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Merge pull request #23 from Laksuh/master
Add assertion for number of times
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97 changes: 97 additions & 0 deletions
97
src/main/java/de/dm/infrastructure/logcapture/ExpectedTimes.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,97 @@ | ||
| package de.dm.infrastructure.logcapture; | ||
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| import lombok.Getter; | ||
| import lombok.RequiredArgsConstructor; | ||
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| import static de.dm.infrastructure.logcapture.ExpectedTimes.ComparisonStrategy.AT_LEAST; | ||
| import static de.dm.infrastructure.logcapture.ExpectedTimes.ComparisonStrategy.AT_MOST; | ||
| import static de.dm.infrastructure.logcapture.ExpectedTimes.ComparisonStrategy.EQUAL; | ||
| import static lombok.AccessLevel.PRIVATE; | ||
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| /** | ||
| * define expected repetitions of log messages | ||
| */ | ||
| @Getter | ||
| @RequiredArgsConstructor(access = PRIVATE) | ||
| public class ExpectedTimes { | ||
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| private final int referenceValue; | ||
| private final ComparisonStrategy comparisonStrategy; | ||
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| @RequiredArgsConstructor | ||
| enum ComparisonStrategy { | ||
| EQUAL("exactly"), | ||
| AT_LEAST("at least"), | ||
| AT_MOST("at most"); | ||
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| final String strategyName; | ||
| } | ||
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| /** | ||
| * Asserts that the log entry is logged exactly as often as the given times. | ||
| * | ||
| * <p> | ||
| * <b>Note:</b> {@link LogCapture#assertNotLogged(LogExpectation...)} can be used | ||
| * instead of {@code times(0)} to test that something has not been logged at all | ||
| * </p> | ||
| * | ||
| * @param times exact number of expected log messages | ||
| * | ||
| * @return Times object which asserts with exactly the given times | ||
| * | ||
| * @throws IllegalArgumentException if expected occurrences are negative | ||
| */ | ||
| public static ExpectedTimes times(int times) { | ||
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| if (times < 0) { | ||
| throw new IllegalArgumentException("Number of log message occurrences that are expected must be positive."); | ||
| } | ||
| return new ExpectedTimes(times, EQUAL); | ||
| } | ||
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| /** | ||
| * Asserts that the log entry is logged exactly once. | ||
| * | ||
| * @return Times object which asserts with exactly once | ||
| */ | ||
| public static ExpectedTimes once() { | ||
| return new ExpectedTimes(1, EQUAL); | ||
| } | ||
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| /** | ||
| * Asserts that the log entry is logged at least as often as the given times. | ||
| * | ||
| * @param min minimum number of log message occurrences, must be at least 1 | ||
| * | ||
| * @return Times object which asserts at least the given times | ||
| * | ||
| * @throws IllegalArgumentException if expected occurrences are negative | ||
| */ | ||
| public static ExpectedTimes atLeast(int min) { | ||
| if (min < 1) { | ||
| throw new IllegalArgumentException("Minimum number of log message occurrences that are expected must be greater than 0."); | ||
| } | ||
| return new ExpectedTimes(min, AT_LEAST); | ||
| } | ||
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| /** | ||
| * Asserts that the log entry is logged at most as often as the given maximum. | ||
| * | ||
| * <p> | ||
| * <b>Note:</b> {@link LogCapture#assertNotLogged(LogExpectation...)} can be used | ||
| * instead of <code>atMost(0)</code> to test that something has not been logged at all | ||
| * </p> | ||
| * | ||
| * @param max maximum number of log message occurrences, must be positive | ||
| * | ||
| * @return Times object which asserts at most the given times | ||
| * | ||
| * @throws IllegalArgumentException if expected occurrences are negative | ||
| */ | ||
| public static ExpectedTimes atMost(int max) { | ||
| if (max < 0) { | ||
| throw new IllegalArgumentException("Maximum number of log message occurrences that are expected must be greater than 0."); | ||
| } | ||
| return new ExpectedTimes(max, AT_MOST); | ||
| } | ||
| } |
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