skia2/tests/SkStringViewTest.cpp

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/*
* Copyright 2021 Google LLC.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <string_view>
#include "include/private/SkStringView.h"
#include "tests/Test.h"
DEF_TEST(SkStringViewStartsAndEnds, r) {
std::string_view empty("");
REPORTER_ASSERT(r, empty.empty());
REPORTER_ASSERT(r, !skstd::starts_with(empty, 'x'));
REPORTER_ASSERT(r, !skstd::ends_with(empty, 'x'));
REPORTER_ASSERT(r, !skstd::starts_with(empty, "x"));
REPORTER_ASSERT(r, !skstd::ends_with(empty, "x"));
REPORTER_ASSERT(r, skstd::starts_with(empty, ""));
REPORTER_ASSERT(r, skstd::ends_with(empty, ""));
std::string_view xyz("xyz");
REPORTER_ASSERT(r, !xyz.empty());
REPORTER_ASSERT(r, xyz.front() == 'x');
REPORTER_ASSERT(r, xyz.back() == 'z');
REPORTER_ASSERT(r, xyz.length() == 3);
REPORTER_ASSERT(r, skstd::starts_with(xyz, 'x'));
REPORTER_ASSERT(r, !skstd::starts_with(xyz, 'y'));
REPORTER_ASSERT(r, skstd::ends_with(xyz, 'z'));
REPORTER_ASSERT(r, !skstd::ends_with(xyz, 'y'));
REPORTER_ASSERT(r, skstd::starts_with(xyz, ""));
REPORTER_ASSERT(r, skstd::ends_with(xyz, ""));
REPORTER_ASSERT(r, skstd::starts_with(xyz, "x"));
REPORTER_ASSERT(r, skstd::ends_with(xyz, "z"));
REPORTER_ASSERT(r, !skstd::starts_with(xyz, "xa"));
REPORTER_ASSERT(r, !skstd::ends_with(xyz, "az"));
REPORTER_ASSERT(r, skstd::starts_with(xyz, "xy"));
REPORTER_ASSERT(r, skstd::ends_with(xyz, "yz"));
REPORTER_ASSERT(r, skstd::starts_with(xyz, "xyz"));
REPORTER_ASSERT(r, skstd::ends_with(xyz, "xyz"));
REPORTER_ASSERT(r, !skstd::starts_with(xyz, "wxyz"));
REPORTER_ASSERT(r, !skstd::ends_with(xyz, "wxyz"));
xyz.swap(empty);
REPORTER_ASSERT(r, xyz == "");
REPORTER_ASSERT(r, empty == "xyz");
}
DEF_TEST(SkStringViewContains, r) {
REPORTER_ASSERT(r, skstd::contains("ttttest1tttest2tttest3", "test"));
REPORTER_ASSERT(r, skstd::contains("ttttest1tttest2tttest3", "test3"));
REPORTER_ASSERT(r, !skstd::contains("ttttest1tttest2tttest3", "test4"));
REPORTER_ASSERT(r, skstd::contains("", ""));
REPORTER_ASSERT(r, !skstd::contains("", "a"));
REPORTER_ASSERT(r, skstd::contains("abcabcd", "abcd"));
REPORTER_ASSERT(r, skstd::contains("abc", ""));
REPORTER_ASSERT(r, skstd::contains("abc", "a"));
REPORTER_ASSERT(r, skstd::contains("abc", "b"));
REPORTER_ASSERT(r, skstd::contains("abc", "c"));
REPORTER_ASSERT(r, skstd::contains("abc", "ab"));
REPORTER_ASSERT(r, skstd::contains("abc", "bc"));
REPORTER_ASSERT(r, !skstd::contains("abc", "ac"));
REPORTER_ASSERT(r, !skstd::contains("abc", "cb"));
REPORTER_ASSERT(r, !skstd::contains("abc", "abcd"));
}