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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /js/src/jit-test/tests/warp/string-indexof-is-startswith.js | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/jit-test/tests/warp/string-indexof-is-startswith.js')
-rw-r--r-- | js/src/jit-test/tests/warp/string-indexof-is-startswith.js | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/warp/string-indexof-is-startswith.js b/js/src/jit-test/tests/warp/string-indexof-is-startswith.js new file mode 100644 index 0000000000..1d9f31e38c --- /dev/null +++ b/js/src/jit-test/tests/warp/string-indexof-is-startswith.js @@ -0,0 +1,29 @@ +// |str.indexOf(searchStr) == 0| is compiled as |str.startsWith(searchStr)|. +// |str.indexOf(searchStr) != 0| is compiled as |!str.startsWith(searchStr)|. + +const strings = [ + "", + "a", "b", + "ab", "ba", "ac", "ca", + "aba", "abb", "abc", "aca", +]; + +function StringIndexOf(str, searchStr) { + // Prevent Warp compilation when computing the expected result. + with ({}); + return str.indexOf(searchStr); +} + +for (let str of strings) { + for (let searchStr of strings) { + let startsWith = str.indexOf(searchStr) === 0; + + assertEq(startsWith, str.startsWith(searchStr)); + assertEq(startsWith, StringIndexOf(str, searchStr) === 0); + + let notStartsWith = str.indexOf(searchStr) !== 0; + + assertEq(notStartsWith, !str.startsWith(searchStr)); + assertEq(notStartsWith, StringIndexOf(str, searchStr) !== 0); + } +} |