/*!
This module contains *integration* tests. Their purpose is to test the CLI
interface. Namely, that passing a flag does what it says on the tin.

Tests for more fine grained behavior (like the search or the globber) should be
unit tests in their respective modules.
*/

#![allow(dead_code, unused_imports)]

use std::process::Command;

use workdir::WorkDir;

mod hay;
mod workdir;

macro_rules! sherlock {
    ($name:ident, $fun:expr) => {
        sherlock!($name, "Sherlock", $fun);
    };
    ($name:ident, $query:expr, $fun:expr) => {
        sherlock!($name, $query, "sherlock", $fun);
    };
    ($name:ident, $query:expr, $path:expr, $fun:expr) => {
        #[test]
        fn $name() {
            let wd = WorkDir::new(stringify!($name));
            wd.create("sherlock", hay::SHERLOCK);
            let mut cmd = wd.command();
            cmd.arg($query).arg($path);
            $fun(wd, cmd);
        }
    };
}

sherlock!(single_file, |wd: WorkDir, mut cmd| {
    let lines: String = wd.stdout(&mut cmd);
    let expected = "\
For the Doctor Watsons of this world, as opposed to the Sherlock
be, to a very large extent, the result of luck. Sherlock Holmes
";
    assert_eq!(lines, expected);
});

sherlock!(dir, "Sherlock", ".", |wd: WorkDir, mut cmd| {
    let lines: String = wd.stdout(&mut cmd);
    let expected = "\
sherlock:For the Doctor Watsons of this world, as opposed to the Sherlock
sherlock:be, to a very large extent, the result of luck. Sherlock Holmes
";
    assert_eq!(lines, expected);
});

sherlock!(line_numbers, |wd: WorkDir, mut cmd: Command| {
    cmd.arg("-n");
    let lines: String = wd.stdout(&mut cmd);
    let expected = "\
1:For the Doctor Watsons of this world, as opposed to the Sherlock
3:be, to a very large extent, the result of luck. Sherlock Holmes
";
    assert_eq!(lines, expected);
});

sherlock!(columns, |wd: WorkDir, mut cmd: Command| {
    cmd.arg("--column");
    let lines: String = wd.stdout(&mut cmd);
    let expected = "\
57:For the Doctor Watsons of this world, as opposed to the Sherlock
49:be, to a very large extent, the result of luck. Sherlock Holmes
";
    assert_eq!(lines, expected);
});

sherlock!(with_filename, |wd: WorkDir, mut cmd: Command| {
    cmd.arg("-H");
    let lines: String = wd.stdout(&mut cmd);
    let expected = "\
sherlock:For the Doctor Watsons of this world, as opposed to the Sherlock
sherlock:be, to a very large extent, the result of luck. Sherlock Holmes
";
    assert_eq!(lines, expected);
});

sherlock!(with_heading, |wd: WorkDir, mut cmd: Command| {
    // This forces the issue since --with-filename is disabled by default
    // when searching one fil.e
    cmd.arg("--with-filename").arg("--heading");
    let lines: String = wd.stdout(&mut cmd);
    let expected = "\
sherlock
For the Doctor Watsons of this world, as opposed to the Sherlock
be, to a very large extent, the result of luck. Sherlock Holmes
";
    assert_eq!(lines, expected);
});

sherlock!(with_heading_default, "Sherlock", ".",
|wd: WorkDir, mut cmd: Command| {
    // Search two or more and get --with-filename enabled by default.
    // Use -j1 to get deterministic results.
    wd.create("foo", "Sherlock Holmes lives on Baker Street.");
    cmd.arg("-j1").arg("--heading");
    let lines: String = wd.stdout(&mut cmd);
    let expected1 = "\
foo
Sherlock Holmes lives on Baker Street.

sherlock
For the Doctor Watsons of this world, as opposed to the Sherlock
be, to a very large extent, the result of luck. Sherlock Holmes
";
    let expected2 = "\
sherlock
For the Doctor Watsons of this world, as opposed to the Sherlock
be, to a very large extent, the result of luck. Sherlock Holmes

foo
Sherlock Holmes lives on Baker Street.
";
    assert!(lines == expected1 || lines == expected2);
});

sherlock!(inverted, |wd: WorkDir, mut cmd: Command| {
    cmd.arg("-v");
    let lines: String = wd.stdout(&mut cmd);
    let expected = "\
Holmeses, success in the province of detective work must always
can extract a clew from a wisp of straw or a flake of cigar ash;
but Doctor Watson has to have it taken out for him and dusted,
and exhibited clearly, with a label attached.
";
    assert_eq!(lines, expected);
});

sherlock!(inverted_line_numbers, |wd: WorkDir, mut cmd: Command| {
    cmd.arg("-n").arg("-v");
    let lines: String = wd.stdout(&mut cmd);
    let expected = "\
2:Holmeses, success in the province of detective work must always
4:can extract a clew from a wisp of straw or a flake of cigar ash;
5:but Doctor Watson has to have it taken out for him and dusted,
6:and exhibited clearly, with a label attached.
";
    assert_eq!(lines, expected);
});

sherlock!(case_insensitive, "sherlock", |wd: WorkDir, mut cmd: Command| {
    cmd.arg("-i");
    let lines: String = wd.stdout(&mut cmd);
    let expected = "\
For the Doctor Watsons of this world, as opposed to the Sherlock
be, to a very large extent, the result of luck. Sherlock Holmes
";
    assert_eq!(lines, expected);
});

sherlock!(word, "as", |wd: WorkDir, mut cmd: Command| {
    cmd.arg("-w");
    let lines: String = wd.stdout(&mut cmd);
    let expected = "\
For the Doctor Watsons of this world, as opposed to the Sherlock
";
    assert_eq!(lines, expected);
});

sherlock!(literal, "()", "file", |wd: WorkDir, mut cmd: Command| {
    wd.create("file", "blib\n()\nblab\n");
    cmd.arg("-F");
    let lines: String = wd.stdout(&mut cmd);
    assert_eq!(lines, "()\n");
});

sherlock!(quiet, |wd: WorkDir, mut cmd: Command| {
    cmd.arg("-q");
    let lines: String = wd.stdout(&mut cmd);
    assert!(lines.is_empty());
});

sherlock!(replace, |wd: WorkDir, mut cmd: Command| {
    cmd.arg("-r").arg("FooBar");
    let lines: String = wd.stdout(&mut cmd);
    let expected = "\
For the Doctor Watsons of this world, as opposed to the FooBar
be, to a very large extent, the result of luck. FooBar Holmes
";
    assert_eq!(lines, expected);
});

sherlock!(replace_groups, "([A-Z][a-z]+) ([A-Z][a-z]+)",
|wd: WorkDir, mut cmd: Command| {
    cmd.arg("-r").arg("$2, $1");
    let lines: String = wd.stdout(&mut cmd);
    let expected = "\
For the Watsons, Doctor of this world, as opposed to the Sherlock
be, to a very large extent, the result of luck. Holmes, Sherlock
but Watson, Doctor has to have it taken out for him and dusted,
";
    assert_eq!(lines, expected);
});

sherlock!(replace_named_groups, "(?P<first>[A-Z][a-z]+) (?P<last>[A-Z][a-z]+)",
|wd: WorkDir, mut cmd: Command| {
    cmd.arg("-r").arg("$last, $first");
    let lines: String = wd.stdout(&mut cmd);
    let expected = "\
For the Watsons, Doctor of this world, as opposed to the Sherlock
be, to a very large extent, the result of luck. Holmes, Sherlock
but Watson, Doctor has to have it taken out for him and dusted,
";
    assert_eq!(lines, expected);
});

sherlock!(file_types, "Sherlock", ".", |wd: WorkDir, mut cmd: Command| {
    wd.create("file.py", "Sherlock");
    wd.create("file.rs", "Sherlock");
    cmd.arg("-t").arg("rust");
    let lines: String = wd.stdout(&mut cmd);
    assert_eq!(lines, "file.rs:Sherlock\n");
});

sherlock!(file_types_all, "Sherlock", ".", |wd: WorkDir, mut cmd: Command| {
    wd.create("file.py", "Sherlock");
    cmd.arg("-t").arg("all");
    let lines: String = wd.stdout(&mut cmd);
    assert_eq!(lines, "file.py:Sherlock\n");
});

sherlock!(file_types_negate, "Sherlock", ".", |wd: WorkDir, mut cmd: Command| {
    wd.remove("sherlock");
    wd.create("file.py", "Sherlock");
    wd.create("file.rs", "Sherlock");
    cmd.arg("-T").arg("rust");
    let lines: String = wd.stdout(&mut cmd);
    assert_eq!(lines, "file.py:Sherlock\n");
});

sherlock!(file_types_negate_all, "Sherlock", ".",
|wd: WorkDir, mut cmd: Command| {
    wd.create("file.py", "Sherlock");
    cmd.arg("-T").arg("all");

    let lines: String = wd.stdout(&mut cmd);
    assert_eq!(lines, "\
sherlock:For the Doctor Watsons of this world, as opposed to the Sherlock
sherlock:be, to a very large extent, the result of luck. Sherlock Holmes
");
});

sherlock!(file_type_clear, "Sherlock", ".", |wd: WorkDir, mut cmd: Command| {
    wd.create("file.py", "Sherlock");
    wd.create("file.rs", "Sherlock");
    cmd.arg("--type-clear").arg("rust").arg("-t").arg("rust");
    wd.assert_err(&mut cmd);
});

sherlock!(file_type_add, "Sherlock", ".", |wd: WorkDir, mut cmd: Command| {
    wd.create("file.py", "Sherlock");
    wd.create("file.rs", "Sherlock");
    wd.create("file.wat", "Sherlock");
    cmd.arg("--type-add").arg("wat:*.wat").arg("-t").arg("wat");
    let lines: String = wd.stdout(&mut cmd);
    assert_eq!(lines, "file.wat:Sherlock\n");
});

sherlock!(glob, "Sherlock", ".", |wd: WorkDir, mut cmd: Command| {
    wd.create("file.py", "Sherlock");
    wd.create("file.rs", "Sherlock");
    cmd.arg("-g").arg("*.rs");
    let lines: String = wd.stdout(&mut cmd);
    assert_eq!(lines, "file.rs:Sherlock\n");
});

sherlock!(glob_negate, "Sherlock", ".", |wd: WorkDir, mut cmd: Command| {
    wd.remove("sherlock");
    wd.create("file.py", "Sherlock");
    wd.create("file.rs", "Sherlock");
    cmd.arg("-g").arg("!*.rs");
    let lines: String = wd.stdout(&mut cmd);
    assert_eq!(lines, "file.py:Sherlock\n");
});

sherlock!(after_context, |wd: WorkDir, mut cmd: Command| {
    cmd.arg("-A").arg("1");
    let lines: String = wd.stdout(&mut cmd);
    let expected = "\
For the Doctor Watsons of this world, as opposed to the Sherlock
Holmeses, success in the province of detective work must always
be, to a very large extent, the result of luck. Sherlock Holmes
can extract a clew from a wisp of straw or a flake of cigar ash;
";
    assert_eq!(lines, expected);
});

sherlock!(after_context_line_numbers, |wd: WorkDir, mut cmd: Command| {
    cmd.arg("-A").arg("1").arg("-n");
    let lines: String = wd.stdout(&mut cmd);
    let expected = "\
1:For the Doctor Watsons of this world, as opposed to the Sherlock
2-Holmeses, success in the province of detective work must always
3:be, to a very large extent, the result of luck. Sherlock Holmes
4-can extract a clew from a wisp of straw or a flake of cigar ash;
";
    assert_eq!(lines, expected);
});

sherlock!(before_context, |wd: WorkDir, mut cmd: Command| {
    cmd.arg("-B").arg("1");
    let lines: String = wd.stdout(&mut cmd);
    let expected = "\
For the Doctor Watsons of this world, as opposed to the Sherlock
Holmeses, success in the province of detective work must always
be, to a very large extent, the result of luck. Sherlock Holmes
";
    assert_eq!(lines, expected);
});

sherlock!(before_context_line_numbers, |wd: WorkDir, mut cmd: Command| {
    cmd.arg("-B").arg("1").arg("-n");
    let lines: String = wd.stdout(&mut cmd);
    let expected = "\
1:For the Doctor Watsons of this world, as opposed to the Sherlock
2-Holmeses, success in the province of detective work must always
3:be, to a very large extent, the result of luck. Sherlock Holmes
";
    assert_eq!(lines, expected);
});

sherlock!(context, "world|attached", |wd: WorkDir, mut cmd: Command| {
    cmd.arg("-C").arg("1");
    let lines: String = wd.stdout(&mut cmd);
    let expected = "\
For the Doctor Watsons of this world, as opposed to the Sherlock
Holmeses, success in the province of detective work must always
--
but Doctor Watson has to have it taken out for him and dusted,
and exhibited clearly, with a label attached.
";
    assert_eq!(lines, expected);
});

sherlock!(context_line_numbers, "world|attached",
|wd: WorkDir, mut cmd: Command| {
    cmd.arg("-C").arg("1").arg("-n");
    let lines: String = wd.stdout(&mut cmd);
    let expected = "\
1:For the Doctor Watsons of this world, as opposed to the Sherlock
2-Holmeses, success in the province of detective work must always
--
5-but Doctor Watson has to have it taken out for him and dusted,
6:and exhibited clearly, with a label attached.
";
    assert_eq!(lines, expected);
});

sherlock!(ignore_hidden, "Sherlock", ".", |wd: WorkDir, mut cmd: Command| {
    wd.remove("sherlock");
    wd.create(".sherlock", hay::SHERLOCK);
    wd.assert_err(&mut cmd);
});

sherlock!(no_ignore_hidden, "Sherlock", ".", |wd: WorkDir, mut cmd: Command| {
    wd.remove("sherlock");
    wd.create(".sherlock", hay::SHERLOCK);

    cmd.arg("--hidden");
    let lines: String = wd.stdout(&mut cmd);
    let expected = "\
.sherlock:For the Doctor Watsons of this world, as opposed to the Sherlock
.sherlock:be, to a very large extent, the result of luck. Sherlock Holmes
";
    assert_eq!(lines, expected);
});

sherlock!(ignore_git, "Sherlock", ".", |wd: WorkDir, mut cmd: Command| {
    wd.create(".gitignore", "sherlock\n");
    wd.assert_err(&mut cmd);
});

sherlock!(ignore_ripgrep, "Sherlock", ".", |wd: WorkDir, mut cmd: Command| {
    wd.create(".rgignore", "sherlock\n");
    wd.assert_err(&mut cmd);
});

sherlock!(no_ignore, "Sherlock", ".", |wd: WorkDir, mut cmd: Command| {
    wd.create(".gitignore", "sherlock\n");
    cmd.arg("--no-ignore");
    let lines: String = wd.stdout(&mut cmd);
    let expected = "\
sherlock:For the Doctor Watsons of this world, as opposed to the Sherlock
sherlock:be, to a very large extent, the result of luck. Sherlock Holmes
";
    assert_eq!(lines, expected);
});

sherlock!(ignore_git_parent, "Sherlock", ".", |wd: WorkDir, mut cmd: Command| {
    wd.remove("sherlock");
    wd.create(".gitignore", "sherlock\n");
    wd.create_dir(".git");
    wd.create_dir("foo");
    wd.create("foo/sherlock", hay::SHERLOCK);
    // Even though we search in foo/, which has no .gitignore, ripgrep will
    // search parent directories and respect the gitignore files found.
    cmd.current_dir(wd.path().join("foo"));
    wd.assert_err(&mut cmd);
});

sherlock!(ignore_git_parent_stop, "Sherlock", ".",
|wd: WorkDir, mut cmd: Command| {
    // This tests that searching parent directories for .gitignore files stops
    // after it sees a .git directory. To test this, we create this directory
    // hierarchy:
    //
    // .gitignore (contains `sherlock`)
    // foo/
    //   .git
    //   bar/
    //      sherlock
    //
    // And we perform the search inside `foo/bar/`. ripgrep will stop looking
    // for .gitignore files after it sees `foo/.git/`, and therefore not
    // respect the top-level `.gitignore` containing `sherlock`.
    wd.remove("sherlock");
    wd.create(".gitignore", "sherlock\n");
    wd.create_dir("foo");
    wd.create_dir("foo/.git");
    wd.create_dir("foo/bar");
    wd.create("foo/bar/sherlock", hay::SHERLOCK);
    cmd.current_dir(wd.path().join("foo").join("bar"));

    let lines: String = wd.stdout(&mut cmd);
    let expected = "\
sherlock:For the Doctor Watsons of this world, as opposed to the Sherlock
sherlock:be, to a very large extent, the result of luck. Sherlock Holmes
";
    assert_eq!(lines, expected);
});

sherlock!(ignore_ripgrep_parent_no_stop, "Sherlock", ".",
|wd: WorkDir, mut cmd: Command| {
    // This is like the `ignore_git_parent_stop` test, except it checks that
    // ripgrep *doesn't* stop checking for .rgignore files.
    wd.remove("sherlock");
    wd.create(".rgignore", "sherlock\n");
    wd.create_dir("foo");
    wd.create_dir("foo/.git");
    wd.create_dir("foo/bar");
    wd.create("foo/bar/sherlock", hay::SHERLOCK);
    cmd.current_dir(wd.path().join("foo").join("bar"));
    // The top-level .rgignore applies.
    wd.assert_err(&mut cmd);
});

sherlock!(no_parent_ignore_git, "Sherlock", ".",
|wd: WorkDir, mut cmd: Command| {
    // Set up a directory hierarchy like this:
    //
    // .gitignore
    // foo/
    //   .gitignore
    //   sherlock
    //   watson
    //
    // Where `.gitignore` contains `sherlock` and `foo/.gitignore` contains
    // `watson`.
    //
    // Now *do the search* from the foo directory. By default, ripgrep will
    // search parent directories for .gitignore files. The --no-ignore-parent
    // flag should prevent that. At the same time, the `foo/.gitignore` file
    // will still be respected (since the search is happening in `foo/`).
    //
    // In other words, we should only see results from `sherlock`, not from
    // `watson`.
    wd.remove("sherlock");
    wd.create(".gitignore", "sherlock\n");
    wd.create_dir("foo");
    wd.create("foo/.gitignore", "watson\n");
    wd.create("foo/sherlock", hay::SHERLOCK);
    wd.create("foo/watson", hay::SHERLOCK);
    cmd.current_dir(wd.path().join("foo"));
    cmd.arg("--no-ignore-parent");

    let lines: String = wd.stdout(&mut cmd);
    let expected = "\
sherlock:For the Doctor Watsons of this world, as opposed to the Sherlock
sherlock:be, to a very large extent, the result of luck. Sherlock Holmes
";
    assert_eq!(lines, expected);
});

sherlock!(symlink_nofollow, "Sherlock", ".", |wd: WorkDir, mut cmd: Command| {
    wd.remove("sherlock");
    wd.create_dir("foo");
    wd.create_dir("foo/bar");
    wd.link("foo/baz", "foo/bar/baz");
    wd.create_dir("foo/baz");
    wd.create("foo/baz/sherlock", hay::SHERLOCK);
    cmd.current_dir(wd.path().join("foo/bar"));
    wd.assert_err(&mut cmd);
});

sherlock!(symlink_follow, "Sherlock", ".", |wd: WorkDir, mut cmd: Command| {
    wd.remove("sherlock");
    wd.create_dir("foo");
    wd.create_dir("foo/bar");
    wd.create_dir("foo/baz");
    wd.create("foo/baz/sherlock", hay::SHERLOCK);
    wd.link("foo/baz", "foo/bar/baz");
    cmd.arg("-L");
    cmd.current_dir(wd.path().join("foo/bar"));

    let lines: String = wd.stdout(&mut cmd);
    if cfg!(windows) {
        let expected = "\
baz\\sherlock:For the Doctor Watsons of this world, as opposed to the Sherlock
baz\\sherlock:be, to a very large extent, the result of luck. Sherlock Holmes
";
        assert_eq!(lines, expected);
    } else {
        let expected = "\
baz/sherlock:For the Doctor Watsons of this world, as opposed to the Sherlock
baz/sherlock:be, to a very large extent, the result of luck. Sherlock Holmes
";
        assert_eq!(lines, expected);
    }
});

sherlock!(unrestricted1, "Sherlock", ".", |wd: WorkDir, mut cmd: Command| {
    wd.create(".gitignore", "sherlock\n");
    cmd.arg("-u");

    let lines: String = wd.stdout(&mut cmd);
    let expected = "\
sherlock:For the Doctor Watsons of this world, as opposed to the Sherlock
sherlock:be, to a very large extent, the result of luck. Sherlock Holmes
";
    assert_eq!(lines, expected);
});

sherlock!(unrestricted2, "Sherlock", ".", |wd: WorkDir, mut cmd: Command| {
    wd.remove("sherlock");
    wd.create(".sherlock", hay::SHERLOCK);
    cmd.arg("-uu");

    let lines: String = wd.stdout(&mut cmd);
    let expected = "\
.sherlock:For the Doctor Watsons of this world, as opposed to the Sherlock
.sherlock:be, to a very large extent, the result of luck. Sherlock Holmes
";
    assert_eq!(lines, expected);
});

sherlock!(unrestricted3, "foo", ".", |wd: WorkDir, mut cmd: Command| {
    wd.create("file", "foo\x00bar\nfoo\x00baz\n");
    cmd.arg("-uuu");

    let lines: String = wd.stdout(&mut cmd);
    assert_eq!(lines, "file:foo\nfile:foo\n");
});

#[test]
fn binary_nosearch() {
    let wd = WorkDir::new("binary_nosearch");
    wd.create("file", "foo\x00bar\nfoo\x00baz\n");
    let mut cmd = wd.command();
    cmd.arg("foo").arg("file");
    wd.assert_err(&mut cmd);
}

// The following two tests show a discrepancy in search results between
// searching with memory mapped files and stream searching. Stream searching
// uses a heuristic (that GNU grep also uses) where NUL bytes are replaced with
// the EOL terminator, which tends to avoid allocating large amounts of memory
// for really long "lines." The memory map searcher has no need to worry about
// such things, and more than that, it would be pretty hard for it to match
// the semantics of streaming search in this case.
//
// Binary files with lots of NULs aren't really part of the use case of ripgrep
// (or any other grep-like tool for that matter), so we shouldn't feel too bad
// about it.
#[test]
fn binary_search_mmap() {
    let wd = WorkDir::new("binary_search_mmap");
    wd.create("file", "foo\x00bar\nfoo\x00baz\n");
    let mut cmd = wd.command();
    cmd.arg("-a").arg("--mmap").arg("foo").arg("file");
    let lines: String = wd.stdout(&mut cmd);
    assert_eq!(lines, "foo\x00bar\nfoo\x00baz\n");
}

#[test]
fn binary_search_no_mmap() {
    let wd = WorkDir::new("binary_search_no_mmap");
    wd.create("file", "foo\x00bar\nfoo\x00baz\n");
    let mut cmd = wd.command();
    cmd.arg("-a").arg("--no-mmap").arg("foo").arg("file");
    let lines: String = wd.stdout(&mut cmd);
    assert_eq!(lines, "foo\nfoo\n");
}

#[test]
fn files() {
    let wd = WorkDir::new("files");
    wd.create("file", "");
    wd.create_dir("dir");
    wd.create("dir/file", "");

    let mut cmd = wd.command();
    cmd.arg("--files");
    let lines: String = wd.stdout(&mut cmd);
    if cfg!(windows) {
        assert!(lines == "./dir\\file\n./file\n"
                || lines == "./file\n./dir\\file\n");
    } else {
        assert!(lines == "./file\n./dir/file\n"
                || lines == "./dir/file\n./file\n");
    }
}

#[test]
fn type_list() {
    let wd = WorkDir::new("type_list");

    let mut cmd = wd.command();
    cmd.arg("--type-list");
    let lines: String = wd.stdout(&mut cmd);
    // This can change over time, so just make sure we print something.
    assert!(!lines.is_empty());
}