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Add snapbox pattern matching on check_file_contains

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This is helpful for matching patterns within a larger file. The error
message isn't quite as good, since it doesn't explicitly say "pattern
not found", but I think you can figure it out from the context.
This commit is contained in:
Eric Huss 2025-08-26 15:47:18 -07:00
parent d071d127ef
commit 9b5e5e7c0f
1 changed files with 3 additions and 5 deletions
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8
tests/testsuite/book_test.rs
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@ -152,7 +152,7 @@ impl BookTest {
self self
} }
/// Checks that the given file contains the given string somewhere. /// Checks that the given file contains the given [`snapbox::Assert`] pattern somewhere.
/// ///
/// The path can use glob-style wildcards, but it must match only a single file. /// The path can use glob-style wildcards, but it must match only a single file.
#[track_caller] #[track_caller]
@ -162,10 +162,8 @@ impl BookTest {
} }
let path = glob_one(&self.dir, path_pattern); let path = glob_one(&self.dir, path_pattern);
let actual = read_to_string(&path); let actual = read_to_string(&path);
assert!( let expected = format!("...\n[..]{expected}[..]\n...\n");
actual.contains(expected), self.assert.eq(actual, expected);
"Did not find {expected:?} in {path:?}\n\n{actual}",
);
self self
} }