oeqa/selftest: add test for package manager version comparison

This test case verifies that opkg, dpkg, and rpm all have the same behaviour for
version ordering, specifically the behaviour of ~ which should be sorting
*before* nothing:

  1.0 < 2.0~pre < 2.0 < 2.0-fix

Signed-off-by: Ross Burton <ross.burton@intel.com>

1 files changed, 80 insertions, 0 deletions

diff --git a/meta/lib/oeqa/selftest/package.py b/meta/lib/oeqa/selftest/package.py
new file mode 100644
index 0000000000..95125f220d
--- /dev/null
+++ b/meta/lib/oeqa/selftest/package.py
@@ -0,0 +1,80 @@
+from oeqa.selftest.base import oeSelfTest
+from oeqa.utils.commands import bitbake, get_bb_vars
+import subprocess, os
+import oe.path
+
+class VersionOrdering(oeSelfTest):
+    # version1, version2, sort order
+    tests = (
+        ("1.0", "1.0", 0),
+        ("1.0", "2.0", -1),
+        ("2.0", "1.0", 1),
+        ("2.0-rc", "2.0", 1),
+        ("2.0~rc", "2.0", -1),
+        ("1.2rc2", "1.2.0", -1)
+        )
+
+    @classmethod
+    def setUpClass(cls):
+        # Build the tools we need and populate a sysroot
+        bitbake("dpkg-native opkg-native rpm-native python3-native")
+        bitbake("build-sysroots -c build_native_sysroot")
+
+        # Get the paths so we can point into the sysroot correctly
+        vars = get_bb_vars(["STAGING_DIR", "BUILD_ARCH", "bindir_native", "libdir_native"])
+        cls.staging = oe.path.join(vars["STAGING_DIR"], vars["BUILD_ARCH"])
+        cls.bindir = oe.path.join(cls.staging, vars["bindir_native"])
+        cls.libdir = oe.path.join(cls.staging, vars["libdir_native"])
+
+    def setUp(self):
+        # Just for convenience
+        self.staging = type(self).staging
+        self.bindir = type(self).bindir
+        self.libdir = type(self).libdir
+
+    def test_dpkg(self):
+        for ver1, ver2, sort in self.tests:
+            op = { -1: "<<", 0: "=", 1: ">>" }[sort]
+            status = subprocess.call((oe.path.join(self.bindir, "dpkg"), "--compare-versions", ver1, op, ver2))
+            self.assertEqual(status, 0, "%s %s %s failed" % (ver1, op, ver2))
+
+            # Now do it again but with incorrect operations
+            op = { -1: ">>", 0: ">>", 1: "<<" }[sort]
+            status = subprocess.call((oe.path.join(self.bindir, "dpkg"), "--compare-versions", ver1, op, ver2))
+            self.assertNotEqual(status, 0, "%s %s %s failed" % (ver1, op, ver2))
+
+            # Now do it again but with incorrect operations
+            op = { -1: "=", 0: "<<", 1: "=" }[sort]
+            status = subprocess.call((oe.path.join(self.bindir, "dpkg"), "--compare-versions", ver1, op, ver2))
+            self.assertNotEqual(status, 0, "%s %s %s failed" % (ver1, op, ver2))
+
+    def test_opkg(self):
+        for ver1, ver2, sort in self.tests:
+            op = { -1: "<<", 0: "=", 1: ">>" }[sort]
+            status = subprocess.call((oe.path.join(self.bindir, "opkg"), "compare-versions", ver1, op, ver2))
+            self.assertEqual(status, 0, "%s %s %s failed" % (ver1, op, ver2))
+
+            # Now do it again but with incorrect operations
+            op = { -1: ">>", 0: ">>", 1: "<<" }[sort]
+            status = subprocess.call((oe.path.join(self.bindir, "opkg"), "compare-versions", ver1, op, ver2))
+            self.assertNotEqual(status, 0, "%s %s %s failed" % (ver1, op, ver2))
+
+            # Now do it again but with incorrect operations
+            op = { -1: "=", 0: "<<", 1: "=" }[sort]
+            status = subprocess.call((oe.path.join(self.bindir, "opkg"), "compare-versions", ver1, op, ver2))
+            self.assertNotEqual(status, 0, "%s %s %s failed" % (ver1, op, ver2))
+
+    def test_rpm(self):
+        # Need to tell the Python bindings where to find its configuration
+        env = os.environ.copy()
+        env["RPM_CONFIGDIR"] = oe.path.join(self.libdir, "rpm")
+
+        for ver1, ver2, sort in self.tests:
+            # The only way to test rpm is via the Python module, so we need to
+            # execute python3-native.  labelCompare returns -1/0/1 (like strcmp)
+            # so add 100 and use that as the exit code.
+            command = (oe.path.join(self.bindir, "python3-native", "python3"), "-c",
+                       "import sys, rpm; v1=(None, \"%s\", None); v2=(None, \"%s\", None); sys.exit(rpm.labelCompare(v1, v2) + 100)" % (ver1, ver2))
+            status = subprocess.call(command, env=env)
+            self.assertIn(status, (99, 100, 101))
+            self.assertEqual(status - 100, sort, "%s %s (%d) failed" % (ver1, ver2, sort))