30 lines
1.5 KiB
Java
30 lines
1.5 KiB
Java
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package com.baiyue.common.event;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import org.junit.jupiter.api.Test;
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import static org.junit.jupiter.api.Assertions.assertArrayEquals;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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import static org.junit.jupiter.api.Assertions.assertNotEquals;
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class EventPayloadCanonicalizerTest {
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private final ObjectMapper json = new ObjectMapper();
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@Test
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void equivalentNumberLexemesHaveTheSameCanonicalFormAndHash() throws Exception {
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var scaled = json.readTree("{\"weight\":30.0,\"volume\":0.3150,\"quantity\":3}");
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var normalized = json.readTree("{\"quantity\":3.0,\"volume\":0.315,\"weight\":3E+1}");
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assertArrayEquals(EventPayloadCanonicalizer.canonicalize(scaled), EventPayloadCanonicalizer.canonicalize(normalized));
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assertEquals(EventPayloadHash.sha256(EventPayloadCanonicalizer.canonicalize(scaled)),
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EventPayloadHash.sha256(EventPayloadCanonicalizer.canonicalize(normalized)));
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}
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@Test
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void negativeZeroIsZeroAndLegacyHashRemainsAvailable() throws Exception {
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var negativeZero = json.readTree("{\"value\":-0.000}");
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var zero = json.readTree("{\"value\":0}");
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assertArrayEquals(EventPayloadCanonicalizer.canonicalize(negativeZero), EventPayloadCanonicalizer.canonicalize(zero));
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assertNotEquals(EventPayloadHash.sha256(EventPayloadCanonicalizer.canonicalize(negativeZero)),
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EventPayloadHash.sha256(EventPayloadCanonicalizer.canonicalizeLegacy(negativeZero)));
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}
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}
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