adding tests that parsed matpower data can be seralized to JSON

Author: ccoffrin

test/matpower.jl

@@ -1,3 +1,5 @@
+using JSON
+
 @testset "test matpower parser" begin
     @testset "30-bus case file" begin
         result = run_opf("../test/data/case30.m", ACPPowerModel, ipopt_solver)
@@ -8,6 +10,8 @@
 
     @testset "30-bus case matpower data" begin
         data = PowerModels.parse_file("../test/data/case30.m")
+        @test isa(JSON.json(data), String)
+
         result = run_opf(data, ACPPowerModel, ipopt_solver)
 
         @test result["status"] == :LocalOptimal
@@ -17,6 +21,7 @@
     @testset "14-bus case file with names" begin
         data = PowerModels.parse_file("../test/data/case14.m")
         @test data["bus"][1]["bus_name"] == "Bus 1     HV"
+        @test isa(JSON.json(data), String)
     end
 
     @testset "2-bus case file with spaces" begin
@@ -56,6 +61,7 @@ end
         @test data["const_int"] == 123
         @test data["const_float"] == 4.56
         @test data["const_str"] == "a string"
+        @test isa(JSON.json(data), String)
     end
 
     @testset "3-bus extended matrix" begin
@@ -66,6 +72,7 @@ end
         @test data["areas"][1]["col_2"] == 1
         @test data["areas"][2]["col_1"] == 2
         @test data["areas"][2]["col_2"] == 3
+        @test isa(JSON.json(data), String)
     end
 
     @testset "3-bus extended named matrix" begin
@@ -76,6 +83,7 @@ end
         @test data["areas_named"][1]["refbus"] == 5
         @test data["areas_named"][2]["area"] == 5
         @test data["areas_named"][2]["refbus"] == 6
+        @test isa(JSON.json(data), String)
     end
 
     @testset "3-bus extended predefined matrix" begin
@@ -88,6 +96,7 @@ end
         @test data["branch"][2]["rate_p"] == 60.1
         @test data["branch"][3]["rate_i"] == 12
         @test data["branch"][3]["rate_p"] == 30
+        @test isa(JSON.json(data), String)
     end
 
 
@@ -103,6 +112,7 @@ end
         @test data["areas_cells"][2]["col_2"] == 456
         @test data["areas_cells"][2]["col_4"] == "Slack Bus 3"
         @test data["areas_cells"][2]["col_5"] == 4.56
+        @test isa(JSON.json(data), String)
     end
 
     @testset "3-bus extended named matrix from cell" begin
@@ -119,6 +129,7 @@ end
         @test data["areas_named_cells"][2]["area2"] == 987
         @test data["areas_named_cells"][2]["refbus_name"] == "Slack Bus 3"
         @test data["areas_named_cells"][2]["refbus"] == 4.56
+        @test isa(JSON.json(data), String)
     end
 
     @testset "3-bus extended predefined matrix from cell" begin
@@ -131,6 +142,16 @@ end
         @test data["branch"][2]["number_id"] == 456
         @test data["branch"][3]["name"] == "Branch 3"
         @test data["branch"][3]["number_id"] == 789
+        @test isa(JSON.json(data), String)
+    end
+
+    @testset "3-bus tnep case" begin
+        data = PowerModels.parse_file("../test/data/case3_tnep.m")
+
+        @test haskey(data, "ne_branch")
+        @test data["ne_branch"][1]["f_bus"] == 1
+        @test data["ne_branch"][1]["construction_cost"] == 1
+        @test isa(JSON.json(data), String)
     end
 end