diff --git a/t/t9818-git-p4-block.sh b/t/t9818-git-p4-block.sh
index 153b20afbd..79765a4a4e 100755
--- a/t/t9818-git-p4-block.sh
+++ b/t/t9818-git-p4-block.sh
@@ -8,18 +8,21 @@ test_expect_success 'start p4d' '
 	start_p4d
 '
 
-test_expect_success 'Create a repo with ~100 changes' '
+test_expect_success 'Create a repo with many changes' '
 	(
-		cd "$cli" &&
+		client_view "//depot/included/... //client/included/..." \
+			    "//depot/excluded/... //client/excluded/..." &&
+		mkdir -p "$cli/included" "$cli/excluded" &&
+		cd "$cli/included" &&
 		>file.txt &&
 		p4 add file.txt &&
 		p4 submit -d "Add file.txt" &&
-		for i in $(test_seq 0 9)
+		for i in $(test_seq 0 5)
 		do
 			>outer$i.txt &&
 			p4 add outer$i.txt &&
 			p4 submit -d "Adding outer$i.txt" &&
-			for j in $(test_seq 0 9)
+			for j in $(test_seq 0 5)
 			do
 				p4 edit file.txt &&
 				echo $i$j >file.txt &&
@@ -30,33 +33,68 @@ test_expect_success 'Create a repo with ~100 changes' '
 '
 
 test_expect_success 'Clone the repo' '
-	git p4 clone --dest="$git" --changes-block-size=10 --verbose //depot@all
+	git p4 clone --dest="$git" --changes-block-size=7 --verbose //depot/included@all
 '
 
 test_expect_success 'All files are present' '
 	echo file.txt >expected &&
 	test_write_lines outer0.txt outer1.txt outer2.txt outer3.txt outer4.txt >>expected &&
-	test_write_lines outer5.txt outer6.txt outer7.txt outer8.txt outer9.txt >>expected &&
+	test_write_lines outer5.txt >>expected &&
 	ls "$git" >current &&
 	test_cmp expected current
 '
 
 test_expect_success 'file.txt is correct' '
-	echo 99 >expected &&
+	echo 55 >expected &&
 	test_cmp expected "$git/file.txt"
 '
 
 test_expect_success 'Correct number of commits' '
 	(cd "$git" && git log --oneline) >log &&
-	test_line_count = 111 log
+	wc -l log &&
+	test_line_count = 43 log
 '
 
 test_expect_success 'Previous version of file.txt is correct' '
 	(cd "$git" && git checkout HEAD^^) &&
-	echo 97 >expected &&
+	echo 53 >expected &&
 	test_cmp expected "$git/file.txt"
 '
 
+# Test git-p4 sync, with some files outside the client specification.
+
+p4_add_file() {
+	(cd "$cli" &&
+		>$1 &&
+		p4 add $1 &&
+		p4 submit -d "Added a file" $1
+	)
+}
+
+test_expect_success 'Add some more files' '
+	for i in $(test_seq 0 10)
+	do
+		p4_add_file "included/x$i" &&
+		p4_add_file "excluded/x$i"
+	done &&
+	for i in $(test_seq 0 10)
+	do
+		p4_add_file "excluded/y$i"
+	done
+'
+
+# This should pick up the 10 new files in "included", but not be confused
+# by the additional files in "excluded"
+test_expect_success 'Syncing files' '
+	(
+		cd "$git" &&
+		git p4 sync --changes-block-size=7 &&
+		git checkout p4/master &&
+		ls -l x* > log &&
+		test_line_count = 11 log
+	)
+'
+
 test_expect_success 'kill p4d' '
 	kill_p4d
 '