Tests: Fix cli tests to work with promise handling in qunit callbacks

test/cli/fixtures/expected/tap-outputs.js

@@ -126,15 +126,21 @@ not ok 2 global failure
 # fail 2
 `,
 
+	// in node 8, the stack trace includes 'at <anonymous>. But not in node 6 or 10.
 	"qunit no-tests":
 `TAP version 13
 not ok 1 global failure
   ---
   message: "No tests were run."
   severity: failed
-  actual: null
+  actual: {}
   expected: undefined
-  stack: undefined:undefined
+  stack: Error: No tests were run.
+    at done (.*)
+    at advanceTestQueue (.*)
+    at Object.advance (.*)
+    at unblockAndAdvanceQueue (.*)(\n    at <anonymous>)?
+    at process._tickCallback (.*)
   ...
 1..1
 # pass 0
@@ -143,15 +149,21 @@ not ok 1 global failure
 # fail 1
 `,
 
+	// in node 8, the stack trace includes 'at <anonymous>. But not in node 6 or 10.
 	"qunit qunit --filter 'no matches' test":
 `TAP version 13
 not ok 1 global failure
   ---
   message: "No tests matched the filter "no matches"."
   severity: failed
-  actual: null
+  actual: {}
   expected: undefined
-  stack: undefined:undefined
+  stack: Error: No tests matched the filter "no matches".
+    at done (.*)
+    at advanceTestQueue (.*)
+    at Object.advance (.*)
+    at unblockAndAdvanceQueue (.*)(\n    at <anonymous>)?
+    at process._tickCallback (.*)
   ...
 1..1
 # pass 0

test/cli/main.js

@@ -94,7 +94,8 @@ QUnit.module( "CLI Main", function() {
 		} catch ( e ) {
 			assert.equal( e.code, 1 );
 			assert.equal( e.stderr, "" );
-			assert.equal( e.stdout, expectedOutput[ command ] );
+			const re = new RegExp( expectedOutput[ command ] );
+			assert.equal( re.test( e.stdout ), true );
 		}
 	} ) );
 
@@ -153,7 +154,8 @@ QUnit.module( "CLI Main", function() {
 			} catch ( e ) {
 				assert.equal( e.code, 1 );
 				assert.equal( e.stderr, "" );
-				assert.equal( e.stdout, expectedOutput[ command ] );
+				const re = new RegExp( expectedOutput[ command ] );
+				assert.equal( re.test( e.stdout ), true );
 			}
 		} ) );
 	} );