Docs reorganization and update

Docs reorganization and update using the latest afb-test improvments and
try to make it clearer.

Change-Id: If022cdb46364ef250361bdcd420d45b360f10a2e
Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>
(cherry picked from commit 2f3654275e44f9719818a848da9a0b576d5a1b53)

1 files changed, 38 insertions, 0 deletions

diff --git a/docs/Reference/LuaUnitAssertionFunctions/3_StringAssertions.md b/docs/Reference/LuaUnitAssertionFunctions/3_StringAssertions.md
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+# String assertions
+
+Assertions related to string and patterns.
+
+* **_AFT.assertStrContains(str, sub[, useRe])**
+
+    Assert that a string contains the given substring or pattern.
+
+    By default, substring is searched in the string. If useRe is provided and is
+    true, sub is treated as a pattern which is searched inside the string str.
+
+* **_AFT.assertStrIContains(str, sub)**
+
+    Assert that a string contains the given substring, irrespective of the case.
+
+    Not that unlike assertStrcontains(), you can not search for a pattern.
+
+* **_AFT.assertNotStrContains(str, sub, useRe)**
+
+    Assert that a string does not contain a given substring or pattern.
+
+    By default, substring is searched in the string. If useRe is provided and is
+    true, sub is treated as a pattern which is searched inside the string str.
+
+* **_AFT.assertNotStrIContains(str, sub)**
+
+    Assert that a string does not contain the given substring, irrespective of
+    the case.
+
+    Note that unlike assertNotStrcontains(), you can not search for a pattern.
+
+* **_AFT.assertStrMatches(str, pattern[, start[, final]])**
+
+    Assert that a string matches the full pattern pattern.
+
+    If start and final are not provided or are nil, the pattern must match the
+    full string, from start to end. The functions allows to specify the expected
+    start and end position of the pattern in the string.
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