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/*
* SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
*
* SPDX-License-Identifier: EPL-2.0
*/
package tools.refinery.language.tests.formatting2;
import com.google.inject.Inject;
import com.google.inject.Provider;
import org.eclipse.xtext.formatting2.FormatterRequest;
import org.eclipse.xtext.formatting2.IFormatter2;
import org.eclipse.xtext.formatting2.regionaccess.ITextRegionAccess;
import org.eclipse.xtext.formatting2.regionaccess.ITextReplacement;
import org.eclipse.xtext.formatting2.regionaccess.TextRegionAccessBuilder;
import org.eclipse.xtext.resource.XtextResource;
import org.eclipse.xtext.testing.InjectWith;
import org.eclipse.xtext.testing.extensions.InjectionExtension;
import org.eclipse.xtext.testing.util.ParseHelper;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import tools.refinery.language.model.problem.Problem;
import tools.refinery.language.tests.ProblemInjectorProvider;
import java.util.List;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.equalTo;
@ExtendWith(InjectionExtension.class)
@InjectWith(ProblemInjectorProvider.class)
class ProblemFormatterTest {
@Inject
private ParseHelper<Problem> parseHelper;
@Inject
private Provider<FormatterRequest> formatterRequestProvider;
@Inject
private TextRegionAccessBuilder regionBuilder;
@Inject
private IFormatter2 formatter2;
@Test
void problemNameTest() {
testFormatter(" problem problem . ", "problem problem.\n");
}
@Test
void assertionTest() {
testFormatter(" equals ( a , b , * ) : true . ", "equals(a, b, *): true.\n");
}
@Test
void defaultAssertionTest() {
testFormatter(" default equals ( a , b , * ) : true . ", "default equals(a, b, *): true.\n");
}
@Test
void assertionShortTrueTest() {
testFormatter(" equals ( a , b , * ) . ", "equals(a, b, *).\n");
}
@Test
void defaultAssertionShortTrueTest() {
testFormatter(" default equals ( a , b , * ) . ", "default equals(a, b, *).\n");
}
@Test
void assertionShortFalseTest() {
testFormatter(" ! equals ( a , b , * ) . ", "!equals(a, b, *).\n");
}
@Test
void defaultAssertionShortFalseTest() {
testFormatter(" default ! equals ( a , b , * ) . ", "default !equals(a, b, *).\n");
}
@Test
void assertionShortUnknownTest() {
testFormatter(" ? equals ( a , b , * ) . ", "?equals(a, b, *).\n");
}
@Test
void defaultAssertionShortUnknownTest() {
testFormatter(" default ? equals ( a , b , * ) . ", "default ?equals(a, b, *).\n");
}
@Test
void multipleAssertionsTest() {
testFormatter(" exists ( a ) . ? equals ( a , a ).", """
exists(a).
?equals(a, a).
""");
}
@Test
void multipleAssertionsNamedProblemTest() {
testFormatter(" problem foo . exists ( a ) . ? equals ( a , a ).", """
problem foo.
exists(a).
?equals(a, a).
""");
}
@Test
void classWithoutBodyTest() {
testFormatter(" class Foo . ", "class Foo.\n");
}
@Test
void abstractClassWithoutBodyTest() {
testFormatter(" abstract class Foo . ", "abstract class Foo.\n");
}
@Test
void classExtendsWithoutBodyTest() {
testFormatter(" class Foo. class Bar . class Quux extends Foo , Bar . ", """
class Foo.
class Bar.
class Quux extends Foo, Bar.
""");
}
@Test
void classWithEmptyBodyTest() {
testFormatter(" class Foo { } ", """
class Foo {
}
""");
}
@Test
void classExtendsWithBodyTest() {
testFormatter(" class Foo. class Bar . class Quux extends Foo , Bar { } ", """
class Foo.
class Bar.
class Quux extends Foo, Bar {
}
""");
}
@Test
void predicateWithoutBodyTest() {
testFormatter(" pred foo ( node a , b ) . ", "pred foo(node a, b).\n");
}
@Test
void predicateWithBodyTest() {
testFormatter(
" pred foo ( node a , b ) <-> equal (a , _c ) , ! equal ( a , b ) ; equal+( a , b ) . ",
"pred foo(node a, b) <-> equal(a, _c), !equal(a, b); equal+(a, b).\n");
}
@Test
void predicatesWithoutBodyTest() {
testFormatter(" pred foo ( node a , b ) . pred bar ( node c ) . ", """
pred foo(node a, b).
pred bar(node c).
""");
}
@Test
void predicateCommentsTest() {
testFormatter("""
% Some foo
pred foo ( node a , b ) .
% Some bar
pred bar ( node c ) .
""", """
% Some foo
pred foo(node a, b).
% Some bar
pred bar(node c).
""");
}
@Test
void atomDeclarationTest() {
testFormatter(" atom a , b . ", "atom a, b.\n");
}
@Test
void mixedDeclarationsTest() {
testFormatter("""
problem test.
pred foo(node a).
class Foo.
foo(n1, n2).
atom i1.
!foo(i1, n1).
pred bar(node a, node b).
pred quux().
default !bar(*, *).
""", """
problem test.
pred foo(node a).
class Foo.
foo(n1, n2).
atom i1.
!foo(i1, n1).
pred bar(node a, node b).
pred quux().
default !bar(*, *).
""");
}
private void testFormatter(String toFormat, String expected) {
Problem problem;
try {
problem = parseHelper.parse(toFormat);
} catch (Exception e) {
throw new RuntimeException("Failed to parse document", e);
}
var resource = (XtextResource) problem.eResource();
FormatterRequest request = formatterRequestProvider.get();
request.setAllowIdentityEdits(false);
request.setFormatUndefinedHiddenRegionsOnly(false);
ITextRegionAccess regionAccess = regionBuilder.forNodeModel(resource).create();
request.setTextRegionAccess(regionAccess);
List<ITextReplacement> replacements = formatter2.format(request);
var formattedString = regionAccess.getRewriter().renderToString(replacements);
assertThat(formattedString.replace("\r\n", "\n"), equalTo(expected.replace("\r\n", "\n")));
}
}
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