diff --git a/test_data/cluster/case_48_long/DCLU b/test_data/cluster/case_48_long/DCLU
new file mode 100644
index 0000000000000000000000000000000000000000..7b63fd42a24fa5a468fdee8d44f7bd9914d2efbf
--- /dev/null
+++ b/test_data/cluster/case_48_long/DCLU
@@ -0,0 +1,53 @@
+  48   10   10  5760   1  149  300    0    0
+   0.0000000e+00   1.0000000e-08   0.0000000e+00
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+   6.9505974e-09   7.0387879e-09   7.0000000e-08
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+  -6.9505974e-09  -7.0387879e-09   7.0000000e-08
+ 0.00D01  0.00D00  0.00D01  180.00D00  0.00D01  0.00D01
+ 0.00D01  0.00D00  0.00D01  0.00D00  0.00D01  0.00D01
+ 1
+0
diff --git a/test_data/cluster/case_48_long/DEDFB b/test_data/cluster/case_48_long/DEDFB
new file mode 100644
index 0000000000000000000000000000000000000000..ac4071a84011eead571b865749f22b82d0393435
--- /dev/null
+++ b/test_data/cluster/case_48_long/DEDFB
@@ -0,0 +1,370 @@
+ 48   0
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+ ( 1.1841179226025922 , 0.028134356112973602 )
+ ( 1.1792351783859978 , 0.0283510332135992 )
+ 0
\ No newline at end of file
diff --git a/test_data/cluster/case_48_short/DCLU b/test_data/cluster/case_48_short/DCLU
new file mode 100644
index 0000000000000000000000000000000000000000..7b63fd42a24fa5a468fdee8d44f7bd9914d2efbf
--- /dev/null
+++ b/test_data/cluster/case_48_short/DCLU
@@ -0,0 +1,53 @@
+  48   10   10  5760   1  149  300    0    0
+   0.0000000e+00   1.0000000e-08   0.0000000e+00
+   0.0000000e+00  -1.0000000e-08   0.0000000e+00
+   8.5355339e-09   5.0000000e-09   0.0000000e+00
+   8.5355339e-09  -5.0000000e-09   0.0000000e+00
+  -8.5355339e-09   5.0000000e-09   0.0000000e+00
+  -8.5355339e-09  -5.0000000e-09   0.0000000e+00
+   0.0000000e+00   1.0000000e-08   1.0000000e-08
+   0.0000000e+00  -1.0000000e-08   1.0000000e-08
+   8.5355339e-09   5.0000000e-09   1.0000000e-08
+   8.5355339e-09  -5.0000000e-09   1.0000000e-08
+  -8.5355339e-09   5.0000000e-09   1.0000000e-08
+  -8.5355339e-09  -5.0000000e-09   1.0000000e-08
+   0.0000000e+00   1.0000000e-08   2.0000000e-08
+   0.0000000e+00  -1.0000000e-08   2.0000000e-08
+   8.5355339e-09   5.0000000e-09   2.0000000e-08
+   8.5355339e-09  -5.0000000e-09   2.0000000e-08
+  -8.5355339e-09   5.0000000e-09   2.0000000e-08
+  -8.5355339e-09  -5.0000000e-09   2.0000000e-08
+   0.0000000e+00   1.0000000e-08   3.0000000e-08
+   0.0000000e+00  -1.0000000e-08   3.0000000e-08
+   8.5355339e-09   5.0000000e-09   3.0000000e-08
+   8.5355339e-09  -5.0000000e-09   3.0000000e-08
+  -8.5355339e-09   5.0000000e-09   3.0000000e-08
+  -8.5355339e-09  -5.0000000e-09   3.0000000e-08
+  -6.4278761e-09   7.6604444e-09   4.0000000e-08
+   6.4278761e-09  -7.6604444e-09   4.0000000e-08
+   3.3246603e-09   9.3167577e-09   4.0000000e-08
+   9.7525364e-09   1.6563132e-09   4.0000000e-08
+  -9.7525364e-09  -1.6563132e-09   4.0000000e-08
+  -3.3246603e-09  -9.3167577e-09   4.0000000e-08
+  -8.6602540e-09   5.0000000e-09   5.0000000e-08
+   8.6602540e-09  -5.0000000e-09   5.0000000e-08
+  -6.2360066e-11   9.8919892e-09   5.0000000e-08
+   8.5978940e-09   4.8919892e-09   5.0000000e-08
+  -8.5978940e-09  -4.8919892e-09   5.0000000e-08
+   6.2360066e-11  -9.8919892e-09   5.0000000e-08
+  -5.0000000e-09   8.6602540e-09   6.0000000e-08
+   5.0000000e-09  -8.6602540e-09   6.0000000e-08
+   4.8919892e-09   8.5978940e-09   6.0000000e-08
+   9.8919892e-09  -6.2360066e-11   6.0000000e-08
+  -9.8919892e-09   6.2360066e-11   6.0000000e-08
+  -4.8919892e-09  -8.5978940e-09   6.0000000e-08
+  -2.5881905e-09   9.6592583e-09   7.0000000e-08
+   2.5881905e-09  -9.6592583e-09   7.0000000e-08
+   6.9505974e-09   7.0387879e-09   7.0000000e-08
+   9.5387879e-09  -2.6204704e-09   7.0000000e-08
+  -9.5387879e-09   2.6204704e-09   7.0000000e-08
+  -6.9505974e-09  -7.0387879e-09   7.0000000e-08
+ 0.00D01  0.00D00  0.00D01  180.00D00  0.00D01  0.00D01
+ 0.00D01  0.00D00  0.00D01  0.00D00  0.00D01  0.00D01
+ 1
+0
diff --git a/test_data/cluster/case_48_short/DEDFB b/test_data/cluster/case_48_short/DEDFB
new file mode 100644
index 0000000000000000000000000000000000000000..1484cd7f32aedb538155051fa3be1e7eaff535e5
--- /dev/null
+++ b/test_data/cluster/case_48_short/DEDFB
@@ -0,0 +1,12 @@
+ 48   0
+ 1.000D00  3.0000000D08    1.000000D00   0  2  0  3
+4.2000000e-07
+4.2100000e-07
+    1    1    1    1    1    1    1    1    1    1    1    1    1    1    1    1
+    1    1    1    1    1    1    1    1    1    1    1    1    1    1    1    1
+    1    1    1    1    1    1    1    1    1    1    1    1    1    1    1    1
+	1  5.00d-9
+ 1.000000D00
+  ( 0.6965478043675424 , 0.012177869466280656 )
+ ( 0.6910987175052832 , 0.012554064506388863 )
+ 0
\ No newline at end of file