diff --git a/doc/example/report.md b/doc/example/report.md
index 567ea3a..aea0bbc 100644
--- a/doc/example/report.md
+++ b/doc/example/report.md
@@ -1,6 +1,8 @@
 ![memory map diagram](report.png)
 |name|origin|size|remaining|collisions
 |:-|:-|:-|:-|:-|
-|<span style='color:midnightblue'>dtb</span>|0x90|0x100|0x258|{}|
-|<span style='color:aqua'>kernel</span>|0x10|0x60|0x0|{}|
-|<span style='color:lime'>rootfs</span>|0x70|0x10|0x10|{'kernel': '0x70'}|
+|<span style='color:mediumpurple'>kernel</span>|0x10|0x50|-0x10|{'rootfs': '0x50'}|
+|<span style='color:skyblue'>uboot</span>|0xD0|0x50|-0x10|{'uboot-scr': '0x110'}|
+|<span style='color:midnightblue'>rootfs</span>|0x50|0x30|0x10|{'kernel': '0x50'}|
+|<span style='color:dimgray'>dtb</span>|0x90|0x30|0x10|{}|
+|<span style='color:dodgerblue'>uboot-scr</span>|0x110|0x30|0x2a8|{'uboot': '0x110'}|
diff --git a/doc/example/report.png b/doc/example/report.png
index b3cb9be..19d6e23 100644
Binary files a/doc/example/report.png and b/doc/example/report.png differ
diff --git a/tests/test_docs.py b/tests/test_docs.py
index 8c790bf..0ac279c 100644
--- a/tests/test_docs.py
+++ b/tests/test_docs.py
@@ -4,20 +4,46 @@
 
 
 def test_generate_doc_example():
-    ''' should create custom report dir/files '''
+    """  """
     with unittest.mock.patch('sys.argv',
                              ['mmap_digram.diagram',
                               'kernel',
                               '0x10',
-                              '0x60',
+                              '0x50',
                               'rootfs',
-                              '0x70',
-                              '0x10',
+                              '0x50',
+                              '0x30',
                               'dtb',
                               '0x90',
-                              '0x100',
+                              '0x30',
+                              'uboot',
+                              '0xD0',
+                              '0x50',
+                              'uboot-scr',
+                              '0x110',
+                              '0x30',
                               "-o",
-                              "doc/example/report.md"]):
-        mmdiagram.generator.Diagram()
-        assert pathlib.Path("doc/example/report.md").exists()
-        assert pathlib.Path("doc/example/report.png").exists()
+                              "doc/example/report.md"],
+                             mmdiagram.generator.height, 1000):
+        d = mmdiagram.generator.Diagram()
+        for region in d._region_list:
+            if region.name == "kernel":
+                assert region._origin == "0x10"
+                assert region._size == "0x50"
+                assert region.remain == "-0x10"
+            if region.name == "rootfs":
+                assert region._origin == "0x50"
+                assert region._size == "0x30"
+                assert region.remain == "0x10"
+            if region.name == "dtb":
+                assert region._origin == "0x90"
+                assert region._size == "0x30"
+                assert region.remain == "0x10"
+            if region.name == "uboot":
+                assert region._origin == "0xD0"
+                assert region._size == "0x50"
+                assert region.remain == "-0x10"
+            if region.name == "uboot-scr":
+                assert region._origin == "0x110"
+                assert region._size == "0x30"
+                assert region.remain == "0x2a8"