func TestBigMandelbrotSequence(t *testing.T) {
const prec = 53
const iterLimit = 10
app := &bigbase.MockRenderApplication{
MockRenderApplication: base.MockRenderApplication{
Base: base.BaseConfig{
DivergeLimit: 4.0,
},
PictureWidth: 10,
PictureHeight: 10,
},
}
app.UserMin = bigbase.MakeBigComplex(0.0, 0.0, prec)
app.UserMax = bigbase.MakeBigComplex(10.0, 10.0, prec)
numerics := Make(app)
out := numerics.Sequence()
const expectedCount = 100
actualCount := len(out)
if expectedCount != actualCount {
t.Error("Expected", expectedCount, "members but there were", actualCount)
}
}
func TestRect(t *testing.T) {
left := -1.0
bottom := -1.0
right := 1.0
top := 1.0
app := &MockRenderApplication{}
app.UserMin = bigbase.MakeBigComplex(left, bottom, prec)
app.UserMax = bigbase.MakeBigComplex(right, top, prec)
app.Prec = 53
app.PictureWidth = 2
app.PictureHeight = 2
numerics := Make(app)
expectMinX := 0
expectMaxX := 2
expectMinY := 0
expectMaxY := 2
r := numerics.Rect()
okay := expectMinX == r.Min.X
okay = okay && expectMaxX == r.Max.X
okay = okay && expectMinY == r.Min.Y
okay = okay && expectMaxY == r.Max.Y
if !okay {
t.Error("Rectangle had unexpected bounds", r)
}
}
func TestBigProxySequenceClaimExtrinsics(t *testing.T) {
const picW = 100
const picH = 100
app := &bigbase.MockRenderApplication{}
app.PictureWidth = picW
app.PictureHeight = picH
app.UserMin = bigbase.MakeBigComplex(-2.0, -2.0, prec)
app.UserMax = bigbase.MakeBigComplex(2.0, 2.0, prec)
app.Prec = prec
numerics := bigsequence.Make(app)
min := bigbase.MakeBigComplex(-1.0, -1.0, prec)
max := bigbase.MakeBigComplex(1.0, 1.0, prec)
region := createBigRegion(numerics.BigBaseNumerics, min, max)
bsnp := BigSequenceNumericsProxy{
BigSequenceNumerics: &numerics,
LocalRegion: region,
}
bsnp.ClaimExtrinsics()
expect := base.BaseNumerics{
WholeWidth: picW,
WholeHeight: picH,
PicXMin: 25,
PicXMax: 75,
PicYMin: 25,
PicYMax: 75,
}
actual := bsnp.BigBaseNumerics.BaseNumerics
if actual != expect {
t.Error("Expected ", expect, "but received", actual)
}
}
func TestSampleDivs(t *testing.T) {
const pWidth = 100
const pHeight = 100
const iLimit = 255
const dLimit = 1.42
const maxRegSz = 10
const samples = 100
const natMin = complex(-2.0, -2.0)
const natMax = complex(2.0, 2.0)
const prec = 53
bigMin := bigbase.MakeBigComplex(real(natMin), imag(natMax), prec)
bigMax := bigbase.MakeBigComplex(real(natMax), imag(natMax), prec)
mockBase := base.MockRenderApplication{}
mockBase.PictureWidth = pWidth
mockBase.PictureHeight = pHeight
mockBase.Base.IterateLimit = iLimit
mockBase.Base.DivergeLimit = dLimit
mockBase.Base.FixAspect = true
regConfig := region.RegionConfig{}
regConfig.CollapseSize = maxRegSz
regConfig.Samples = samples
bigCoords := bigbase.MockBigCoordProvider{}
bigCoords.UserMin = bigMin
bigCoords.UserMax = bigMax
bigCoords.Prec = prec
// This business is over complicated
bigProvider := region.MockRegionProvider{}
bigProvider.RegConfig = regConfig
bigProvider.RegionFactory = fRegFactory(func() region.RegionNumerics {
app := &MockRenderApplication{}
app.MockRegionProvider = bigProvider
app.MockRenderApplication = mockBase
app.MockBigCoordProvider = bigCoords
bignums := Make(app)
return &bignums
})
nativeCoords := nativebase.MockNativeCoordProvider{}
nativeCoords.PlaneMin = natMin
nativeCoords.PlaneMax = natMax
nativeProvider := region.MockRegionProvider{}
nativeProvider.RegConfig = regConfig
nativeProvider.RegionFactory = fRegFactory(func() region.RegionNumerics {
app := &nativeregion.MockRenderApplication{}
app.MockNativeCoordProvider = nativeCoords
app.MockRegionProvider = nativeProvider
app.MockRenderApplication = mockBase
natnums := nativeregion.Make(app)
return &natnums
})
bReg := bigProvider.RegionFactory.Build()
nReg := bigProvider.RegionFactory.Build()
bich, _ := bReg.SampleDivs()
nich, _ := nReg.SampleDivs()
bs := slurp(bich)
ns := slurp(nich)
for i, bInvDiv := range bs {
nInvDiv := ns[i]
if bInvDiv != nInvDiv {
t.Error("Mismatch InvDiv at sample ", i,
"native was", nInvDiv, "but big was", bInvDiv)
}
}
}