147 lines
3.6 KiB
Crystal
147 lines
3.6 KiB
Crystal
require "../spec_helper"
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class ExampleA
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include CBOR::Serializable
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property a : Int32
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property b : Array(Int32)
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end
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class ExampleB
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include CBOR::Serializable
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@[CBOR::Field(key: "Fun")]
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property is_fun : Bool
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@[CBOR::Field(key: "Amt")]
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property amt : Int32
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end
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class ExampleC
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include CBOR::Serializable
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property b : String
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end
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class ExampleStrict
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include CBOR::Serializable
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property a : Int32
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end
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class ExampleUnmapped
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include CBOR::Serializable
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include CBOR::Serializable::Unmapped
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property a : Int32
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end
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class Location
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include CBOR::Serializable
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@[CBOR::Field(key: "lat")]
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property latitude : Float64
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@[CBOR::Field(key: "lng")]
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property longitude : Float64
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def initialize(@latitude, @longitude)
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end
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end
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class House
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include CBOR::Serializable
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property address : String
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property location : Location?
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def initialize(@address, @location)
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end
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end
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struct A
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include CBOR::Serializable
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@a : Int32
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@b : Float64 = 1.0
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end
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describe CBOR::Serializable do
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describe "rfc examples" do
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describe %(example {_ "a": 1, "b": [_ 2, 3]}) do
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it "decodes from cbor" do
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result = ExampleA.from_cbor(Bytes[0xbf, 0x61, 0x61, 0x01, 0x61, 0x62, 0x9f, 0x02, 0x03, 0xff, 0xff])
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result.a.should eq(1)
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result.b.should eq([2, 3])
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end
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end
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describe %(example {_ "Fun": true, "Amt": -2}) do
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it "decodes from cbor" do
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result = ExampleB.from_cbor(Bytes[0xbf, 0x63, 0x46, 0x75, 0x6e, 0xf5, 0x63, 0x41, 0x6d, 0x74, 0x21, 0xff])
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result.is_fun.should be_true
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result.amt.should eq(-2)
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end
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end
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describe %(example ["a", {_ "b": "c"}]) do
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it "decodes from cbor" do
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result = Array(String | ExampleC).from_cbor(Bytes[0x82, 0x61, 0x61, 0xbf, 0x61, 0x62, 0x61, 0x63, 0xff])
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result.size.should eq(2)
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result[0].as(String).should eq("a")
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result[1].as(ExampleC).b.should eq("c")
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end
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end
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end
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describe "strict by default" do
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it "errors on missing fields" do
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expect_raises(CBOR::ParseError) do
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ExampleStrict.from_cbor(Bytes[0xbf, 0x61, 0x61, 0x01, 0x61, 0x62, 0x9f, 0x02, 0x03, 0xff, 0xff])
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end
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end
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end
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describe CBOR::Serializable::Unmapped do
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it "adds missing fields to the map" do
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result = ExampleUnmapped.from_cbor(Bytes[0xbf, 0x61, 0x61, 0x01, 0x61, 0x62, 0x9f, 0x02, 0x03, 0xff, 0xff])
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result.a.should eq(1)
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result.cbor_unmapped.should eq({"b" => [2, 3]})
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end
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end
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describe "documentation examples" do
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describe "house example" do
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houses = [House.new(address: "Crystal Road 1234", location: Location.new(latitude: 12.3, longitude: 34.5))]
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cbor_houses_bytes = Bytes[129, 191, 103, 97, 100, 100, 114, 101, 115, 115, 113, 67, 114, 121, 115, 116, 97, 108, 32, 82, 111, 97, 100, 32, 49, 50, 51, 52, 104, 108, 111, 99, 97, 116, 105, 111, 110, 191, 99, 108, 97, 116, 251, 64, 40, 153, 153, 153, 153, 153, 154, 99, 108, 110, 103, 251, 64, 65, 64, 0, 0, 0, 0, 0, 255, 255]
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it "encodes to cbor" do
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cbor = houses.to_cbor
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cbor.should eq(cbor_houses_bytes)
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end
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it "decodes form cbor" do
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decoded = Array(House).from_cbor(cbor_houses_bytes)
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decoded.size.should eq(1)
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house = decoded[0]
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house.address.should eq("Crystal Road 1234")
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loc = house.location
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loc.should_not be_nil
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loc.not_nil!.latitude.should eq(12.3)
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loc.not_nil!.longitude.should eq(34.5)
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end
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end
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describe "default values example" do
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it "respects default values" do
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A.from_cbor({"a" => 1}.to_cbor).inspect.should eq("A(@a=1, @b=1.0)")
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end
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end
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end
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end
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