From 4e5996ceeab7c134a16eb39e7f03da84087bd3c3 Mon Sep 17 00:00:00 2001
From: Niklas Hauser <niklas.hauser@arm.com>
Date: Fri, 4 Dec 2015 17:38:40 +0000
Subject: [PATCH] Allow starting a specification at a different case.

This can be used to skip failing test cases with external support from
a test runner like greentea.
It would reset the device and execute the specification again, but start
at the next test case.
---
 "frameworks\\utest/source/harness.cpp" | 11 ++++++++++-
 "frameworks\\utest/utest/harness.h"    |  6 +++++-
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git "a/frameworks\\utest/source/harness.cpp" "b/frameworks\\utest/source/harness.cpp"
index 094fba640b..fe6dd62c63 100644
--- "a/frameworks\\utest/source/harness.cpp"
+++ "b/frameworks\\utest/source/harness.cpp"
@@ -52,9 +52,18 @@ static void die() {
 }
 
 void Harness::run(const Specification specification)
+{
+    run(specification, 0);
+}
+
+void Harness::run(const Specification specification, std::size_t start_case)
 {
     mbed::util::CriticalSectionLock lock;
 
+    // ignore any invalid start index
+    if (start_case >= specification.length)
+        return;
+
     test_cases = specification.cases;
     test_length = specification.length;
     defaults = specification.defaults;
@@ -68,7 +77,7 @@ void Harness::run(const Specification specification)
     case_passed = 0;
     case_failed = 0;
     case_failed_before = 0;
-    case_current = test_cases;
+    case_current = &test_cases[start_case];
 
     if (handlers.test_setup && (handlers.test_setup(test_length) != STATUS_CONTINUE)) {
         if (handlers.test_teardown) handlers.test_teardown(0, 0, FAILURE_SETUP);
diff --git "a/frameworks\\utest/utest/harness.h" "b/frameworks\\utest/utest/harness.h"
index bb6769ba8e..f2c228b6ff 100644
--- "a/frameworks\\utest/utest/harness.h"
+++ "b/frameworks\\utest/utest/harness.h"
@@ -43,9 +43,13 @@ namespace v1 {
     class Harness
     {
     public:
-        /// Starts running a test specification
+        /// Runs a test specification
         static void run(const Specification specification);
 
+        /// Runs a test specification starting at the specified case index
+        /// @warning if the start index is out of bounds, the call has no effect!
+        static void run(const Specification specification, size_t start_case);
+
         /// @returns `true` if a test specification is being executed, `false` otherwise
         static bool is_busy();