Fix error with default values on float properties

Author: marcelotto

CHANGELOG.md

@@ -14,6 +14,7 @@ This project adheres to [Semantic Versioning](http://semver.org/) and
 
 ### Fixed
 
+- Defining a default value on a `:float` property was causing an error
 - Fix unwanted normalization of list values in `custom_fields`
 
 

lib/grax/schema/property.ex

@@ -116,6 +116,7 @@ defmodule Grax.Schema.DataProperty do
     do: raise(ArgumentError, "the :default option is not supported on list types")
 
   defp init_default(nil, default), do: default
+  defp init_default(RDF.XSD.Float, default) when is_float(default), do: default
 
   defp init_default(type, default) do
     if Literal.new(default) |> Literal.is_a?(type) do

test/grax/grax_test.exs

@@ -499,6 +499,14 @@ defmodule GraxTest do
                   __id__: IRI.new(EX.User0),
                   email: ["foo@example.com"]
                 }}
+
+      assert Example.DefaultValues.build!(EX.S)
+             |> Grax.put(:float, 1.23) ==
+               {:ok,
+                %Example.DefaultValues{
+                  __id__: IRI.new(EX.S),
+                  float: 1.23
+                }}
     end
 
     test "when the property does not exist" do

test/support/example_schemas.ex

@@ -378,6 +378,7 @@ defmodule Example do
       property foo: EX.foo(), default: "foo"
       property bar: EX.bar(), type: :string, default: "bar"
       property baz: EX.baz(), type: :integer, default: 42
+      property float: EX.float(), type: :float, default: 3.14
       link user: EX.user(), type: Example.User
       link posts: EX.post(), type: list_of(Example.Post)
     end