1 files changed, 50 insertions, 0 deletions
diff --git a/jstests/libs/cluster_server_parameter_utils.js b/jstests/libs/cluster_server_parameter_utils.js
index 7a0149cc7f9..4f84d5f42a6 100644
--- a/jstests/libs/cluster_server_parameter_utils.js
+++ b/jstests/libs/cluster_server_parameter_utils.js
@@ -763,3 +763,53 @@ export function testInvalidClusterParameterCommands(conn, tenantId) {
         }));
     }
 }
+
+// name => name of cluster parameter to get
+// expectedValue => document that should be equal to document describing CP's value, excluding the
+// _id
+function checkGetClusterParameterMatch(db, tenantToken, name, expectedValue) {
+    const cps = assert
+                    .commandWorked(
+                        runCommandWithSecurityToken(tenantToken, db, {getClusterParameter: name}))
+                    .clusterParameters;
+    // confirm we got the document we were looking for.
+    assert.eq(cps.length, 1);
+    let actualCp = cps[0];
+    assert.eq(actualCp._id, name);
+    // confirm the value is expected.
+    // remove the id and clusterParameterTime fields
+    delete actualCp._id;
+    delete actualCp.clusterParameterTime;
+    assert(bsonWoCompare(actualCp, expectedValue) !== 0,
+           'Server parameter mismatch for parameter ' +
+               '\n' +
+               'Expected: ' + tojson(expectedValue) + '\n' +
+               'Actual: ' + tojson(actualCp));
+}
+
+// Tests that getClusterParameter: "*" all have an _id element, and that all the parameters
+// it returns match the result of directly querying with getClusterParameter: <paramName>.
+export function testGetClusterParameterStar(conn, tenantId) {
+    let adminDB, getClusterParameterFn;
+    if (conn instanceof ReplSetTest) {
+        adminDB = conn.getPrimary().getDB('admin');
+    } else if (conn instanceof ShardingTest) {
+        adminDB = conn.s0.getDB('admin');
+    } else {
+        adminDB = conn.getDB('admin');
+    }
+
+    const tenantToken =
+        tenantId ? makeUnsignedSecurityToken(tenantId, {expectPrefix: false}) : undefined;
+
+    const allParameters = assert
+                              .commandWorked(runCommandWithSecurityToken(
+                                  tenantToken, adminDB, {getClusterParameter: '*'}))
+                              .clusterParameters;
+    for (const param of allParameters) {
+        assert(param.hasOwnProperty("_id"),
+               'Entry in {getClusterParameter: "*"} result is missing _id key:\n' + tojson(param));
+        const name = param["_id"];
+        checkGetClusterParameterMatch(adminDB, tenantToken, name, param);
+    }
+}