Reorganise tests

Make the titles of test pages more suggestive.
Refactor the documentation of the tests.

docs/tests/navigation/exclude/0.md

 ---
 layout: default
-title: "0"
+title: Tests for exclusion 0
 has_children: true
 nav_exclude: true
 ---
 # Tests for exclusion 0
 
 ```yaml
-title: "0"
+title: Tests for exclusion 0
 has_children: true
 nav_exclude: true
 ```

docs/tests/navigation/exclude/00.md

 ---
 layout: default
-title: "00"
-parent: "0"
+title: Tests for exclusion 00
+parent: Tests for exclusion 0
 has_children: true
 nav_exclude: true
 ---
 # Tests for exclusion 00
 
 ```yaml
-title: "00"
-parent: "0"
+title: Tests for exclusion 00
+parent: Tests for exclusion 0
 has_children: true
 nav_exclude: true
 ```

docs/tests/navigation/exclude/000.md

 ---
 layout: default
-title: "000"
-parent: "00"
-grand_parent: "0"
+title: Tests for exclusion 000
+parent: Tests for exclusion 00
+grand_parent: Tests for exclusion 0
 has_children: false
 nav_exclude: true
 ---
 # Tests for exclusion 000
 
 ```yaml
-title: "000"
-parent: "00"
-grand_parent: "0"
+title: Tests for exclusion 000
+parent: Tests for exclusion 00
+grand_parent: Tests for exclusion 0
 has_children: false
 nav_exclude: true
 ```

docs/tests/navigation/exclude/001.md

 ---
 layout: default
-title: "001"
-parent: "00"
-grand_parent: "0"
+title: Tests for exclusion 001
+parent: Tests for exclusion 00
+grand_parent: Tests for exclusion 0
 has_children: false
 nav_exclude: false
 ---
 # Tests for exclusion 001
 
 ```yaml
-title: "001"
-parent: "00"
-grand_parent: "0"
+title: Tests for exclusion 001
+parent: Tests for exclusion 00
+grand_parent: Tests for exclusion 0
 has_children: false
 nav_exclude: false
 ```

docs/tests/navigation/exclude/01.md

 ---
 layout: default
-title: "01"
-parent: "0"
+title: Tests for exclusion 01
+parent: Tests for exclusion 0
 has_children: true
 nav_exclude: false
 ---
 # Tests for exclusion 01
 
 ```yaml
-title: "01"
-parent: "0"
+title: Tests for exclusion 01
+parent: Tests for exclusion 0
 has_children: true
 nav_exclude: false
 ```

docs/tests/navigation/exclude/010.md

 ---
 layout: default
-title: "010"
-parent: "01"
-grand_parent: "0"
+title: Tests for exclusion 010
+parent: Tests for exclusion 01
+grand_parent: Tests for exclusion 0
 has_children: false
 nav_exclude: true
 ---
 # Tests for exclusion 010
 
 ```yaml
-title: "010"
-parent: "01"
-grand_parent: "0"
+title: Tests for exclusion 010
+parent: Tests for exclusion 01
+grand_parent: Tests for exclusion 0
 has_children: false
 nav_exclude: true
 ```

docs/tests/navigation/exclude/011.md

 ---
 layout: default
-title: "011"
-parent: "01"
-grand_parent: "0"
+title: Tests for exclusion 011
+parent: Tests for exclusion 01
+grand_parent: Tests for exclusion 0
 has_children: false
 nav_exclude: false
 ---
 # Tests for exclusion 011
 
 ```yaml
-title: "011"
-parent: "01"
-grand_parent: "0"
+title: Tests for exclusion 011
+parent: Tests for exclusion 01
+grand_parent: Tests for exclusion 0
 has_children: false
 nav_exclude: false
 ```

docs/tests/navigation/exclude/1.md

 ---
 layout: default
-title: "1"
+title: Tests for exclusion 1
 has_children: true
 nav_exclude: false
 ---
 # Tests for exclusion 1
 
 ```yaml
-title: "1"
+title: Tests for exclusion 1
 has_children: true
 nav_exclude: false
 ```

docs/tests/navigation/exclude/10.md

 ---
 layout: default
-title: "10"
-parent: "1"
+title: Tests for exclusion 10
+parent: Tests for exclusion 1
 has_children: true
 nav_exclude: true
 ---
 # Tests for exclusion 10
 
 ```yaml
-title: "10"
-parent: "1"
+title: Tests for exclusion 10
+parent: Tests for exclusion 1
 has_children: true
 nav_exclude: true
 ```

docs/tests/navigation/exclude/100.md

 ---
 layout: default
-title: "100"
-parent: "10"
-grand_parent: "1"
+title: Tests for exclusion 100
+parent: Tests for exclusion 10
+grand_parent: Tests for exclusion 1
 has_children: false
 nav_exclude: true
 ---
 # Tests for exclusion 100
 
 ```yaml
-title: "100"
-parent: "10"
-grand_parent: "1"
+title: Tests for exclusion 100
+parent: Tests for exclusion 10
+grand_parent: Tests for exclusion 1
 has_children: false
 nav_exclude: true
 ```

docs/tests/navigation/exclude/101.md

 ---
 layout: default
-title: "101"
-parent: "10"
-grand_parent: "1"
+title: Tests for exclusion 101
+parent: Tests for exclusion 10
+grand_parent: Tests for exclusion 1
 has_children: false
 nav_exclude: false
 ---
 # Tests for exclusion 101
 
 ```yaml
-title: "101"
-parent: "10"
-grand_parent: "1"
+title: Tests for exclusion 101
+parent: Tests for exclusion 10
+grand_parent: Tests for exclusion 1
 has_children: false
 nav_exclude: false
 ```

docs/tests/navigation/exclude/11.md

 ---
 layout: default
-title: "11"
-parent: "1"
+title: Tests for exclusion 11
+parent: Tests for exclusion 1
 has_children: true
 nav_exclude: false
 ---
 # Tests for exclusion 11
 
 ```yaml
-title: "11"
-parent: "1"
+title: Tests for exclusion 11
+parent: Tests for exclusion 1
 has_children: true
 nav_exclude: false
 ```

docs/tests/navigation/exclude/110.md

 ---
 layout: default
-title: "110"
-parent: "11"
-grand_parent: "1"
+title: Tests for exclusion 110
+parent: Tests for exclusion 11
+grand_parent: Tests for exclusion 1
 has_children: false
 nav_exclude: true
 ---
 # Tests for exclusion 110
 
 ```yaml
-title: "110"
-parent: "11"
-grand_parent: "1"
+title: Tests for exclusion 110
+parent: Tests for exclusion 11
+grand_parent: Tests for exclusion 1
 has_children: false
 nav_exclude: true
 ```

docs/tests/navigation/exclude/111.md

 ---
 layout: default
-title: "111"
-parent: "11"
-grand_parent: "1"
+title: Tests for exclusion 111
+parent: Tests for exclusion 11
+grand_parent: Tests for exclusion 1
 has_children: false
 nav_exclude: false
 ---
 # Tests for exclusion 111
 
 ```yaml
-title: "111"
-parent: "11"
-grand_parent: "1"
+title: Tests for exclusion 111
+parent: Tests for exclusion 11
+grand_parent: Tests for exclusion 1
 has_children: false
 nav_exclude: false
 ```

docs/tests/navigation/exclude/index.md

@@ -7,26 +7,30 @@ grand_parent: Tests
 
 # Tests for exclusion Exclusion
 
+Pages excluded from the main navigation can have parents and children. Navigation to and between excluded pages can be supported by the auto-generating list of child pages inserted at the bottom of each page, and by links to parents in the breadcrumbs at the top of each page.
+
+The following tests cover all combinations of excluded and included pages for the top level, child pages, and grandchild pages. The last binary digit in a page title indicates whether the page is included (1) or excluded (0); preceding digits refer to its parent and grandparent.
+
 ## Tests for exclusion Included in main navigation
 
-- ["1"](1/)
-- ["11"](11/)
-- ["111"](111/)
+- [Tests for exclusion 1](1/)
+- [Tests for exclusion 11](11/)
+- [Tests for exclusion 111](111/)
 
 ## Tests for exclusion Included only in child navigation
 
-- ["110"](110/)
-- ["10"](10/)
-- ["101"](101/)
-- ["100"](100/)
+- [Tests for exclusion 110](110/)
+- [Tests for exclusion 10](10/)
+- [Tests for exclusion 101](101/)
+- [Tests for exclusion 100](100/)
 
 ## Tests for exclusion Not included in navigation
 
-- ["0"](0/)
-- ["01"](01/)
-- ["011"](011/)
-- ["010"](010/)
-- ["00"](00/)
-- ["001"](001/)
-- ["000"](000/)
+- [Tests for exclusion 0](0/)
+- [Tests for exclusion 01](01/)
+- [Tests for exclusion 011](011/)
+- [Tests for exclusion 010](010/)
+- [Tests for exclusion 00](00/)
+- [Tests for exclusion 001](001/)
+- [Tests for exclusion 000](000/)
 - ["Untitled"](untitled/)

docs/tests/navigation/grandparent/a.md

 ---
 layout: default
-title: A
+title: Tests for disambiguation A
 has_children: true
 ---
 
@@ -9,6 +9,6 @@ has_children: true
 A top-level page
 
 ```yaml
-title: A
+title: Tests for disambiguation A
 has_children: true
 ```

docs/tests/navigation/grandparent/b.md

 ---
 layout: default
-title: B
+title: Tests for disambiguation B
 has_children: true
 ---
 
@@ -9,6 +9,6 @@ has_children: true
 A top-level page
 
 ```yaml
-title: B
+title: Tests for disambiguation B
 has_children: true
 ```

docs/tests/navigation/grandparent/ca.md

 ---
 layout: default
-title: C
-parent: A
+title: Tests for disambiguation C
+parent: Tests for disambiguation A
 has_children: true
 ---
 
@@ -10,7 +10,7 @@ has_children: true
 A child of page A, and parent of page D
 
 ```yaml
-title: C
-parent: A
+title: Tests for disambiguation C
+parent: Tests for disambiguation A
 has_children: true
 ```

docs/tests/navigation/grandparent/cb.md

 ---
 layout: default
-title: C
-parent: B
+title: Tests for disambiguation C
+parent: Tests for disambiguation B
 has_children: true
 ---
 
@@ -10,7 +10,7 @@ has_children: true
 A child of page B, and parent of page D
 
 ```yaml
-title: C
-parent: B
+title: Tests for disambiguation C
+parent: Tests for disambiguation B
 has_children: true
 ```

docs/tests/navigation/grandparent/dca.md

 ---
 layout: default
-title: D
-parent: C
-grand_parent: A
+title: Tests for disambiguation D
+parent: Tests for disambiguation C
+grand_parent: Tests for disambiguation A
 ---
 
 # D
@@ -10,7 +10,7 @@ grand_parent: A
 A grandchild of page A
 
 ```yaml
-title: D
-parent: C
-grand_parent: A
+title: Tests for disambiguation D
+parent: Tests for disambiguation C
+grand_parent: Tests for disambiguation A
 ```