[serde-gson,serde-hjson,serde-jackson] Unify JSON reader tests

test-utils/serde-json/src/main/java/de/siphalor/tweed5/testutils/serde/json/JsonReaderTest.java

@@ -1,14 +1,146 @@
 package de.siphalor.tweed5.testutils.serde.json;
 
 import de.siphalor.tweed5.dataapi.api.TweedDataReader;
+import de.siphalor.tweed5.dataapi.api.TweedDataToken;
 import lombok.SneakyThrows;
+import org.assertj.core.data.Offset;
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.CsvSource;
+import org.junit.jupiter.params.provider.ValueSource;
 
 import static org.assertj.core.api.Assertions.assertThat;
 
 public interface JsonReaderTest {
+	default Offset<Double> getDoublePrecision() {
+		return Offset.offset(0.000000001D);
+	}
+
 	TweedDataReader createJsonReader(String text);
 
+	@ParameterizedTest
+	@CsvSource({
+			"127,127",
+			"-128,-128",
+	})
+	@SneakyThrows
+	default void jsonByte(String input, byte expected) {
+		try (var reader = createJsonReader(input)) {
+			var token = reader.readToken();
+			assertThat(token.canReadAsByte()).as("%s should be a valid byte", input).isTrue();
+			assertThat(token.readAsByte()).isEqualTo(expected);
+		}
+	}
+
+	@ParameterizedTest
+	@CsvSource({
+			"1.23e2,123",
+			"120e-1,12",
+	})
+	@SneakyThrows
+	default void jsonByteFloaty(String input, byte expected) {
+		try (var reader = createJsonReader(input)) {
+			var token = reader.readToken();
+			assertThat(token.canReadAsByte()).as("%s should be a valid byte", input).isTrue();
+			assertThat(token.readAsByte()).isEqualTo(expected);
+		}
+	}
+
+	@ParameterizedTest
+	@CsvSource({
+			"128",
+			"1.23",
+			"-129",
+			"1.23e3",
+			"123E-1",
+	})
+	@SneakyThrows
+	default void jsonByteIllegal(String input) {
+		try (var reader = createJsonReader(input)) {
+			var token = reader.readToken();
+			assertThat(token.canReadAsByte()).as("%s should not be a valid byte", input).isFalse();
+		}
+	}
+
+	@ParameterizedTest
+	@CsvSource(value = {
+			"123,123",
+			"-132893892,-132893892",
+	})
+	@SneakyThrows
+	default void jsonInt(String input, int expected) {
+		try (var reader = createJsonReader(input)) {
+			var token = reader.readToken();
+			assertThat(token.canReadAsInt()).as("%s should be a valid int", input).isTrue();
+			assertThat(token.readAsInt()).isEqualTo(expected);
+		}
+	}
+
+	@ParameterizedTest
+	@CsvSource(value = {
+			"123e4,1230000",
+			"9.87e3,9870",
+			"45670E-1,4567",
+			"-123.56E+5,-12356000",
+	})
+	@SneakyThrows
+	default void jsonIntFloaty(String input, int expected) {
+		try (var reader = createJsonReader(input)) {
+			var token = reader.readToken();
+			assertThat(token.canReadAsInt()).as("%s should be a valid int", input).isTrue();
+			assertThat(token.readAsInt()).isEqualTo(expected);
+		}
+	}
+
+	@ParameterizedTest
+	@CsvSource({
+			"123,123",
+			"12.34,12.34",
+			"123456789.123456789,123456789.123456789",
+			"1234.057e8,123405700000",
+			"987.654E-5,0.00987654",
+	})
+	@SneakyThrows
+	default void jsonDouble(String input, double expected) {
+		try (var reader = createJsonReader(input)) {
+			var token = reader.readToken();
+			assertThat(token.canReadAsDouble()).as("%s should be a valid double", input).isTrue();
+			assertThat(token.readAsDouble()).isEqualTo(expected, getDoublePrecision());
+		}
+	}
+
+	@ParameterizedTest
+	@CsvSource({
+			"123,123",
+			"98765,98765"
+	})
+	@SneakyThrows
+	default void jsonIntAsDouble(String input, double expected) {
+		try (var reader = createJsonReader(input)) {
+			var token = reader.readToken();
+			assertThat(token.canReadAsDouble()).as("%s should be a valid double", input).isTrue();
+			assertThat(token.readAsDouble()).isEqualTo(expected, getDoublePrecision());
+		}
+	}
+
+	@ParameterizedTest
+	@ValueSource(strings = {
+			"[]",
+			"[\n\n]",
+			"[     ]",
+			"[\n\t\t]",
+	})
+	@SneakyThrows
+	default void jsonEmptyArray(String input) {
+		try (var reader = createJsonReader(input)) {
+			TweedDataToken token;
+			token = reader.readToken();
+			assertThat(token.isListStart()).isTrue();
+			token = reader.readToken();
+			assertThat(token.isListEnd()).isTrue();
+		}
+	}
+
 	@Test
 	@SneakyThrows
 	default void complexJsonReadTest() {