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lib.strings: init splitStringBy (#385643)

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Pol Dellaiera 2025-04-23 04:51:38 +00:00 • committed by GitHub
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95
lib/tests/misc.nix
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@ -631,6 +631,101 @@ runTests {
];
};
testSplitStringBySimpleDelimiter = {
expr = strings.splitStringBy (
prev: curr:
builtins.elem curr [
"."
"-"
]
) false "foo.bar-baz";
expected = [
"foo"
"bar"
"baz"
];
};
testSplitStringByLeadingDelimiter = {
expr = strings.splitStringBy (prev: curr: builtins.elem curr [ "." ]) false ".foo.bar.baz";
expected = [
""
"foo"
"bar"
"baz"
];
};
testSplitStringByTrailingDelimiter = {
expr = strings.splitStringBy (prev: curr: builtins.elem curr [ "." ]) false "foo.bar.baz.";
expected = [
"foo"
"bar"
"baz"
""
];
};
testSplitStringByMultipleConsecutiveDelimiters = {
expr = strings.splitStringBy (prev: curr: builtins.elem curr [ "." ]) false "foo...bar";
expected = [
"foo"
""
""
"bar"
];
};
testSplitStringByKeepingSplitChar = {
expr = strings.splitStringBy (prev: curr: builtins.elem curr [ "." ]) true "foo.bar.baz";
expected = [
"foo"
".bar"
".baz"
];
};
testSplitStringByCaseTransition = {
expr = strings.splitStringBy (
prev: curr: builtins.match "[a-z]" prev != null && builtins.match "[A-Z]" curr != null
) true "fooBarBaz";
expected = [
"foo"
"Bar"
"Baz"
];
};
testSplitStringByEmptyString = {
expr = strings.splitStringBy (prev: curr: builtins.elem curr [ "." ]) false "";
expected = [ "" ];
};
testSplitStringByComplexPredicate = {
expr = strings.splitStringBy (
prev: curr:
prev != ""
&& curr != ""
&& builtins.match "[0-9]" prev != null
&& builtins.match "[a-z]" curr != null
) true "123abc456def";
expected = [
"123"
"abc456"
"def"
];
};
testSplitStringByUpperCaseStart = {
expr = strings.splitStringBy (prev: curr: builtins.match "[A-Z]" curr != null) true "FooBarBaz";
expected = [
""
"Foo"
"Bar"
"Baz"
];
};
testEscapeShellArg = {
expr = strings.escapeShellArg "esc'ape\nme";
expected = "'esc'\\''ape\nme'";