diff --git a/meta/lib/oeqa/selftest/sstatetests.py b/meta/lib/oeqa/selftest/sstatetests.py
new file mode 100644
index 0000000..6906b21
--- /dev/null
+++ b/meta/lib/oeqa/selftest/sstatetests.py
@@ -0,0 +1,308 @@
+import datetime
+import unittest
+import os
+import re
+import shutil
+
+import oeqa.utils.ftools as ftools
+from oeqa.selftest.base import oeSelfTest
+from oeqa.utils.commands import runCmd, bitbake, get_bb_var, get_test_layer
+from oeqa.selftest.sstate import SStateBase
+from oeqa.utils.decorators import testcase
+
+class SStateTests(SStateBase):
+
+    # Test sstate files creation and their location
+    def run_test_sstate_creation(self, targets, distro_specific=True, distro_nonspecific=True, temp_sstate_location=True, should_pass=True):
+        self.config_sstate(temp_sstate_location)
+
+        if  self.temp_sstate_location:
+            bitbake(['-cclean'] + targets)
+        else:
+            bitbake(['-ccleansstate'] + targets)
+
+        bitbake(targets)
+        file_tracker = self.search_sstate('|'.join(map(str, targets)), distro_specific, distro_nonspecific)
+        if should_pass:
+            self.assertTrue(file_tracker , msg="Could not find sstate files for: %s" % ', '.join(map(str, targets)))
+        else:
+            self.assertTrue(not file_tracker , msg="Found sstate files in the wrong place for: %s" % ', '.join(map(str, targets)))
+
+    @testcase(975)
+    def test_sstate_creation_distro_specific_pass(self):
+        targetarch = get_bb_var('TUNE_ARCH')
+        self.run_test_sstate_creation(['binutils-cross-'+ targetarch, 'binutils-native'], distro_specific=True, distro_nonspecific=False, temp_sstate_location=True)
+
+    @testcase(975)
+    def test_sstate_creation_distro_specific_fail(self):
+        targetarch = get_bb_var('TUNE_ARCH')
+        self.run_test_sstate_creation(['binutils-cross-'+ targetarch, 'binutils-native'], distro_specific=False, distro_nonspecific=True, temp_sstate_location=True, should_pass=False)
+
+    @testcase(976)
+    def test_sstate_creation_distro_nonspecific_pass(self):
+        self.run_test_sstate_creation(['glibc-initial'], distro_specific=False, distro_nonspecific=True, temp_sstate_location=True)
+
+    @testcase(976)
+    def test_sstate_creation_distro_nonspecific_fail(self):
+        self.run_test_sstate_creation(['glibc-initial'], distro_specific=True, distro_nonspecific=False, temp_sstate_location=True, should_pass=False)
+
+
+    # Test the sstate files deletion part of the do_cleansstate task
+    def run_test_cleansstate_task(self, targets, distro_specific=True, distro_nonspecific=True, temp_sstate_location=True):
+        self.config_sstate(temp_sstate_location)
+
+        bitbake(['-ccleansstate'] + targets)
+
+        bitbake(targets)
+        tgz_created = self.search_sstate('|'.join(map(str, [s + '.*?\.tgz$' for s in targets])), distro_specific, distro_nonspecific)
+        self.assertTrue(tgz_created, msg="Could not find sstate .tgz files for: %s" % ', '.join(map(str, targets)))
+
+        siginfo_created = self.search_sstate('|'.join(map(str, [s + '.*?\.siginfo$' for s in targets])), distro_specific, distro_nonspecific)
+        self.assertTrue(siginfo_created, msg="Could not find sstate .siginfo files for: %s" % ', '.join(map(str, targets)))
+
+        bitbake(['-ccleansstate'] + targets)
+        tgz_removed = self.search_sstate('|'.join(map(str, [s + '.*?\.tgz$' for s in targets])), distro_specific, distro_nonspecific)
+        self.assertTrue(not tgz_removed, msg="do_cleansstate didn't remove .tgz sstate files for: %s" % ', '.join(map(str, targets)))
+
+    @testcase(977)
+    def test_cleansstate_task_distro_specific_nonspecific(self):
+        targetarch = get_bb_var('TUNE_ARCH')
+        self.run_test_cleansstate_task(['binutils-cross-' + targetarch, 'binutils-native', 'glibc-initial'], distro_specific=True, distro_nonspecific=True, temp_sstate_location=True)
+
+    @testcase(977)
+    def test_cleansstate_task_distro_nonspecific(self):
+        self.run_test_cleansstate_task(['glibc-initial'], distro_specific=False, distro_nonspecific=True, temp_sstate_location=True)
+
+    @testcase(977)
+    def test_cleansstate_task_distro_specific(self):
+        targetarch = get_bb_var('TUNE_ARCH')
+        self.run_test_cleansstate_task(['binutils-cross-'+ targetarch, 'binutils-native', 'glibc-initial'], distro_specific=True, distro_nonspecific=False, temp_sstate_location=True)
+
+
+    # Test rebuilding of distro-specific sstate files
+    def run_test_rebuild_distro_specific_sstate(self, targets, temp_sstate_location=True):
+        self.config_sstate(temp_sstate_location)
+
+        bitbake(['-ccleansstate'] + targets)
+
+        bitbake(targets)
+        self.assertTrue(self.search_sstate('|'.join(map(str, [s + '.*?\.tgz$' for s in targets])), distro_specific=False, distro_nonspecific=True) == [], msg="Found distro non-specific sstate for: %s" % ', '.join(map(str, targets)))
+        file_tracker_1 = self.search_sstate('|'.join(map(str, [s + '.*?\.tgz$' for s in targets])), distro_specific=True, distro_nonspecific=False)
+        self.assertTrue(len(file_tracker_1) >= len(targets), msg = "Not all sstate files ware created for: %s" % ', '.join(map(str, targets)))
+
+        self.track_for_cleanup(self.distro_specific_sstate + "_old")
+        shutil.copytree(self.distro_specific_sstate, self.distro_specific_sstate + "_old")
+        shutil.rmtree(self.distro_specific_sstate)
+
+        bitbake(['-cclean'] + targets)
+        bitbake(targets)
+        file_tracker_2 = self.search_sstate('|'.join(map(str, [s + '.*?\.tgz$' for s in targets])), distro_specific=True, distro_nonspecific=False)
+        self.assertTrue(len(file_tracker_2) >= len(targets), msg = "Not all sstate files ware created for: %s" % ', '.join(map(str, targets)))
+
+        not_recreated = [x for x in file_tracker_1 if x not in file_tracker_2]
+        self.assertTrue(not_recreated == [], msg="The following sstate files ware not recreated: %s" % ', '.join(map(str, not_recreated)))
+
+        created_once = [x for x in file_tracker_2 if x not in file_tracker_1]
+        self.assertTrue(created_once == [], msg="The following sstate files ware created only in the second run: %s" % ', '.join(map(str, created_once)))
+
+    @testcase(175)
+    def test_rebuild_distro_specific_sstate_cross_native_targets(self):
+        targetarch = get_bb_var('TUNE_ARCH')
+        self.run_test_rebuild_distro_specific_sstate(['binutils-cross-' + targetarch, 'binutils-native'], temp_sstate_location=True)
+
+    @testcase(175)
+    def test_rebuild_distro_specific_sstate_cross_target(self):
+        targetarch = get_bb_var('TUNE_ARCH')
+        self.run_test_rebuild_distro_specific_sstate(['binutils-cross-' + targetarch], temp_sstate_location=True)
+
+    @testcase(175)
+    def test_rebuild_distro_specific_sstate_native_target(self):
+        self.run_test_rebuild_distro_specific_sstate(['binutils-native'], temp_sstate_location=True)
+
+
+    # Test the sstate-cache-management script. Each element in the global_config list is used with the corresponding element in the target_config list
+    # global_config elements are expected to not generate any sstate files that would be removed by sstate-cache-management.sh (such as changing the value of MACHINE)
+    def run_test_sstate_cache_management_script(self, target, global_config=[''], target_config=[''], ignore_patterns=[]):
+        self.assertTrue(global_config)
+        self.assertTrue(target_config)
+        self.assertTrue(len(global_config) == len(target_config), msg='Lists global_config and target_config should have the same number of elements')
+        self.config_sstate(temp_sstate_location=True, add_local_mirrors=[self.sstate_path])
+
+        # If buildhistory is enabled, we need to disable version-going-backwards QA checks for this test. It may report errors otherwise.
+        if ('buildhistory' in get_bb_var('USER_CLASSES')) or ('buildhistory' in get_bb_var('INHERIT')):
+            remove_errors_config = 'ERROR_QA_remove = "version-going-backwards"'
+            self.append_config(remove_errors_config)
+
+        # For not this only checks if random sstate tasks are handled correctly as a group.
+        # In the future we should add control over what tasks we check for.
+
+        sstate_archs_list = []
+        expected_remaining_sstate = []
+        for idx in range(len(target_config)):
+            self.append_config(global_config[idx])
+            self.append_recipeinc(target, target_config[idx])
+            sstate_arch = get_bb_var('SSTATE_PKGARCH', target)
+            if not sstate_arch in sstate_archs_list:
+                sstate_archs_list.append(sstate_arch)
+            if target_config[idx] == target_config[-1]:
+                target_sstate_before_build = self.search_sstate(target + '.*?\.tgz$')
+            bitbake("-cclean %s" % target)
+            result = bitbake(target, ignore_status=True)
+            if target_config[idx] == target_config[-1]:
+                target_sstate_after_build = self.search_sstate(target + '.*?\.tgz$')
+                expected_remaining_sstate += [x for x in target_sstate_after_build if x not in target_sstate_before_build if not any(pattern in x for pattern in ignore_patterns)]
+            self.remove_config(global_config[idx])
+            self.remove_recipeinc(target, target_config[idx])
+            self.assertEqual(result.status, 0, msg = "build of %s failed with %s" % (target, result.output))
+
+        runCmd("sstate-cache-management.sh -y --cache-dir=%s --remove-duplicated --extra-archs=%s" % (self.sstate_path, ','.join(map(str, sstate_archs_list))))
+        actual_remaining_sstate = [x for x in self.search_sstate(target + '.*?\.tgz$') if not any(pattern in x for pattern in ignore_patterns)]
+
+        actual_not_expected = [x for x in actual_remaining_sstate if x not in expected_remaining_sstate]
+        self.assertFalse(actual_not_expected, msg="Files should have been removed but ware not: %s" % ', '.join(map(str, actual_not_expected)))
+        expected_not_actual = [x for x in expected_remaining_sstate if x not in actual_remaining_sstate]
+        self.assertFalse(expected_not_actual, msg="Extra files ware removed: %s" ', '.join(map(str, expected_not_actual)))
+
+    @testcase(973)
+    def test_sstate_cache_management_script_using_pr_1(self):
+        global_config = []
+        target_config = []
+        global_config.append('')
+        target_config.append('PR = "0"')
+        self.run_test_sstate_cache_management_script('m4', global_config,  target_config, ignore_patterns=['populate_lic'])
+
+    @testcase(978)
+    def test_sstate_cache_management_script_using_pr_2(self):
+        global_config = []
+        target_config = []
+        global_config.append('')
+        target_config.append('PR = "0"')
+        global_config.append('')
+        target_config.append('PR = "1"')
+        self.run_test_sstate_cache_management_script('m4', global_config,  target_config, ignore_patterns=['populate_lic'])
+
+    @testcase(979)
+    def test_sstate_cache_management_script_using_pr_3(self):
+        global_config = []
+        target_config = []
+        global_config.append('MACHINE = "qemux86-64"')
+        target_config.append('PR = "0"')
+        global_config.append(global_config[0])
+        target_config.append('PR = "1"')
+        global_config.append('MACHINE = "qemux86"')
+        target_config.append('PR = "1"')
+        self.run_test_sstate_cache_management_script('m4', global_config,  target_config, ignore_patterns=['populate_lic'])
+
+    @testcase(974)
+    def test_sstate_cache_management_script_using_machine(self):
+        global_config = []
+        target_config = []
+        global_config.append('MACHINE = "qemux86-64"')
+        target_config.append('')
+        global_config.append('MACHINE = "qemux86"')
+        target_config.append('')
+        self.run_test_sstate_cache_management_script('m4', global_config,  target_config, ignore_patterns=['populate_lic'])
+
+    @testcase(1270)
+    def test_sstate_32_64_same_hash(self):
+        """
+        The sstate checksums for both native and target should not vary whether
+        they're built on a 32 or 64 bit system. Rather than requiring two different 
+        build machines and running a builds, override the variables calling uname()
+        manually and check using bitbake -S.
+        """
+
+        topdir = get_bb_var('TOPDIR')
+        targetvendor = get_bb_var('TARGET_VENDOR')
+        self.write_config("""
+TMPDIR = \"${TOPDIR}/tmp-sstatesamehash\"
+BUILD_ARCH = \"x86_64\"
+BUILD_OS = \"linux\"
+""")
+        self.track_for_cleanup(topdir + "/tmp-sstatesamehash")
+        bitbake("core-image-sato -S none")
+        self.write_config("""
+TMPDIR = \"${TOPDIR}/tmp-sstatesamehash2\"
+BUILD_ARCH = \"i686\"
+BUILD_OS = \"linux\"
+""")
+        self.track_for_cleanup(topdir + "/tmp-sstatesamehash2")
+        bitbake("core-image-sato -S none")
+
+        def get_files(d):
+            f = []
+            for root, dirs, files in os.walk(d):
+                f.extend(os.path.join(root, name) for name in files)
+            return f
+        files1 = get_files(topdir + "/tmp-sstatesamehash/stamps/")
+        files2 = get_files(topdir + "/tmp-sstatesamehash2/stamps/")
+        files2 = [x.replace("tmp-sstatesamehash2", "tmp-sstatesamehash").replace("i686-linux", "x86_64-linux").replace("i686" + targetvendor + "-linux", "x86_64" + targetvendor + "-linux", ) for x in files2]
+        self.assertItemsEqual(files1, files2)
+
+
+    @testcase(1271)
+    def test_sstate_nativelsbstring_same_hash(self):
+        """
+        The sstate checksums should be independent of whichever NATIVELSBSTRING is
+        detected. Rather than requiring two different build machines and running 
+        builds, override the variables manually and check using bitbake -S.
+        """
+
+        topdir = get_bb_var('TOPDIR')
+        self.write_config("""
+TMPDIR = \"${TOPDIR}/tmp-sstatesamehash\"
+NATIVELSBSTRING = \"DistroA\"
+""")
+        self.track_for_cleanup(topdir + "/tmp-sstatesamehash")
+        bitbake("core-image-sato -S none")
+        self.write_config("""
+TMPDIR = \"${TOPDIR}/tmp-sstatesamehash2\"
+NATIVELSBSTRING = \"DistroB\"
+""")
+        self.track_for_cleanup(topdir + "/tmp-sstatesamehash2")
+        bitbake("core-image-sato -S none")
+
+        def get_files(d):
+            f = []
+            for root, dirs, files in os.walk(d):
+                f.extend(os.path.join(root, name) for name in files)
+            return f
+        files1 = get_files(topdir + "/tmp-sstatesamehash/stamps/")
+        files2 = get_files(topdir + "/tmp-sstatesamehash2/stamps/")
+        files2 = [x.replace("tmp-sstatesamehash2", "tmp-sstatesamehash") for x in files2]
+        self.assertItemsEqual(files1, files2)
+
+    def test_sstate_allarch_samesigs(self):
+        """
+        The sstate checksums off allarch packages should be independent of whichever 
+        MACHINE is set. Check this using bitbake -S.
+        """
+
+        topdir = get_bb_var('TOPDIR')
+        targetos = get_bb_var('TARGET_OS')
+        targetvendor = get_bb_var('TARGET_VENDOR')
+        self.write_config("""
+TMPDIR = \"${TOPDIR}/tmp-sstatesamehash\"
+MACHINE = \"qemux86\"
+""")
+        self.track_for_cleanup(topdir + "/tmp-sstatesamehash")
+        bitbake("world -S none")
+        self.write_config("""
+TMPDIR = \"${TOPDIR}/tmp-sstatesamehash2\"
+MACHINE = \"qemuarm\"
+""")
+        self.track_for_cleanup(topdir + "/tmp-sstatesamehash2")
+        bitbake("world -S none")
+
+        def get_files(d):
+            f = []
+            for root, dirs, files in os.walk(d):
+                for name in files:
+                    if "do_build" not in name:
+                        f.append(os.path.join(root, name))
+            return f
+        files1 = get_files(topdir + "/tmp-sstatesamehash/stamps/all" + targetvendor + "-" + targetos)
+        files2 = get_files(topdir + "/tmp-sstatesamehash2/stamps/all" + targetvendor + "-" + targetos)
+        files2 = [x.replace("tmp-sstatesamehash2", "tmp-sstatesamehash") for x in files2]
+        self.maxDiff = None
+        self.assertItemsEqual(files1, files2)