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204
src/test/java/com/fasterxml/jackson/failing/LocationOfError1180Test.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,204 @@ | ||
| package com.fasterxml.jackson.failing; | ||
|
|
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| import java.nio.charset.StandardCharsets; | ||
| import java.util.Arrays; | ||
| import java.util.List; | ||
| import java.util.stream.Stream; | ||
|
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| import org.junit.jupiter.api.Assertions; | ||
| import org.junit.jupiter.params.ParameterizedTest; | ||
| import org.junit.jupiter.params.provider.Arguments; | ||
| import org.junit.jupiter.params.provider.MethodSource; | ||
|
|
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| import com.fasterxml.jackson.core.*; | ||
| import com.fasterxml.jackson.core.async.ByteArrayFeeder; | ||
| import com.fasterxml.jackson.core.exc.StreamReadException; | ||
|
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| import static com.fasterxml.jackson.core.BaseTest.a2q; | ||
|
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| import static org.junit.Assert.assertEquals; | ||
| import static org.junit.Assert.assertTrue; | ||
|
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| /** | ||
| * Tests that the {@link JsonLocation} attached to a thrown {@link StreamReadException} | ||
| * due to invalid JSON points to the correct character. | ||
| */ | ||
| public class LocationOfError1180Test | ||
| { | ||
| static final JsonFactory JSON_F = new JsonFactory(); | ||
|
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| /** Represents the different parser backends */ | ||
| public enum ParserVariant | ||
| { | ||
| BYTE_ARRAY( | ||
| (String input) -> JSON_F.createParser(input.getBytes(StandardCharsets.UTF_8)), | ||
| true, // supports byte offsets in reported location | ||
| false, // supports character offsets in reported location | ||
| true // supports column numbers in reported location | ||
| ), | ||
| CHAR_ARRAY( | ||
| (String input) -> JSON_F.createParser(input.toCharArray()), | ||
| false, | ||
| true, | ||
| true | ||
| ), | ||
| ASYNC( | ||
| (String input) -> { | ||
| JsonParser parser = JSON_F.createNonBlockingByteArrayParser(); | ||
| ByteArrayFeeder feeder = (ByteArrayFeeder) parser.getNonBlockingInputFeeder(); | ||
| assertTrue(feeder.needMoreInput()); | ||
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| byte[] inputBytes = input.getBytes(StandardCharsets.UTF_8); | ||
| feeder.feedInput(inputBytes, 0, inputBytes.length); | ||
| feeder.endOfInput(); | ||
|
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| return parser; | ||
| }, | ||
| true, | ||
| false, | ||
| true | ||
| ) | ||
| ; | ||
|
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| ParserVariant( | ||
| ParserGenerator parserGenerator, | ||
| boolean supportsByteOffset, | ||
| boolean supportsCharOffset, | ||
| boolean supportsColumnNr | ||
| ) | ||
| { | ||
| _parserGenerator = parserGenerator; | ||
|
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| this.supportsByteOffset = supportsByteOffset; | ||
| this.supportsCharOffset = supportsCharOffset; | ||
| this.supportsColumnNr = supportsColumnNr; | ||
| } | ||
|
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| public JsonParser createParser(String input) throws Exception | ||
| { | ||
| return _parserGenerator.createParser(input); | ||
| } | ||
|
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| private final ParserGenerator _parserGenerator; | ||
| public final boolean supportsByteOffset; | ||
| public final boolean supportsCharOffset; | ||
| public final boolean supportsColumnNr; | ||
| } | ||
|
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| /** Collection of differing invalid JSON input cases to test */ | ||
| private static final List<InvalidJson> INVALID_JSON_CASES = Arrays.asList( | ||
| new InvalidJson( | ||
| "Incorrect case for false literal", | ||
| "{\"isThisValidJson\": FALSE}", | ||
| 24, | ||
| 24, | ||
| 1, | ||
| 25 | ||
| ), | ||
| new InvalidJson( | ||
| "Incorrect case for true literal", | ||
| "{\"shouldYouAvoidWritingJsonLikeThis\": TRUE}", | ||
| 41, | ||
| 41, | ||
| 1, | ||
| 42 | ||
| ), | ||
| new InvalidJson( | ||
| "Incorrect case for null literal", | ||
| "{\"licensePlate\": NULL}", | ||
| 20, | ||
| 20, | ||
| 1, | ||
| 21 | ||
| ), | ||
| // NOTE: to be removed, eventually | ||
| new InvalidJson( | ||
| "Invalid JSON with raw unicode character", | ||
| // javac will parse the 3-byte unicode control sequence, it will be passed to the parser as a raw unicode character | ||
| a2q("{'validJson':'\u274c','right', 'here'}"), | ||
| 26, | ||
| 24, | ||
| 1, | ||
| 25 | ||
| ) | ||
| ); | ||
|
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| @ParameterizedTest | ||
| @MethodSource("_generateTestData") | ||
| public void testParserBackendWithInvalidJson(ParserVariant variant, InvalidJson invalidJson) | ||
| throws Exception | ||
| { | ||
| try (JsonParser parser = variant.createParser(invalidJson.input)) | ||
| { | ||
| StreamReadException e = Assertions.assertThrows( | ||
| StreamReadException.class, | ||
| () -> { | ||
| // Blindly advance the parser through the end of input | ||
| while (parser.nextToken() != null) {} | ||
| } | ||
| ); | ||
|
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| JsonLocation location = e.getLocation(); | ||
| assertEquals(invalidJson.lineNr, location.getLineNr()); | ||
| final String msg = e.getOriginalMessage(); | ||
|
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| if (variant.supportsByteOffset) | ||
| { | ||
| assertEquals("Incorrect byte offset (for '"+msg+"')", | ||
| invalidJson.byteOffset, location.getByteOffset()); | ||
| } | ||
| if (variant.supportsCharOffset) | ||
| { | ||
| assertEquals("Incorrect char offset (for '"+msg+"')", | ||
| invalidJson.charOffset, location.getCharOffset()); | ||
| } | ||
| if (variant.supportsColumnNr) | ||
| { | ||
| assertEquals("Incorrect column (for '"+msg+"')", | ||
| invalidJson.columnNr, location.getColumnNr()); | ||
| } | ||
| } | ||
| } | ||
|
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| private static Stream<Arguments> _generateTestData() | ||
| { | ||
| return Arrays.stream(ParserVariant.values()) | ||
| .flatMap(parserVariant -> INVALID_JSON_CASES.stream().map( | ||
| invalidJson -> Arguments.of(parserVariant, invalidJson) | ||
| )); | ||
| } | ||
|
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| @FunctionalInterface | ||
| public interface ParserGenerator | ||
| { | ||
| JsonParser createParser(String input) throws Exception; | ||
| } | ||
|
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| static class InvalidJson | ||
| { | ||
| InvalidJson(String name, String input, int byteOffset, int charOffset, | ||
| int lineNr, int columnNr) | ||
| { | ||
| _name = name; | ||
|
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| this.input = input; | ||
| this.byteOffset = byteOffset; | ||
| this.charOffset = charOffset; | ||
| this.lineNr = lineNr; | ||
| this.columnNr = columnNr; | ||
| } | ||
|
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| @Override | ||
| public String toString() | ||
| { | ||
| return _name; | ||
| } | ||
|
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| private final String _name; | ||
| public final String input; | ||
| public final int byteOffset; | ||
| public final int charOffset; | ||
| public final int lineNr; | ||
| public final int columnNr; | ||
| } | ||
| } |