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abhro merged 1 commit into from
Jun 14, 2026
Merged

Enclose all tests in larger testset #54

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192 changes: 97 additions & 95 deletions test/runtests.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -61,100 +61,102 @@ function test_model_interface(K)
@test m(0, 0) ≈ val_dir ≈ BigFloat(1)
end

@testset "Model Interface - $K" for K in (gaussian, airydisk, moffat)
test_model_interface(K)
end

@testset "gaussian" begin
m = gaussian(x=0, y=0, fwhm=10)
expected = exp(-4 * log(2) * sum(abs2, SA[1, 2]) / 100)
@test m(1, 2) ≈ expected

m = gaussian(x=0, y=0, fwhm=(10, 9))
wdist = (1/10)^2 + (2/9)^2
expected = exp(-4 * log(2) * wdist)
@test m(1, 2) ≈ expected

# test Normal alias
@test normal(0, 0; x=0, y=0, fwhm=10) === gaussian(0, 0; x=0, y=0, fwhm=10)
end


@testset "airydisk" begin
fwhm = 10
m = airydisk(x=0, y=0, fwhm=fwhm)
ld = fwhm / 1.028
radius = 1.22 * ld
# first radius is 0
@test m(radius, 0) ≈ 0 atol=1e-5
@test m(-radius, 0) ≈ 0 atol=1e-5
@test m(0, radius) ≈ 0 atol=1e-5
@test m(0, -radius) ≈ 0 atol=1e-5

# second radius is 0
radius2 = 2.23 * ld
@test m(radius2, 0) ≈ 0 atol=1e-5
@test m(-radius2, 0) ≈ 0 atol=1e-5
@test m(0, radius2) ≈ 0 atol=1e-5
@test m(0, -radius2) ≈ 0 atol=1e-5

fwhm = (10, 6)
m = airydisk(x=0, y=0, fwhm=fwhm)
r1 = fwhm[1] * 1.18677
r2 = fwhm[2] * 1.18677
# first radius is 0
@test m(r1, 0) ≈ 0 atol=1e-5
@test m(-r1, 0) ≈ 0 atol=1e-5
@test m(0, r2) ≈ 0 atol=1e-5
@test m(0, -r2) ≈ 0 atol=1e-5

# test with ratio
mratio = airydisk(x=0, y=0, fwhm=10, amp=1, ratio=sqrt(0.5))
# test attenuation
@test mratio(0, 0) ≈ 1
@test mratio(radius, 0) > m(radius, 0)
@test mratio(-radius, 0) > m(-radius, 0)
@test mratio(0, radius) > m(0, radius)
@test mratio(0, -radius) > m(0, -radius)


mratio = airydisk(x=0, y=0, fwhm=(10, 6), ratio=sqrt(0.5), amp=4)
r1 = fwhm[1] * 1.18677
r2 = fwhm[2] * 1.18677
# test attenuation
@test mratio(0, 0) ≈ 4
@test mratio(r1, 0) > m(r1, 0)
@test mratio(-r1, 0) > m(-r1, 0)
@test mratio(0, r2) > m(0, r2)
@test mratio(0, -r2) > m(0, -r2)

# https://github.com/JuliaAstro/PSFModels.jl/issues/14
mratio = airydisk(x = 40.5, y=40.5, fwhm=10, ratio=0.2,amp=1)
@test mratio(40.5, 40.5) ≈ 1
end

@testset "moffat" begin
m = moffat(x=0, y=0, fwhm=10)
expected = inv(1 + sum(abs2, SA[1, 2]) / 25)
@test m(1, 2) ≈ expected

m = moffat(x=0, y=0, fwhm=(10, 9))
wdist = (1/5)^2 + (2/4.5)^2
expected = inv(1 + wdist)
@test m(1, 2) ≈ expected

# different alpha
m = moffat(x=0, y=0, fwhm=10, alpha=2)
expected = inv(1 + sum(abs2, SA[1, 2] ./ PSFModels._moffat_fwhm_to_gamma(10, 2)))^2
@test m(1, 2) ≈ expected

fwhms = randn(rng, 100) .+ 10
for alpha in [0.5, 1.0, 1.5]
gammas = PSFModels._moffat_fwhm_to_gamma.(fwhms, alpha)
fwhm_calc = PSFModels._moffat_gamma_to_fwhm.(gammas, alpha)
@test fwhms ≈ fwhm_calc
@testset "PSFModels" begin
@testset "Model Interface - $K" for K in (gaussian, airydisk, moffat)
test_model_interface(K)
end

@testset "gaussian" begin
m = gaussian(x=0, y=0, fwhm=10)
expected = exp(-4 * log(2) * sum(abs2, SA[1, 2]) / 100)
@test m(1, 2) ≈ expected

m = gaussian(x=0, y=0, fwhm=(10, 9))
wdist = (1/10)^2 + (2/9)^2
expected = exp(-4 * log(2) * wdist)
@test m(1, 2) ≈ expected

# test Normal alias
@test normal(0, 0; x=0, y=0, fwhm=10) === gaussian(0, 0; x=0, y=0, fwhm=10)
end


@testset "airydisk" begin
fwhm = 10
m = airydisk(x=0, y=0, fwhm=fwhm)
ld = fwhm / 1.028
radius = 1.22 * ld
# first radius is 0
@test m(radius, 0) ≈ 0 atol=1e-5
@test m(-radius, 0) ≈ 0 atol=1e-5
@test m(0, radius) ≈ 0 atol=1e-5
@test m(0, -radius) ≈ 0 atol=1e-5

# second radius is 0
radius2 = 2.23 * ld
@test m(radius2, 0) ≈ 0 atol=1e-5
@test m(-radius2, 0) ≈ 0 atol=1e-5
@test m(0, radius2) ≈ 0 atol=1e-5
@test m(0, -radius2) ≈ 0 atol=1e-5

fwhm = (10, 6)
m = airydisk(x=0, y=0, fwhm=fwhm)
r1 = fwhm[1] * 1.18677
r2 = fwhm[2] * 1.18677
# first radius is 0
@test m(r1, 0) ≈ 0 atol=1e-5
@test m(-r1, 0) ≈ 0 atol=1e-5
@test m(0, r2) ≈ 0 atol=1e-5
@test m(0, -r2) ≈ 0 atol=1e-5

# test with ratio
mratio = airydisk(x=0, y=0, fwhm=10, amp=1, ratio=sqrt(0.5))
# test attenuation
@test mratio(0, 0) ≈ 1
@test mratio(radius, 0) > m(radius, 0)
@test mratio(-radius, 0) > m(-radius, 0)
@test mratio(0, radius) > m(0, radius)
@test mratio(0, -radius) > m(0, -radius)


mratio = airydisk(x=0, y=0, fwhm=(10, 6), ratio=sqrt(0.5), amp=4)
r1 = fwhm[1] * 1.18677
r2 = fwhm[2] * 1.18677
# test attenuation
@test mratio(0, 0) ≈ 4
@test mratio(r1, 0) > m(r1, 0)
@test mratio(-r1, 0) > m(-r1, 0)
@test mratio(0, r2) > m(0, r2)
@test mratio(0, -r2) > m(0, -r2)

# https://github.com/JuliaAstro/PSFModels.jl/issues/14
mratio = airydisk(x = 40.5, y=40.5, fwhm=10, ratio=0.2,amp=1)
@test mratio(40.5, 40.5) ≈ 1
end

@testset "moffat" begin
m = moffat(x=0, y=0, fwhm=10)
expected = inv(1 + sum(abs2, SA[1, 2]) / 25)
@test m(1, 2) ≈ expected

m = moffat(x=0, y=0, fwhm=(10, 9))
wdist = (1/5)^2 + (2/4.5)^2
expected = inv(1 + wdist)
@test m(1, 2) ≈ expected

# different alpha
m = moffat(x=0, y=0, fwhm=10, alpha=2)
expected = inv(1 + sum(abs2, SA[1, 2] ./ PSFModels._moffat_fwhm_to_gamma(10, 2)))^2
@test m(1, 2) ≈ expected

fwhms = randn(rng, 100) .+ 10
for alpha in [0.5, 1.0, 1.5]
gammas = PSFModels._moffat_fwhm_to_gamma.(fwhms, alpha)
fwhm_calc = PSFModels._moffat_gamma_to_fwhm.(gammas, alpha)
@test fwhms ≈ fwhm_calc
end
end
end

include("plotting.jl")
include("fitting.jl")
include("plotting.jl")
include("fitting.jl")
end
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