cbor/test/tests.zig
2025-08-20 21:25:09 +02:00

772 lines
24 KiB
Zig

const std = @import("std");
const cbor_mod = @import("cbor");
const Io = std.Io;
const expect = std.testing.expect;
const expectEqual = std.testing.expectEqual;
const expectEqualDeep = std.testing.expectEqualDeep;
const expectEqualStrings = std.testing.expectEqualStrings;
const expectError = std.testing.expectError;
const fmt = cbor_mod.fmt;
const toJson = cbor_mod.toJson;
const toJsonPretty = cbor_mod.toJsonPretty;
const fromJson = cbor_mod.fromJson;
const fromJsonAlloc = cbor_mod.fromJsonAlloc;
const toJsonAlloc = cbor_mod.toJsonAlloc;
const toJsonPrettyAlloc = cbor_mod.toJsonPrettyAlloc;
const decodeType = cbor_mod.decodeType;
const matchInt = cbor_mod.matchInt;
const matchIntValue = cbor_mod.matchIntValue;
const matchValue = cbor_mod.matchValue;
const match = cbor_mod.match;
const isNull = cbor_mod.isNull;
const writeArrayHeader = cbor_mod.writeArrayHeader;
const writeMapHeader = cbor_mod.writeMapHeader;
const writeValue = cbor_mod.writeValue;
const extract = cbor_mod.extract;
const extractAlloc = cbor_mod.extractAlloc;
const extract_cbor = cbor_mod.extract_cbor;
const more = cbor_mod.more;
const any = cbor_mod.any;
const string = cbor_mod.string;
const number = cbor_mod.number;
const array = cbor_mod.array;
const map = cbor_mod.map;
test "cbor simple" {
var buf: [128]u8 = undefined;
try expectEqualDeep(
fmt(&buf, .{ "five", 5, "four", 4, .{ "three", 3 } }),
&[_]u8{ 0x85, 0x64, 0x66, 0x69, 0x76, 0x65, 0x05, 0x64, 0x66, 0x6f, 0x75, 0x72, 0x04, 0x82, 0x65, 0x74, 0x68, 0x72, 0x65, 0x65, 0x03 },
);
}
test "cbor exit message" {
var buf: [128]u8 = undefined;
try expectEqualDeep(
fmt(&buf, .{ "exit", "normal" }),
&[_]u8{ 0x82, 0x64, 0x65, 0x78, 0x69, 0x74, 0x66, 0x6E, 0x6F, 0x72, 0x6D, 0x61, 0x6C },
);
}
test "cbor error.OutOfMemory" {
var buf: [128]u8 = undefined;
try expectEqualDeep(
fmt(&buf, .{ "exit", error.OutOfMemory }),
&[_]u8{ 0x82, 0x64, 0x65, 0x78, 0x69, 0x74, 0x71, 0x65, 0x72, 0x72, 0x6F, 0x72, 0x2E, 0x4F, 0x75, 0x74, 0x4F, 0x66, 0x4D, 0x65, 0x6D, 0x6F, 0x72, 0x79 },
);
}
test "cbor error.OutOfMemory json" {
var buf: [128]u8 = undefined;
var json_buf: [128]u8 = undefined;
const cbor = fmt(&buf, .{ "exit", error.OutOfMemory });
try expectEqualDeep(toJson(cbor, &json_buf),
\\["exit","error.OutOfMemory"]
);
}
test "cbor.decodeType2" {
var buf = [_]u8{ 0x20, 0xDF };
var iter: []const u8 = &buf;
const t = try decodeType(&iter);
try expectEqual(t.major, 1);
try expectEqual(t.minor, 0);
try expectEqual(iter[0], 0xDF);
}
test "cbor.decodeType3" {
var buf = [_]u8{ 0x03, 0xDF };
var iter: []const u8 = &buf;
const t = try decodeType(&iter);
try expectEqual(t.major, 0);
try expectEqual(t.minor, 3);
try expectEqual(iter[0], 0xDF);
}
test "cbor.matchI64 small" {
var buf = [_]u8{ 1, 0xDF };
var iter: []const u8 = &buf;
var val: i64 = 0;
try expect(try matchInt(i64, &iter, &val));
try expectEqual(val, 1);
try expectEqual(iter[0], 0xDF);
}
test "cbor.matchI64 1byte" {
var buf = [_]u8{ 0x18, 0x1A, 0xDF };
var iter: []const u8 = &buf;
var val: i64 = 0;
try expect(try matchInt(i64, &iter, &val));
try expectEqual(val, 26);
try expectEqual(iter[0], 0xDF);
}
test "cbor.matchI64 2byte" {
var buf = [_]u8{ 0x19, 0x01, 0x07, 0xDF };
var iter: []const u8 = &buf;
var val: i64 = 0;
try expect(try matchInt(i64, &iter, &val));
try expectEqual(val, 263);
try expectEqual(iter[0], 0xDF);
}
test "cbor.matchI64 8byte" {
var buf = [_]u8{ 0x1B, 0x00, 0x00, 0xEF, 0x6F, 0xC1, 0x4A, 0x0A, 0x1F, 0xDF };
var iter: []const u8 = &buf;
var val: i64 = 0;
try expect(try matchInt(i64, &iter, &val));
try expectEqual(val, 263263263263263);
try expectEqual(iter[0], 0xDF);
}
test "cbor.matchI64 error.IntegerTooLarge" {
var buf = [_]u8{ 0x1B, 0xA9, 0x0A, 0xDE, 0x0D, 0x4E, 0x2B, 0x8A, 0x1F, 0xDF };
var iter: []const u8 = &buf;
var val: i64 = 0;
const result = matchInt(i64, &iter, &val);
try expectError(error.IntegerTooLarge, result);
}
test "cbor.matchI64 error.TooShort" {
var buf = [_]u8{ 0x19, 0x01 };
var iter: []const u8 = &buf;
var val: i64 = 0;
const result = matchInt(i64, &iter, &val);
try expectError(error.TooShort, result);
}
test "cbor.matchI64Value" {
var buf = [_]u8{ 7, 0xDF };
var iter: []const u8 = &buf;
try expect(try matchIntValue(i64, &iter, 7));
}
test "cbor.matchValue(i64)" {
var buf: [128]u8 = undefined;
var iter = fmt(&buf, 7);
try expect(try matchValue(&iter, 7));
}
test "cbor.matchValue(i64) multi" {
var buf: [128]u8 = undefined;
const iter = fmt(&buf, 7);
const iter2 = fmt(buf[iter.len..], 8);
var iter3: []const u8 = buf[0 .. iter.len + iter2.len];
try expect(try matchValue(&iter3, 7));
try expect(try matchValue(&iter3, 8));
}
test "cbor.match(.{i64...})" {
var buf: [128]u8 = undefined;
const v = .{ 5, 4, 3, 123456, 234567890 };
const m = fmt(&buf, v);
try expect(try match(m, v));
}
test "cbor.match(.{i64... more})" {
var buf: [128]u8 = undefined;
const v = .{ 5, 4, 3, 123456, 234567890, 6, 5, 4, 3, 2, 1 };
const m = fmt(&buf, v);
try expect(try match(m, .{ 5, 4, 3, more }));
}
test "cbor.match(.{any, i64... more})" {
var buf: [128]u8 = undefined;
const v = .{ "cbor", 4, 3, 123456, 234567890, 6, 5, 4, 3, 2, 1 };
const m = fmt(&buf, v);
try expect(try match(m, .{ any, 4, 3, more }));
}
test "cbor.match(.{types...})" {
var buf: [128]u8 = undefined;
const v = .{ "five", 5, "four", 4, .{ "three", 3 } };
const m = fmt(&buf, v);
try expect(try match(m, .{ string, number, string, number, array }));
try expect(!try match(m, .{ string, number, string, number }));
try expect(!try match(m, .{ number, string, number, array, any }));
try expect(try match(m, .{ any, number, string, number, any }));
try expect(try match(m, .{ "five", number, string, 4, any }));
try expect(try match(m, .{ "five", 5, "four", 4, array }));
try expect(try match(m, .{ "five", 5, more }));
try expect(try match(m, .{ "five", 5, "four", 4, array, more }));
try expect(!try match(m, .{ "five", 5, "four", 4, array, any }));
try expect(!try match(m, .{ "four", 5, "five", 4, array, any }));
try expect(try match(m, .{ "five", 5, "four", 4, .{ "three", 3 } }));
}
test "cbor.nulls" {
var buf: [128]u8 = undefined;
try expect(isNull(fmt(&buf, .{})));
try expect(!isNull(fmt(&buf, .{1})));
}
test "cbor.stream_writer" {
var buf: [128]u8 = undefined;
var writer: Io.Writer = .fixed(&buf);
try writeArrayHeader(&writer, 5);
try writeValue(&writer, "five");
try writeValue(&writer, 5);
try writeValue(&writer, "four");
try writeValue(&writer, 4);
try writeArrayHeader(&writer, 2);
try writeValue(&writer, "three");
try writeValue(&writer, 3);
try expect(try match(writer.buffered(), .{ "five", 5, "four", 4, .{ "three", 3 } }));
}
test "cbor.stream_object_writer" {
var buf: [128]u8 = undefined;
var writer: Io.Writer = .fixed(&buf);
try writeMapHeader(&writer, 3);
try writeValue(&writer, "five");
try writeValue(&writer, 5);
try writeValue(&writer, "four");
try writeValue(&writer, 4);
try writeValue(&writer, "three");
try writeValue(&writer, 3);
const obj = writer.buffered();
var json_buf: [128]u8 = undefined;
const json = try toJson(obj, &json_buf);
try expectEqualDeep(json,
\\{"five":5,"four":4,"three":3}
);
}
test "cbor.match_bool" {
var buf: [128]u8 = undefined;
const m = fmt(&buf, .{ false, true, 5, "five" });
try expect(try match(m, .{ false, true, 5, "five" }));
try expect(!try match(m, .{ true, false, 5, "five" }));
}
test "cbor.extract_match" {
var buf: [128]u8 = undefined;
var t: bool = false;
const extractor = extract(&t);
var iter = fmt(&buf, true);
try expect(try extractor.extract(&iter));
try expect(t);
iter = fmt(&buf, false);
try expect(try extractor.extract(&iter));
try expect(!t);
const m = fmt(&buf, .{ false, true, 5, "five" });
try expect(try match(m, .{ extract(&t), true, 5, "five" }));
try expect(!t);
try expect(try match(m, .{ false, extract(&t), 5, "five" }));
try expect(t);
var i: i64 = undefined;
try expect(try match(m, .{ false, true, extract(&i), "five" }));
try expect(i == 5);
var u: u64 = undefined;
try expect(try match(m, .{ false, true, extract(&u), "five" }));
try expect(u == 5);
var s: []const u8 = undefined;
try expect(try match(m, .{ false, true, 5, extract(&s) }));
try expect(std.mem.eql(u8, "five", s));
}
test "cbor.extract_cbor" {
var buf: [128]u8 = undefined;
const v = .{ "five", 5, "four", 4, .{ "three", 3 } };
const m = fmt(&buf, v);
try expect(try match(m, .{ "five", 5, "four", 4, .{ "three", 3 } }));
var sub: []const u8 = undefined;
try expect(try match(m, .{ "five", 5, "four", 4, extract_cbor(&sub) }));
try expect(try match(sub, .{ "three", 3 }));
}
test "cbor.extract_nested" {
var buf: [128]u8 = undefined;
const v = .{ "five", 5, "four", 4, .{ "three", 3 } };
const m = fmt(&buf, v);
var u: u64 = undefined;
try expect(try match(m, .{ "five", 5, "four", 4, .{ "three", extract(&u) } }));
try expect(u == 3);
}
test "cbor.match_map" {
var buf: [128]u8 = undefined;
const v = .{ "five", 5, "four", 4, .{ .three = 3 } };
const m = fmt(&buf, v);
try expect(try match(m, .{ "five", 5, "four", 4, map }));
}
test "cbor.extract_map_cbor" {
var buf: [128]u8 = undefined;
const v = .{ "five", 5, "four", 4, .{ .three = 3 } };
const m = fmt(&buf, v);
var map_cbor: []const u8 = undefined;
try expect(try match(m, .{ "five", 5, "four", 4, extract_cbor(&map_cbor) }));
var json_buf: [256]u8 = undefined;
const json = try toJson(map_cbor, &json_buf);
try expectEqualDeep(json,
\\{"three":3}
);
}
test "cbor.extract_map" {
var buf: [128]u8 = undefined;
const v = .{ "five", 5, "four", 4, .{ .three = 3 } };
const m = fmt(&buf, v);
var obj = std.json.ObjectMap.init(std.testing.allocator);
defer obj.deinit();
try expect(try match(m, .{ "five", 5, "four", 4, extract(&obj) }));
try expect(obj.contains("three"));
try expectEqual(obj.get("three").?, std.json.Value{ .integer = 3 });
}
test "cbor.extract_map_map" {
var buf: [128]u8 = undefined;
const v = .{ "five", 5, "four", 4, .{ .three = 3, .child = .{ .two = 2, .one = .{ 1, 2, 3, true, false, null } } } };
const m = fmt(&buf, v);
var a = std.heap.ArenaAllocator.init(std.testing.allocator);
defer a.deinit();
var obj = std.json.ObjectMap.init(a.allocator());
defer obj.deinit();
try expect(try match(m, .{ "five", 5, "four", 4, extract(&obj) }));
try expect(obj.contains("three"));
try expectEqual(obj.get("three").?, std.json.Value{ .integer = 3 });
var child = obj.get("child").?.object;
try expectEqual(child.get("two"), std.json.Value{ .integer = 2 });
var json_buf: [256]u8 = undefined;
const json = try toJson(m, &json_buf);
try expectEqualDeep(json,
\\["five",5,"four",4,{"three":3,"child":{"two":2,"one":[1,2,3,true,false,null]}}]
);
}
test "cbor.extract_value" {
var buf: [128]u8 = undefined;
const v = .{ "five", 5, "four", 4, .{ .three = 3 } };
const m = fmt(&buf, v);
var value = std.json.Value{ .null = {} };
var value_int = std.json.Value{ .null = {} };
try expect(try match(m, .{ "five", 5, extract(&value), extract(&value_int), any }));
try expectEqualDeep(value.string, "four");
try expectEqualDeep(value_int.integer, 4);
}
test "cbor.match_more_nested" {
var buf: [128]u8 = undefined;
const v = .{ .{124}, .{ "three", 3 } };
const m = fmt(&buf, v);
try expect(try match(m, .{ .{more}, .{more} }));
}
test "cbor.extract_number_limits" {
var buf: [128]u8 = undefined;
const bigint: u64 = 18446744073709551615;
var u: u64 = undefined;
var i: i64 = undefined;
const m = fmt(&buf, bigint);
try expect(try match(m, extract(&u)));
try expectError(error.IntegerTooLarge, match(m, extract(&i)));
}
test "cbor.toJson" {
var buf: [128]u8 = undefined;
var json_buf: [128]u8 = undefined;
const a = fmt(&buf, .{ "string\r\n", "\tstring\t", "\r\nstring" });
const json = try toJson(a, &json_buf);
try expect(try match(a, .{ "string\r\n", "\tstring\t", "\r\nstring" }));
try expectEqualDeep(json,
\\["string\r\n","\tstring\t","\r\nstring"]
);
}
test "cbor.toJson_object" {
var buf: [128]u8 = undefined;
var json_buf: [128]u8 = undefined;
const a = fmt(&buf, .{ .five = 5, .four = 4, .three = 3 });
const json = try toJson(a, &json_buf);
try expectEqualDeep(json,
\\{"five":5,"four":4,"three":3}
);
}
test "cbor.toJsonPretty_object" {
var buf: [128]u8 = undefined;
var json_buf: [128]u8 = undefined;
const a = fmt(&buf, .{ .five = 5, .four = 4, .three = 3 });
const json = try toJsonPretty(a, &json_buf);
try expectEqualDeep(json,
\\{
\\ "five": 5,
\\ "four": 4,
\\ "three": 3
\\}
);
}
test "cbor.fromJson_small" {
var cbor_buf: [128]u8 = undefined;
const json_buf: []const u8 =
\\[12345]
;
const cbor = try fromJson(json_buf, &cbor_buf);
try expect(try match(cbor, .{12345}));
}
test "cbor.fromJson" {
var cbor_buf: [128]u8 = undefined;
const json_buf: []const u8 =
\\["string\r\n","\tstring\t","\r\nstring",12345]
;
const cbor = try fromJson(json_buf, &cbor_buf);
try expect(try match(cbor, .{ "string\r\n", "\tstring\t", "\r\nstring", 12345 }));
}
test "cbor.fromJson_object" {
var cbor_buf: [128]u8 = undefined;
const json_buf: []const u8 =
\\{"five":5,"four":4,"three":3}
;
const cbor = try fromJson(json_buf, &cbor_buf);
try expect(try match(cbor, map));
}
test "cbor f32" {
var buf: [128]u8 = undefined;
try expectEqualDeep(
fmt(&buf, .{ "float", @as(f32, 0.96891385316848755) }),
&[_]u8{
0x82, // 82 # array(2)
0x65, // 65 # text(5)
0x66, // 666C6F6174 # "float"
0x6C,
0x6F,
0x61,
0x74,
0xfa, // FA 3F780ABD # primitive(1064831677)
0x3F,
0x78,
0x0A,
0xBD,
},
);
}
test "cbor.fromJson_object f32" {
var buf: [128]u8 = undefined;
const json_buf: []const u8 =
\\["float",0.96891385316848755]
;
const cbor = try fromJson(json_buf, &buf);
try expect(try match(cbor, array));
try expectEqualDeep(
&[_]u8{
0x82, // 82 # array(2)
0x65, // 65 # text(5)
0x66, // 666C6F6174 # "float"
0x6C,
0x6F,
0x61,
0x74,
0xfb, // FB 3FEF0157A0000000 # primitive(4606902419681443840)
0x3f,
0xef,
0x01,
0x57,
0xa0,
0x00,
0x00,
0x00,
},
cbor,
);
}
test "cbor.extract_match_f32" {
var buf: [128]u8 = undefined;
const json_buf: []const u8 =
\\["float",0.96891385316848755]
;
const m = try fromJson(json_buf, &buf);
try expect(try match(m, .{ "float", @as(f64, 0.96891385316848755) }));
var f: f64 = undefined;
try expect(try match(m, .{ "float", extract(&f) }));
try expectEqual(0.96891385316848755, f);
}
test "cbor.extract_cbor f64" {
var buf: [128]u8 = undefined;
const json_buf: []const u8 =
\\["float",[0.96891385316848755],"check"]
;
const m = try fromJson(json_buf, &buf);
var sub: []const u8 = undefined;
try expect(try match(m, .{ "float", extract_cbor(&sub), "check" }));
const json = try toJsonPrettyAlloc(std.testing.allocator, sub);
defer std.testing.allocator.free(json);
const json2 = try toJsonAlloc(std.testing.allocator, sub);
defer std.testing.allocator.free(json2);
try expectEqualStrings("[0.9689138531684875]", json2);
}
test "cbor.writeValue enum" {
const TestEnum = enum { a, b };
var buf: [128]u8 = undefined;
var writer: Io.Writer = .fixed(&buf);
try writeValue(&writer, TestEnum.a);
const expected = @tagName(TestEnum.a);
var m = std.json.Value{ .null = {} };
try expect(try match(writer.buffered(), extract(&m)));
try expectEqualStrings(expected, m.string);
}
test "cbor.extract enum" {
const TestEnum = enum { a, b };
var buf: [128]u8 = undefined;
var writer: Io.Writer = .fixed(&buf);
try writeValue(&writer, TestEnum.a);
var m: TestEnum = undefined;
try expect(try match(writer.buffered(), extract(&m)));
try expectEqualStrings(@tagName(m), @tagName(TestEnum.a));
try expect(m == .a);
}
test "cbor.writeValue tagged union" {
const TestUnion = union(enum) { a: f32, b: []const u8 };
var buf: [128]u8 = undefined;
var writer: Io.Writer = .fixed(&buf);
try writeValue(&writer, TestUnion{ .b = "should work" });
var tagName = std.json.Value{ .null = {} };
var value = std.json.Value{ .null = {} };
var iter: []const u8 = writer.buffered();
try expect(try matchValue(&iter, .{ extract(&tagName), extract(&value) }));
try expectEqualStrings(@tagName(TestUnion.b), tagName.string);
try expectEqualStrings("should work", value.string);
}
test "cbor.writeValue tagged union no payload types" {
const TestUnion = union(enum) { a, b };
var buf: [128]u8 = undefined;
var writer: Io.Writer = .fixed(&buf);
try writeValue(&writer, TestUnion.b);
try expect(try match(writer.buffered(), @tagName(TestUnion.b)));
var tagName = std.json.Value{ .null = {} };
try expect(try match(writer.buffered(), extract(&tagName)));
try expectEqualStrings(@tagName(TestUnion.b), tagName.string);
}
test "cbor.writeValue nested union json" {
const TestUnion = union(enum) {
a: f32,
b: []const u8,
c: []const union(enum) {
d: f32,
e: i32,
f,
},
};
var buf: [256]u8 = undefined;
var writer: Io.Writer = .fixed(&buf);
var arena = std.heap.ArenaAllocator.init(std.testing.allocator);
defer arena.deinit();
try writeValue(&writer, TestUnion{ .c = &.{ .{ .d = 1.5 }, .{ .e = 5 }, .f } });
var json_buf: [128]u8 = undefined;
const json = try toJson(writer.buffered(), &json_buf);
try expectEqualStrings(json,
\\["c",[["d",1.5],["e",5],["f"]]]
);
}
test "cbor.extract tagged union" {
const TestUnion = union(enum) { a: f32, b: []const u8 };
var buf: [128]u8 = undefined;
var writer: Io.Writer = .fixed(&buf);
try writeValue(&writer, TestUnion{ .b = "should work" });
var m: TestUnion = undefined;
try expect(try match(writer.buffered(), extract(&m)));
try expectEqualDeep(TestUnion{ .b = "should work" }, m);
}
test "cbor.extract nested union" {
const TestUnion = union(enum) {
a: f32,
b: []const u8,
c: []const union(enum) {
d: f32,
e: i32,
f,
},
};
var buf: [256]u8 = undefined;
var writer: Io.Writer = .fixed(&buf);
var arena = std.heap.ArenaAllocator.init(std.testing.allocator);
const allocator = arena.allocator();
defer arena.deinit();
try writeValue(&writer, TestUnion{ .c = &.{ .{ .d = 1.5 }, .{ .e = 5 }, .f } });
var m: TestUnion = undefined;
try expect(try match(writer.buffered(), extractAlloc(&m, allocator)));
try expectEqualDeep(TestUnion{ .c = &.{ .{ .d = 1.5 }, .{ .e = 5 }, .f } }, m);
}
test "cbor.extract struct no fields" {
const TestStruct = struct {};
var buf: [128]u8 = undefined;
var writer: Io.Writer = .fixed(&buf);
try writeValue(&writer, TestStruct{});
var m: TestStruct = undefined;
try expect(try match(writer.buffered(), extract(&m)));
try expectEqualDeep(TestStruct{}, m);
}
test "cbor.extract_cbor struct" {
const TestStruct = struct {
a: f32,
b: []const u8,
};
var buf: [128]u8 = undefined;
const v = TestStruct{ .a = 1.5, .b = "hello" };
const m = fmt(&buf, v);
var map_cbor: []const u8 = undefined;
try expect(try match(m, extract_cbor(&map_cbor)));
var json_buf: [256]u8 = undefined;
const json = try toJson(map_cbor, &json_buf);
try expectEqualStrings(json,
\\{"a":1.5,"b":"hello"}
);
}
test "cbor.extract struct" {
const TestStruct = struct {
a: f32,
b: []const u8,
};
var buf: [128]u8 = undefined;
var writer: Io.Writer = .fixed(&buf);
const v = TestStruct{ .a = 1.5, .b = "hello" };
try writeValue(&writer, v);
var obj: TestStruct = undefined;
var json_buf: [256]u8 = undefined;
var iter: []const u8 = writer.buffered();
const t = try decodeType(&iter);
try expectEqual(5, t.major);
const json = try toJson(writer.buffered(), &json_buf);
try expectEqualStrings(json,
\\{"a":1.5,"b":"hello"}
);
try expect(try match(writer.buffered(), extract(&obj)));
try expectEqual(1.5, obj.a);
try expectEqualStrings("hello", obj.b);
}
test "cbor.extractAlloc struct" {
const TestStruct = struct {
a: f32,
b: []const u8,
};
var buf: [128]u8 = undefined;
var writer: Io.Writer = .fixed(&buf);
var arena = std.heap.ArenaAllocator.init(std.testing.allocator);
const allocator = arena.allocator();
defer arena.deinit();
const v = TestStruct{ .a = 1.5, .b = "hello" };
try writeValue(&writer, v);
var obj: TestStruct = undefined;
try expect(try match(writer.buffered(), extractAlloc(&obj, allocator)));
try expectEqual(1.5, obj.a);
try expectEqualStrings("hello", obj.b);
}
fn test_value_write_and_extract(T: type, value: T) !void {
const test_value: T = value;
var buf: [1024]u8 = undefined;
var writer: Io.Writer = .fixed(&buf);
try writeValue(&writer, test_value);
var result_value: T = undefined;
var iter: []const u8 = writer.buffered();
try expect(try matchValue(&iter, extract(&result_value)));
switch (comptime @typeInfo(T)) {
.pointer => |ptr_info| switch (ptr_info.size) {
.slice => if (ptr_info.child == u8) return expectEqualStrings(test_value, result_value),
else => {},
},
.optional => |opt_info| switch (comptime @typeInfo(opt_info.child)) {
.pointer => |ptr_info| switch (ptr_info.size) {
.slice => if (ptr_info.child == u8) {
if (test_value == null and result_value == null) return;
if (test_value == null or result_value == null) return error.TestExpectedEqual;
return expectEqualStrings(test_value.?, result_value.?);
},
else => {},
},
else => {},
},
else => {},
}
return expectEqual(test_value, result_value);
}
test "read/write optional bool (null)" {
try test_value_write_and_extract(?bool, null);
}
test "read/write optional bool (true)" {
try test_value_write_and_extract(?bool, true);
}
test "read/write optional bool (false)" {
try test_value_write_and_extract(?bool, false);
}
test "read/write optional string (null)" {
try test_value_write_and_extract(?[]const u8, null);
}
test "read/write optional string (non-null)" {
try test_value_write_and_extract(?[]const u8, "TESTME");
}
test "read/write optional struct (null)" {
try test_value_write_and_extract(?struct { field: usize }, null);
}
test "read/write optional struct (non-null)" {
try test_value_write_and_extract(?struct { field: usize }, .{ .field = 42 });
}
test "read/write struct optional field (null)" {
try test_value_write_and_extract(struct { field: ?usize }, .{ .field = null });
}
test "read/write struct optional field (non-null)" {
try test_value_write_and_extract(struct { field: ?usize }, .{ .field = 42 });
}
test "read/write optional struct optional field (null) (na)" {
try test_value_write_and_extract(?struct { field: ?usize }, null);
}
test "read/write optional struct optional field (non-null) (null)" {
try test_value_write_and_extract(?struct { field: ?usize }, .{ .field = null });
}
test "read/write optional struct optional field (non-null) (non=null)" {
try test_value_write_and_extract(?struct { field: ?usize }, .{ .field = 42 });
}