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standalone posix tests for relative path linking
This commit is contained in:
Pat Tullmann
parent
aa1d2adffc
commit
ca09629bee
2 changed files with 94 additions and 89 deletions
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@ -167,45 +167,6 @@ test "openat smoke test" {
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}
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}
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}
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}
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test "symlink with relative paths" {
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if (native_os == .wasi) return error.SkipZigTest; // Can symlink, but can't change into tmpDir
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var tmp = tmpDir(.{});
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defer tmp.cleanup();
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const target_name = "symlink-target";
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const symlink_name = "symlinker";
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// Restore default CWD at end of test.
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const orig_cwd = try fs.cwd().openDir(".", .{});
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defer orig_cwd.setAsCwd() catch unreachable;
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// Create the target file
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try tmp.dir.writeFile(.{ .sub_path = target_name, .data = "nonsense" });
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// Want to test relative paths, so cd into the tmpdir for this test
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try tmp.dir.setAsCwd();
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if (native_os == .windows) {
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const wtarget_name = try std.unicode.wtf8ToWtf16LeAllocZ(a, target_name);
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const wsymlink_name = try std.unicode.wtf8ToWtf16LeAllocZ(a, symlink_name);
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defer a.free(wtarget_name);
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defer a.free(wsymlink_name);
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std.os.windows.CreateSymbolicLink(tmp.dir.fd, wsymlink_name, wtarget_name, false) catch |err| switch (err) {
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// Symlink requires admin privileges on windows, so this test can legitimately fail.
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error.AccessDenied => return error.SkipZigTest,
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else => return err,
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};
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} else {
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try posix.symlink(target_name, symlink_name);
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}
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var buffer: [fs.max_path_bytes]u8 = undefined;
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const given = try posix.readlink(symlink_name, buffer[0..]);
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try expect(mem.eql(u8, target_name, given));
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}
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test "readlink on Windows" {
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test "readlink on Windows" {
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if (native_os != .windows) return error.SkipZigTest;
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if (native_os != .windows) return error.SkipZigTest;
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@ -220,55 +181,6 @@ fn testReadlink(target_path: []const u8, symlink_path: []const u8) !void {
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try expect(mem.eql(u8, target_path, given));
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try expect(mem.eql(u8, target_path, given));
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}
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}
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test "link with relative paths" {
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if (native_os == .wasi) return error.SkipZigTest; // Can link, but can't change into tmpDir
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if ((builtin.cpu.arch == .riscv32 or builtin.cpu.arch.isLoongArch()) and builtin.os.tag == .linux and !builtin.link_libc) return error.SkipZigTest; // No `fstat()`.
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if (builtin.cpu.arch.isMIPS64()) return error.SkipZigTest; // `nstat.nlink` assertion is failing with LLVM 20+ for unclear reasons.
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switch (native_os) {
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.wasi, .linux, .solaris, .illumos => {},
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else => return error.SkipZigTest,
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}
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var tmp = tmpDir(.{});
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defer tmp.cleanup();
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// Restore default CWD at end of test.
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const orig_cwd = try fs.cwd().openDir(".", .{});
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defer orig_cwd.setAsCwd() catch unreachable;
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const target_name = "link-target";
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const link_name = "newlink";
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try tmp.dir.writeFile(.{ .sub_path = target_name, .data = "example" });
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// Test 1: create the relative link from inside tmp
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try tmp.dir.setAsCwd();
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try posix.link(target_name, link_name);
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// Verify
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const efd = try tmp.dir.openFile(target_name, .{});
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defer efd.close();
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const nfd = try tmp.dir.openFile(link_name, .{});
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defer nfd.close();
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{
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const estat = try posix.fstat(efd.handle);
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const nstat = try posix.fstat(nfd.handle);
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try testing.expectEqual(estat.ino, nstat.ino);
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try testing.expectEqual(@as(@TypeOf(nstat.nlink), 2), nstat.nlink);
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}
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// Test 2: Remove the link and see the stats update
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try posix.unlink(link_name);
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{
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const estat = try posix.fstat(efd.handle);
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try testing.expectEqual(@as(@TypeOf(estat.nlink), 1), estat.nlink);
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}
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}
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test "linkat with different directories" {
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test "linkat with different directories" {
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if ((builtin.cpu.arch == .riscv32 or builtin.cpu.arch.isLoongArch()) and builtin.os.tag == .linux and !builtin.link_libc) return error.SkipZigTest; // No `fstatat()`.
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if ((builtin.cpu.arch == .riscv32 or builtin.cpu.arch.isLoongArch()) and builtin.os.tag == .linux and !builtin.link_libc) return error.SkipZigTest; // No `fstatat()`.
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if (builtin.cpu.arch.isMIPS64()) return error.SkipZigTest; // `nstat.nlink` assertion is failing with LLVM 20+ for unclear reasons.
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if (builtin.cpu.arch.isMIPS64()) return error.SkipZigTest; // `nstat.nlink` assertion is failing with LLVM 20+ for unclear reasons.
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@ -1 +1,94 @@
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pub fn main() !void {}
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// Test relative paths through POSIX APIS. These tests have to change the cwd, so
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// they shouldn't be Zig unit tests.
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const std = @import("std");
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const builtin = @import("builtin");
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pub fn main() !void {
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if (builtin.target.os.tag == .wasi) return; // Can link, but can't change into tmpDir
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var Allocator = std.heap.DebugAllocator(.{}){};
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const a = Allocator.allocator();
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defer std.debug.assert(Allocator.deinit() == .ok);
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var tmp = std.testing.tmpDir(.{});
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defer tmp.cleanup();
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// Want to test relative paths, so cd into the tmpdir for these tests
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try tmp.dir.setAsCwd();
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try test_symlink(a, tmp);
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try test_link(tmp);
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}
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fn test_symlink(a: std.mem.Allocator, tmp: std.testing.TmpDir) !void {
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const target_name = "symlink-target";
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const symlink_name = "symlinker";
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// Create the target file
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try tmp.dir.writeFile(.{ .sub_path = target_name, .data = "nonsense" });
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if (builtin.target.os.tag == .windows) {
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const wtarget_name = try std.unicode.wtf8ToWtf16LeAllocZ(a, target_name);
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const wsymlink_name = try std.unicode.wtf8ToWtf16LeAllocZ(a, symlink_name);
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defer a.free(wtarget_name);
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defer a.free(wsymlink_name);
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std.os.windows.CreateSymbolicLink(tmp.dir.fd, wsymlink_name, wtarget_name, false) catch |err| switch (err) {
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// Symlink requires admin privileges on windows, so this test can legitimately fail.
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error.AccessDenied => return,
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else => return err,
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};
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} else {
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try std.posix.symlink(target_name, symlink_name);
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}
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var buffer: [std.fs.max_path_bytes]u8 = undefined;
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const given = try std.posix.readlink(symlink_name, buffer[0..]);
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try std.testing.expectEqualStrings(target_name, given);
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}
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fn test_link(tmp: std.testing.TmpDir) !void {
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switch (builtin.target.os.tag) {
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.linux, .solaris, .illumos => {},
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else => return,
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}
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if ((builtin.cpu.arch == .riscv32 or builtin.cpu.arch.isLoongArch()) and builtin.target.os.tag == .linux and !builtin.link_libc) {
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return; // No `fstat()`.
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}
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if (builtin.cpu.arch.isMIPS64()) {
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return; // `nstat.nlink` assertion is failing with LLVM 20+ for unclear reasons.
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}
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const target_name = "link-target";
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const link_name = "newlink";
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try tmp.dir.writeFile(.{ .sub_path = target_name, .data = "example" });
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// Test 1: create the relative link from inside tmp
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try std.posix.link(target_name, link_name);
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// Verify
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const efd = try tmp.dir.openFile(target_name, .{});
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defer efd.close();
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const nfd = try tmp.dir.openFile(link_name, .{});
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defer nfd.close();
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{
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const estat = try std.posix.fstat(efd.handle);
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const nstat = try std.posix.fstat(nfd.handle);
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try std.testing.expectEqual(estat.ino, nstat.ino);
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try std.testing.expectEqual(@as(@TypeOf(nstat.nlink), 2), nstat.nlink);
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}
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// Test 2: Remove the link and see the stats update
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try std.posix.unlink(link_name);
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{
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const estat = try std.posix.fstat(efd.handle);
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try std.testing.expectEqual(@as(@TypeOf(estat.nlink), 1), estat.nlink);
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}
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}
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