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/*
* Copyright 2022 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.openrewrite.test;
import lombok.RequiredArgsConstructor;
import lombok.experimental.Delegate;
import org.assertj.core.api.SoftAssertions;
import org.jspecify.annotations.Nullable;
import org.openrewrite.*;
import org.openrewrite.config.CompositeRecipe;
import org.openrewrite.config.Environment;
import org.openrewrite.config.OptionDescriptor;
import org.openrewrite.internal.InMemoryDiffEntry;
import org.openrewrite.internal.RecipeIntrospectionUtils;
import org.openrewrite.internal.StringUtils;
import org.openrewrite.internal.WhitespaceValidationService;
import org.openrewrite.marker.Marker;
import org.openrewrite.marker.Markers;
import org.openrewrite.quark.Quark;
import org.openrewrite.remote.Remote;
import org.openrewrite.tree.ParseError;
import java.io.ByteArrayInputStream;
import java.nio.file.Path;
import java.util.*;
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.function.Consumer;
import java.util.function.Function;
import java.util.function.Supplier;
import java.util.function.UnaryOperator;
import java.util.stream.Collectors;
import java.util.stream.StreamSupport;
import static org.assertj.core.api.Assertions.*;
import static org.openrewrite.internal.StringUtils.trimIndentPreserveCRLF;
@SuppressWarnings("unused")
public interface RewriteTest extends SourceSpecs {
static AdHocRecipe toRecipe(Supplier> visitor) {
return new AdHocRecipe(null, null, null, visitor, null, null);
}
static AdHocRecipe toRecipe() {
return new AdHocRecipe(null, null, null,
TreeVisitor::noop, null, null);
}
static AdHocRecipe toRecipe(Function> visitor) {
AdHocRecipe r = toRecipe();
return r.withGetVisitor(() -> visitor.apply(r));
}
static Recipe fromRuntimeClasspath(String recipe) {
return Environment.builder()
.scanRuntimeClasspath()
.build()
.activateRecipes(recipe);
}
/**
* Check that all recipes loadable from the runtime classpath containing the provided package name
* are configurable and run with an empty source file set.
*
* @param packageName The package name to scan for recipes in.
*/
default void assertRecipesConfigure(String packageName) {
// soft assertions allow the entire stack trace to be displayed for each
// recipe that fails to configure
SoftAssertions softly = new SoftAssertions();
for (Recipe recipe : Environment.builder()
.scanRuntimeClasspath(packageName)
.build()
.listRecipes()) {
// scanRuntimeClasspath picks up all recipes in META-INF/rewrite regardless of whether their
// names start with the package we intend to filter on here
if (recipe.getName().startsWith(packageName)) {
softly.assertThatCode(() -> {
try {
rewriteRun(
spec -> spec.recipe(recipe),
new SourceSpecs[0]
);
} catch (Throwable t) {
fail("Recipe " + recipe.getName() + " failed to configure", t);
}
}).doesNotThrowAnyException();
}
}
softly.assertAll();
}
/**
* Check that all recipes loadable from the runtime classpath containing the test's package
* are configurable and run with an empty source file set.
*/
default void assertRecipesConfigure() {
assertRecipesConfigure(getClass().getPackage().getName());
}
/**
* @return always null, a method that better documents in code that a source file does not exist either
* before or after a recipe run.
*/
default @Nullable String doesNotExist() {
return null;
}
default void defaults(RecipeSpec spec) {
spec.recipe(Recipe.noop());
}
default void rewriteRun(SourceSpecs... sourceSpecs) {
rewriteRun(spec -> {
}, sourceSpecs);
}
default void rewriteRun(Consumer spec, SourceSpecs... sourceSpecs) {
rewriteRun(spec, Arrays.stream(sourceSpecs)
.flatMap(specGroup -> StreamSupport.stream(specGroup.spliterator(), false))
.toArray(SourceSpec[]::new)
);
}
default void rewriteRun(Consumer spec, SourceSpec... sourceSpecs) {
RecipeSpec testClassSpec = RecipeSpec.defaults();
defaults(testClassSpec);
RecipeSpec testMethodSpec = RecipeSpec.defaults();
spec.accept(testMethodSpec);
PrintOutputCapture.MarkerPrinter markerPrinter;
if (testMethodSpec.getMarkerPrinter() != null) {
markerPrinter = testMethodSpec.getMarkerPrinter();
} else if (testClassSpec.getMarkerPrinter() != null) {
markerPrinter = testClassSpec.getMarkerPrinter();
} else {
markerPrinter = PrintOutputCapture.MarkerPrinter.DEFAULT;
}
PrintOutputCapture out = new PrintOutputCapture<>(0, markerPrinter);
Recipe recipe = testMethodSpec.recipe == null ? testClassSpec.recipe : testMethodSpec.recipe;
assertThat(recipe)
.as("A recipe must be specified")
.isNotNull();
if (!(recipe instanceof AdHocRecipe) && !(recipe instanceof AdHocScanningRecipe) &&
!(recipe instanceof CompositeRecipe) && !(recipe.equals(Recipe.noop())) &&
testClassSpec.serializationValidation &&
testMethodSpec.serializationValidation) {
RecipeSerializer recipeSerializer = new RecipeSerializer();
assertThat(recipeSerializer.read(recipeSerializer.write(recipe)))
.as("Recipe must be serializable/deserializable")
.isEqualTo(recipe);
assertThatCode(() -> {
Recipe r = RecipeIntrospectionUtils.constructRecipe(recipe.getClass());
// getRecipeList should not fail with default parameters from RecipeIntrospectionUtils.
r.getRecipeList();
// We add recipes to HashSet in some places, we need to validate that hashCode and equals does not fail.
//noinspection ResultOfMethodCallIgnored
r.hashCode();
//noinspection EqualsWithItself,ResultOfMethodCallIgnored
r.equals(r);
})
.as("Recipe must be able to instantiate via RecipeIntrospectionUtils")
.doesNotThrowAnyException();
validateRecipeNameAndDescription(recipe);
validateRecipeOptions(recipe);
}
if (testMethodSpec.getRecipePrinter() != null) {
testMethodSpec.getRecipePrinter().printTree(recipe);
} else if (testClassSpec.getRecipePrinter() != null) {
testClassSpec.getRecipePrinter().printTree(recipe);
}
int cycles = testMethodSpec.cycles == null ? testClassSpec.getCycles() : testMethodSpec.getCycles();
// There may not be any tests that have "after" assertions, but that change file attributes or file names.
// If so, the test can declare an expected set of cycles that make changes.
int expectedCyclesThatMakeChanges = testMethodSpec.expectedCyclesThatMakeChanges == null ?
(testClassSpec.expectedCyclesThatMakeChanges == null ? 0 : testClassSpec.expectedCyclesThatMakeChanges) :
testMethodSpec.expectedCyclesThatMakeChanges;
// If there are any tests that have assertions (an "after"), then set the expected cycles.
for (SourceSpec s : sourceSpecs) {
if (s.after != null) {
expectedCyclesThatMakeChanges = testMethodSpec.expectedCyclesThatMakeChanges == null ?
testClassSpec.getExpectedCyclesThatMakeChanges(cycles) :
testMethodSpec.getExpectedCyclesThatMakeChanges(cycles);
break;
}
}
ExecutionContext ctx;
if (testMethodSpec.getExecutionContext() != null) {
ctx = testMethodSpec.getExecutionContext();
} else if (testClassSpec.getExecutionContext() != null) {
ctx = testClassSpec.getExecutionContext();
} else {
ctx = defaultExecutionContext(sourceSpecs);
}
for (SourceSpec s : sourceSpecs) {
s.customizeExecutionContext.accept(ctx);
}
List> validations = new ArrayList<>();
recipe.validateAll(ctx, validations);
assertThat(validations)
.as("Recipe validation must have no failures")
.noneMatch(Validated::isInvalid);
Map>> sourceSpecsByParser = new HashMap<>();
List methodSpecParsers = testMethodSpec.parsers;
// Clone class-level parsers to ensure that no state leaks between tests
List testClassSpecParsers = testClassSpec.parsers.stream()
.map(Parser.Builder::clone)
.collect(Collectors.toList());
for (SourceSpec sourceSpec : sourceSpecs) {
// ----- method specific parser -------------------------
if (RewriteTestUtils.groupSourceSpecsByParser(methodSpecParsers, sourceSpecsByParser, sourceSpec)) {
continue;
}
// ----- test default parser -------------------------
if (RewriteTestUtils.groupSourceSpecsByParser(testClassSpecParsers, sourceSpecsByParser, sourceSpec)) {
continue;
}
// ----- default parsers for each SourceFile type -------------------------
sourceSpecsByParser.computeIfAbsent(sourceSpec.getParser().clone(), p -> new ArrayList<>()).add(sourceSpec);
}
Map> specBySourceFile = new LinkedHashMap<>(sourceSpecs.length);
for (Map.Entry>> sourceSpecsForParser : sourceSpecsByParser.entrySet()) {
Map, Parser.Input> inputs = new LinkedHashMap<>(sourceSpecsForParser.getValue().size());
Parser parser = sourceSpecsForParser.getKey().build();
for (SourceSpec sourceSpec : sourceSpecsForParser.getValue()) {
if (sourceSpec.before == null) {
continue;
}
String beforeTrimmed = sourceSpec.noTrim ?
sourceSpec.before :
trimIndentPreserveCRLF(sourceSpec.before);
Path sourcePath;
if (sourceSpec.sourcePath != null) {
sourcePath = sourceSpec.dir.resolve(sourceSpec.sourcePath);
} else {
sourcePath = parser.sourcePathFromSourceText(sourceSpec.dir, beforeTrimmed);
}
for (UncheckedConsumer> consumer : testMethodSpec.allSources) {
consumer.accept(sourceSpec);
}
for (UncheckedConsumer> consumer : testClassSpec.allSources) {
consumer.accept(sourceSpec);
}
inputs.put(sourceSpec, Parser.Input.fromString(sourcePath, beforeTrimmed, parser.getCharset(ctx)));
}
Path relativeTo = testMethodSpec.relativeTo == null ? testClassSpec.relativeTo : testMethodSpec.relativeTo;
Iterator> sourceSpecIter = inputs.keySet().iterator();
boolean requirePrintEqualsInput = ctx.getMessage(ExecutionContext.REQUIRE_PRINT_EQUALS_INPUT, true);
if (requirePrintEqualsInput) {
// this gets checked by the test framework itself a few statements further down
ctx.putMessage(ExecutionContext.REQUIRE_PRINT_EQUALS_INPUT, false);
}
List sourceFiles = parser.parseInputs(inputs.values(), relativeTo, ctx)
.collect(Collectors.toList());
assertThat(sourceFiles.size())
.as("Every input should be parsed into a SourceFile.")
.isEqualTo(inputs.size());
if (requirePrintEqualsInput) {
ctx.putMessage(ExecutionContext.REQUIRE_PRINT_EQUALS_INPUT, true);
}
for (int i = 0; i < sourceFiles.size(); i++) {
SourceFile sourceFile = sourceFiles.get(i);
Markers markers = sourceFile.getMarkers();
SourceSpec nextSpec = sourceSpecIter.next();
for (Marker marker : nextSpec.getMarkers()) {
markers = markers.setByType(marker);
}
sourceFile = sourceFile.withMarkers(markers);
// Validate before source
nextSpec.validateSource.accept(sourceFile, TypeValidation.before(testMethodSpec, testClassSpec));
// Validate that printing the LST yields the same source text
// Validate that the LST whitespace do not contain any non-whitespace characters
int j = 0;
for (Parser.Input input : inputs.values()) {
if (j++ == i && !(sourceFile instanceof Quark)) {
assertContentEquals(
sourceFile,
StringUtils.readFully(input.getSource(ctx), parser.getCharset(ctx)),
sourceFile.printAll(out.clone()),
"When parsing and printing the source code back to text without modifications, " +
"the printed source didn't match the original source code. This means there is a bug in the " +
"parser implementation itself. Please open an issue to report this, providing a sample of the " +
"code that generated this error for"
);
try {
WhitespaceValidationService service = sourceFile.service(WhitespaceValidationService.class);
SourceFile whitespaceValidated = (SourceFile) service.getVisitor().visit(sourceFile, ctx);
if(whitespaceValidated != null && whitespaceValidated != sourceFile) {
fail("Source file was parsed into an LST that contains non-whitespace characters in its whitespace. " +
"This is indicative of a bug in the parser. \n" + whitespaceValidated.printAll());
}
} catch (UnsupportedOperationException e) {
// Language/parser does not provide whitespace validation and that's OK for now
}
}
}
//noinspection unchecked
SourceFile mapped = ((UnaryOperator) nextSpec.beforeRecipe).apply(sourceFile);
specBySourceFile.put(mapped, nextSpec);
}
}
List beforeSourceFiles = new ArrayList<>(specBySourceFile.keySet());
for (Consumer> beforeRecipe : testClassSpec.beforeRecipes) {
beforeRecipe.accept(beforeSourceFiles);
}
for (Consumer> beforeRecipe : testMethodSpec.beforeRecipes) {
beforeRecipe.accept(beforeSourceFiles);
}
for (SourceFile beforeSourceFile : beforeSourceFiles) {
specBySourceFile.put(beforeSourceFile, specBySourceFile.remove(beforeSourceFile));
}
List runnableSourceFiles = new ArrayList<>(beforeSourceFiles.size());
for (Map.Entry> sourceFileSpec : specBySourceFile.entrySet()) {
if (!sourceFileSpec.getValue().isSkip()) {
runnableSourceFiles.add(sourceFileSpec.getKey());
}
}
ExecutionContext recipeCtx = ctx;
if (testMethodSpec.getRecipeExecutionContext() != null) {
recipeCtx = testMethodSpec.getRecipeExecutionContext();
} else if (testClassSpec.getRecipeExecutionContext() != null) {
recipeCtx = testClassSpec.getRecipeExecutionContext();
}
LargeSourceSet lss;
if (testMethodSpec.getSourceSet() != null) {
lss = testMethodSpec.getSourceSet().apply(runnableSourceFiles);
} else if (testClassSpec.getSourceSet() != null) {
lss = testClassSpec.getSourceSet().apply(runnableSourceFiles);
} else {
lss = new LargeSourceSetCheckingExpectedCycles(expectedCyclesThatMakeChanges, runnableSourceFiles);
}
RecipeRun recipeRun = recipe.run(
lss,
recipeCtx,
cycles,
expectedCyclesThatMakeChanges + 1
);
for (Consumer afterRecipe : testClassSpec.afterRecipes) {
afterRecipe.accept(recipeRun);
}
for (Consumer afterRecipe : testMethodSpec.afterRecipes) {
afterRecipe.accept(recipeRun);
}
Collection> expectedNewSources = Collections.newSetFromMap(new IdentityHashMap<>());
Collection expectedNewResults = Collections.newSetFromMap(new IdentityHashMap<>());
for (SourceSpec sourceSpec : sourceSpecs) {
if (sourceSpec.before == null) {
expectedNewSources.add(sourceSpec);
}
}
// to prevent a CME inside the next loop
expectedNewSources = new CopyOnWriteArrayList<>(expectedNewSources);
List allResults = recipeRun.getChangeset().getAllResults();
nextSourceSpec:
for (SourceSpec sourceSpec : expectedNewSources) {
assertThat(sourceSpec.after).as("Either before or after must be specified in a SourceSpec").isNotNull();
// If the source spec defines a source path, look for a result where there is a new file at that path.
if (sourceSpec.getSourcePath() != null) {
// If sourceSpec defines a source path, enforce there is a result that has the same source path and
// the contents match the expected value.
for (Result result : allResults) {
if (result.getAfter() != null && sourceSpec.getSourcePath().equals(result.getAfter().getSourcePath())) {
expectedNewSources.remove(sourceSpec);
expectedNewResults.add(result);
assertThat(result.getBefore())
.as("Expected a new file for the source path but there was an existing file already present: " +
sourceSpec.getSourcePath())
.isNull();
String actual = result.getAfter().printAll(out.clone());
actual = sourceSpec.noTrim ? actual : actual.trim();
String expected = sourceSpec.noTrim ?
sourceSpec.after.apply(actual) :
trimIndentPreserveCRLF(sourceSpec.after.apply(actual));
assertThat(actual).as("Unexpected result in \"" + result.getAfter().getSourcePath() + "\"").isEqualTo(expected);
continue nextSourceSpec;
}
}
String paths = allResults.stream()
.map(it -> {
String beforePath = (it.getBefore() == null) ? "null" : it.getBefore().getSourcePath().toString();
String afterPath = (it.getAfter() == null) ? "null" : it.getAfter().getSourcePath().toString();
return " " + beforePath + " -> " + afterPath;
})
.collect(Collectors.joining("\n"));
fail("Expected a new source file with the source path: " + sourceSpec.getSourcePath()
+"\nAll source file paths, before and after recipe run:\n" + paths);
}
// If the source spec has not defined a source path, look for a result with the exact contents. This logic
// first looks for non-remote results.
for (Result result : allResults) {
if (result.getAfter() != null && !(result.getAfter() instanceof Remote)) {
assertThat(sourceSpec.after).as("Either before or after must be specified in a SourceSpec").isNotNull();
String actual = result.getAfter().printAll(out.clone()).trim();
String expected = trimIndentPreserveCRLF(sourceSpec.after.apply(actual));
if (actual.equals(expected)) {
expectedNewSources.remove(sourceSpec);
expectedNewResults.add(result);
//noinspection unchecked
((Consumer) sourceSpec.afterRecipe).accept(result.getAfter());
if (sourceSpec.sourcePath != null) {
assertThat(result.getAfter().getSourcePath())
.isEqualTo(sourceSpec.dir.resolve(sourceSpec.sourcePath));
}
break;
}
}
}
// we tried to avoid it, and now we'll try to match against remotes...
for (Result result : allResults) {
if (result.getAfter() instanceof Remote) {
assertThat(sourceSpec.after).as("Either before or after must be specified in a SourceSpec").isNotNull();
String actual = result.getAfter().printAll(out.clone());
String expected = trimIndentPreserveCRLF(sourceSpec.after.apply(actual));
if (actual.equals(expected)) {
expectedNewSources.remove(sourceSpec);
//noinspection unchecked
((Consumer) sourceSpec.afterRecipe).accept(result.getAfter());
if (sourceSpec.sourcePath != null) {
assertThat(result.getAfter().getSourcePath())
.isEqualTo(sourceSpec.dir.resolve(sourceSpec.sourcePath));
}
break;
}
}
}
}
nextSourceFile:
for (Map.Entry> specForSourceFile : specBySourceFile.entrySet()) {
SourceSpec sourceSpec = specForSourceFile.getValue();
SourceFile source = specForSourceFile.getKey();
if (source instanceof ParseError) {
ParseError parseError = (ParseError) source;
if (parseError.getErroneous() != null) {
assertContentEquals(
parseError,
parseError.getText(),
parseError.getErroneous().printAll(),
"Bug in source parser or printer resulted in the following difference for"
);
}
}
for (Result result : allResults) {
if ((result.getBefore() == null && source == null) ||
(result.getBefore() != null && result.getBefore().getId().equals(source.getId()))) {
if (result.getAfter() != null) {
String before = result.getBefore() == null ? null : result.getBefore().printAll(out.clone());
String actualAfter = result.getAfter().printAll(out.clone());
String expectedAfter = sourceSpec.after == null ? null :
sourceSpec.after.apply(actualAfter);
if (expectedAfter != null) {
String expected = sourceSpec.noTrim ?
expectedAfter :
trimIndentPreserveCRLF(expectedAfter);
assertContentEquals(result.getAfter(), expected, actualAfter, "Unexpected result in");
sourceSpec.validateSource.accept(result.getAfter(), TypeValidation.after(testMethodSpec, testClassSpec));
} else {
boolean isRemote = result.getAfter() instanceof Remote;
if (!isRemote && Objects.equals(result.getBefore().getSourcePath(), result.getAfter().getSourcePath()) &&
Objects.equals(before, actualAfter)) {
fail("An empty diff was generated. The recipe incorrectly changed a reference without changing its contents.");
}
assert result.getBefore() != null;
if (isRemote) {
// TODO: Verify that the remote URI is correct
} else {
assertThat(actualAfter)
.as("The recipe must not make changes to \"" + result.getBefore().getSourcePath() + "\"")
.isEqualTo(before);
}
}
} else {
if (sourceSpec.after == null) {
// If the source spec was not expecting a change (spec.after == null) but the file has been
// deleted, assert failure.
assert result.getBefore() != null;
fail("The recipe deleted a source file \"" + result.getBefore().getSourcePath() + "\" that was not expected to change");
} else {
String expected = sourceSpec.after.apply(null);
if (expected != null) {
// The spec expected the file to be changed, not deleted.
assert result.getBefore() != null;
assertThat((String) null)
.as("The recipe deleted a source file \"" + result.getBefore().getSourcePath() + "\" but should have changed it instead")
.isEqualTo(expected);
}
}
}
try {
//noinspection unchecked
((Consumer) sourceSpec.afterRecipe).accept(result.getAfter());
} catch (ClassCastException ignored) {
// the source file instance type changed, e.g. in FindAndReplace.
}
continue nextSourceFile;
}
}
// if we get here, there was no result.
if (sourceSpec.after != null) {
String actual = sourceSpec.noTrim ?
source.printAll(out.clone()) :
trimIndentPreserveCRLF(source.printAll(out.clone()));
String before = sourceSpec.noTrim ?
sourceSpec.before :
trimIndentPreserveCRLF(sourceSpec.before);
String expected = sourceSpec.noTrim ?
sourceSpec.after.apply(null) :
trimIndentPreserveCRLF(sourceSpec.after.apply(null));
assertThat(expected)
.as("To assert that a Recipe makes no change, supply only \"before\" source.")
.isNotEqualTo(before);
assertThat(actual)
.as("The recipe should have made the following change to \"" + source.getSourcePath() + "\"")
.isEqualTo(expected);
}
//noinspection unchecked
((Consumer) sourceSpec.afterRecipe).accept(source);
}
SoftAssertions newFilesGenerated = new SoftAssertions();
for (SourceSpec expectedNewSource : expectedNewSources) {
newFilesGenerated.assertThat(expectedNewSource.after == null ? null : expectedNewSource.after.apply(null))
.as("No new source file was generated that matched.")
.isEmpty();
}
newFilesGenerated.assertAll();
Map resultToUnexpected = allResults.stream()
.collect(Collectors.toMap(result -> result, result -> result.getBefore() == null
&& !(result.getAfter() instanceof Remote)
&& !expectedNewResults.contains(result)
&& testMethodSpec.afterRecipes.isEmpty()));
if (resultToUnexpected.values().stream().anyMatch(unexpected -> unexpected)) {
String paths = resultToUnexpected.entrySet().stream()
.map(it -> {
Result result = it.getKey();
assert result.getAfter() != null;
String beforePath = (result.getBefore() == null) ? "null" : result.getAfter().getSourcePath().toString();
String afterPath = (result.getAfter() == null) ? "null" : result.getAfter().getSourcePath().toString();
String status = it.getValue() ? "❌️" : "✔";
return " " + beforePath + " | " + afterPath + " | " + status;
})
.collect(Collectors.joining("\n"));
fail("The recipe generated source files the test did not expect.\n" +
"Source file paths before recipe, after recipe, and whether the test expected that result:\n" +
" before | after | expected\n" + paths);
}
}
static void assertContentEquals(SourceFile sourceFile, String expected, String actual, String errorMessagePrefix) {
try {
try (InMemoryDiffEntry diffEntry = new InMemoryDiffEntry(
sourceFile.getSourcePath(),
sourceFile.getSourcePath(),
null,
expected,
actual,
Collections.emptySet()
)) {
assertThat(actual)
.as(errorMessagePrefix + " \"%s\":\n%s", sourceFile.getSourcePath(), diffEntry.getDiff())
.isEqualTo(expected);
}
} catch (LinkageError e) {
// in case JGit fails to load properly
assertThat(actual)
.as(errorMessagePrefix + " \"%s\"", sourceFile.getSourcePath())
.isEqualTo(expected);
}
}
default void rewriteRun(SourceSpec... sources) {
rewriteRun(spec -> {
}, sources);
}
default ExecutionContext defaultExecutionContext(SourceSpec[] sourceSpecs) {
return new InMemoryExecutionContext(t -> fail("Failed to parse sources or run recipe", t));
}
@Override
default Iterator> iterator() {
return new Iterator>() {
@Override
public boolean hasNext() {
return false;
}
@Override
public SourceSpec next() {
throw new UnsupportedOperationException("RewriteTest is not intended to be iterated.");
}
};
}
default void validateRecipeNameAndDescription(Recipe recipe) {
if (recipe instanceof CompositeRecipe) {
for (Recipe childRecipe : recipe.getRecipeList()) {
validateRecipeNameAndDescription(childRecipe);
}
} else {
assertThat(recipe.getDisplayName()).as("%s display name should not end with a period.", recipe.getName()).doesNotEndWith(".");
String description = recipe.getDescription();
assertThat(description).as("%s description should not be null or empty", recipe.getName()).isNotEmpty();
if (description.endsWith(")")) {
String lastLine = description.substring(description.lastIndexOf('\n') + 1).trim();
assertThat(lastLine).as("%s description not ending with a period should be because the description ends with a markdown list of pure links", recipe.getName()).startsWith("- [");
} else {
assertThat(description).as("%s description should end with a period.", recipe.getName()).endsWith(".");
}
}
}
default void validateRecipeOptions(Recipe recipe) {
for (OptionDescriptor option : recipe.getDescriptor().getOptions()) {
assertThat(option.getName())
.as("%s option `name` conflicts with the recipe's name. Please use a different field name for this option.", recipe.getName())
.isNotEqualTo("name");
}
}
}
class RewriteTestUtils {
static boolean groupSourceSpecsByParser(List parserBuilders, Map>> sourceSpecsByParser, SourceSpec sourceSpec) {
for (Map.Entry>> entry : sourceSpecsByParser.entrySet()) {
if (entry.getKey().getSourceFileType().equals(sourceSpec.sourceFileType) && sourceSpec.getParser().getClass().isAssignableFrom(entry.getKey().getClass())) {
entry.getValue().add(sourceSpec);
return true;
}
}
for (Parser.Builder parser : parserBuilders) {
if (parser.getSourceFileType().equals(sourceSpec.sourceFileType)) {
sourceSpecsByParser.computeIfAbsent(parser, p -> new ArrayList<>()).add(sourceSpec);
return true;
}
}
return false;
}
}
@RequiredArgsConstructor
class DelegateSourceFileForDiff implements SourceFile {
@Delegate(excludes = PrintAll.class)
private final SourceFile delegate;
private final String expected;
@Override
public String printAll(PrintOutputCapture
out) {
out.append(expected);
return out.getOut();
}
@SuppressWarnings("unused") // Lombok delegate exclude
interface PrintAll {
String printAll(PrintOutputCapture
out);
}
}