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chore: Dafny test code changes for Python #1911

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May 27, 2025
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Merge branch 'main' into python-dafny-changes
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21 changes: 14 additions & 7 deletions DynamoDbEncryption/dafny/DynamoDbEncryption/test/DynamoToStruct.dfy
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Original file line number Diff line number Diff line change
Expand Up @@ -376,7 +376,8 @@ module DynamoToStructTest {
//= type=test
//# Entries in a String Set MUST be ordered in ascending [UTF-16 binary order](./string-ordering.md#utf-16-binary-order).
method {:test} TestSortSSAttr() {
var stringSetValue := AttributeValue.SS(["&","｡","𐀂"]);
// "\ud800\udc02" <-> "𐀂"
var stringSetValue := AttributeValue.SS(["&","｡","\ud800\udc02"]);
// Note that string values are UTF-8 encoded, but sorted by UTF-16 encoding.
var encodedStringSetData := StructuredDataTerminal(value := [
0,0,0,3, // 3 entries in set
Expand All @@ -395,7 +396,8 @@ module DynamoToStructTest {

var newStringSetValue := StructuredToAttr(encodedStringSetData);
expect newStringSetValue.Success?;
expect newStringSetValue.value == AttributeValue.SS(["&","𐀂","｡"]);
// "\ud800\udc02" <-> "𐀂"
expect newStringSetValue.value == AttributeValue.SS(["&","\ud800\udc02","｡"]);
}

//= specification/dynamodb-encryption-client/ddb-attribute-serialization.md#set-entries
Expand All @@ -415,11 +417,13 @@ module DynamoToStructTest {

method {:test} TestSetsInListAreSorted() {
var nSetValue := AttributeValue.NS(["2","1","10"]);
var sSetValue := AttributeValue.SS(["&","｡","𐀂"]);
// "\ud800\udc02" <-> "𐀂"
var sSetValue := AttributeValue.SS(["&","｡","\ud800\udc02"]);
var bSetValue := AttributeValue.BS([[1,0],[1],[2]]);

var sortedNSetValue := AttributeValue.NS(["1","10","2"]);
var sortedSSetValue := AttributeValue.SS(["&","𐀂","｡"]);
// "\ud800\udc02" <-> "𐀂"
var sortedSSetValue := AttributeValue.SS(["&","\ud800\udc02","｡"]);
var sortedBSetValue := AttributeValue.BS([[1],[1,0],[2]]);

var listValue := AttributeValue.L([nSetValue, sSetValue, bSetValue]);
Expand All @@ -444,11 +448,13 @@ module DynamoToStructTest {

method {:test} TestSetsInMapAreSorted() {
var nSetValue := AttributeValue.NS(["2","1","10"]);
var sSetValue := AttributeValue.SS(["&","｡","𐀂"]);
// "\ud800\udc02" <-> "𐀂"
var sSetValue := AttributeValue.SS(["&","｡","\ud800\udc02"]);
var bSetValue := AttributeValue.BS([[1,0],[1],[2]]);

var sortedNSetValue := AttributeValue.NS(["1","10","2"]);
var sortedSSetValue := AttributeValue.SS(["&","𐀂","｡"]);
// "\ud800\udc02" <-> "𐀂"
var sortedSSetValue := AttributeValue.SS(["&","\ud800\udc02","｡"]);
var sortedBSetValue := AttributeValue.BS([[1],[1,0],[2]]);

var mapValue := AttributeValue.M(map["keyA" := sSetValue, "keyB" := nSetValue, "keyC" := bSetValue]);
Expand Down Expand Up @@ -490,7 +496,8 @@ module DynamoToStructTest {
method {:test} TestSortMapKeys() {
var nullValue := AttributeValue.NULL(true);

var mapValue := AttributeValue.M(map["&" := nullValue, "｡" := nullValue, "𐀂" := nullValue]);
// "\ud800\udc02" <-> "𐀂"
var mapValue := AttributeValue.M(map["&" := nullValue, "｡" := nullValue, "\ud800\udc02" := nullValue]);

// Note that the string values are encoded as UTF-8, but are sorted according to UTF-16 encoding.
var encodedMapData := StructuredDataTerminal(
Expand Down
10 changes: 5 additions & 5 deletions TestVectors/dafny/DDBEncryption/src/WriteManifest.dfy
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Expand Up @@ -218,11 +218,11 @@ module {:options "-functionSyntax:4"} WriteManifest {
const DoNothing : CryptoAction := 3

const A : string := "A"
const B : string := "퀀" // Ud000"
const C : string := "﹌" // Ufe4c"
const D : string := "𐀁" // U10001
const E : string := "𐀂" // U10002 - same high surrogate as D
const F : string := "𠀂" // U20002 - different high surrogate as D
const B : string := "\ud000" // "Ud000" <-> "퀀"
const C : string := "\ufe4c" // "Ufe4c" <-> "﹌"
const D : string := "\uD800\uDC01" // "U10001" <-> "𐀁" (surrogate pair: "\uD800\uDC01")
const E : string := "\uD800\uDC02" // "U10002" <-> "𐀂" (same high surrogate as D: "\uD800\uDC02")
const F : string := "\uD840\uDC02" // "U20002" <-> "𠀂" (different high surrogate as D: "\D840\uDC02")

lemma CheckLengths()
ensures |A| == 1
Expand Down
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