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test: add round-trip validation for Memo serialization #721

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Merged
overcat merged 1 commit into from
Jul 23, 2025
Merged

test: add round-trip validation for Memo serialization #721

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15 changes: 15 additions & 0 deletions src/test/kotlin/org/stellar/sdk/MemoTest.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,7 @@ class MemoTest :
val memo = Memo.none()
memo.toXdr().discriminant shouldBe MemoType.MEMO_NONE
memo.toString() shouldBe ""
Memo.fromXdr(memo.toXdr()) shouldBe memo
}
}

Expand All @@ -24,6 +25,7 @@ class MemoTest :
memo.text shouldBe "test"
memo.bytes shouldBe "test".toByteArray(StandardCharsets.UTF_8)
memo.toString() shouldBe "test"
Memo.fromXdr(memo.toXdr()) shouldBe memo
}

test("should create text memo from empty string") {
Expand All @@ -32,6 +34,10 @@ class MemoTest :
memo.text shouldBe ""
memo.bytes shouldBe "".toByteArray(StandardCharsets.UTF_8)
memo.toString() shouldBe ""
Memo.fromXdr(memo.toXdr()) shouldBe memo

// https://discord.com/channels/897514728459468821/1082043640140017664/1397339401713094778
org.stellar.sdk.xdr.Memo.fromXdrBase64(memo.toXdr().toXdrBase64())
}

test("should create text memo with UTF-8 content") {
Expand All @@ -40,6 +46,7 @@ class MemoTest :
memo.text shouldBe "三"
memo.bytes shouldBe "三".toByteArray(StandardCharsets.UTF_8)
memo.toString() shouldBe "三"
Memo.fromXdr(memo.toXdr()) shouldBe memo
}

test("should create text memo with exactly 28 bytes") {
Expand All @@ -50,6 +57,7 @@ class MemoTest :
memo.text shouldBe text
memo.bytes shouldBe text.toByteArray(StandardCharsets.UTF_8)
memo.toString() shouldBe text
Memo.fromXdr(memo.toXdr()) shouldBe memo
}

test("should throw exception when text is too long") {
Expand All @@ -74,6 +82,7 @@ class MemoTest :
memo.toXdr().discriminant shouldBe MemoType.MEMO_ID
memo.toXdr().id.uint64.number shouldBe BigInteger.valueOf(9223372036854775807L)
memo.toString() shouldBe "9223372036854775807"
Memo.fromXdr(memo.toXdr()) shouldBe memo
}

test("should create id memo with 0") {
Expand All @@ -82,6 +91,7 @@ class MemoTest :
memo.toXdr().discriminant shouldBe MemoType.MEMO_ID
memo.toXdr().id.uint64.number shouldBe BigInteger.ZERO
memo.toString() shouldBe "0"
Memo.fromXdr(memo.toXdr()) shouldBe memo
}

test("should throw exception when id is negative") {
Expand All @@ -98,6 +108,7 @@ class MemoTest :
memo.bytes shouldBe bytes
memo.hexValue shouldBe "4141414141414141414141414141414141414141414141414141414141414141"
memo.toString() shouldBe "4141414141414141414141414141414141414141414141414141414141414141"
Memo.fromXdr(memo.toXdr()) shouldBe memo
}

test("should create hash memo from hex string") {
Expand All @@ -114,6 +125,7 @@ class MemoTest :
memo.toXdr().discriminant shouldBe MemoType.MEMO_HASH
memo.hexValue shouldBe hashHex.lowercase()
memo.toString() shouldBe hashHex.lowercase()
Memo.fromXdr(memo.toXdr()) shouldBe memo
}

test("should throw exception when bytes are not 32-bytes long") {
Expand Down Expand Up @@ -143,6 +155,7 @@ class MemoTest :
memo.bytes shouldBe bytes
memo.hexValue shouldBe "4141414141414141414141414141414141414141414141414141414141414141"
memo.toString() shouldBe "4141414141414141414141414141414141414141414141414141414141414141"
Memo.fromXdr(memo.toXdr()) shouldBe memo
}

test("should create return hash memo from hex string") {
Expand All @@ -151,6 +164,7 @@ class MemoTest :
memo.toXdr().discriminant shouldBe MemoType.MEMO_RETURN
memo.hexValue shouldBe hashHex.lowercase()
memo.toString() shouldBe hashHex.lowercase()
Memo.fromXdr(memo.toXdr()) shouldBe memo
}

test("should create return hash memo from uppercase hex string") {
Expand All @@ -159,6 +173,7 @@ class MemoTest :
memo.toXdr().discriminant shouldBe MemoType.MEMO_RETURN
memo.hexValue shouldBe hashHex.lowercase()
memo.toString() shouldBe hashHex.lowercase()
Memo.fromXdr(memo.toXdr()) shouldBe memo
}

test("should throw exception when bytes are not 32-bytes long") {
Expand Down
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