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| 1 | +describe("Utils.stringify", function() |
| 2 | + local utils = require("Modules/Utils") |
| 3 | + |
| 4 | + -- Parses stringify output back into a Lua value |
| 5 | + local function serializeAndLoad(value, allowNewlines) |
| 6 | + local str = utils.stringify(value, allowNewlines) |
| 7 | + local chunk, err = loadstring("return "..str) |
| 8 | + assert.is_truthy(chunk) |
| 9 | + return chunk(), str |
| 10 | + end |
| 11 | + |
| 12 | + describe("scalars", function() |
| 13 | + it("stringifies strings with quotes", function() |
| 14 | + assert.equal('"hello"', utils.stringify("hello")) |
| 15 | + end) |
| 16 | + |
| 17 | + it("strips newlines from strings by default", function() |
| 18 | + assert.equal('"a b"', utils.stringify("a\nb")) |
| 19 | + end) |
| 20 | + |
| 21 | + it("preserves newlines when allowed", function() |
| 22 | + local out = serializeAndLoad("a\nb", true) |
| 23 | + assert.equal("a\nb", out) |
| 24 | + end) |
| 25 | + |
| 26 | + it("does not use long string form for newline-free strings", function() |
| 27 | + assert.equal('"ab"', utils.stringify("ab", true)) |
| 28 | + end) |
| 29 | + |
| 30 | + it("escapes quotes and backslashes", function() |
| 31 | + local input = 'a"b\\c' |
| 32 | + local out = serializeAndLoad(input, true) |
| 33 | + assert.equal(input, out) |
| 34 | + end) |
| 35 | + |
| 36 | + it("preserves carriage returns and long-string delimiters when allowed", function() |
| 37 | + local input = "a\r\n]]b" |
| 38 | + local out = serializeAndLoad(input, true) |
| 39 | + assert.equal(input, out) |
| 40 | + end) |
| 41 | + |
| 42 | + it("normalizes all newline forms when newlines are disabled", function() |
| 43 | + assert.equal('"a b c"', utils.stringify("a\r\nb\rc")) |
| 44 | + end) |
| 45 | + |
| 46 | + it("stringifies numbers", function() |
| 47 | + assert.equal("42", utils.stringify(42)) |
| 48 | + assert.equal("-3.5", utils.stringify(-3.5)) |
| 49 | + end) |
| 50 | + |
| 51 | + it("stringifies booleans", function() |
| 52 | + assert.equal("true", utils.stringify(true)) |
| 53 | + assert.equal("false", utils.stringify(false)) |
| 54 | + end) |
| 55 | + |
| 56 | + it("stringifies nil", function() |
| 57 | + assert.equal("nil", utils.stringify(nil)) |
| 58 | + end) |
| 59 | + |
| 60 | + -- supposedly these are valid table keys, but like come on |
| 61 | + it("errors on disallowed types", function() |
| 62 | + assert.has_error(function() utils.stringify(function() end) end) |
| 63 | + assert.has_error(function() utils.stringify({[ function() end ] = "hello"}) end) |
| 64 | + end) |
| 65 | + end) |
| 66 | + |
| 67 | + describe("tables", function() |
| 68 | + it("serializes and loads an empty table", function() |
| 69 | + local out = serializeAndLoad({}) |
| 70 | + assert.same({}, out) |
| 71 | + end) |
| 72 | + |
| 73 | + it("serializes and loads an array using array syntax", function() |
| 74 | + local input = { 1, 2, 3 } |
| 75 | + local out, str = serializeAndLoad(input) |
| 76 | + assert.same(input, out) |
| 77 | + -- array entries should not include explicit keys |
| 78 | + assert.is_nil(str:find("%[1%]")) |
| 79 | + end) |
| 80 | + |
| 81 | + it("serializes and loads a string-keyed map", function() |
| 82 | + local input = { foo = "bar", baz = 1 } |
| 83 | + local out = serializeAndLoad(input) |
| 84 | + assert.same(input, out) |
| 85 | + end) |
| 86 | + |
| 87 | + it("serializes and loads nested tables (no mixed array/map levels)", function() |
| 88 | + local input = { a = { b = { c = { deep = true, value = 3 } } }, list = { "x", "y" } } |
| 89 | + local out = serializeAndLoad(input) |
| 90 | + assert.same(input, out) |
| 91 | + end) |
| 92 | + |
| 93 | + it("sorts map keys deterministically", function() |
| 94 | + local str = utils.stringify({ c = 1, a = 1, b = 1 }) |
| 95 | + local posA = str:find('%["a"%]') |
| 96 | + local posB = str:find('%["b"%]') |
| 97 | + local posC = str:find('%["c"%]') |
| 98 | + assert.is_truthy(posA < posB and posB < posC) |
| 99 | + end) |
| 100 | + |
| 101 | + it("serializes and loads numeric (non-sequential) keys", function() |
| 102 | + local input = { [5] = "five", [10] = "ten" } |
| 103 | + local out = serializeAndLoad(input) |
| 104 | + assert.same(input, out) |
| 105 | + end) |
| 106 | + |
| 107 | + it("serializes and loads multiline string values when allowed", function() |
| 108 | + local input = { text = "line1\nline2" } |
| 109 | + local out = serializeAndLoad(input, true) |
| 110 | + assert.same(input, out) |
| 111 | + end) |
| 112 | + |
| 113 | + it("serializes and loads escaped multiline string keys", function() |
| 114 | + local input = { ['a"\\b\n]]c'] = true } |
| 115 | + local out = serializeAndLoad(input, true) |
| 116 | + assert.same(input, out) |
| 117 | + end) |
| 118 | + |
| 119 | + it("serializes and loads mixed tables", function() |
| 120 | + local input = {"one", "two", six = 7, 3, 4, five = "six"} |
| 121 | + local str = utils.stringify(input, false, 1) |
| 122 | + assert.equal([[{ |
| 123 | + "one", |
| 124 | + "two", |
| 125 | + 3, |
| 126 | + 4, |
| 127 | + ["five"] = "six", |
| 128 | + ["six"] = 7, |
| 129 | +}]], str) |
| 130 | + local out = serializeAndLoad(input) |
| 131 | + assert.same(input, out) |
| 132 | + end) |
| 133 | + end) |
| 134 | +end) |
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