SERVER-41903 Validate server parameter names during config validation

(cherry picked from commit f8cdf774a81b3af8825ac76eaebef1fd48183b5a)

1 files changed, 36 insertions, 0 deletions

diff --git a/jstests/noPassthrough/unknown-set-parameter.js b/jstests/noPassthrough/unknown-set-parameter.js
new file mode 100644
index 00000000000..1e72694e276
--- /dev/null
+++ b/jstests/noPassthrough/unknown-set-parameter.js
@@ -0,0 +1,36 @@
+// Verify error is produced when specifying an invalid set parameter.
+
+(function() {
+    'use strict';
+
+    function tryRun(arg) {
+        // runMongoProgram helpfully makes certain that we pass a port when invoking mongod.
+        return runMongoProgram('./mongod', '--port', 0, '--setParameter', arg, '--outputConfig');
+    }
+
+    // Positive case, valid setparam.
+    clearRawMongoProgramOutput();
+    const valid = tryRun('enableTestCommands=1');
+    assert.eq(valid, 0);
+    const validOutput = rawMongoProgramOutput();
+    assert.gte(validOutput.search(/enableTestCommands: 1/), 0, validOutput);
+
+    // Negative case, invalid setparam.
+    clearRawMongoProgramOutput();
+    const foo = tryRun('foo=bar');
+    assert.neq(foo, 0);
+    const fooOutput = rawMongoProgramOutput();
+    assert.gte(fooOutput.search(/Unknown --setParameter 'foo'/), 0, fooOutput);
+
+    // Negative case, valid but unavailable setparam.
+    clearRawMongoProgramOutput();
+    const graph = tryRun('roleGraphInvalidationIsFatal=true');
+    assert.neq(graph, 0);
+    const graphOutput = rawMongoProgramOutput();
+    assert.gte(
+        graphOutput.search(
+            /--setParameter 'roleGraphInvalidationIsFatal' only available when used with 'enableTestCommands'/),
+        0,
+        fooOutput);
+
+}());