--- /dev/null
+/* Copyright (c) 2014, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+#include <stdio.h>
+#include <string.h>
+
+#include <gtest/gtest.h>
+
+#include <openssl/crypto.h>
+#include <openssl/err.h>
+#include <openssl/mem.h>
+
+#include "./internal.h"
+
+
+TEST(ErrTest, Overflow) {
+ for (unsigned i = 0; i < ERR_NUM_ERRORS*2; i++) {
+ ERR_put_error(1, 0 /* unused */, i+1, "test", 1);
+ }
+
+ for (unsigned i = 0; i < ERR_NUM_ERRORS - 1; i++) {
+ SCOPED_TRACE(i);
+ uint32_t err = ERR_get_error();
+ // Errors are returned in order they were pushed, with the least recent ones
+ // removed, up to |ERR_NUM_ERRORS - 1| errors. So the errors returned are
+ // |ERR_NUM_ERRORS + 2| through |ERR_NUM_ERRORS * 2|, inclusive.
+ EXPECT_NE(0u, err);
+ EXPECT_EQ(static_cast<int>(i + ERR_NUM_ERRORS + 2), ERR_GET_REASON(err));
+ }
+
+ EXPECT_EQ(0u, ERR_get_error());
+}
+
+TEST(ErrTest, PutError) {
+ ASSERT_EQ(0u, ERR_get_error())
+ << "ERR_get_error returned value before an error was added.";
+
+ ERR_put_error(1, 0 /* unused */, 2, "test", 4);
+ ERR_add_error_data(1, "testing");
+
+ int peeked_line, line, peeked_flags, flags;
+ const char *peeked_file, *file, *peeked_data, *data;
+ uint32_t peeked_packed_error =
+ ERR_peek_error_line_data(&peeked_file, &peeked_line, &peeked_data,
+ &peeked_flags);
+ uint32_t packed_error = ERR_get_error_line_data(&file, &line, &data, &flags);
+
+ EXPECT_EQ(peeked_packed_error, packed_error);
+ EXPECT_EQ(peeked_file, file);
+ EXPECT_EQ(peeked_data, data);
+ EXPECT_EQ(peeked_flags, flags);
+
+ EXPECT_STREQ("test", file);
+ EXPECT_EQ(4, line);
+ EXPECT_TRUE(flags & ERR_FLAG_STRING);
+ EXPECT_EQ(1, ERR_GET_LIB(packed_error));
+ EXPECT_EQ(2, ERR_GET_REASON(packed_error));
+ EXPECT_STREQ("testing", data);
+}
+
+TEST(ErrTest, ClearError) {
+ ASSERT_EQ(0u, ERR_get_error())
+ << "ERR_get_error returned value before an error was added.";
+
+ ERR_put_error(1, 0 /* unused */, 2, "test", 4);
+ ERR_clear_error();
+
+ // The error queue should be cleared.
+ EXPECT_EQ(0u, ERR_get_error());
+}
+
+TEST(ErrTest, Print) {
+ ERR_put_error(1, 0 /* unused */, 2, "test", 4);
+ ERR_add_error_data(1, "testing");
+ uint32_t packed_error = ERR_get_error();
+
+ char buf[256];
+ for (size_t i = 0; i <= sizeof(buf); i++) {
+ ERR_error_string_n(packed_error, buf, i);
+ }
+}
+
+TEST(ErrTest, Release) {
+ ERR_put_error(1, 0 /* unused */, 2, "test", 4);
+ ERR_remove_thread_state(NULL);
+
+ // The error queue should be cleared.
+ EXPECT_EQ(0u, ERR_get_error());
+}
+
+static bool HasSuffix(const char *str, const char *suffix) {
+ size_t suffix_len = strlen(suffix);
+ size_t str_len = strlen(str);
+ if (str_len < suffix_len) {
+ return false;
+ }
+ return strcmp(str + str_len - suffix_len, suffix) == 0;
+}
+
+TEST(ErrTest, PutMacro) {
+ int expected_line = __LINE__ + 1;
+ OPENSSL_PUT_ERROR(USER, ERR_R_INTERNAL_ERROR);
+
+ int line;
+ const char *file;
+ uint32_t error = ERR_get_error_line(&file, &line);
+
+ EXPECT_PRED2(HasSuffix, file, "err_test.cc");
+ EXPECT_EQ(expected_line, line);
+ EXPECT_EQ(ERR_LIB_USER, ERR_GET_LIB(error));
+ EXPECT_EQ(ERR_R_INTERNAL_ERROR, ERR_GET_REASON(error));
+}
+
+TEST(ErrTest, SaveAndRestore) {
+ // Restoring no state clears the error queue, including error data.
+ ERR_put_error(1, 0 /* unused */, 1, "test1.c", 1);
+ ERR_put_error(2, 0 /* unused */, 2, "test2.c", 2);
+ ERR_add_error_data(1, "data1");
+ ERR_restore_state(nullptr);
+ EXPECT_EQ(0u, ERR_get_error());
+
+ // Add some entries to the error queue and save it.
+ ERR_put_error(1, 0 /* unused */, 1, "test1.c", 1);
+ ERR_add_error_data(1, "data1");
+ ERR_put_error(2, 0 /* unused */, 2, "test2.c", 2);
+ ERR_put_error(3, 0 /* unused */, 3, "test3.c", 3);
+ ERR_add_error_data(1, "data3");
+ bssl::UniquePtr<ERR_SAVE_STATE> saved(ERR_save_state());
+ ASSERT_TRUE(saved);
+
+ // The existing error queue entries still exist.
+ int line, flags;
+ const char *file, *data;
+ uint32_t packed_error = ERR_get_error_line_data(&file, &line, &data, &flags);
+ EXPECT_EQ(ERR_GET_LIB(packed_error), 1);
+ EXPECT_EQ(ERR_GET_REASON(packed_error), 1);
+ EXPECT_STREQ("test1.c", file);
+ EXPECT_EQ(line, 1);
+ EXPECT_STREQ(data, "data1");
+ EXPECT_EQ(flags, ERR_FLAG_STRING);
+
+ // The state may be restored, both over an empty and non-empty state.
+ for (unsigned i = 0; i < 2; i++) {
+ SCOPED_TRACE(i);
+ ERR_restore_state(saved.get());
+
+ packed_error = ERR_get_error_line_data(&file, &line, &data, &flags);
+ EXPECT_EQ(ERR_GET_LIB(packed_error), 1);
+ EXPECT_EQ(ERR_GET_REASON(packed_error), 1);
+ EXPECT_STREQ("test1.c", file);
+ EXPECT_EQ(line, 1);
+ EXPECT_STREQ(data, "data1");
+ EXPECT_EQ(flags, ERR_FLAG_STRING);
+
+ packed_error = ERR_get_error_line_data(&file, &line, &data, &flags);
+ EXPECT_EQ(ERR_GET_LIB(packed_error), 2);
+ EXPECT_EQ(ERR_GET_REASON(packed_error), 2);
+ EXPECT_STREQ("test2.c", file);
+ EXPECT_EQ(line, 2);
+ EXPECT_STREQ(data, ""); // No error data is reported as the empty string.
+ EXPECT_EQ(flags, 0);
+
+ packed_error = ERR_get_error_line_data(&file, &line, &data, &flags);
+ EXPECT_EQ(ERR_GET_LIB(packed_error), 3);
+ EXPECT_EQ(ERR_GET_REASON(packed_error), 3);
+ EXPECT_STREQ("test3.c", file);
+ EXPECT_EQ(line, 3);
+ EXPECT_STREQ(data, "data3");
+ EXPECT_EQ(flags, ERR_FLAG_STRING);
+
+ // The error queue is now empty for the next iteration.
+ EXPECT_EQ(0u, ERR_get_error());
+ }
+
+ // Test a case where the error queue wraps around. The first set of errors
+ // will all be discarded, but result in wrapping the list around.
+ ERR_clear_error();
+ for (unsigned i = 0; i < ERR_NUM_ERRORS / 2; i++) {
+ ERR_put_error(0, 0 /* unused */, 0, "invalid", 0);
+ }
+ for (unsigned i = 1; i < ERR_NUM_ERRORS; i++) {
+ ERR_put_error(i, 0 /* unused */, i, "test", i);
+ }
+ saved.reset(ERR_save_state());
+
+ // The state may be restored, both over an empty and non-empty state. Pop one
+ // error off so the first iteration is tested to not be a no-op.
+ ERR_get_error();
+ for (int i = 0; i < 2; i++) {
+ SCOPED_TRACE(i);
+ ERR_restore_state(saved.get());
+ for (int j = 1; j < ERR_NUM_ERRORS; j++) {
+ SCOPED_TRACE(j);
+ packed_error = ERR_get_error_line_data(&file, &line, &data, &flags);
+ EXPECT_EQ(ERR_GET_LIB(packed_error), j);
+ EXPECT_EQ(ERR_GET_REASON(packed_error), j);
+ EXPECT_STREQ("test", file);
+ EXPECT_EQ(line, j);
+ }
+ // The error queue is now empty for the next iteration.
+ EXPECT_EQ(0u, ERR_get_error());
+ }
+}
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