diff --git a/Testing/Data/Compare/Dir1/dir1only_diff/file1.txt b/Testing/Data/Compare/Dir1/dir1only_diff/file1.txt
new file mode 100644
index 00000000000..9ae9e86b7bd
--- /dev/null
+++ b/Testing/Data/Compare/Dir1/dir1only_diff/file1.txt
@@ -0,0 +1 @@
+ab
\ No newline at end of file
diff --git a/Testing/Data/Compare/Dir1/dir1only_diff/file2.txt b/Testing/Data/Compare/Dir1/dir1only_diff/file2.txt
new file mode 100644
index 00000000000..b5b5773c405
--- /dev/null
+++ b/Testing/Data/Compare/Dir1/dir1only_diff/file2.txt
@@ -0,0 +1 @@
+bb
\ No newline at end of file
diff --git a/Testing/Data/Compare/Dir1/dir2only_diff/file1.txt b/Testing/Data/Compare/Dir1/dir2only_diff/file1.txt
new file mode 100644
index 00000000000..2e65efe2a14
--- /dev/null
+++ b/Testing/Data/Compare/Dir1/dir2only_diff/file1.txt
@@ -0,0 +1 @@
+a
\ No newline at end of file
diff --git a/Testing/Data/Compare/Dir1/dir2only_diff/file2.txt b/Testing/Data/Compare/Dir1/dir2only_diff/file2.txt
new file mode 100644
index 00000000000..63d8dbd40c2
--- /dev/null
+++ b/Testing/Data/Compare/Dir1/dir2only_diff/file2.txt
@@ -0,0 +1 @@
+b
\ No newline at end of file
diff --git a/Testing/Data/Compare/Dir1/dir3only_diff/file1.txt b/Testing/Data/Compare/Dir1/dir3only_diff/file1.txt
new file mode 100644
index 00000000000..2e65efe2a14
--- /dev/null
+++ b/Testing/Data/Compare/Dir1/dir3only_diff/file1.txt
@@ -0,0 +1 @@
+a
\ No newline at end of file
diff --git a/Testing/Data/Compare/Dir1/dir3only_diff/file2.txt b/Testing/Data/Compare/Dir1/dir3only_diff/file2.txt
new file mode 100644
index 00000000000..63d8dbd40c2
--- /dev/null
+++ b/Testing/Data/Compare/Dir1/dir3only_diff/file2.txt
@@ -0,0 +1 @@
+b
\ No newline at end of file
diff --git a/Testing/Data/Compare/Dir2/dir1only_diff/file1.txt b/Testing/Data/Compare/Dir2/dir1only_diff/file1.txt
new file mode 100644
index 00000000000..2e65efe2a14
--- /dev/null
+++ b/Testing/Data/Compare/Dir2/dir1only_diff/file1.txt
@@ -0,0 +1 @@
+a
\ No newline at end of file
diff --git a/Testing/Data/Compare/Dir2/dir1only_diff/file2.txt b/Testing/Data/Compare/Dir2/dir1only_diff/file2.txt
new file mode 100644
index 00000000000..63d8dbd40c2
--- /dev/null
+++ b/Testing/Data/Compare/Dir2/dir1only_diff/file2.txt
@@ -0,0 +1 @@
+b
\ No newline at end of file
diff --git a/Testing/Data/Compare/Dir2/dir2only_diff/file1.txt b/Testing/Data/Compare/Dir2/dir2only_diff/file1.txt
new file mode 100644
index 00000000000..9ae9e86b7bd
--- /dev/null
+++ b/Testing/Data/Compare/Dir2/dir2only_diff/file1.txt
@@ -0,0 +1 @@
+ab
\ No newline at end of file
diff --git a/Testing/Data/Compare/Dir2/dir2only_diff/file2.txt b/Testing/Data/Compare/Dir2/dir2only_diff/file2.txt
new file mode 100644
index 00000000000..b5b5773c405
--- /dev/null
+++ b/Testing/Data/Compare/Dir2/dir2only_diff/file2.txt
@@ -0,0 +1 @@
+bb
\ No newline at end of file
diff --git a/Testing/Data/Compare/Dir2/dir3only_diff/file1.txt b/Testing/Data/Compare/Dir2/dir3only_diff/file1.txt
new file mode 100644
index 00000000000..2e65efe2a14
--- /dev/null
+++ b/Testing/Data/Compare/Dir2/dir3only_diff/file1.txt
@@ -0,0 +1 @@
+a
\ No newline at end of file
diff --git a/Testing/Data/Compare/Dir2/dir3only_diff/file2.txt b/Testing/Data/Compare/Dir2/dir3only_diff/file2.txt
new file mode 100644
index 00000000000..63d8dbd40c2
--- /dev/null
+++ b/Testing/Data/Compare/Dir2/dir3only_diff/file2.txt
@@ -0,0 +1 @@
+b
\ No newline at end of file
diff --git a/Testing/Data/Compare/Dir3/dir1only_diff/file1.txt b/Testing/Data/Compare/Dir3/dir1only_diff/file1.txt
new file mode 100644
index 00000000000..2e65efe2a14
--- /dev/null
+++ b/Testing/Data/Compare/Dir3/dir1only_diff/file1.txt
@@ -0,0 +1 @@
+a
\ No newline at end of file
diff --git a/Testing/Data/Compare/Dir3/dir1only_diff/file2.txt b/Testing/Data/Compare/Dir3/dir1only_diff/file2.txt
new file mode 100644
index 00000000000..63d8dbd40c2
--- /dev/null
+++ b/Testing/Data/Compare/Dir3/dir1only_diff/file2.txt
@@ -0,0 +1 @@
+b
\ No newline at end of file
diff --git a/Testing/Data/Compare/Dir3/dir2only_diff/file1.txt b/Testing/Data/Compare/Dir3/dir2only_diff/file1.txt
new file mode 100644
index 00000000000..2e65efe2a14
--- /dev/null
+++ b/Testing/Data/Compare/Dir3/dir2only_diff/file1.txt
@@ -0,0 +1 @@
+a
\ No newline at end of file
diff --git a/Testing/Data/Compare/Dir3/dir2only_diff/file2.txt b/Testing/Data/Compare/Dir3/dir2only_diff/file2.txt
new file mode 100644
index 00000000000..63d8dbd40c2
--- /dev/null
+++ b/Testing/Data/Compare/Dir3/dir2only_diff/file2.txt
@@ -0,0 +1 @@
+b
\ No newline at end of file
diff --git a/Testing/Data/Compare/Dir3/dir3only_diff/file1.txt b/Testing/Data/Compare/Dir3/dir3only_diff/file1.txt
new file mode 100644
index 00000000000..9ae9e86b7bd
--- /dev/null
+++ b/Testing/Data/Compare/Dir3/dir3only_diff/file1.txt
@@ -0,0 +1 @@
+ab
\ No newline at end of file
diff --git a/Testing/Data/Compare/Dir3/dir3only_diff/file2.txt b/Testing/Data/Compare/Dir3/dir3only_diff/file2.txt
new file mode 100644
index 00000000000..b5b5773c405
--- /dev/null
+++ b/Testing/Data/Compare/Dir3/dir3only_diff/file2.txt
@@ -0,0 +1 @@
+bb
\ No newline at end of file