log4j-layout-template-json/src/test/java/org/apache/logging/log4j/layout/template/json/resolver/CaseConverterResolverTest.java

package org.apache.logging.log4j.layout.template.json.resolver;

import org.apache.logging.log4j.core.LogEvent;
import org.apache.logging.log4j.core.impl.Log4jLogEvent;
import org.apache.logging.log4j.layout.template.json.JsonTemplateLayout;
import org.apache.logging.log4j.util.SortedArrayStringMap;
import org.apache.logging.log4j.util.StringMap;
import org.apache.logging.log4j.util.Strings;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.CsvSource;

import static org.apache.logging.log4j.layout.template.json.TestHelpers.CONFIGURATION;
import static org.apache.logging.log4j.layout.template.json.TestHelpers.asMap;
import static org.apache.logging.log4j.layout.template.json.TestHelpers.readJson;
import static org.apache.logging.log4j.layout.template.json.TestHelpers.usingSerializedLogEventAccessor;
import static org.apache.logging.log4j.layout.template.json.TestHelpers.writeJson;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatThrownBy;

class CaseConverterResolverTest {

    @ParameterizedTest
    @CsvSource({
            // case     | locale    | input         | output
            "upper"     + ",nl"     + ",ioz"        + ",IOZ",
            "upper"     + ",nl"     + ",IOZ"        + ",IOZ",
            "lower"     + ",nl"     + ",ioz"        + ",ioz",
            "lower"     + ",nl"     + ",IOZ"        + ",ioz",
            "upper"     + ",tr"     + ",ıiğüşöç"    + ",IİĞÜŞÖÇ",
            "upper"     + ",tr"     + ",IİĞÜŞÖÇ"    + ",IİĞÜŞÖÇ",
            "lower"     + ",tr"     + ",ıiğüşöç"    + ",ıiğüşöç",
            "lower"     + ",tr"     + ",IİĞÜŞÖÇ"    + ",ıiğüşöç"
    })
    void test_upper(
            final String case_,
            final String locale,
            final String input,
            final String output) {

        // Create the event template.
        final String eventTemplate = writeJson(asMap(
                "output", asMap(
                        "$resolver", "caseConverter",
                        "case", case_,
                        "locale", locale,
                        "input", asMap(
                                "$resolver", "mdc",
                                "key", "input"))));

        // Create the layout.
        final JsonTemplateLayout layout = JsonTemplateLayout
                .newBuilder()
                .setConfiguration(CONFIGURATION)
                .setEventTemplate(eventTemplate)
                .build();

        // Create the log event.
        final StringMap contextData = new SortedArrayStringMap();
        contextData.putValue("input", input);
        final LogEvent logEvent = Log4jLogEvent
                .newBuilder()
                .setContextData(contextData)
                .build();

        // Check the serialized event.
        usingSerializedLogEventAccessor(layout, logEvent, accessor ->
                assertThat(accessor.getString("output")).isEqualTo(output));

    }

    @ParameterizedTest
    @CsvSource({
            // failure message              | locale    | input     | strategy      | replacement   | output
            ""                              + ",nl"     + ",1"      + ",pass"       + ",null"       + ",1",
            ""                              + ",nl"     + ",[2]"    + ",pass"       + ",null"       + ",[2]",
            "was expecting a string value"  + ",nl"     + ",1"      + ",fail"       + ",null"       + ",null",
            ""                              + ",nl"     + ",1"      + ",replace"    + ",null"       + ",null",
            ""                              + ",nl"     + ",1"      + ",replace"    + ",2"          + ",2",
            ""                              + ",nl"     + ",1"      + ",replace"    + ",\"s\""      + ",\"s\""
    })
    void test_errorHandlingStrategy(
            final String failureMessage,
            final String locale,
            final String inputJson,
            final String errorHandlingStrategy,
            final String replacementJson,
            final String outputJson) {

        // Parse arguments.
        final Object input = readJson(inputJson);
        final Object replacement = readJson(replacementJson);
        final Object output = readJson(outputJson);

        // Create the event template.
        final String eventTemplate = writeJson(asMap(
                "output", asMap(
                        "$resolver", "caseConverter",
                        "case", "lower",
                        "locale", locale,
                        "input", input,
                        "errorHandlingStrategy", errorHandlingStrategy,
                        "replacement", replacement)));

        // Create the layout.
        final JsonTemplateLayout layout = JsonTemplateLayout
                .newBuilder()
                .setConfiguration(CONFIGURATION)
                .setEventTemplate(eventTemplate)
                .build();

        // Create the log event.
        final LogEvent logEvent = Log4jLogEvent.newBuilder().build();

        // Check the serialized event.
        final boolean failureExpected = Strings.isNotBlank(failureMessage);
        if (failureExpected) {
            assertThatThrownBy(() -> layout.toSerializable(logEvent))
                    .hasMessageContaining(failureMessage);
        } else {
            usingSerializedLogEventAccessor(layout, logEvent, accessor ->
                    assertThat(accessor.getObject("output")).isEqualTo(output));
        }
    }

}