make protobuf optional

Signed-off-by: Gregor Zeitlinger <[email protected]>

Author: zeitlinger

integration-tests/it-exporter/it-exporter-test/src/test/java/io/prometheus/metrics/it/exporter/test/ExporterIT.java

@@ -106,7 +106,10 @@ public void testPrometheusProtobufDebugFormat(String format, String expected) th
     assertThat(response.status).isEqualTo(200);
     assertContentType("text/plain;charset=utf-8", response.getHeader("Content-Type"));
     assertThat(response.stringBody().trim())
-        .isEqualTo(Resources.toString(Resources.getResource(expected), UTF_8).trim());
+        .isEqualTo(
+            Resources.toString(Resources.getResource(expected), UTF_8)
+                .trim()
+                .replace("<app>", sampleApp));
   }
 
   @Test

integration-tests/it-exporter/it-exporter-test/src/test/resources/debug-openmetrics.txt

@@ -1,6 +1,6 @@
 # TYPE integration_test info
 # HELP integration_test Info metric on this integration test
-integration_test_info{test_name="exporter-servlet-tomcat-sample"} 1
+integration_test_info{test_name="<app>"} 1
 # TYPE temperature_celsius gauge
 # UNIT temperature_celsius celsius
 # HELP temperature_celsius Temperature in Celsius

integration-tests/it-exporter/it-exporter-test/src/test/resources/debug-protobuf.txt

@@ -4,7 +4,7 @@ type: GAUGE
 metric {
   label {
     name: "test_name"
-    value: "exporter-servlet-tomcat-sample"
+    value: "<app>"
   }
   gauge {
     value: 1.0

integration-tests/it-exporter/it-exporter-test/src/test/resources/debug-text.txt

@@ -1,6 +1,6 @@
 # HELP integration_test_info Info metric on this integration test
 # TYPE integration_test_info gauge
-integration_test_info{test_name="exporter-servlet-tomcat-sample"} 1
+integration_test_info{test_name="<app>"} 1
 # HELP temperature_celsius Temperature in Celsius
 # TYPE temperature_celsius gauge
 temperature_celsius{location="inside"} 23.0