add test for save and load

Author: dehann

test/runtests.jl

@@ -23,6 +23,9 @@ include("testPartialFactors.jl")
 @testset "basic Bayes tree construction" begin
     include("testBayesTreeiSAM2Example.jl")
 end
+
+include("testTreeSaveLoad.jl")
+
 @testset "Ensure converter types can be run from extending namespaces..." begin
     include("saveconvertertypes.jl")
 end

test/testTreeSaveLoad.jl

@@ -0,0 +1,28 @@
+# test saving and loading of trees
+
+using Test
+using IncrementalInference
+
+@testset "Test loading and saving of Bayes (Junction) tree" begin
+
+    fg = loadCanonicalFG_Kaess(graphinit=false)
+    tree = wipeBuildNewTree!(fg)
+
+    # save and load tree
+    saveTree(tree)
+    tree2 = loadTree()
+
+    # perform a few spot checks to see that the trees are similar
+    @test length(tree.cliques) == length(tree2.cliques)
+    @test getVariableOrder(tree) == getVariableOrder(tree2)
+
+    for (clid,cl) in tree.cliques
+      fsyms = getFrontals(cl)
+      cl2 = getCliq(tree2, fsyms[1])
+      fsyms2 = getFrontals(cl2)
+      @test fsyms == fsyms2
+      @test getCliqSeparatorVarIds(cl) == getCliqSeparatorVarIds(cl2)
+      @test typeof(cl) == typeof(cl2)
+    end
+
+end