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package org.shedlang.compiler.config;
import org.junit.jupiter.api.Test;
import org.shedlang.compiler.config.json.Json5ObjectWithSource;
import org.shedlang.compiler.sources.SourceTexts;
import java.util.OptionalLong;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.zwobble.precisely.AssertThat.assertThat;
import static org.zwobble.precisely.Matchers.*;
public class GcConfigTests {
@Test
public void whenNameIsUnrecognisedThenErrorIsThrown() {
var source = """
{
name: "huh",
}
""";
var error = assertThrows(
IllegalArgumentException.class,
() -> parseGcConfig(source)
);
assertThat(error.getMessage(), equalTo("Unrecognised GC name: \"huh\""));
}
@Test
public void canParseConfigForBump() {
var source = """
{
"name": "bump",
}
""";
var config = parseGcConfig(source);
assertThat(config, instanceOf(GcBumpConfig.class));
}
@Test
public void canParseMinimalConfigForMarkAndSweep() {
var source = """
{
name: "mark-and-sweep",
}
""";
var config = parseGcConfig(source);
assertThat(config, instanceOf(GcMarkAndSweepConfig.class));
}
@Test
public void additionalFieldsCanBeUsedBySpecificGcConfig() {
var source = """
{
name: "mark-and-sweep",
collectInterval: 10000,
}
""";
var config = parseGcConfig(source);
assertThat(config, instanceOf(
GcMarkAndSweepConfig.class,
has("collectInterval", x -> x.collectInterval(), equalTo(OptionalLong.of(10000L)))
));
}
private GcConfig parseGcConfig(String text) {
var sourceText = SourceTexts.string(text);
return GcConfig.fromJson5(Json5ObjectWithSource.parse(sourceText));
}
}
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