util: Move tests in single file directories to tests/

Acked-by: Emma Anholt <emma@anholt.net>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
Acked-by: Matt Turner <mattst88@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13425>

src/util/tests/string_buffer_test.cpp

@@ -0,0 +1,122 @@
+/*
+ * Copyright © 2017 Thomas Helland
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+#include <gtest/gtest.h>
+#include "util/string_buffer.h"
+
+/**
+ * \file string_buffer_test.cpp
+ *
+ * Test the string buffer implementation
+ */
+
+#define INITIAL_BUF_SIZE 6
+class string_buffer : public ::testing::Test {
+public:
+
+   struct _mesa_string_buffer *buf;
+   const char *str1;
+   const char *str2;
+   const char *str3;
+   char str4[80];
+   char str5[40];
+
+   virtual void SetUp();
+   virtual void TearDown();
+};
+
+void
+string_buffer::SetUp()
+{
+   str1 = "test1";
+   str2 = "test2";
+   str3 = "test1test2";
+   buf = _mesa_string_buffer_create(NULL, INITIAL_BUF_SIZE);
+}
+
+void
+string_buffer::TearDown()
+{
+   /* Finally, clean up after us */
+   _mesa_string_buffer_destroy(buf);
+}
+
+static uint32_t
+space_left_in_buffer(_mesa_string_buffer *buf)
+{
+   return buf->capacity - buf->length - 1;
+}
+
+TEST_F(string_buffer, string_buffer_tests)
+{
+   /* The string terminator needs one byte, so there should one "missing" */
+   EXPECT_TRUE(space_left_in_buffer(buf) == INITIAL_BUF_SIZE - 1);
+
+   /* Start by appending str1 */
+   EXPECT_TRUE(_mesa_string_buffer_append(buf, str1));
+   EXPECT_TRUE(space_left_in_buffer(buf) ==
+               INITIAL_BUF_SIZE - strlen(str1) - 1);
+   EXPECT_TRUE(strcmp(buf->buf, str1) == 0);
+
+   /* Add more, so that the string is resized */
+   EXPECT_TRUE(_mesa_string_buffer_append(buf, str2));
+
+   /* The string should now be equal to str3 */
+   EXPECT_TRUE(strcmp(buf->buf, str3) == 0);
+
+   /* Check that the length of the string is reset when clearing */
+   _mesa_string_buffer_clear(buf);
+   EXPECT_TRUE(buf->length == 0);
+   EXPECT_TRUE(strlen(buf->buf) == 0);
+
+   /* Test a string with some formatting */
+   snprintf(str4, sizeof(str4), "Testing formatting %d, %f", 100, 1.0);
+   EXPECT_TRUE(_mesa_string_buffer_printf(buf, "Testing formatting %d, %f", 100, 1.0));
+   EXPECT_TRUE(strcmp(buf->buf, str4) == 0);
+
+   /* Compile a string with some other formatting */
+   snprintf(str5, sizeof(str5), "Testing formatting %d, %x", 100, 0xDEADBEAF);
+
+   /* Concatenate str5 to str4 */
+   strncat(str4, str5, sizeof(str5));
+
+   /* Now use the formatted append function again */
+   EXPECT_TRUE(_mesa_string_buffer_printf(buf, "Testing formatting %d, %x", 100, 0xDEADBEAF));
+
+   /* The string buffer should now be equal to str4 */
+   EXPECT_TRUE(strcmp(buf->buf, str4) == 0);
+
+   _mesa_string_buffer_clear(buf);
+
+   /* Test appending by one char at a time */
+   EXPECT_TRUE(_mesa_string_buffer_append_char(buf, 'a'));
+   EXPECT_TRUE(buf->length == 1);
+   EXPECT_TRUE(strcmp(buf->buf, "a") == 0);
+   EXPECT_TRUE(_mesa_string_buffer_append_char(buf, 'a'));
+   EXPECT_TRUE(strcmp(buf->buf, "aa") == 0);
+}