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require "test_helper"
require "json_pointer"
require "json_schema"
describe JsonPointer::Evaluator do
before do
@evaluator = JsonPointer::Evaluator.new(data)
end
it "evaluates pointers according to spec" do
assert_equal data, @evaluator.evaluate("")
assert_equal ["bar", "baz"], @evaluator.evaluate("/foo")
assert_equal "bar", @evaluator.evaluate("/foo/0")
assert_equal 0, @evaluator.evaluate("/")
assert_equal 1, @evaluator.evaluate("/a~1b")
assert_equal 2, @evaluator.evaluate("/c%d")
assert_equal 3, @evaluator.evaluate("/e^f")
assert_equal 4, @evaluator.evaluate("/g|h")
assert_equal 5, @evaluator.evaluate("/i\\j")
assert_equal 6, @evaluator.evaluate("/k\"l")
assert_equal 7, @evaluator.evaluate("/ ")
assert_equal 8, @evaluator.evaluate("/m~0n")
end
it "takes a leading #" do
assert_equal 0, @evaluator.evaluate("#/")
end
it "returns nils on missing values" do
assert_nil @evaluator.evaluate("/bar")
end
it "raises when a path doesn't being with /" do
e = assert_raises(ArgumentError) { @evaluator.evaluate("foo") }
assert_equal %{Path must begin with a leading "/": foo.}, e.message
e = assert_raises(ArgumentError) { @evaluator.evaluate("#foo") }
assert_equal %{Path must begin with a leading "/": #foo.}, e.message
end
it "raises when a non-digit is specified on an array" do
e = assert_raises(ArgumentError) { @evaluator.evaluate("/foo/bar") }
assert_equal %{Key operating on an array must be a digit or "-": bar.},
e.message
end
it "can evaluate on a schema object" do
schema = JsonSchema.parse!(DataScaffold.schema_sample)
evaluator = JsonPointer::Evaluator.new(schema)
res = evaluator.evaluate("#/definitions/app/definitions/contrived/allOf/0")
assert_kind_of JsonSchema::Schema, res
assert 30, res.max_length
end
def data
{
"foo" => ["bar", "baz"],
"" => 0,
"a/b" => 1,
"c%d" => 2,
"e^f" => 3,
"g|h" => 4,
"i\\j" => 5,
"k\"l" => 6,
" " => 7,
"m~n" => 8
}
end
end
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