.position(11)).toThrow
expect(buf.position()).toEqual(0)
val buf2 = allocBuffer(1, 5, 9)
expect(buf2.position()).toEqual(1)
buf2.position(5)
expect(buf2.position()).toEqual(5)
expect(() => buf2.position(6)).toThrow
expect(buf2.position()).toEqual(5)
}
it("limit") {
val buf = allocBuffer(10)
buf.position(3)
buf.limit(7)
expect(buf.limit()).toEqual(7)
expect(buf.position()).toEqual(3)
expect(() => buf.limit(11)).toThrow
expect(buf.limit()).toEqual(7)
expect(() => buf.limit(-1)).toThrow
expect(buf.limit()).toEqual(7)
expect(buf.position()).toEqual(3)
buf.position(5)
buf.limit(4)
expect(buf.limit()).toEqual(4)
expect(buf.position()).toEqual(4)
}
it("mark() and reset()") {
val buf = allocBuffer(10)
// Initially, the mark should not be set
expect(() => buf.reset()).toThrow
// Simple test
buf.position(3)
buf.mark()
buf.position(8)
buf.reset()
expect(buf.position()).toEqual(3)
// reset() should not have cleared the mark
buf.position(5)
buf.reset()
expect(buf.position()).toEqual(3)
// setting position() below the mark should clear the mark
buf.position(2)
expect(() => buf.reset()).toThrow
}
it("clear()") {
val buf = allocBuffer(3, 6, 10)
buf.mark()
buf.position(4)
buf.clear()
expect(buf.position()).toEqual(0)
expect(buf.limit()).toEqual(10) // the capacity
expect(buf.capacity()).toEqual(10)
expect(() => buf.reset()).toThrow
}
it("flip()") {
val buf = allocBuffer(3, 6, 10)
buf.mark()
buf.position(4)
buf.flip()
expect(buf.position()).toEqual(0)
expect(buf.limit()).toEqual(4) // old position
expect(buf.capacity()).toEqual(10)
expect(() => buf.reset()).toThrow
}
it("rewind()") {
val buf = allocBuffer(3, 6, 10)
buf.mark()
buf.position(4)
buf.rewind()
expect(buf.position()).toEqual(0)
expect(buf.limit()).toEqual(6) // unchanged
expect(buf.capacity()).toEqual(10)
expect(() => buf.reset()).toThrow
}
it("remaining() and hasRemaining()") {
val buf = allocBuffer(3, 7, 10)
expect(buf.remaining()).toEqual(7-3)
expect(buf.hasRemaining()).toBeTruthy
buf.position(6)
expect(buf.remaining()).toEqual(7-6)
expect(buf.hasRemaining()).toBeTruthy
buf.limit(9)
expect(buf.remaining()).toEqual(9-6)
expect(buf.hasRemaining()).toBeTruthy
buf.limit(2)
expect(buf.remaining()).toEqual(0)
expect(buf.hasRemaining()).toBeFalsy
buf.position(0)
expect(buf.remaining()).toEqual(2)
expect(buf.hasRemaining()).toBeTruthy
}
}
}
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