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file: document dirEntries as no garantee of sorted output

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Some unittests should compare with a sorted array to be
correct.

Signed-off-by: Luís Ferreira <contact@lsferreira.net>
This commit is contained in:
Luís Ferreira 2021-05-31 23:15:22 +01:00 • committed by The Dlang Bot
parent afb382485b
commit 808dca99af
1 changed files with 18 additions and 11 deletions
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29
std/file.d
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@ -2917,6 +2917,8 @@ if (isConvertibleToString!R)
@system unittest
{
import std.algorithm.comparison : equal;
import std.algorithm.sorting : sort;
import std.array : array;
import std.path : buildPath;
auto cwd = getcwd;
@ -2927,9 +2929,9 @@ if (isConvertibleToString!R)
dir.buildPath("a").write(".");
dir.chdir; // step into dir
"b".write(".");
dirEntries(".", SpanMode.shallow).equal(
[".".buildPath("b"), ".".buildPath("a")]
);
assert(dirEntries(".", SpanMode.shallow).array.sort.equal(
[".".buildPath("a"), ".".buildPath("b")]
));
}
@safe unittest
@ -4605,6 +4607,8 @@ enum SpanMode
{
import std.algorithm.comparison : equal;
import std.algorithm.iteration : map;
import std.algorithm.sorting : sort;
import std.array : array;
import std.path : buildPath, relativePath;
auto root = deleteme ~ "root";
@ -4613,19 +4617,19 @@ enum SpanMode
root.buildPath("animals").mkdir;
root.buildPath("animals", "cat").mkdir;
root.buildPath("animals", "dog").mkdir;
root.buildPath("plants").mkdir;
alias removeRoot = (return scope e) => e.relativePath(root);
root.dirEntries(SpanMode.shallow).map!removeRoot.equal(
["plants", "animals"]);
assert(root.dirEntries(SpanMode.depth).map!removeRoot.equal(
[buildPath("animals", "cat"), "animals"]));
root.dirEntries(SpanMode.depth).map!removeRoot.equal(
["plants", "animals/dog", "animals/cat", "animals"]);
assert(root.dirEntries(SpanMode.breadth).map!removeRoot.equal(
["animals", buildPath("animals", "cat")]));
root.dirEntries(SpanMode.breadth).map!removeRoot.equal(
["plants", "animals", "animals/dog", "animals/cat"]);
root.buildPath("plants").mkdir;
assert(root.dirEntries(SpanMode.shallow).array.sort.map!removeRoot.equal(
["animals", "plants"]));
}
private struct DirIteratorImpl
@ -4898,6 +4902,9 @@ public:
directory is traversed. The name of each iterated directory entry
contains the absolute or relative _path (depending on _pathname).
Note: The order of returned directory entries is as it is provided by the
operating system / filesystem, and may not follow any particular sorting.
Params:
path = The directory to iterate over.
If empty, the current directory will be iterated.