test: ipa: add IPAModule tests

Add tests to test the the IPAModule class, for loading the IPA module
info from IPA module .so shared objects, with modules written in both C
and C++.

Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

test/ipa/ipa_test.cpp

@@ -0,0 +1,74 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2019, Google Inc.
+ *
+ * load-so.cpp - loading .so tests
+ */
+
+#include <iostream>
+#include <string.h>
+
+#include "ipa_module.h"
+
+#include "test.h"
+
+using namespace std;
+using namespace libcamera;
+
+class IPAModuleTest : public Test
+{
+protected:
+	int runTest(const string &path, const struct IPAModuleInfo &testInfo)
+	{
+		int ret = 0;
+
+		IPAModule *ll = new IPAModule(path);
+
+		if (!ll->isValid()) {
+			cerr << "test IPA module " << path << " is invalid"
+			     << endl;
+			delete ll;
+			return -1;
+		}
+
+		const struct IPAModuleInfo &info = ll->info();
+
+		if (strcmp(info.name, testInfo.name)) {
+			cerr << "test IPA module has incorrect name" << endl;
+			cerr << "expected \"" << testInfo.name << "\", got \""
+			     << info.name << "\"" << endl;
+			ret = -1;
+		}
+
+		if (info.version != testInfo.version) {
+			cerr << "test IPA module has incorrect version" << endl;
+			cerr << "expected \"" << testInfo.version << "\", got \""
+			     << info.version << "\"" << endl;
+			ret = -1;
+		}
+
+		delete ll;
+		return ret;
+	}
+
+	int run() override
+	{
+		int count = 0;
+
+		const struct IPAModuleInfo testInfo = {
+			"It's over nine thousand!",
+			9001,
+		};
+
+		count += runTest("test/ipa/ipa-dummy-c.so", testInfo);
+
+		count += runTest("test/ipa/ipa-dummy-cpp.so", testInfo);
+
+		if (count < 0)
+			return TestFail;
+
+		return TestPass;
+	}
+};
+
+TEST_REGISTER(IPAModuleTest)

test/ipa/meson.build

@@ -0,0 +1,21 @@
+ipa_modules_sources = [
+    ['ipa-dummy-c',   'shared_test.c'],
+    ['ipa-dummy-cpp', 'shared_test.cpp'],
+]
+
+foreach m : ipa_modules_sources
+    shared_library(m, name_prefix: '',
+                   include_directories: test_includes_public)
+endforeach
+
+ipa_test = [
+    ['ipa_test', 'ipa_test.cpp'],
+]
+
+foreach t : ipa_test
+    exe = executable(t[0], t[1],
+                     link_with : test_libraries,
+                     include_directories : test_includes_internal)
+
+    test(t[0], exe, suite: 'ipa', is_parallel: false)
+endforeach

test/ipa/shared_test.c

@@ -0,0 +1,6 @@
+#include <libcamera/ipa/ipa_module_info.h>
+
+const struct IPAModuleInfo ipaModuleInfo = {
+	.name = "It's over nine thousand!",
+	.version = 9001,
+};

test/ipa/shared_test.cpp

@@ -0,0 +1,12 @@
+#include <libcamera/ipa/ipa_module_info.h>
+
+namespace libcamera {
+
+extern "C" {
+const struct libcamera::IPAModuleInfo ipaModuleInfo = {
+	"It's over nine thousand!",
+	9001,
+};
+};
+
+}; /* namespace libcamera */

test/meson.build

@@ -1,6 +1,7 @@
 subdir('libtest')
 
 subdir('camera')
+subdir('ipa')
 subdir('media_device')
 subdir('pipeline')
 subdir('v4l2_device')