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plantuml/test/nonreg/RenderViaPipeTest.java

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2023-12-11 17:34:23 +00:00
package nonreg;
import static java.nio.charset.StandardCharsets.UTF_8;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.util.Lists.newArrayList;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.PrintStream;
import java.util.Collections;
import java.util.List;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.CsvSource;
import net.sourceforge.plantuml.ErrorStatus;
import net.sourceforge.plantuml.Option;
import net.sourceforge.plantuml.Pipe;
/**
* Tests the Render
*/
class RenderViaPipeTest {
@ParameterizedTest(name = "[{index}] {1}")
@CsvSource(nullValues = "null", value = {
"'@startuml\n!$a={\"k\": \"exampleValue\"}\ntitle $a.k\na -> b\n@enduml\n' , exampleValue",
"'@startuml\n!$a=[1, 2, 3]\ntitle xx $a[2] yy\na -> a\n' , xx 3 yy",
"'@startuml\ntitle\n!foreach $i in [1, 2, 3]\nxx $i yy\n!endfor\nendtitle\na -> a\n' , xx 2 yy",
"'@startuml\ntitle\n!foreach $i in [\"a\", \"b\", \"c\"]\nxx $i yy\n!endfor\nendtitle\na -> a\n' , xx b yy",
})
void RenderTest(String input, String expected) throws Exception {
assertRenderExpectedOutput(input, expected);
}
// TODO: to Factorize on a specific test package...
private static final String[] COMMON_OPTIONS = {"-preproc"};
// OK with "-tutxt"
// private static final String[] COMMON_OPTIONS = {"-tutxt"};
private String[] optionArray(String... extraOptions) {
final List<String> list = newArrayList(COMMON_OPTIONS);
Collections.addAll(list, extraOptions);
return list.toArray(new String[0]);
}
private String renderViaPipe(String diagram, String... extraOptions) throws Exception {
final Option option = new Option(optionArray(extraOptions));
final ByteArrayInputStream bais = new ByteArrayInputStream(diagram.getBytes(UTF_8));
final ByteArrayOutputStream baos = new ByteArrayOutputStream();
final Pipe pipe = new Pipe(option, new PrintStream(baos), bais, option.getCharset());
pipe.managePipe(ErrorStatus.init());
final String rendered = new String(baos.toByteArray(), UTF_8);
// System.out.println(rendered);
return rendered;
}
public void assertRenderExpectedOutput(String input, String expected) throws Exception {
final String rendered = renderViaPipe(input);
assertThat(rendered).doesNotContain("syntax").contains(expected);
}
}