diff --git a/dsms-engine-application/src/test/java/com/dsms/common/prometheus/builder/InstantQueryBuilderTest.java b/dsms-engine-application/src/test/java/com/dsms/common/prometheus/builder/InstantQueryBuilderTest.java
new file mode 100644
index 0000000000000000000000000000000000000000..b650f596d9c0baf0afd9d328b1515ce26d2b762f
--- /dev/null
+++ b/dsms-engine-application/src/test/java/com/dsms/common/prometheus/builder/InstantQueryBuilderTest.java
@@ -0,0 +1,26 @@
+package com.dsms.common.prometheus.builder;
+
+import static com.dsms.common.constant.PromQL.NODE_MEMORY_TOTAL;
+
+import java.net.URI;
+import org.assertj.core.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+class InstantQueryBuilderTest {
+
+    @Test
+    void withBuilder() {
+        String prometheusUrl = "http://prometheus:9095";
+        InstantQueryBuilder instantQueryBuilder = new InstantQueryBuilder(prometheusUrl);
+        URI build1 = instantQueryBuilder.withQuery(NODE_MEMORY_TOTAL).build();
+        Assertions.assertThat(build1)
+            .hasHost("prometheus")
+            .hasPort(9095)
+            .hasParameter("query", NODE_MEMORY_TOTAL);
+        URI epochTime = instantQueryBuilder.withEpochTime(1000).build();
+        Assertions.assertThat(epochTime).hasParameter("time", "1000");
+
+        URI timeout = instantQueryBuilder.withTimeout("1000").build();
+        Assertions.assertThat(timeout).hasParameter("timeout", "1000");
+    }
+}
\ No newline at end of file