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Message-Id: <20240618170331.264851-5-ivan.orlov0322@gmail.com>
Date: Tue, 18 Jun 2024 18:03:30 +0100
From: Ivan Orlov <ivan.orlov0322@...il.com>
To: brendan.higgins@...ux.dev,
	davidgow@...gle.com,
	rmoar@...gle.com
Cc: Ivan Orlov <ivan.orlov0322@...il.com>,
	linux-kselftest@...r.kernel.org,
	kunit-dev@...glegroups.com,
	linux-kernel@...r.kernel.org,
	skhan@...uxfoundation.org
Subject: [PATCH v2 4/5] kunit: assert_test: Prepare to be merged into kunit-test.c

Add 'kunit_assert_' prefix for 'is_literal' and 'is_str_literal'
functions. This way we will be sure that we are not exporting ambiguous
symbols into the KUnit namespace.

Export these (and other) functions from assert into the KUnit namespace,
so we could use them in the tests (and cover them as well).

Signed-off-by: Ivan Orlov <ivan.orlov0322@...il.com>
---
V1 -> V2:
- Besides exporting the non-static functions from assert.c into the
KUnit namespace, rename some of them as well (add kunit_assert_ prefix
to make their names less ambiguous).

 include/kunit/assert.h  |  4 ++--
 lib/kunit/assert.c      | 19 +++++++++++++------
 lib/kunit/assert_test.c | 40 ++++++++++++++++++++--------------------
 3 files changed, 35 insertions(+), 28 deletions(-)

diff --git a/include/kunit/assert.h b/include/kunit/assert.h
index 7e7490a74b13..3994acc520ae 100644
--- a/include/kunit/assert.h
+++ b/include/kunit/assert.h
@@ -221,8 +221,8 @@ void kunit_mem_assert_format(const struct kunit_assert *assert,
 #if IS_ENABLED(CONFIG_KUNIT)
 void kunit_assert_print_msg(const struct va_format *message,
 			    struct string_stream *stream);
-bool is_literal(const char *text, long long value);
-bool is_str_literal(const char *text, const char *value);
+bool kunit_assert_is_literal(const char *text, long long value);
+bool kunit_assert_is_str_literal(const char *text, const char *value);
 void kunit_assert_hexdump(struct string_stream *stream,
 			  const void *buf,
 			  const void *compared_buf,
diff --git a/lib/kunit/assert.c b/lib/kunit/assert.c
index 867aa5c4bccf..62b86bf5603e 100644
--- a/lib/kunit/assert.c
+++ b/lib/kunit/assert.c
@@ -38,6 +38,7 @@ void kunit_assert_print_msg(const struct va_format *message,
 	if (message->fmt)
 		string_stream_add(stream, "\n%pV", message);
 }
+EXPORT_SYMBOL_IF_KUNIT(kunit_assert_print_msg);
 
 void kunit_fail_assert_format(const struct kunit_assert *assert,
 			      const struct va_format *message,
@@ -91,7 +92,8 @@ void kunit_ptr_not_err_assert_format(const struct kunit_assert *assert,
 EXPORT_SYMBOL_GPL(kunit_ptr_not_err_assert_format);
 
 /* Checks if `text` is a literal representing `value`, e.g. "5" and 5 */
-VISIBLE_IF_KUNIT bool is_literal(const char *text, long long value)
+VISIBLE_IF_KUNIT
+bool kunit_assert_is_literal(const char *text, long long value)
 {
 	char *buffer;
 	int len;
@@ -112,6 +114,7 @@ VISIBLE_IF_KUNIT bool is_literal(const char *text, long long value)
 
 	return ret;
 }
+EXPORT_SYMBOL_IF_KUNIT(kunit_assert_is_literal);
 
 void kunit_binary_assert_format(const struct kunit_assert *assert,
 				const struct va_format *message,
@@ -127,12 +130,12 @@ void kunit_binary_assert_format(const struct kunit_assert *assert,
 			  binary_assert->text->left_text,
 			  binary_assert->text->operation,
 			  binary_assert->text->right_text);
-	if (!is_literal(binary_assert->text->left_text, binary_assert->left_value))
+	if (!kunit_assert_is_literal(binary_assert->text->left_text, binary_assert->left_value))
 		string_stream_add(stream, KUNIT_SUBSUBTEST_INDENT "%s == %lld (0x%llx)\n",
 				  binary_assert->text->left_text,
 				  binary_assert->left_value,
 				  binary_assert->left_value);
-	if (!is_literal(binary_assert->text->right_text, binary_assert->right_value))
+	if (!kunit_assert_is_literal(binary_assert->text->right_text, binary_assert->right_value))
 		string_stream_add(stream, KUNIT_SUBSUBTEST_INDENT "%s == %lld (0x%llx)",
 				  binary_assert->text->right_text,
 				  binary_assert->right_value,
@@ -168,7 +171,8 @@ EXPORT_SYMBOL_GPL(kunit_binary_ptr_assert_format);
 /* Checks if KUNIT_EXPECT_STREQ() args were string literals.
  * Note: `text` will have ""s where as `value` will not.
  */
-VISIBLE_IF_KUNIT bool is_str_literal(const char *text, const char *value)
+VISIBLE_IF_KUNIT
+bool kunit_assert_is_str_literal(const char *text, const char *value)
 {
 	int len;
 
@@ -180,6 +184,7 @@ VISIBLE_IF_KUNIT bool is_str_literal(const char *text, const char *value)
 
 	return strncmp(text + 1, value, len - 2) == 0;
 }
+EXPORT_SYMBOL_IF_KUNIT(kunit_assert_is_str_literal);
 
 void kunit_binary_str_assert_format(const struct kunit_assert *assert,
 				    const struct va_format *message,
@@ -195,11 +200,12 @@ void kunit_binary_str_assert_format(const struct kunit_assert *assert,
 			  binary_assert->text->left_text,
 			  binary_assert->text->operation,
 			  binary_assert->text->right_text);
-	if (!is_str_literal(binary_assert->text->left_text, binary_assert->left_value))
+	if (!kunit_assert_is_str_literal(binary_assert->text->left_text, binary_assert->left_value))
 		string_stream_add(stream, KUNIT_SUBSUBTEST_INDENT "%s == \"%s\"\n",
 				  binary_assert->text->left_text,
 				  binary_assert->left_value);
-	if (!is_str_literal(binary_assert->text->right_text, binary_assert->right_value))
+	if (!kunit_assert_is_str_literal(binary_assert->text->right_text,
+					 binary_assert->right_value))
 		string_stream_add(stream, KUNIT_SUBSUBTEST_INDENT "%s == \"%s\"",
 				  binary_assert->text->right_text,
 				  binary_assert->right_value);
@@ -232,6 +238,7 @@ void kunit_assert_hexdump(struct string_stream *stream,
 			string_stream_add(stream, " %02x ", buf1[i]);
 	}
 }
+EXPORT_SYMBOL_IF_KUNIT(kunit_assert_hexdump);
 
 void kunit_mem_assert_format(const struct kunit_assert *assert,
 			     const struct va_format *message,
diff --git a/lib/kunit/assert_test.c b/lib/kunit/assert_test.c
index 4a5967712186..4999233180d6 100644
--- a/lib/kunit/assert_test.c
+++ b/lib/kunit/assert_test.c
@@ -11,28 +11,28 @@
 #define ASSERT_TEST_EXPECT_CONTAIN(test, str, substr) KUNIT_EXPECT_TRUE(test, strstr(str, substr))
 #define ASSERT_TEST_EXPECT_NCONTAIN(test, str, substr) KUNIT_EXPECT_FALSE(test, strstr(str, substr))
 
-static void kunit_test_is_literal(struct kunit *test)
+static void kunit_test_assert_is_literal(struct kunit *test)
 {
-	KUNIT_EXPECT_TRUE(test, is_literal("5", 5));
-	KUNIT_EXPECT_TRUE(test, is_literal("0", 0));
-	KUNIT_EXPECT_TRUE(test, is_literal("1234567890", 1234567890));
-	KUNIT_EXPECT_TRUE(test, is_literal("-1234567890", -1234567890));
-	KUNIT_EXPECT_FALSE(test, is_literal("05", 5));
-	KUNIT_EXPECT_FALSE(test, is_literal("", 0));
-	KUNIT_EXPECT_FALSE(test, is_literal("-0", 0));
-	KUNIT_EXPECT_FALSE(test, is_literal("12#45", 1245));
+	KUNIT_EXPECT_TRUE(test, kunit_assert_is_literal("5", 5));
+	KUNIT_EXPECT_TRUE(test, kunit_assert_is_literal("0", 0));
+	KUNIT_EXPECT_TRUE(test, kunit_assert_is_literal("1234567890", 1234567890));
+	KUNIT_EXPECT_TRUE(test, kunit_assert_is_literal("-1234567890", -1234567890));
+	KUNIT_EXPECT_FALSE(test, kunit_assert_is_literal("05", 5));
+	KUNIT_EXPECT_FALSE(test, kunit_assert_is_literal("", 0));
+	KUNIT_EXPECT_FALSE(test, kunit_assert_is_literal("-0", 0));
+	KUNIT_EXPECT_FALSE(test, kunit_assert_is_literal("12#45", 1245));
 }
 
-static void kunit_test_is_str_literal(struct kunit *test)
+static void kunit_test_assert_is_str_literal(struct kunit *test)
 {
-	KUNIT_EXPECT_TRUE(test, is_str_literal("\"Hello, World!\"", "Hello, World!"));
-	KUNIT_EXPECT_TRUE(test, is_str_literal("\"\"", ""));
-	KUNIT_EXPECT_TRUE(test, is_str_literal("\"\"\"", "\""));
-	KUNIT_EXPECT_FALSE(test, is_str_literal("", ""));
-	KUNIT_EXPECT_FALSE(test, is_str_literal("\"", "\""));
-	KUNIT_EXPECT_FALSE(test, is_str_literal("\"Abacaba", "Abacaba"));
-	KUNIT_EXPECT_FALSE(test, is_str_literal("Abacaba\"", "Abacaba"));
-	KUNIT_EXPECT_FALSE(test, is_str_literal("\"Abacaba\"", "\"Abacaba\""));
+	KUNIT_EXPECT_TRUE(test, kunit_assert_is_str_literal("\"Hello, World!\"", "Hello, World!"));
+	KUNIT_EXPECT_TRUE(test, kunit_assert_is_str_literal("\"\"", ""));
+	KUNIT_EXPECT_TRUE(test, kunit_assert_is_str_literal("\"\"\"", "\""));
+	KUNIT_EXPECT_FALSE(test, kunit_assert_is_str_literal("", ""));
+	KUNIT_EXPECT_FALSE(test, kunit_assert_is_str_literal("\"", "\""));
+	KUNIT_EXPECT_FALSE(test, kunit_assert_is_str_literal("\"Abacaba", "Abacaba"));
+	KUNIT_EXPECT_FALSE(test, kunit_assert_is_str_literal("Abacaba\"", "Abacaba"));
+	KUNIT_EXPECT_FALSE(test, kunit_assert_is_str_literal("\"Abacaba\"", "\"Abacaba\""));
 }
 
 KUNIT_DEFINE_ACTION_WRAPPER(kfree_wrapper, kfree, const void *);
@@ -366,8 +366,8 @@ static void kunit_test_mem_assert_format(struct kunit *test)
 }
 
 static struct kunit_case assert_test_cases[] = {
-	KUNIT_CASE(kunit_test_is_literal),
-	KUNIT_CASE(kunit_test_is_str_literal),
+	KUNIT_CASE(kunit_test_assert_is_literal),
+	KUNIT_CASE(kunit_test_assert_is_str_literal),
 	KUNIT_CASE(kunit_test_assert_prologue),
 	KUNIT_CASE(kunit_test_assert_print_msg),
 	KUNIT_CASE(kunit_test_unary_assert_format),
-- 
2.34.1


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