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ExpectedErrors.java
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83 lines (73 loc) · 2.28 KB
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package sqlancer.common.query;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.regex.Pattern;
/**
* This class represents the errors that executing a statement might result in. For example, an INSERT statement might
* result in an error "UNIQUE constraint violated" when it attempts to insert a duplicate value in a column declared as
* UNIQUE.
*/
public class ExpectedErrors {
private final Set<String> errors = new HashSet<>();
private final List<Pattern> regexes = new ArrayList<>();
public ExpectedErrors add(String error) {
if (error == null) {
throw new IllegalArgumentException();
}
errors.add(error);
return this;
}
public ExpectedErrors addRegex(Pattern errorPattern) {
if (errorPattern == null) {
throw new IllegalArgumentException();
}
regexes.add(errorPattern);
return this;
}
public ExpectedErrors addAll(Collection<String> list) {
errors.addAll(list);
return this;
}
public ExpectedErrors addAllRegexes(Collection<Pattern> list) {
if (list == null) {
throw new IllegalArgumentException();
}
regexes.addAll(list);
return this;
}
public static ExpectedErrors from(String... errors) {
ExpectedErrors expectedErrors = new ExpectedErrors();
for (String error : errors) {
expectedErrors.add(error);
}
return expectedErrors;
}
/**
* Checks whether the error message (e.g., returned by the DBMS under test) contains any of the added error
* messages.
*
* @param error
* the error message
*
* @return whether the error message contains any of the substrings specified as expected errors
*/
public boolean errorIsExpected(String error) {
if (error == null) {
throw new IllegalArgumentException();
}
for (String s : this.errors) {
if (error.contains(s)) {
return true;
}
}
for (Pattern p : this.regexes) {
if (p.matcher(error).find()) {
return true;
}
}
return false;
}
}