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Message-Id: <20190820232046.50175-11-brendanhiggins@google.com>
Date:   Tue, 20 Aug 2019 16:20:38 -0700
From:   Brendan Higgins <brendanhiggins@...gle.com>
To:     frowand.list@...il.com, gregkh@...uxfoundation.org,
        jpoimboe@...hat.com, keescook@...gle.com,
        kieran.bingham@...asonboard.com, mcgrof@...nel.org,
        peterz@...radead.org, robh@...nel.org, sboyd@...nel.org,
        shuah@...nel.org, tytso@....edu, yamada.masahiro@...ionext.com
Cc:     devicetree@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        kunit-dev@...glegroups.com, linux-doc@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-kbuild@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
        linux-nvdimm@...ts.01.org, linux-um@...ts.infradead.org,
        Alexander.Levin@...rosoft.com, Tim.Bird@...y.com,
        amir73il@...il.com, dan.carpenter@...cle.com, daniel@...ll.ch,
        jdike@...toit.com, joel@....id.au, julia.lawall@...6.fr,
        khilman@...libre.com, knut.omang@...cle.com, logang@...tatee.com,
        mpe@...erman.id.au, pmladek@...e.com, rdunlap@...radead.org,
        richard@....at, rientjes@...gle.com, rostedt@...dmis.org,
        wfg@...ux.intel.com, Brendan Higgins <brendanhiggins@...gle.com>
Subject: [PATCH v14 10/18] kunit: test: add tests for kunit test abort

Add KUnit tests for the KUnit test abort mechanism (see preceding
commit). Add tests both for general try catch mechanism as well as
non-architecture specific mechanism.

Signed-off-by: Brendan Higgins <brendanhiggins@...gle.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Reviewed-by: Logan Gunthorpe <logang@...tatee.com>
Reviewed-by: Stephen Boyd <sboyd@...nel.org>
---
 kunit/Makefile    |   3 +-
 kunit/test-test.c | 106 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 108 insertions(+), 1 deletion(-)
 create mode 100644 kunit/test-test.c

diff --git a/kunit/Makefile b/kunit/Makefile
index c9176c9c578c6..769d9402b5d3a 100644
--- a/kunit/Makefile
+++ b/kunit/Makefile
@@ -3,6 +3,7 @@ obj-$(CONFIG_KUNIT) +=			test.o \
 					assert.o \
 					try-catch.o
 
-obj-$(CONFIG_KUNIT_TEST) +=		string-stream-test.o
+obj-$(CONFIG_KUNIT_TEST) +=		test-test.o \
+					string-stream-test.o
 
 obj-$(CONFIG_KUNIT_EXAMPLE_TEST) +=	example-test.o
diff --git a/kunit/test-test.c b/kunit/test-test.c
new file mode 100644
index 0000000000000..06d34d36b1038
--- /dev/null
+++ b/kunit/test-test.c
@@ -0,0 +1,106 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * KUnit test for core test infrastructure.
+ *
+ * Copyright (C) 2019, Google LLC.
+ * Author: Brendan Higgins <brendanhiggins@...gle.com>
+ */
+#include <kunit/test.h>
+
+struct kunit_try_catch_test_context {
+	struct kunit_try_catch *try_catch;
+	bool function_called;
+};
+
+static void kunit_test_successful_try(void *data)
+{
+	struct kunit *test = data;
+	struct kunit_try_catch_test_context *ctx = test->priv;
+
+	ctx->function_called = true;
+}
+
+static void kunit_test_no_catch(void *data)
+{
+	struct kunit *test = data;
+
+	KUNIT_FAIL(test, "Catch should not be called\n");
+}
+
+static void kunit_test_try_catch_successful_try_no_catch(struct kunit *test)
+{
+	struct kunit_try_catch_test_context *ctx = test->priv;
+	struct kunit_try_catch *try_catch = ctx->try_catch;
+
+	kunit_try_catch_init(try_catch,
+			     test,
+			     kunit_test_successful_try,
+			     kunit_test_no_catch);
+	kunit_try_catch_run(try_catch, test);
+
+	KUNIT_EXPECT_TRUE(test, ctx->function_called);
+}
+
+static void kunit_test_unsuccessful_try(void *data)
+{
+	struct kunit *test = data;
+	struct kunit_try_catch_test_context *ctx = test->priv;
+	struct kunit_try_catch *try_catch = ctx->try_catch;
+
+	kunit_try_catch_throw(try_catch);
+	KUNIT_FAIL(test, "This line should never be reached\n");
+}
+
+static void kunit_test_catch(void *data)
+{
+	struct kunit *test = data;
+	struct kunit_try_catch_test_context *ctx = test->priv;
+
+	ctx->function_called = true;
+}
+
+static void kunit_test_try_catch_unsuccessful_try_does_catch(struct kunit *test)
+{
+	struct kunit_try_catch_test_context *ctx = test->priv;
+	struct kunit_try_catch *try_catch = ctx->try_catch;
+
+	kunit_try_catch_init(try_catch,
+			     test,
+			     kunit_test_unsuccessful_try,
+			     kunit_test_catch);
+	kunit_try_catch_run(try_catch, test);
+
+	KUNIT_EXPECT_TRUE(test, ctx->function_called);
+}
+
+static int kunit_try_catch_test_init(struct kunit *test)
+{
+	struct kunit_try_catch_test_context *ctx;
+
+	ctx = kunit_kzalloc(test, sizeof(*ctx), GFP_KERNEL);
+	if (!ctx)
+		return -ENOMEM;
+
+	test->priv = ctx;
+
+	ctx->try_catch = kunit_kmalloc(test,
+				       sizeof(*ctx->try_catch),
+				       GFP_KERNEL);
+	if (!ctx->try_catch)
+		return -ENOMEM;
+
+	return 0;
+}
+
+static struct kunit_case kunit_try_catch_test_cases[] = {
+	KUNIT_CASE(kunit_test_try_catch_successful_try_no_catch),
+	KUNIT_CASE(kunit_test_try_catch_unsuccessful_try_does_catch),
+	{}
+};
+
+static struct kunit_suite kunit_try_catch_test_suite = {
+	.name = "kunit-try-catch-test",
+	.init = kunit_try_catch_test_init,
+	.test_cases = kunit_try_catch_test_cases,
+};
+kunit_test_suite(kunit_try_catch_test_suite);
-- 
2.23.0.rc1.153.gdeed80330f-goog

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