Update DropwizardExportsTest.java

Signed-off-by: Kinshuk Bairagi <[email protected]>

Author: kingster

prometheus-metrics-instrumentation-dropwizard/src/test/java/io/prometheus/metrics/instrumentation/dropwizard/DropwizardExportsTest.java

@@ -2,8 +2,6 @@
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.data.Offset.offset;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
 
 import com.codahale.metrics.*;
 import io.prometheus.metrics.expositionformats.OpenMetricsTextFormatWriter;
@@ -26,17 +24,19 @@ class DropwizardExportsTest {
   @BeforeEach
   public void setUp() {
     metricRegistry = new MetricRegistry();
-    io.prometheus.metrics.instrumentation.dropwizard.DropwizardExports.builder().dropwizardRegistry(metricRegistry).register(registry);
+    io.prometheus.metrics.instrumentation.dropwizard.DropwizardExports.builder()
+        .dropwizardRegistry(metricRegistry)
+        .register(registry);
   }
 
   @org.junit.jupiter.api.Test
   public void testCounter() {
     metricRegistry.counter("foo.bar").inc(1);
     String expected =
-            "# TYPE foo_bar counter\n"
-                    + "# HELP foo_bar Generated from Dropwizard metric import (metric=foo.bar, type=com.codahale.metrics.Counter)\n"
-                    + "foo_bar_total 1.0\n"
-                    + "# EOF\n";
+        "# TYPE foo_bar counter\n"
+            + "# HELP foo_bar Generated from Dropwizard metric import (metric=foo.bar, type=com.codahale.metrics.Counter)\n"
+            + "foo_bar_total 1.0\n"
+            + "# EOF\n";
 
     assertThat(convertToOpenMetricsFormat()).isEqualTo(expected);
   }
@@ -45,40 +45,40 @@ public void testCounter() {
   public void testGauge() {
     // don't convert to lambda, as we need to test the type
     Gauge<Integer> integerGauge =
-            new Gauge<Integer>() {
-              @Override
-              public Integer getValue() {
-                return 1234;
-              }
-            };
+        new Gauge<Integer>() {
+          @Override
+          public Integer getValue() {
+            return 1234;
+          }
+        };
     Gauge<Double> doubleGauge =
-            new Gauge<Double>() {
-              @Override
-              public Double getValue() {
-                return 1.234D;
-              }
-            };
+        new Gauge<Double>() {
+          @Override
+          public Double getValue() {
+            return 1.234D;
+          }
+        };
     Gauge<Long> longGauge =
-            new Gauge<Long>() {
-              @Override
-              public Long getValue() {
-                return 1234L;
-              }
-            };
+        new Gauge<Long>() {
+          @Override
+          public Long getValue() {
+            return 1234L;
+          }
+        };
     Gauge<Float> floatGauge =
-            new Gauge<Float>() {
-              @Override
-              public Float getValue() {
-                return 0.1234F;
-              }
-            };
+        new Gauge<Float>() {
+          @Override
+          public Float getValue() {
+            return 0.1234F;
+          }
+        };
     Gauge<Boolean> booleanGauge =
-            new Gauge<Boolean>() {
-              @Override
-              public Boolean getValue() {
-                return true;
-              }
-            };
+        new Gauge<Boolean>() {
+          @Override
+          public Boolean getValue() {
+            return true;
+          }
+        };
 
     metricRegistry.register("double.gauge", doubleGauge);
     metricRegistry.register("long.gauge", longGauge);
@@ -87,22 +87,22 @@ public Boolean getValue() {
     metricRegistry.register("boolean.gauge", booleanGauge);
 
     String expected =
-            "# TYPE boolean_gauge gauge\n"
-                    + "# HELP boolean_gauge Generated from Dropwizard metric import (metric=boolean.gauge, type=io.prometheus.metrics.instrumentation.dropwizard.DropwizardExportsTest$5)\n"
-                    + "boolean_gauge 1.0\n"
-                    + "# TYPE double_gauge gauge\n"
-                    + "# HELP double_gauge Generated from Dropwizard metric import (metric=double.gauge, type=io.prometheus.metrics.instrumentation.dropwizard.DropwizardExportsTest$2)\n"
-                    + "double_gauge 1.234\n"
-                    + "# TYPE float_gauge gauge\n"
-                    + "# HELP float_gauge Generated from Dropwizard metric import (metric=float.gauge, type=io.prometheus.metrics.instrumentation.dropwizard.DropwizardExportsTest$4)\n"
-                    + "float_gauge 0.1234000027179718\n"
-                    + "# TYPE integer_gauge gauge\n"
-                    + "# HELP integer_gauge Generated from Dropwizard metric import (metric=integer.gauge, type=io.prometheus.metrics.instrumentation.dropwizard.DropwizardExportsTest$1)\n"
-                    + "integer_gauge 1234.0\n"
-                    + "# TYPE long_gauge gauge\n"
-                    + "# HELP long_gauge Generated from Dropwizard metric import (metric=long.gauge, type=io.prometheus.metrics.instrumentation.dropwizard.DropwizardExportsTest$3)\n"
-                    + "long_gauge 1234.0\n"
-                    + "# EOF\n";
+        "# TYPE boolean_gauge gauge\n"
+            + "# HELP boolean_gauge Generated from Dropwizard metric import (metric=boolean.gauge, type=io.prometheus.metrics.instrumentation.dropwizard.DropwizardExportsTest$5)\n"
+            + "boolean_gauge 1.0\n"
+            + "# TYPE double_gauge gauge\n"
+            + "# HELP double_gauge Generated from Dropwizard metric import (metric=double.gauge, type=io.prometheus.metrics.instrumentation.dropwizard.DropwizardExportsTest$2)\n"
+            + "double_gauge 1.234\n"
+            + "# TYPE float_gauge gauge\n"
+            + "# HELP float_gauge Generated from Dropwizard metric import (metric=float.gauge, type=io.prometheus.metrics.instrumentation.dropwizard.DropwizardExportsTest$4)\n"
+            + "float_gauge 0.1234000027179718\n"
+            + "# TYPE integer_gauge gauge\n"
+            + "# HELP integer_gauge Generated from Dropwizard metric import (metric=integer.gauge, type=io.prometheus.metrics.instrumentation.dropwizard.DropwizardExportsTest$1)\n"
+            + "integer_gauge 1234.0\n"
+            + "# TYPE long_gauge gauge\n"
+            + "# HELP long_gauge Generated from Dropwizard metric import (metric=long.gauge, type=io.prometheus.metrics.instrumentation.dropwizard.DropwizardExportsTest$3)\n"
+            + "long_gauge 1234.0\n"
+            + "# EOF\n";
 
     assertThat(convertToOpenMetricsFormat()).isEqualTo(expected);
   }
@@ -130,7 +130,9 @@ public void testHistogram() {
     // just test the standard mapper
     final MetricRegistry metricRegistry = new MetricRegistry();
     PrometheusRegistry pmRegistry = new PrometheusRegistry();
-    io.prometheus.metrics.instrumentation.dropwizard.DropwizardExports.builder().dropwizardRegistry(metricRegistry).register(pmRegistry);
+    io.prometheus.metrics.instrumentation.dropwizard.DropwizardExports.builder()
+        .dropwizardRegistry(metricRegistry)
+        .register(pmRegistry);
 
     Histogram hist = metricRegistry.histogram("hist");
     int i = 0;
@@ -175,8 +177,8 @@ public void testHistogram() {
     SummarySnapshot snapshot = (SummarySnapshot) snapshots.get(0);
     assertThat(snapshot.getMetadata().getName()).isEqualTo("hist");
     assertThat(snapshot.getMetadata().getHelp())
-            .isEqualTo(
-                    "Generated from Dropwizard metric import (metric=hist, type=com.codahale.metrics.Histogram)");
+        .isEqualTo(
+            "Generated from Dropwizard metric import (metric=hist, type=com.codahale.metrics.Histogram)");
     assertThat(snapshot.getDataPoints().size()).isOne();
     SummarySnapshot.SummaryDataPointSnapshot dataPoint = snapshot.getDataPoints().get(0);
     assertThat(dataPoint.hasCount()).isTrue();
@@ -205,17 +207,18 @@ public void testMeter() {
     meter.mark();
 
     String expected =
-            "# TYPE meter counter\n"
-                    + "# HELP meter Generated from Dropwizard metric import (metric=meter_total, type=com.codahale.metrics.Meter)\n"
-                    + "meter_total 2.0\n"
-                    + "# EOF\n";
+        "# TYPE meter counter\n"
+            + "# HELP meter Generated from Dropwizard metric import (metric=meter_total, type=com.codahale.metrics.Meter)\n"
+            + "meter_total 2.0\n"
+            + "# EOF\n";
     assertThat(convertToOpenMetricsFormat()).isEqualTo(expected);
   }
 
   @org.junit.jupiter.api.Test
   public void testTimer() throws InterruptedException {
     final MetricRegistry metricRegistry = new MetricRegistry();
-    io.prometheus.metrics.instrumentation.dropwizard.DropwizardExports exports = new DropwizardExports(metricRegistry);
+    io.prometheus.metrics.instrumentation.dropwizard.DropwizardExports exports =
+        new DropwizardExports(metricRegistry);
     Timer t = metricRegistry.timer("timer");
     Timer.Context time = t.time();
     Thread.sleep(100L);
@@ -224,17 +227,17 @@ public void testTimer() throws InterruptedException {
     System.out.println(timeSpentMillis);
 
     SummarySnapshot.SummaryDataPointSnapshot dataPointSnapshot =
-            (SummarySnapshot.SummaryDataPointSnapshot)
-                    exports.collect().stream().flatMap(i -> i.getDataPoints().stream()).findFirst().get();
+        (SummarySnapshot.SummaryDataPointSnapshot)
+            exports.collect().stream().flatMap(i -> i.getDataPoints().stream()).findFirst().get();
     // We slept for 1Ms so we ensure that all timers are above 1ms:
     assertThat(dataPointSnapshot.getQuantiles().size()).isGreaterThan(1);
     dataPointSnapshot
-            .getQuantiles()
-            .forEach(
-                    i -> {
-                      System.out.println(i.getQuantile() + " : " + i.getValue());
-                      assertThat(i.getValue()).isGreaterThan(timeSpentMillis / 1000d);
-                    });
+        .getQuantiles()
+        .forEach(
+            i -> {
+              System.out.println(i.getQuantile() + " : " + i.getValue());
+              assertThat(i.getValue()).isGreaterThan(timeSpentMillis / 1000d);
+            });
     assertThat(dataPointSnapshot.getCount()).isOne();
   }
 
@@ -248,34 +251,34 @@ public void testThatMetricHelpUsesOriginalDropwizardName() {
     metricRegistry.register("my.application.namedGauge1", new ExampleDoubleGauge());
 
     String expected =
-            "# TYPE my_application_namedCounter1 counter\n"
-                    + "# HELP my_application_namedCounter1 Generated from Dropwizard metric import (metric=my.application.namedCounter1, type=com.codahale.metrics.Counter)\n"
-                    + "my_application_namedCounter1_total 0.0\n"
-                    + "# TYPE my_application_namedGauge1 gauge\n"
-                    + "# HELP my_application_namedGauge1 Generated from Dropwizard metric import (metric=my.application.namedGauge1, type=io.prometheus.metrics.instrumentation.dropwizard.DropwizardExportsTest$ExampleDoubleGauge)\n"
-                    + "my_application_namedGauge1 0.0\n"
-                    + "# TYPE my_application_namedHistogram1 summary\n"
-                    + "# HELP my_application_namedHistogram1 Generated from Dropwizard metric import (metric=my.application.namedHistogram1, type=com.codahale.metrics.Histogram)\n"
-                    + "my_application_namedHistogram1{quantile=\"0.5\"} 0.0\n"
-                    + "my_application_namedHistogram1{quantile=\"0.75\"} 0.0\n"
-                    + "my_application_namedHistogram1{quantile=\"0.95\"} 0.0\n"
-                    + "my_application_namedHistogram1{quantile=\"0.98\"} 0.0\n"
-                    + "my_application_namedHistogram1{quantile=\"0.99\"} 0.0\n"
-                    + "my_application_namedHistogram1{quantile=\"0.999\"} 0.0\n"
-                    + "my_application_namedHistogram1_count 0\n"
-                    + "# TYPE my_application_namedMeter1 counter\n"
-                    + "# HELP my_application_namedMeter1 Generated from Dropwizard metric import (metric=my.application.namedMeter1_total, type=com.codahale.metrics.Meter)\n"
-                    + "my_application_namedMeter1_total 0.0\n"
-                    + "# TYPE my_application_namedTimer1 summary\n"
-                    + "# HELP my_application_namedTimer1 Generated from Dropwizard metric import (metric=my.application.namedTimer1, type=com.codahale.metrics.Timer)\n"
-                    + "my_application_namedTimer1{quantile=\"0.5\"} 0.0\n"
-                    + "my_application_namedTimer1{quantile=\"0.75\"} 0.0\n"
-                    + "my_application_namedTimer1{quantile=\"0.95\"} 0.0\n"
-                    + "my_application_namedTimer1{quantile=\"0.98\"} 0.0\n"
-                    + "my_application_namedTimer1{quantile=\"0.99\"} 0.0\n"
-                    + "my_application_namedTimer1{quantile=\"0.999\"} 0.0\n"
-                    + "my_application_namedTimer1_count 0\n"
-                    + "# EOF\n";
+        "# TYPE my_application_namedCounter1 counter\n"
+            + "# HELP my_application_namedCounter1 Generated from Dropwizard metric import (metric=my.application.namedCounter1, type=com.codahale.metrics.Counter)\n"
+            + "my_application_namedCounter1_total 0.0\n"
+            + "# TYPE my_application_namedGauge1 gauge\n"
+            + "# HELP my_application_namedGauge1 Generated from Dropwizard metric import (metric=my.application.namedGauge1, type=io.prometheus.metrics.instrumentation.dropwizard.DropwizardExportsTest$ExampleDoubleGauge)\n"
+            + "my_application_namedGauge1 0.0\n"
+            + "# TYPE my_application_namedHistogram1 summary\n"
+            + "# HELP my_application_namedHistogram1 Generated from Dropwizard metric import (metric=my.application.namedHistogram1, type=com.codahale.metrics.Histogram)\n"
+            + "my_application_namedHistogram1{quantile=\"0.5\"} 0.0\n"
+            + "my_application_namedHistogram1{quantile=\"0.75\"} 0.0\n"
+            + "my_application_namedHistogram1{quantile=\"0.95\"} 0.0\n"
+            + "my_application_namedHistogram1{quantile=\"0.98\"} 0.0\n"
+            + "my_application_namedHistogram1{quantile=\"0.99\"} 0.0\n"
+            + "my_application_namedHistogram1{quantile=\"0.999\"} 0.0\n"
+            + "my_application_namedHistogram1_count 0\n"
+            + "# TYPE my_application_namedMeter1 counter\n"
+            + "# HELP my_application_namedMeter1 Generated from Dropwizard metric import (metric=my.application.namedMeter1_total, type=com.codahale.metrics.Meter)\n"
+            + "my_application_namedMeter1_total 0.0\n"
+            + "# TYPE my_application_namedTimer1 summary\n"
+            + "# HELP my_application_namedTimer1 Generated from Dropwizard metric import (metric=my.application.namedTimer1, type=com.codahale.metrics.Timer)\n"
+            + "my_application_namedTimer1{quantile=\"0.5\"} 0.0\n"
+            + "my_application_namedTimer1{quantile=\"0.75\"} 0.0\n"
+            + "my_application_namedTimer1{quantile=\"0.95\"} 0.0\n"
+            + "my_application_namedTimer1{quantile=\"0.98\"} 0.0\n"
+            + "my_application_namedTimer1{quantile=\"0.99\"} 0.0\n"
+            + "my_application_namedTimer1{quantile=\"0.999\"} 0.0\n"
+            + "my_application_namedTimer1_count 0\n"
+            + "# EOF\n";
     assertThat(convertToOpenMetricsFormat()).isEqualTo(expected);
   }