tests: add regression tests for testing dependency loop detection

Author: liushuyu

tests/fixtures/test-5/autobuild/defines

@@ -0,0 +1,5 @@
+PKGNAME='test-5'
+PKGDEP="test-6"
+PKGDEP__ARCH="${PKGDEP}"
+BUILDDEP=""
+BUILDDEP__ARCH=""

tests/fixtures/test-5/spec

@@ -0,0 +1,3 @@
+VER=1
+SRCS='git::git://github.com/AOSC-Dev/acbs'
+CHKSUMS='SKIP'

tests/fixtures/test-6/autobuild/defines

@@ -0,0 +1,5 @@
+PKGNAME='test-6'
+PKGDEP="test-5"
+PKGDEP__ARCH="${PKGDEP}"
+BUILDDEP=""
+BUILDDEP__ARCH=""

tests/fixtures/test-6/spec

@@ -0,0 +1,3 @@
+VER=1
+SRCS='git::git://github.com/AOSC-Dev/acbs git::https://github.com/AOSC-Dev/acbs'
+CHKSUMS='SKIP SKIP'

tests/test.py

@@ -63,6 +63,17 @@ def test_deps_loop(self):
         error = check_scc(packages)
         self.assertEqual(error, True)
 
+    def test_deps_loop_bidirection(self):
+        acbs.parser.arch = 'arch'
+        acbs.parser.filter_dependencies = fake_pm
+        package = acbs.parser.parse_package(
+            './tests/fixtures/test-5/autobuild', stage2=False)
+        package2 = acbs.parser.parse_package(
+            './tests/fixtures/test-6/autobuild', stage2=False)
+        packages = tarjan_search(get_deps_graph([package, package2]), './tests', stage2=False)
+        error = check_scc(packages)
+        self.assertEqual(error, True)
+
     def test_fail_arch(self):
         import re
         self.assertEqual(re.compile("^(?!amd64)"), fail_arch_regex("!amd64"))