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skia2/tests/SkStringViewTest.cpp
John Stiles 9ed782c1de Revert "Use native std::string_view." 
This reverts commit 64c971350e.

Reason for revert: breaks 
Housekeeper-PerCommit-CreateDockerImage_Skia_Release

https://status.skia.org/logs/7PAT8xw23VsUyx4oJgZZ/1327ba91-d03a-4e98-b1dd-0dedb401333b

"<string_view> not found"

Original change's description:
> Use native std::string_view.
>
> We also used some string_view functionality from C++20/23. These have
> been replaced with free functions with the same name.
>
> Change-Id: I3bf40f99aeb500495f344fd8c6872619267d42be
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/500897
> Reviewed-by: Herb Derby <herb@google.com>
> Auto-Submit: John Stiles <johnstiles@google.com>
> Reviewed-by: Brian Osman <brianosman@google.com>
> Commit-Queue: John Stiles <johnstiles@google.com>

Change-Id: I3712eddc8ad49ad38d31ca5bf008260e251bdbd7
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/501396
Auto-Submit: John Stiles <johnstiles@google.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
2022-01-27 20:38:39 +00:00

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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 "include/core/SkStringView.h"
#include "tests/Test.h"
DEF_TEST(SkStringViewConstructors, r) {
skstd::string_view empty;
REPORTER_ASSERT(r, empty.data() == nullptr);
REPORTER_ASSERT(r, empty.length() == 0);
const char* str = "Hello, World!";
skstd::string_view helloWorld(str);
REPORTER_ASSERT(r, helloWorld.data() == str);
REPORTER_ASSERT(r, helloWorld.length() == strlen(str));
skstd::string_view hello(str, 5);
REPORTER_ASSERT(r, hello.data() == str);
REPORTER_ASSERT(r, hello.length() == 5);
skstd::string_view copy(hello);
REPORTER_ASSERT(r, copy.data() == str);
REPORTER_ASSERT(r, copy.length() == 5);
copy = helloWorld;
REPORTER_ASSERT(r, copy.data() == str);
REPORTER_ASSERT(r, copy.length() == strlen(str));
}
DEF_TEST(SkStringViewBasics, r) {
skstd::string_view empty("");
REPORTER_ASSERT(r, empty.empty());
REPORTER_ASSERT(r, !empty.starts_with('x'));
REPORTER_ASSERT(r, !empty.ends_with('x'));
REPORTER_ASSERT(r, !empty.starts_with("x"));
REPORTER_ASSERT(r, !empty.ends_with("x"));
REPORTER_ASSERT(r, empty.starts_with(""));
REPORTER_ASSERT(r, empty.ends_with(""));
skstd::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, xyz.starts_with('x'));
REPORTER_ASSERT(r, !xyz.starts_with('y'));
REPORTER_ASSERT(r, xyz.ends_with('z'));
REPORTER_ASSERT(r, !xyz.ends_with('y'));
REPORTER_ASSERT(r, xyz.starts_with(""));
REPORTER_ASSERT(r, xyz.ends_with(""));
REPORTER_ASSERT(r, xyz.starts_with("x"));
REPORTER_ASSERT(r, xyz.ends_with("z"));
REPORTER_ASSERT(r, !xyz.starts_with("xa"));
REPORTER_ASSERT(r, !xyz.ends_with("az"));
REPORTER_ASSERT(r, xyz.starts_with("xy"));
REPORTER_ASSERT(r, xyz.ends_with("yz"));
REPORTER_ASSERT(r, xyz.starts_with("xyz"));
REPORTER_ASSERT(r, xyz.ends_with("xyz"));
REPORTER_ASSERT(r, !xyz.starts_with("wxyz"));
REPORTER_ASSERT(r, !xyz.ends_with("wxyz"));
xyz.swap(empty);
REPORTER_ASSERT(r, xyz == "");
REPORTER_ASSERT(r, empty == "xyz");
}
DEF_TEST(SkStringViewIterator, r) {
skstd::string_view str("abc");
skstd::string_view::iterator iter = str.begin();
REPORTER_ASSERT(r, *(iter++) == 'a');
REPORTER_ASSERT(r, *(iter++) == 'b');
REPORTER_ASSERT(r, *(iter++) == 'c');
REPORTER_ASSERT(r, iter == str.end());
REPORTER_ASSERT(r, *(--iter) == 'c');
REPORTER_ASSERT(r, *(--iter) == 'b');
REPORTER_ASSERT(r, *(--iter) == 'a');
REPORTER_ASSERT(r, iter == str.begin());
skstd::string_view empty;
REPORTER_ASSERT(r, empty.begin() == empty.end());
}
DEF_TEST(SkStringViewOperators, r) {
skstd::string_view empty;
REPORTER_ASSERT(r, empty == empty);
REPORTER_ASSERT(r, empty == "");
REPORTER_ASSERT(r, "" == empty);
REPORTER_ASSERT(r, !(empty != ""));
skstd::string_view str("abc");
REPORTER_ASSERT(r, str == str);
REPORTER_ASSERT(r, str == "abc");
REPORTER_ASSERT(r, "abc" == str);
REPORTER_ASSERT(r, str != "");
REPORTER_ASSERT(r, "" != str);
REPORTER_ASSERT(r, str != "abcd");
REPORTER_ASSERT(r, "abcd" != str);
skstd::string_view str2("abcd");
REPORTER_ASSERT(r, str < str2);
REPORTER_ASSERT(r, str <= str2);
REPORTER_ASSERT(r, str <= str);
REPORTER_ASSERT(r, str2 > str);
REPORTER_ASSERT(r, str2 >= str);
REPORTER_ASSERT(r, str >= str);
REPORTER_ASSERT(r, !(str2 < str));
REPORTER_ASSERT(r, !(str < str));
REPORTER_ASSERT(r, !(str2 <= str));
REPORTER_ASSERT(r, !(str > str2));
REPORTER_ASSERT(r, !(str > str));
REPORTER_ASSERT(r, !(str >= str2));
REPORTER_ASSERT(r, str < "b");
REPORTER_ASSERT(r, str <= "b");
REPORTER_ASSERT(r, str <= str);
REPORTER_ASSERT(r, "b" > str);
REPORTER_ASSERT(r, "b" >= str);
REPORTER_ASSERT(r, str >= str);
REPORTER_ASSERT(r, !("b" < str));
REPORTER_ASSERT(r, !(str < str));
REPORTER_ASSERT(r, !("b" <= str));
REPORTER_ASSERT(r, !(str > "b"));
REPORTER_ASSERT(r, !(str > str));
REPORTER_ASSERT(r, !(str >= "b"));
}
DEF_TEST(SkStringViewSubstr, r) {
skstd::string_view xyz("xyz");
REPORTER_ASSERT(r, xyz.substr() == xyz);
REPORTER_ASSERT(r, xyz.substr(0, 1) == "x");
REPORTER_ASSERT(r, xyz.substr(0, 2) == "xy");
REPORTER_ASSERT(r, xyz.substr(0, 3) == "xyz");
REPORTER_ASSERT(r, xyz.substr(0, 4) == "xyz");
REPORTER_ASSERT(r, xyz.substr(1) == "yz");
REPORTER_ASSERT(r, xyz.substr(1, 1) == "y");
REPORTER_ASSERT(r, xyz.substr(1, 2) == "yz");
REPORTER_ASSERT(r, xyz.substr(1, 3) == "yz");
REPORTER_ASSERT(r, xyz.substr(2) == "z");
REPORTER_ASSERT(r, xyz.substr(2, 1) == "z");
REPORTER_ASSERT(r, xyz.substr(2, 2) == "z");
REPORTER_ASSERT(r, xyz.substr(0, 0).empty());
REPORTER_ASSERT(r, xyz.substr(1, 0).empty());
REPORTER_ASSERT(r, xyz.substr(2, 0).empty());
REPORTER_ASSERT(r, xyz.substr(3, 0).empty());
REPORTER_ASSERT(r, xyz.substr(3).empty());
REPORTER_ASSERT(r, xyz.substr(4).empty());
}
DEF_TEST(SkStringViewFind, r) {
REPORTER_ASSERT(r, skstd::string_view("abcdef").find("abcdef") == 0);
REPORTER_ASSERT(r, skstd::string_view("abcdef").find("abcdefg") == skstd::string_view::npos);
REPORTER_ASSERT(r, skstd::string_view("abcdef").find("") == 0);
REPORTER_ASSERT(r, skstd::string_view("").find("") == 0);
REPORTER_ASSERT(r, skstd::string_view("").find("a") == skstd::string_view::npos);
REPORTER_ASSERT(r, skstd::string_view("abcdef").find("b") == 1);
REPORTER_ASSERT(r, skstd::string_view("abcdef").find("f") == 5);
REPORTER_ASSERT(r, skstd::string_view("abcdef").find("q") == skstd::string_view::npos);
REPORTER_ASSERT(r, skstd::string_view("abcdef").find("bcd") == 1);
REPORTER_ASSERT(r, skstd::string_view("abcdef").find("bcd", 2) == skstd::string_view::npos);
REPORTER_ASSERT(r, skstd::string_view("abcdef").find("bce") == skstd::string_view::npos);
REPORTER_ASSERT(r, skstd::string_view("ttttest1tttest2tttest3").find("test") == 3);
REPORTER_ASSERT(r, skstd::string_view("ttttest1tttest2tttest3").find("test", 1) == 3);
REPORTER_ASSERT(r, skstd::string_view("ttttest1tttest2tttest3").find("test", 3) == 3);
REPORTER_ASSERT(r, skstd::string_view("ttttest1tttest2tttest3").find("test", 4) == 10);
REPORTER_ASSERT(r, skstd::string_view("ttttest1tttest2tttest3").find("test2") == 10);
REPORTER_ASSERT(r, skstd::string_view("ttttest1tttest2tttest3").find("test3") == 17);
REPORTER_ASSERT(r, skstd::string_view("ttttest1tttest2tttest3").contains("test"));
REPORTER_ASSERT(r, skstd::string_view("ttttest1tttest2tttest3").contains("test3"));
REPORTER_ASSERT(r, !skstd::string_view("ttttest1tttest2tttest3").contains("test4"));
REPORTER_ASSERT(r, skstd::string_view("").contains(""));
REPORTER_ASSERT(r, !skstd::string_view("").contains("a"));
REPORTER_ASSERT(r, skstd::string_view("abcabcd").contains("abcd"));
REPORTER_ASSERT(r, skstd::string_view("abc").contains(""));
REPORTER_ASSERT(r, skstd::string_view("abc").contains("a"));
REPORTER_ASSERT(r, skstd::string_view("abc").contains("b"));
REPORTER_ASSERT(r, skstd::string_view("abc").contains("c"));
REPORTER_ASSERT(r, skstd::string_view("abc").contains("ab"));
REPORTER_ASSERT(r, skstd::string_view("abc").contains("bc"));
REPORTER_ASSERT(r, !skstd::string_view("abc").contains("ac"));
REPORTER_ASSERT(r, !skstd::string_view("abc").contains("cb"));
REPORTER_ASSERT(r, !skstd::string_view("abc").contains("abcd"));
}
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