oeqa/selftest: Automate manual pybootchart tests

Automate the current manual pybootchart tests. This includes a check
for the cairo dependency, skipping the test if appropriate.

Based on original patch from Armin Kuster <akuster808@gmail.com>

(From OE-Core rev: ff5370a381a4996b7da56aaaa7055f7a1786c823)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/lib/oeqa/manual/oe-core.json

@@ -1,30 +1,4 @@
 [
-  {
-    "test": {
-      "@alias": "oe-core.scripts.Use_scripts/pybootchartgui/pybootchartgui.py_to_generate_build_profiles",
-      "author": [
-        {
-          "email": "alexandru.c.georgescu@intel.com",
-          "name": "alexandru.c.georgescu@intel.com"
-        }
-      ],
-      "execution": {
-        "1": {
-          "action": "Run a build for a recipe (e.g. core-image-minimal)",
-          "expected_results": ""
-        },
-        "2": {
-          "action": "Run the profiling script, ../scripts/pybootchartgui/pybootchartgui.py  tmp/buildstats/    \n\n",
-          "expected_results": ""
-        },
-        "3": {
-          "action": "Verify the results ",
-          "expected_results": "The scripts generates svg files with the profiling results . "
-        }
-      },
-      "summary": "Use_scripts/pybootchartgui/pybootchartgui.py_to_generate_build_profiles"
-    }
-  },
   {
     "test": {
       "@alias": "oe-core.scripts.Crosstap_script_check",

meta/lib/oeqa/selftest/cases/oescripts.py

@@ -2,6 +2,7 @@
 # SPDX-License-Identifier: MIT
 #
 
+import os
 from oeqa.selftest.case import OESelftestTestCase
 from oeqa.selftest.cases.buildhistory import BuildhistoryBase
 from oeqa.utils.commands import Command, runCmd, bitbake, get_bb_var, get_test_layer
@@ -28,3 +29,36 @@ class BuildhistoryDiffTests(BuildhistoryBase):
                 self.fail('Unexpected line:\n%s\nExpected line endings:\n  %s' % (line, '\n  '.join(expected_endlines)))
         if expected_endlines:
             self.fail('Missing expected line endings:\n  %s' % '\n  '.join(expected_endlines))
+
+class OEScriptTests(OESelftestTestCase):
+
+    @classmethod
+    def setUpClass(cls):
+        super(OEScriptTests, cls).setUpClass()
+        try:
+            import cairo
+        except ImportError:
+            cls.skipTest('Python module cairo is not present')
+        bitbake("core-image-minimal -c rootfs -f")
+        cls.tmpdir = get_bb_var('TMPDIR')
+        cls.buildstats = cls.tmpdir + "/buildstats/" + sorted(os.listdir(cls.tmpdir + "/buildstats"))[-1]
+
+    scripts_dir = os.path.join(get_bb_var('COREBASE'), 'scripts')
+
+class OEPybootchartguyTests(OEScriptTests):
+
+    def test_pybootchartguy_help(self):
+        runCmd('%s/pybootchartgui/pybootchartgui.py  --help' % self.scripts_dir)
+
+    def test_pybootchartguy_to_generate_build_png_output(self):
+        runCmd('%s/pybootchartgui/pybootchartgui.py  %s -o %s/charts -f png' % (self.scripts_dir, self.buildstats, self.tmpdir))
+        self.assertTrue(os.path.exists(self.tmpdir + "/charts.png"))
+
+    def test_pybootchartguy_to_generate_build_svg_output(self):
+        runCmd('%s/pybootchartgui/pybootchartgui.py  %s -o %s/charts -f svg' % (self.scripts_dir, self.buildstats, self.tmpdir))
+        self.assertTrue(os.path.exists(self.tmpdir + "/charts.svg"))
+
+    def test_pybootchartguy_to_generate_build_pdf_output(self):
+        runCmd('%s/pybootchartgui/pybootchartgui.py  %s -o %s/charts -f pdf' % (self.scripts_dir, self.buildstats, self.tmpdir))
+        self.assertTrue(os.path.exists(self.tmpdir + "/charts.pdf"))
+