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Merge branch '2.3.x'

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Closes gh-22636
This commit is contained in:
Andy Wilkinson 2020-07-29 11:05:51 +01:00
commit 7aa093e0ca
1 changed files with 16 additions and 10 deletions
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26
spring-boot-project/spring-boot/src/test/java/org/springframework/boot/context/properties/source/ConfigurationPropertySourcesTests.java
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@ -20,6 +20,7 @@ import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.concurrent.TimeUnit;
import java.util.function.Function;
import org.junit.jupiter.api.Disabled;
import org.junit.jupiter.api.Test;
@ -149,17 +150,22 @@ class ConfigurationPropertySourcesTests {
@Test // gh-21416
void descendantOfPropertyAccessWhenMutableWithCacheShouldBePerformant() {
StandardEnvironment environment = createPerformanceTestEnvironment(true);
Iterable<ConfigurationPropertySource> sources = ConfigurationPropertySources.get(environment);
ConfigurationPropertyName missing = ConfigurationPropertyName.of("missing");
long start = System.nanoTime();
for (int i = 0; i < 1000; i++) {
for (ConfigurationPropertySource source : sources) {
assertThat(source.containsDescendantOf(missing)).isEqualTo(ConfigurationPropertyState.ABSENT);
Function<StandardEnvironment, Long> descendantOfPerformance = (environment) -> {
Iterable<ConfigurationPropertySource> sources = ConfigurationPropertySources.get(environment);
ConfigurationPropertyName missing = ConfigurationPropertyName.of("missing");
long start = System.nanoTime();
for (int i = 0; i < 1000; i++) {
for (ConfigurationPropertySource source : sources) {
assertThat(source.containsDescendantOf(missing)).isEqualTo(ConfigurationPropertyState.ABSENT);
}
}
}
long total = TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - start);
assertThat(total).isLessThan(1000);
return TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - start);
};
StandardEnvironment environment = createPerformanceTestEnvironment(false);
long baseline = descendantOfPerformance.apply(environment);
ConfigurationPropertyCaching.get(environment).enable();
long cached = descendantOfPerformance.apply(environment);
assertThat(cached).isLessThan(baseline / 2);
}
private long testPropertySourcePerformance(boolean immutable) {