distr_wrappers: add tests for multivariate distrs

Author: alyst

test/distribution_wrappers.jl

@@ -1,13 +1,33 @@
 @testset "distribution_wrappers.jl" begin
-    d = Normal()
-    nd = DynamicPPL.NoDist(d)
+    @testset "univariate" begin
+        d = Normal()
+        nd = DynamicPPL.NoDist(d)
 
-    # Smoke test
-    rand(nd)
+        # Smoke test
+        rand(nd)
 
-    # Actual tests
-    @test minimum(nd) == -Inf
-    @test maximum(nd) == Inf
-    @test logpdf(nd, 15.0) == 0
-    @test Bijectors.logpdf_with_trans(nd, 0) == 0
+        # Actual tests
+        @test minimum(nd) == -Inf
+        @test maximum(nd) == Inf
+        @test logpdf(nd, 15.0) == 0
+        @test Bijectors.logpdf_with_trans(nd, 0) == 0
+        @test Bijectors.bijector(nd) == Bijectors.bijector(d)
+    end
+
+    @testset "multivariate" begin
+        d = Product([Normal(), Uniform()])
+        nd = DynamicPPL.NoDist(d)
+
+        # Smoke test
+        @test length(rand(nd)) == 2
+
+        # Actual tests
+        #@test length(nd) == 2
+        #@test size(nd) == (2,)
+        @test minimum(nd) == [-Inf, 0.0]
+        @test maximum(nd) == [Inf, 1.0]
+        @test logpdf(nd, [15.0, 0.5]) == 0
+        @test Bijectors.logpdf_with_trans(nd, [0, 1]) == 0
+        @test Bijectors.bijector(nd) == Bijectors.bijector(d)
+    end
 end