[RFC,v1,4/6] dts: merge DTS framework/stats_reporter.py to DPDK

diff --git a/dts/framework/stats_reporter.py b/dts/framework/stats_reporter.py
new file mode 100644
index 0000000000..80ac942c5b
--- /dev/null
+++ b/dts/framework/stats_reporter.py
@@ -0,0 +1,95 @@ 
+# BSD LICENSE
+#
+# Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+#   * Redistributions of source code must retain the above copyright
+#     notice, this list of conditions and the following disclaimer.
+#   * Redistributions in binary form must reproduce the above copyright
+#     notice, this list of conditions and the following disclaimer in
+#     the documentation and/or other materials provided with the
+#     distribution.
+#   * Neither the name of Intel Corporation nor the names of its
+#     contributors may be used to endorse or promote products derived
+#     from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+"""
+Simple text file statistics generator
+"""
+
+
+class StatsReporter(object):
+
+    """
+    Generates a small statistics file containing the number of passing,
+    failing and blocked tests. It makes use of a Result instance as input.
+    """
+
+    def __init__(self, filename):
+        self.filename = filename
+
+    def __add_stat(self, test_result):
+        if test_result is not None:
+            if test_result[0] == "PASSED":
+                self.passed += 1
+            if test_result[0] == "FAILED":
+                self.failed += 1
+            if test_result[0] == "BLOCKED":
+                self.blocked += 1
+            self.total += 1
+
+    def __count_stats(self):
+        for dut in self.result.all_duts():
+            for target in self.result.all_targets(dut):
+                for suite in self.result.all_test_suites(dut, target):
+                    for case in self.result.all_test_cases(dut, target, suite):
+                        test_result = self.result.result_for(dut, target, suite, case)
+                        if len(test_result):
+                            self.__add_stat(test_result)
+
+    def __write_stats(self):
+        duts = self.result.all_duts()
+        if len(duts) == 1:
+            self.stats_file.write(
+                "dpdk_version = {}\n".format(self.result.current_dpdk_version(duts[0]))
+            )
+        else:
+            for dut in duts():
+                dpdk_version = self.result.current_dpdk_version(dut)
+                self.stats_file.write(
+                    "{}.dpdk_version = {}\n".format(dut, dpdk_version)
+                )
+        self.__count_stats()
+        self.stats_file.write("Passed     = %d\n" % self.passed)
+        self.stats_file.write("Failed     = %d\n" % self.failed)
+        self.stats_file.write("Blocked    = %d\n" % self.blocked)
+        rate = 0
+        if self.total > 0:
+            rate = self.passed * 100.0 / self.total
+        self.stats_file.write("Pass rate  = %.1f\n" % rate)
+
+    def save(self, result):
+        self.passed = 0
+        self.failed = 0
+        self.blocked = 0
+        self.total = 0
+        self.stats_file = open(self.filename, "w+")
+        self.result = result
+        self.__write_stats()
+        self.stats_file.close()