diff --git a/util/tests/JSON/input-number-lists.json b/util/tests/JSON/input-number-lists.json
new file mode 100644
index 00000000..a3ae25c6
--- /dev/null
+++ b/util/tests/JSON/input-number-lists.json
@@ -0,0 +1,134 @@
+{
+    "benchmarks": [
+	{
+	    "name": "iperf",
+	    "ids": "1-10+21-30",
+	    "mv-params": {
+		"global-options": [
+		    {
+			"name": "required",
+			"params": [
+			    { "arg": "time", "vals": [ "10" ], "role": "client" },
+			    { "arg": "protocol", "vals": [ "tcp" ] },
+			    { "arg": "bitrate", "vals": [ "0" ] },
+			    { "arg": "ifname", "vals": [ "default-route" ], "role": "server" }
+			]
+		    }
+		],
+		"sets": [
+		    {
+			"include": "required",
+			"params": [
+			    { "arg": "length", "vals": [ "256" ] }
+			]
+		    }
+		]
+	    }
+	},
+	{
+	    "name": "uperf",
+	    "ids": [
+		"11-20",
+		"31-39",
+		40
+	    ],
+	    "mv-params": {
+		"global-options": [
+		    {
+			"name": "required",
+			"params": [
+			    { "arg": "protocol", "vals": [ "tcp" ], "role": "client" },
+			    { "arg": "wsize", "vals": [ "256" ], "role": "client" },
+			    { "arg": "rsize", "vals": [ "256" ], "role": "client" },
+			    { "arg": "duration", "vals": [ "10" ], "role": "client" },
+			    { "arg": "ifname", "vals" : [ "default-route" ], "role": "server" }
+			]
+		    }
+		],
+		"sets": [
+		    {
+			"include": "required",
+			"params": [
+			    { "arg": "test-type", "vals": [ "stream" ], "role": "client" },
+			    { "arg": "nthreads", "vals": [ "1" ], "role": "client" }
+			]
+		    }
+		]
+	    }
+	}
+    ],
+    "tags": {
+	"foo": "bar"
+    },
+    "tool-params": [],
+    "endpoints": [
+	{
+	    "type": "remotehost",
+	    "host": "ENDPOINT_HOST_1",
+	    "user": "root",
+	    "userenv": "rhubi9",
+	    "server": "1-10+31-40",
+	    "client": [
+		"11-20",
+		"21-29",
+		30
+	    ],
+	    "profiler": 1,
+	    "config": [
+		{
+		    "targets": [
+			{ "role": "server", "ids": "1-10+31-40" },
+			{ "role": "profiler", "ids": 1 }
+		    ],
+		    "settings": {
+			"osruntime": "chroot"
+		    }
+		},
+		{
+		    "targets": [
+			{ "role": "client", "ids": [ "11-20", "21-29", 30 ] }
+		    ],
+		    "settings": {
+			"osruntime": "podman"
+		    }
+		}
+	    ]
+	},
+	{
+	    "type": "remotehost",
+	    "host": "ENDPOINT_HOST_2",
+	    "user": "root",
+	    "userenv": "rhubi8",
+	    "server": [
+		11,
+		"12-20",
+		"21-30"
+	    ],
+	    "client": "1-10+31-40",
+	    "profiler": 2,
+	    "config": [
+		{
+		    "targets": [
+			{ "role": "server", "ids": [ 11, "12-20", "21-30" ] },
+			{ "role": "profiler", "ids": 2 }
+		    ],
+		    "settings": {
+			"osruntime": "chroot"
+		    }
+		},
+		{
+		    "targets": [
+			{ "role": "client", "ids": "1-10+31-40" }
+		    ],
+		    "settings": {
+			"osruntime": "podman"
+		    }
+		}
+	    ]
+	}
+    ],
+    "run-params": {
+	"num-samples": 1,
+	"test-order": "s"
+    }
+}
diff --git a/util/tests/JSON/output-number-lists-benchmarks.json b/util/tests/JSON/output-number-lists-benchmarks.json
new file mode 100644
index 00000000..98e59c78
--- /dev/null
+++ b/util/tests/JSON/output-number-lists-benchmarks.json
@@ -0,0 +1 @@
+iperf:1-10+21-30,uperf:11-20+31-39+40
diff --git a/util/tests/JSON/output-number-lists-endpoints-0.json b/util/tests/JSON/output-number-lists-endpoints-0.json
new file mode 100644
index 00000000..cdad426d
--- /dev/null
+++ b/util/tests/JSON/output-number-lists-endpoints-0.json
@@ -0,0 +1 @@
+remotehost,host:ENDPOINT_HOST_1,user:root,userenv:rhubi9,server:1-10+31-40,client:11-20+21-29+30,profiler:1,osruntime:server-1-10+31-40:chroot,osruntime:profiler-1:chroot,osruntime:client-11-20+21-29+30:podman
diff --git a/util/tests/JSON/output-number-lists-endpoints-1.json b/util/tests/JSON/output-number-lists-endpoints-1.json
new file mode 100644
index 00000000..ba4e0a58
--- /dev/null
+++ b/util/tests/JSON/output-number-lists-endpoints-1.json
@@ -0,0 +1 @@
+remotehost,host:ENDPOINT_HOST_2,user:root,userenv:rhubi8,server:11+12-20+21-30,client:1-10+31-40,profiler:2,osruntime:server-11+12-20+21-30:chroot,osruntime:profiler-2:chroot,osruntime:client-1-10+31-40:podman
diff --git a/util/tests/test-blockbreaker.py b/util/tests/test-blockbreaker.py
index 3697ae1d..518dcd06 100755
--- a/util/tests/test-blockbreaker.py
+++ b/util/tests/test-blockbreaker.py
@@ -180,3 +180,30 @@ def test_dump_json_mvparams_index1(self, load_json_file):
         input_json = blockbreaker.dump_json(benchmark_blk, "mv-params", 0)
         expected_output = self._load_file("output-multibench-k8s-remotehost-mvparams1.json")
         assert input_json == expected_output
+
+    """Test if get_bench_ids returns the correct stream"""
+    @pytest.mark.parametrize("load_json_file",
+                             [ "input-number-lists.json" ], indirect = True)
+    def test_get_bench_ids_benchmarks(self, load_json_file):
+        benchmarks_stream = blockbreaker.get_bench_ids(load_json_file, "benchmarks")
+        expected_stream = self._load_file("output-number-lists-benchmarks.json")
+
+        assert expected_stream in benchmarks_stream
+
+    """Test if json_to_stream properly processes input-number-lists.json endpoint 0"""
+    @pytest.mark.parametrize("load_json_file",
+                             [ "input-number-lists.json" ], indirect = True)
+    def test_json_to_stream_endpoints_number_lists_0(self, load_json_file):
+        endpoint_0_stream = blockbreaker.json_to_stream(load_json_file, "endpoints", 0)
+        expected_stream = self._load_file("output-number-lists-endpoints-0.json")
+
+        assert expected_stream in endpoint_0_stream
+
+    """Test if json_to_stream properly processes input-number-lists.json endpoint 1"""
+    @pytest.mark.parametrize("load_json_file",
+                             [ "input-number-lists.json" ], indirect = True)
+    def test_json_to_stream_endpoints_number_lists_1(self, load_json_file):
+        endpoint_1_stream = blockbreaker.json_to_stream(load_json_file, "endpoints", 1)
+        expected_stream = self._load_file("output-number-lists-endpoints-1.json")
+
+        assert expected_stream in endpoint_1_stream
diff --git a/util/tests/test-validate_run_file.py b/util/tests/test-validate_run_file.py
index 2874e7ae..a98a146a 100755
--- a/util/tests/test-validate_run_file.py
+++ b/util/tests/test-validate_run_file.py
@@ -9,7 +9,17 @@ class TestValidateRunFile:
 
     """Validate all ci runfiles"""
     @pytest.mark.parametrize("runfile", glob.glob("tests/JSON/ci-*.json"))
-    def test_validate_run_file(self, runfile, capsys):
+    def test_validate_ci_run_files(self, runfile, capsys):
+        validate = validate_run_file.validate(runfile)
+        out, err = capsys.readouterr()
+        assert validate == 0
+        assert "[ OK ]" in out
+        assert err == ""
+
+    """Validate other runfiles"""
+    @pytest.mark.parametrize("runfile",
+                             [ "tests/JSON/input-number-lists.json" ])
+    def test_validate_other_run_files(self, runfile, capsys):
         validate = validate_run_file.validate(runfile)
         out, err = capsys.readouterr()
         assert validate == 0