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/*
* Moxy - Lean-and-mean mocking framework for Java with a fluent API.
*
* Copyright 2018 Ross Bamford
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package com.roscopeco.moxy.impl.asm;
import java.util.List;
import java.util.stream.Collectors;
import org.opentest4j.AssertionFailedError;
class VerifierHelpers {
static boolean invocationsMatch(final ASMMoxyMatcherEngine engine,
final Invocation actual,
final Invocation stored) {
return
stored.getReceiver() == actual.getReceiver() && // identity is intentional!
stored.getMethodName().equals(actual.getMethodName()) &&
stored.getMethodDesc().equals(actual.getMethodDesc()) &&
engine.argsMatch(stored.getArgs(), actual.getArgs());
}
/*
* Return number of times invocationToMatch matches in invocations.
*/
static int getCallCount(final ASMMoxyMatcherEngine engine,
final Invocation invocationToMatch,
final List invocations) {
if (engine == null) {
throw new IllegalArgumentException("Cannot match arguments with null engine");
} else if (invocationToMatch == null) {
throw new IllegalArgumentException("Cannot match arguments with null invocation");
} else if (invocations == null) {
throw new IllegalArgumentException("Cannot match arguments with null invocation list");
} else {
return invocations
.stream()
.filter(e -> invocationsMatch(engine, invocationToMatch, e))
.collect(Collectors.toList())
.size();
}
}
private VerifierHelpers() {
throw new UnsupportedOperationException(
"com.roscopeco.moxy.impl.asm.VerifierHelpers is not designed for instantiation");
}
/*
* Return a human-readble list of invocations.
*/
static String inspectInvocations(final List invocations) {
final StringBuilder sb = new StringBuilder();
if (invocations.size() > 1) {
sb.append(StringConsts.LSQPAREN);
}
sb.append(invocations.stream()
.map(Invocation::toString)
.collect(Collectors.joining(StringConsts.COMMA_SPACE.value())));
if (invocations.size() > 1) {
sb.append(StringConsts.RSQPAREN);
}
return sb.toString();
}
static String makeExpectedCountMismatchMessage(final Invocation invocation,
final int expectedTimes,
final int actualTimes,
final StringConsts comparison) {
return new StringBuilder()
.append(StringConsts.EXPECTED_MOCK)
.append(invocation.toString())
.append(StringConsts.TO_BE_CALLED)
.append(comparison)
.append(StringConsts.SPACE)
.append(TypeStringUtils.readableTimes(expectedTimes))
.append(StringConsts.BUT_IT_WAS_CALLED)
.append(TypeStringUtils.readableTimes(actualTimes))
.toString();
}
/*
* Tests for an ordered match of the monitored invocations in the list
* of actual invocations.
*
* if exclusiveMode is true, the invocations must immediately follow
* one-another in order to match.
*/
static void testOrderedMatch(final ASMMoxyMatcherEngine engine,
final List actualInvocations,
final List monitoredInvocations,
final boolean exclusiveMode,
final boolean allCalledChecked) {
int currentMatchPtr = 0;
boolean inMatch = false;
for (final Invocation actual : actualInvocations) {
final Invocation monitored = monitoredInvocations.get(currentMatchPtr);
if (!inMatch) {
// could this be the start of our match?
if (invocationsMatch(engine, actual, monitored)) {
inMatch = true;
currentMatchPtr++;
}
} else {
// currently in a match
if (exclusiveMode) {
// exclusive mode, so reset matchPtr if next invocation isn't
// also a match (i.e. our wanted invocations don't exactly follow
// one-another).
if (!invocationsMatch(engine, actual, monitored)) {
currentMatchPtr = 0;
inMatch = false;
} else {
// They do match, so move on to next
currentMatchPtr++;
}
} else {
// not exclusive, so if this isn't a match, just move on.
if (invocationsMatch(engine, actual, monitored)) {
currentMatchPtr++;
}
}
}
// If we've matched all our monitored invocations, test passed.
if (currentMatchPtr == monitoredInvocations.size()) {
return;
}
}
// If we got to here, we didn't find a match. Test failed.
throw new AssertionFailedError(
makeOrderMismatchMessage(monitoredInvocations, exclusiveMode, allCalledChecked));
}
static String makeOrderMismatchMessage(final List expected,
final boolean exclusiveMode,
final boolean allCalledChecked) {
final StringBuilder sb = new StringBuilder()
.append(StringConsts.EXPECTED_INVOCATIONS)
.append(StringConsts.EOL);
expected.forEach(i -> {
sb.append(StringConsts.TAB);
sb.append(i.toString());
sb.append(StringConsts.EOL);
});
if (exclusiveMode) {
sb.append(StringConsts.EXCLUSIVELY);
}
sb.append(StringConsts.IN_ORDER_BUT_WERE);
if (!allCalledChecked) {
sb.append(StringConsts.NOT_INVOKED_OR);
}
sb.append(StringConsts.OUT_OF_ORDER);
return sb.toString();
}
}
