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Add Kaitai Struct Decode operation

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Kendall Goto 2025-04-04 22:13:54 -07:00
parent 7c8be12d52
commit 73d069decc
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6 changed files with 294 additions and 1 deletions
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1
tests/operations/index.mjs
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@ -97,6 +97,7 @@ import "./tests/JWK.mjs";
import "./tests/JWTDecode.mjs";
import "./tests/JWTSign.mjs";
import "./tests/JWTVerify.mjs";
import "./tests/KaitaiStructDecode.mjs";
import "./tests/LevenshteinDistance.mjs";
import "./tests/Lorenz.mjs";
import "./tests/LS47.mjs";

66
tests/operations/tests/KaitaiStructDecode.mjs Normal file
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@ -0,0 +1,66 @@
/**
* @author kendallgoto [k@kgo.to]
* @copyright Crown Copyright 2025
* @license Apache-2.0
*/
import TestRegister from "../../lib/TestRegister.mjs";
TestRegister.addTests([
{
"name": "Kaitai Struct Decode: Gif Decode",
"input": "R0lGODdhIAA0APABAP",
"expectedOutput": "[71,73,70]",
"recipeConfig": [
{
"op": "From Base64",
"args": ["A-Za-z0-9+/=", true]
},
{
"op": "Kaitai Struct Decode",
"args": [
// https://kaitai.io/#quick-start
"meta:\n id: gif\n file-extension: gif\n endian: le\nseq:\n - id: header\n type: header\n - id: logical_screen\n type: logical_screen\ntypes:\n header:\n seq:\n - id: magic\n contents: 'GIF'\n - id: version\n size: 3\n logical_screen:\n seq:\n - id: image_width\n type: u2\n - id: image_height\n type: u2\n - id: flags\n type: u1\n - id: bg_color_index\n type: u1\n - id: pixel_aspect_ratio\n type: u1",
],
},
{
"op": "Jq",
"args": [
".header.magic",
],
},
],
},
{
"name": "Kaitai Struct Decode: Incomplete Error",
"input": "",
"expectedOutput": "EOFError: requested 1 bytes, but only 0 bytes available",
"recipeConfig": [
{
"op": "Kaitai Struct Decode",
"args": [
"seq:\n- id: entry\n type: u1\n repeat: expr\n repeat-expr: 10", // read 10 uint8s, one by one
],
}
],
},
{
"name": "Kaitai Struct Decode: Incomplete Error (ignored)",
"input": "\x00\x01\x02\x03\x04",
"expectedOutput": "[0,1,2,3,4]",
"recipeConfig": [
{
"op": "Kaitai Struct Decode",
"args": [
"seq:\n- id: entry\n type: u1\n repeat: expr\n repeat-expr: 10", // read 10 uint8s, one by one
true
],
},
{
"op": "Jq",
"args": [
".entry",
],
},
],
}
]);