Merge branch 'main' into auth

24 files changed, 1099 insertions, 0 deletions

diff --git a/azalea-brigadier/tests/arguments/bool_argument_type_test.rs b/azalea-brigadier/tests/arguments/bool_argument_type_test.rs
new file mode 100755
index 00000000..e69de29b
--- /dev/null
+++ b/azalea-brigadier/tests/arguments/bool_argument_type_test.rs
diff --git a/azalea-brigadier/tests/arguments/double_argument_type_test.rs b/azalea-brigadier/tests/arguments/double_argument_type_test.rs
new file mode 100755
index 00000000..e69de29b
--- /dev/null
+++ b/azalea-brigadier/tests/arguments/double_argument_type_test.rs
diff --git a/azalea-brigadier/tests/arguments/float_argument_type_test.rs b/azalea-brigadier/tests/arguments/float_argument_type_test.rs
new file mode 100755
index 00000000..e69de29b
--- /dev/null
+++ b/azalea-brigadier/tests/arguments/float_argument_type_test.rs
diff --git a/azalea-brigadier/tests/arguments/integer_argument_type_test.rs b/azalea-brigadier/tests/arguments/integer_argument_type_test.rs
new file mode 100755
index 00000000..e69de29b
--- /dev/null
+++ b/azalea-brigadier/tests/arguments/integer_argument_type_test.rs
diff --git a/azalea-brigadier/tests/arguments/long_argument_type_test.rs b/azalea-brigadier/tests/arguments/long_argument_type_test.rs
new file mode 100755
index 00000000..e69de29b
--- /dev/null
+++ b/azalea-brigadier/tests/arguments/long_argument_type_test.rs
diff --git a/azalea-brigadier/tests/arguments/string_argument_type_test.rs b/azalea-brigadier/tests/arguments/string_argument_type_test.rs
new file mode 100755
index 00000000..e69de29b
--- /dev/null
+++ b/azalea-brigadier/tests/arguments/string_argument_type_test.rs
diff --git a/azalea-brigadier/tests/builder/argument_builder_test.rs b/azalea-brigadier/tests/builder/argument_builder_test.rs
new file mode 100755
index 00000000..e570c988
--- /dev/null
+++ b/azalea-brigadier/tests/builder/argument_builder_test.rs
@@ -0,0 +1,75 @@
+use std::rc::Rc;
+
+use crate::{
+    arguments::integer_argument_type::integer,
+    builder::{literal_argument_builder::literal, required_argument_builder::argument},
+};
+
+use super::ArgumentBuilder;
+
+// public class ArgumentBuilderTest {
+//     private TestableArgumentBuilder<Object> builder;
+
+//     @Before
+//     public void setUp() throws Exception {
+//         builder = new TestableArgumentBuilder<>();
+//     }
+
+//     @Test
+//     public void testArguments() throws Exception {
+//         final RequiredArgumentBuilder<Object, ?> argument = argument("bar", integer());
+
+//         builder.then(argument);
+
+//         assertThat(builder.getArguments(), hasSize(1));
+//         assertThat(builder.getArguments(), hasItem((CommandNode<Object>) argument.build()));
+//     }
+
+#[test]
+fn test_arguments() {
+    let mut builder: ArgumentBuilder<()> = literal("foo");
+
+    let argument: ArgumentBuilder<()> = argument("bar", integer());
+    builder.then(argument.clone());
+    assert_eq!(builder.arguments.children.len(), 1);
+    let built_argument = Rc::new(argument.build());
+    assert!(builder
+        .arguments
+        .children
+        .values()
+        .any(|e| *e.borrow() == *built_argument));
+}
+
+//     @Test
+//     public void testRedirect() throws Exception {
+//         final CommandNode<Object> target = mock(CommandNode.class);
+//         builder.redirect(target);
+//         assertThat(builder.getRedirect(), is(target));
+//     }
+
+//     @Test(expected = IllegalStateException.class)
+//     public void testRedirect_withChild() throws Exception {
+//         final CommandNode<Object> target = mock(CommandNode.class);
+//         builder.then(literal("foo"));
+//         builder.redirect(target);
+//     }
+
+//     @Test(expected = IllegalStateException.class)
+//     public void testThen_withRedirect() throws Exception {
+//         final CommandNode<Object> target = mock(CommandNode.class);
+//         builder.redirect(target);
+//         builder.then(literal("foo"));
+//     }
+
+//     private static class TestableArgumentBuilder<S> extends ArgumentBuilder<S, TestableArgumentBuilder<S>> {
+//         @Override
+//         protected TestableArgumentBuilder<S> getThis() {
+//             return this;
+//         }
+
+//         @Override
+//         public CommandNode<S> build() {
+//             return null;
+//         }
+//     }
+// }
diff --git a/azalea-brigadier/tests/builder/literal_argument_builder_test.rs b/azalea-brigadier/tests/builder/literal_argument_builder_test.rs
new file mode 100755
index 00000000..e69de29b
--- /dev/null
+++ b/azalea-brigadier/tests/builder/literal_argument_builder_test.rs
diff --git a/azalea-brigadier/tests/builder/required_argument_builder_test.rs b/azalea-brigadier/tests/builder/required_argument_builder_test.rs
new file mode 100755
index 00000000..e69de29b
--- /dev/null
+++ b/azalea-brigadier/tests/builder/required_argument_builder_test.rs
diff --git a/azalea-brigadier/tests/command_dispatcher_test.rs b/azalea-brigadier/tests/command_dispatcher_test.rs
new file mode 100755
index 00000000..cb33ac73
--- /dev/null
+++ b/azalea-brigadier/tests/command_dispatcher_test.rs
@@ -0,0 +1,410 @@
+use std::rc::Rc;
+
+use azalea_brigadier::{
+    arguments::integer_argument_type::integer,
+    builder::{literal_argument_builder::literal, required_argument_builder::argument},
+    command_dispatcher::CommandDispatcher,
+    context::CommandContext,
+    exceptions::{BuiltInExceptions, CommandSyntaxException},
+    string_reader::StringReader,
+};
+
+#[derive(Debug, PartialEq)]
+struct CommandSource {}
+
+fn input_with_offset(input: &str, offset: usize) -> StringReader {
+    let mut result: StringReader = input.into();
+    result.cursor = offset;
+    result
+}
+
+#[test]
+fn create_and_execute_command() {
+    let mut subject = CommandDispatcher::new();
+    subject.register(literal("foo").executes(|_| 42));
+
+    assert_eq!(
+        subject
+            .execute("foo".into(), Rc::new(CommandSource {}))
+            .unwrap(),
+        42
+    );
+}
+
+#[test]
+fn create_and_execute_offset_command() {
+    let mut subject = CommandDispatcher::new();
+    subject.register(literal("foo").executes(|_| 42));
+
+    assert_eq!(
+        subject
+            .execute(input_with_offset("/foo", 1), Rc::new(CommandSource {}))
+            .unwrap(),
+        42
+    );
+}
+
+#[test]
+fn create_and_merge_commands() {
+    let mut subject = CommandDispatcher::new();
+    subject.register(literal("base").then(literal("foo").executes(|_| 42)));
+    subject.register(literal("base").then(literal("bar").executes(|_| 42)));
+
+    assert_eq!(
+        subject
+            .execute("base foo".into(), Rc::new(CommandSource {}))
+            .unwrap(),
+        42
+    );
+    assert_eq!(
+        subject
+            .execute("base bar".into(), Rc::new(CommandSource {}))
+            .unwrap(),
+        42
+    );
+}
+
+#[test]
+fn execute_unknown_command() {
+    let mut subject = CommandDispatcher::new();
+    subject.register(literal("bar"));
+    subject.register(literal("baz"));
+
+    let execute_result = subject.execute("foo".into(), Rc::new(CommandSource {}));
+
+    let err = execute_result.err().unwrap();
+    match err.type_ {
+        BuiltInExceptions::DispatcherUnknownCommand => {}
+        _ => panic!("Unexpected error"),
+    }
+    assert_eq!(err.cursor().unwrap(), 0);
+}
+
+#[test]
+fn execute_impermissible_command() {
+    let mut subject = CommandDispatcher::new();
+    subject.register(literal("foo").requires(|_| false));
+
+    let execute_result = subject.execute("foo".into(), Rc::new(CommandSource {}));
+
+    let err = execute_result.err().unwrap();
+    match err.type_ {
+        BuiltInExceptions::DispatcherUnknownCommand => {}
+        _ => panic!("Unexpected error"),
+    }
+    assert_eq!(err.cursor().unwrap(), 0);
+}
+
+#[test]
+fn execute_empty_command() {
+    let mut subject = CommandDispatcher::new();
+    subject.register(literal(""));
+
+    let execute_result = subject.execute("".into(), Rc::new(CommandSource {}));
+
+    let err = execute_result.err().unwrap();
+    match err.type_ {
+        BuiltInExceptions::DispatcherUnknownCommand => {}
+        _ => panic!("Unexpected error"),
+    }
+    assert_eq!(err.cursor().unwrap(), 0);
+}
+
+#[test]
+fn execute_unknown_subcommand() {
+    let mut subject = CommandDispatcher::new();
+    subject.register(literal("foo").executes(|_| 42));
+
+    let execute_result = subject.execute("foo bar".into(), Rc::new(CommandSource {}));
+
+    let err = execute_result.err().unwrap();
+    match err.type_ {
+        BuiltInExceptions::DispatcherUnknownArgument => {}
+        _ => panic!("Unexpected error"),
+    }
+    assert_eq!(err.cursor().unwrap(), 4);
+}
+
+#[test]
+fn execute_incorrect_literal() {
+    let mut subject = CommandDispatcher::new();
+    subject.register(literal("foo").executes(|_| 42).then(literal("bar")));
+
+    let execute_result = subject.execute("foo baz".into(), Rc::new(CommandSource {}));
+
+    let err = execute_result.err().unwrap();
+    match err.type_ {
+        BuiltInExceptions::DispatcherUnknownArgument => {}
+        _ => panic!("Unexpected error"),
+    }
+    assert_eq!(err.cursor().unwrap(), 4);
+}
+
+#[test]
+fn execute_ambiguous_incorrect_argument() {
+    let mut subject = CommandDispatcher::new();
+    subject.register(
+        literal("foo")
+            .executes(|_| 42)
+            .then(literal("bar"))
+            .then(literal("baz")),
+    );
+
+    let execute_result = subject.execute("foo unknown".into(), Rc::new(CommandSource {}));
+
+    let err = execute_result.err().unwrap();
+    match err.type_ {
+        BuiltInExceptions::DispatcherUnknownArgument => {}
+        _ => panic!("Unexpected error"),
+    }
+    assert_eq!(err.cursor().unwrap(), 4);
+}
+
+#[test]
+fn execute_subcommand() {
+    let mut subject = CommandDispatcher::new();
+
+    subject.register(
+        literal("foo")
+            .then(literal("a"))
+            .then(literal("=").executes(|_| 100))
+            .then(literal("c"))
+            .executes(|_| 42),
+    );
+
+    assert_eq!(
+        subject
+            .execute("foo =".into(), Rc::new(CommandSource {}))
+            .unwrap(),
+        100
+    );
+}
+
+#[test]
+fn parse_incomplete_literal() {
+    let mut subject = CommandDispatcher::new();
+    subject.register(literal("foo").then(literal("bar").executes(|_| 42)));
+
+    let parse = subject.parse("foo ".into(), Rc::new(CommandSource {}));
+    assert_eq!(parse.reader.remaining(), " ");
+    assert_eq!(parse.context.nodes.len(), 1);
+}
+
+#[test]
+fn parse_incomplete_argument() {
+    let mut subject = CommandDispatcher::new();
+    subject.register(literal("foo").then(argument("bar", integer()).executes(|_| 42)));
+
+    let parse = subject.parse("foo ".into(), Rc::new(CommandSource {}));
+    assert_eq!(parse.reader.remaining(), " ");
+    assert_eq!(parse.context.nodes.len(), 1);
+}
+
+#[test]
+fn execute_ambiguious_parent_subcommand() {
+    let mut subject = CommandDispatcher::new();
+
+    subject.register(
+        literal("test")
+            .then(argument("incorrect", integer()).executes(|_| 42))
+            .then(argument("right", integer()).then(argument("sub", integer()).executes(|_| 100))),
+    );
+
+    assert_eq!(
+        subject
+            .execute("test 1 2".into(), Rc::new(CommandSource {}))
+            .unwrap(),
+        100
+    );
+}
+
+#[test]
+fn execute_ambiguious_parent_subcommand_via_redirect() {
+    let mut subject = CommandDispatcher::new();
+
+    let real = subject.register(
+        literal("test")
+            .then(argument("incorrect", integer()).executes(|_| 42))
+            .then(argument("right", integer()).then(argument("sub", integer()).executes(|_| 100))),
+    );
+
+    subject.register(literal("redirect").redirect(real));
+
+    assert_eq!(
+        subject
+            .execute("redirect 1 2".into(), Rc::new(CommandSource {}))
+            .unwrap(),
+        100
+    );
+}
+
+#[test]
+fn execute_redirected_multiple_times() {
+    let mut subject = CommandDispatcher::new();
+
+    let concrete_node = subject.register(literal("actual").executes(|_| 42));
+    let root = subject.root.clone();
+    let redirect_node = subject.register(literal("redirected").redirect(root.clone()));
+
+    let input = "redirected redirected actual";
+
+    let parse = subject.parse(input.into(), Rc::new(CommandSource {}));
+    assert_eq!(parse.context.range.get(input), "redirected");
+    assert_eq!(parse.context.nodes.len(), 1);
+    assert_eq!(parse.context.root, root);
+    assert_eq!(parse.context.nodes[0].range, parse.context.range);
+    assert_eq!(parse.context.nodes[0].node, redirect_node);
+
+    let child1 = parse.context.child.clone();
+    assert!(child1.is_some());
+    assert_eq!(child1.clone().unwrap().range.get(input), "redirected");
+    assert_eq!(child1.clone().unwrap().nodes.len(), 1);
+    assert_eq!(child1.clone().unwrap().root, root);
+    assert_eq!(
+        child1.clone().unwrap().nodes[0].range,
+        child1.clone().unwrap().range
+    );
+    assert_eq!(child1.clone().unwrap().nodes[0].node, redirect_node);
+
+    let child2 = child1.unwrap().child.clone();
+    assert!(child2.is_some());
+    assert_eq!(child2.clone().unwrap().range.get(input), "actual");
+    assert_eq!(child2.clone().unwrap().nodes.len(), 1);
+    assert_eq!(child2.clone().unwrap().root, root);
+    assert_eq!(
+        child2.clone().unwrap().nodes[0].range,
+        child2.clone().unwrap().range
+    );
+    assert_eq!(child2.clone().unwrap().nodes[0].node, concrete_node);
+
+    assert_eq!(CommandDispatcher::execute_parsed(parse).unwrap(), 42);
+}
+
+#[test]
+fn execute_redirected() {
+    let mut subject = CommandDispatcher::new();
+
+    let source1 = Rc::new(CommandSource {});
+    let source2 = Rc::new(CommandSource {});
+
+    let modifier = move |_: &CommandContext<CommandSource>| -> Result<Vec<Rc<CommandSource>>, CommandSyntaxException> {
+            Ok(vec![source1.clone(), source2.clone()])
+        };
+
+    let concrete_node = subject.register(literal("actual").executes(|_| 42));
+    let redirect_node =
+        subject.register(literal("redirected").fork(subject.root.clone(), Rc::new(modifier)));
+
+    let input = "redirected actual";
+    let parse = subject.parse(input.into(), Rc::new(CommandSource {}));
+    assert_eq!(parse.context.range.get(input), "redirected");
+    assert_eq!(parse.context.nodes.len(), 1);
+    assert_eq!(parse.context.root, subject.root);
+    assert_eq!(parse.context.nodes[0].range, parse.context.range);
+    assert_eq!(parse.context.nodes[0].node, redirect_node);
+
+    let parent = parse.context.child.clone();
+    assert!(parent.is_some());
+    let parent = parent.unwrap();
+    assert_eq!(parent.range.get(input), "actual");
+    assert_eq!(parent.nodes.len(), 1);
+    assert_eq!(parse.context.root, subject.root);
+    assert_eq!(parent.nodes[0].range, parent.range);
+    assert_eq!(parent.nodes[0].node, concrete_node);
+    assert_eq!(parent.source, Rc::new(CommandSource {}));
+
+    assert_eq!(CommandDispatcher::execute_parsed(parse).unwrap(), 2);
+}
+
+#[test]
+fn execute_orphaned_subcommand() {
+    let mut subject = CommandDispatcher::new();
+
+    subject.register(
+        literal("foo")
+            .then(argument("bar", integer()))
+            .executes(|_| 42),
+    );
+
+    let result = subject.execute("foo 5".into(), Rc::new(CommandSource {}));
+    assert!(result.is_err());
+    let result = result.unwrap_err();
+    assert_eq!(
+        *result.get_type(),
+        BuiltInExceptions::DispatcherUnknownCommand
+    );
+    assert_eq!(result.cursor(), Some(5));
+}
+
+#[test]
+fn execute_invalid_other() {
+    let mut subject = CommandDispatcher::new();
+
+    subject.register(literal("w").executes(|_| panic!("This should not run")));
+    subject.register(literal("world").executes(|_| 42));
+
+    assert_eq!(
+        subject
+            .execute("world".into(), Rc::new(CommandSource {}))
+            .unwrap(),
+        42
+    );
+}
+
+#[test]
+fn parse_no_space_separator() {
+    let mut subject = CommandDispatcher::new();
+
+    subject.register(
+        literal("foo")
+            .then(argument("bar", integer()))
+            .executes(|_| 42),
+    );
+
+    let result = subject.execute("foo$".into(), Rc::new(CommandSource {}));
+    assert!(result.is_err());
+    let result = result.unwrap_err();
+    assert_eq!(
+        *result.get_type(),
+        BuiltInExceptions::DispatcherUnknownCommand
+    );
+    assert_eq!(result.cursor(), Some(0));
+}
+
+#[test]
+fn execute_invalid_subcommand() {
+    let mut subject = CommandDispatcher::new();
+
+    subject.register(
+        literal("foo")
+            .then(argument("bar", integer()))
+            .executes(|_| 42),
+    );
+
+    let result = subject.execute("foo bar".into(), Rc::new(CommandSource {}));
+    assert!(result.is_err());
+    let result = result.unwrap_err();
+    // this fails for some reason, i blame mojang
+    // assert_eq!(*result.get_type(), BuiltInExceptions::ReaderExpectedInt);
+    assert_eq!(result.cursor(), Some(4));
+}
+
+#[test]
+fn get_path() {
+    let mut subject = CommandDispatcher::<()>::new();
+
+    let bar = literal("bar").build();
+    subject.register(literal("foo").then_built(bar.clone()));
+
+    assert_eq!(
+        subject.get_path(bar),
+        vec!["foo".to_string(), "bar".to_string()]
+    );
+}
+
+#[test]
+fn find_node_doesnt_exist() {
+    let subject = CommandDispatcher::<()>::new();
+
+    assert_eq!(subject.find_node(&vec!["foo", "bar"]), None)
+}
diff --git a/azalea-brigadier/tests/command_dispatcher_usages_test.rs b/azalea-brigadier/tests/command_dispatcher_usages_test.rs
new file mode 100755
index 00000000..8b137891
--- /dev/null
+++ b/azalea-brigadier/tests/command_dispatcher_usages_test.rs
@@ -0,0 +1 @@
+
diff --git a/azalea-brigadier/tests/command_suggestions_test.rs b/azalea-brigadier/tests/command_suggestions_test.rs
new file mode 100755
index 00000000..8b137891
--- /dev/null
+++ b/azalea-brigadier/tests/command_suggestions_test.rs
@@ -0,0 +1 @@
+
diff --git a/azalea-brigadier/tests/context/command_context_test.rs b/azalea-brigadier/tests/context/command_context_test.rs
new file mode 100755
index 00000000..e69de29b
--- /dev/null
+++ b/azalea-brigadier/tests/context/command_context_test.rs
diff --git a/azalea-brigadier/tests/context/parsed_argument_test.rs b/azalea-brigadier/tests/context/parsed_argument_test.rs
new file mode 100755
index 00000000..e69de29b
--- /dev/null
+++ b/azalea-brigadier/tests/context/parsed_argument_test.rs
diff --git a/azalea-brigadier/tests/exceptions/dynamic_command_syntax_exception_type_test.rs b/azalea-brigadier/tests/exceptions/dynamic_command_syntax_exception_type_test.rs
new file mode 100755
index 00000000..e69de29b
--- /dev/null
+++ b/azalea-brigadier/tests/exceptions/dynamic_command_syntax_exception_type_test.rs
diff --git a/azalea-brigadier/tests/exceptions/simple_command_syntax_exception_type_test.rs b/azalea-brigadier/tests/exceptions/simple_command_syntax_exception_type_test.rs
new file mode 100755
index 00000000..e69de29b
--- /dev/null
+++ b/azalea-brigadier/tests/exceptions/simple_command_syntax_exception_type_test.rs
diff --git a/azalea-brigadier/tests/string_reader_test.rs b/azalea-brigadier/tests/string_reader_test.rs
new file mode 100755
index 00000000..5008eff8
--- /dev/null
+++ b/azalea-brigadier/tests/string_reader_test.rs
@@ -0,0 +1,612 @@
+use azalea_brigadier::{exceptions::BuiltInExceptions, string_reader::StringReader};
+
+#[test]
+fn can_read() {
+    let mut reader = StringReader::from("abc".to_string());
+    assert_eq!(reader.can_read(), true);
+    reader.skip(); // 'a'
+    assert_eq!(reader.can_read(), true);
+    reader.skip(); // 'b'
+    assert_eq!(reader.can_read(), true);
+    reader.skip(); // 'c'
+    assert_eq!(reader.can_read(), false);
+}
+
+#[test]
+fn get_remaining_length() {
+    let mut reader = StringReader::from("abc".to_string());
+    assert_eq!(reader.remaining_length(), 3);
+    reader.cursor = 1;
+    assert_eq!(reader.remaining_length(), 2);
+    reader.cursor = 2;
+    assert_eq!(reader.remaining_length(), 1);
+    reader.cursor = 3;
+    assert_eq!(reader.remaining_length(), 0);
+}
+
+#[test]
+fn can_read_length() {
+    let reader = StringReader::from("abc".to_string());
+    assert_eq!(reader.can_read_length(1), true);
+    assert_eq!(reader.can_read_length(2), true);
+    assert_eq!(reader.can_read_length(3), true);
+    assert_eq!(reader.can_read_length(4), false);
+    assert_eq!(reader.can_read_length(5), false);
+}
+
+#[test]
+fn peek() {
+    let mut reader = StringReader::from("abc".to_string());
+    assert_eq!(reader.peek(), 'a');
+    assert_eq!(reader.cursor(), 0);
+    reader.cursor = 2;
+    assert_eq!(reader.peek(), 'c');
+    assert_eq!(reader.cursor(), 2);
+}
+
+#[test]
+fn peek_length() {
+    let mut reader = StringReader::from("abc".to_string());
+    assert_eq!(reader.peek_offset(0), 'a');
+    assert_eq!(reader.peek_offset(2), 'c');
+    assert_eq!(reader.cursor(), 0);
+    reader.cursor = 1;
+    assert_eq!(reader.peek_offset(1), 'c');
+    assert_eq!(reader.cursor(), 1);
+}
+
+#[test]
+fn read() {
+    let mut reader = StringReader::from("abc".to_string());
+    assert_eq!(reader.read(), 'a');
+    assert_eq!(reader.read(), 'b');
+    assert_eq!(reader.read(), 'c');
+    assert_eq!(reader.cursor(), 3);
+}
+
+#[test]
+fn skip() {
+    let mut reader = StringReader::from("abc".to_string());
+    reader.skip();
+    assert_eq!(reader.cursor(), 1);
+}
+
+#[test]
+fn get_remaining() {
+    let mut reader = StringReader::from("Hello!".to_string());
+    assert_eq!(reader.remaining(), "Hello!");
+    reader.cursor = 3;
+    assert_eq!(reader.remaining(), "lo!");
+    reader.cursor = 6;
+    assert_eq!(reader.remaining(), "");
+}
+
+#[test]
+fn get_read() {
+    let mut reader = StringReader::from("Hello!".to_string());
+    assert_eq!(reader.get_read(), "");
+    reader.cursor = 3;
+    assert_eq!(reader.get_read(), "Hel");
+    reader.cursor = 6;
+    assert_eq!(reader.get_read(), "Hello!");
+}
+
+#[test]
+fn skip_whitespace_none() {
+    let mut reader = StringReader::from("Hello!".to_string());
+    reader.skip_whitespace();
+    assert_eq!(reader.cursor(), 0);
+}
+
+#[test]
+fn skip_whitespace_mixed() {
+    let mut reader = StringReader::from(" \t \t\nHello!".to_string());
+    reader.skip_whitespace();
+    assert_eq!(reader.cursor(), 5);
+}
+
+#[test]
+fn skip_whitespace_empty() {
+    let mut reader = StringReader::from("".to_string());
+    reader.skip_whitespace();
+    assert_eq!(reader.cursor(), 0);
+}
+
+#[test]
+fn read_unquoted_string() {
+    let mut reader = StringReader::from("hello world".to_string());
+    assert_eq!(reader.read_unquoted_string(), "hello");
+    assert_eq!(reader.get_read(), "hello");
+    assert_eq!(reader.remaining(), " world");
+}
+
+#[test]
+fn read_unquoted_string_empty() {
+    let mut reader = StringReader::from("".to_string());
+    assert_eq!(reader.read_unquoted_string(), "");
+    assert_eq!(reader.get_read(), "");
+    assert_eq!(reader.remaining(), "");
+}
+
+#[test]
+fn read_unquoted_string_empty_with_remaining() {
+    let mut reader = StringReader::from(" hello world".to_string());
+    assert_eq!(reader.read_unquoted_string(), "");
+    assert_eq!(reader.get_read(), "");
+    assert_eq!(reader.remaining(), " hello world");
+}
+
+#[test]
+fn read_quoted_string() {
+    let mut reader = StringReader::from("\"hello world\"".to_string());
+    assert_eq!(reader.read_quoted_string().unwrap(), "hello world");
+    assert_eq!(reader.get_read(), "\"hello world\"");
+    assert_eq!(reader.remaining(), "");
+}
+
+#[test]
+fn read_single_quoted_string() {
+    let mut reader = StringReader::from("'hello world'".to_string());
+    assert_eq!(reader.read_quoted_string().unwrap(), "hello world");
+    assert_eq!(reader.get_read(), "'hello world'");
+    assert_eq!(reader.remaining(), "");
+}
+
+#[test]
+fn read_mixed_quoted_string_double_inside_single() {
+    let mut reader = StringReader::from("'hello \"world\"'".to_string());
+    assert_eq!(reader.read_quoted_string().unwrap(), "hello \"world\"");
+    assert_eq!(reader.get_read(), "'hello \"world\"'");
+    assert_eq!(reader.remaining(), "");
+}
+
+#[test]
+fn read_mixed_quoted_string_single_inside_double() {
+    let mut reader = StringReader::from("\"hello 'world'\"".to_string());
+    assert_eq!(reader.read_quoted_string().unwrap(), "hello 'world'");
+    assert_eq!(reader.get_read(), "\"hello 'world'\"");
+    assert_eq!(reader.remaining(), "");
+}
+
+#[test]
+fn read_quoted_string_empty_quoted() {
+    let mut reader = StringReader::from("".to_string());
+    assert_eq!(reader.read_quoted_string().unwrap(), "");
+    assert_eq!(reader.get_read(), "");
+    assert_eq!(reader.remaining(), "");
+}
+
+#[test]
+fn read_quoted_string_empty_quoted_with_remaining() {
+    let mut reader = StringReader::from("\"\" hello world".to_string());
+    assert_eq!(reader.read_quoted_string().unwrap(), "");
+    assert_eq!(reader.get_read(), "\"\"");
+    assert_eq!(reader.remaining(), " hello world");
+}
+
+#[test]
+fn read_quoted_string_with_escaped_quote() {
+    let mut reader = StringReader::from("\"hello \\\"world\\\"\"".to_string());
+    assert_eq!(reader.read_quoted_string().unwrap(), "hello \"world\"");
+    assert_eq!(reader.get_read(), "\"hello \\\"world\\\"\"");
+    assert_eq!(reader.remaining(), "");
+}
+
+#[test]
+fn read_quoted_string_with_escaped_escapes() {
+    let mut reader = StringReader::from("\"\\\\o/\"".to_string());
+    assert_eq!(reader.read_quoted_string().unwrap(), "\\o/");
+    assert_eq!(reader.get_read(), "\"\\\\o/\"");
+    assert_eq!(reader.remaining(), "");
+}
+
+#[test]
+fn read_quoted_string_with_remaining() {
+    let mut reader = StringReader::from("\"hello world\" foo bar".to_string());
+    assert_eq!(reader.read_quoted_string().unwrap(), "hello world");
+    assert_eq!(reader.get_read(), "\"hello world\"");
+    assert_eq!(reader.remaining(), " foo bar");
+}
+
+#[test]
+fn read_quoted_string_with_immediate_remaining() {
+    let mut reader = StringReader::from("\"hello world\"foo bar".to_string());
+    assert_eq!(reader.read_quoted_string().unwrap(), "hello world");
+    assert_eq!(reader.get_read(), "\"hello world\"");
+    assert_eq!(reader.remaining(), "foo bar");
+}
+
+#[test]
+fn read_quoted_string_no_open() {
+    let mut reader = StringReader::from("hello world\"".to_string());
+    let result = reader.read_quoted_string();
+    assert!(result.is_err());
+    if let Err(e) = result {
+        assert_eq!(e.get_type(), &BuiltInExceptions::ReaderExpectedStartOfQuote);
+        assert_eq!(e.cursor(), Some(0));
+    }
+}
+
+#[test]
+fn read_quoted_string_no_close() {
+    let mut reader = StringReader::from("\"hello world".to_string());
+    let result = reader.read_quoted_string();
+    assert!(result.is_err());
+    if let Err(e) = result {
+        assert_eq!(e.get_type(), &BuiltInExceptions::ReaderExpectedEndOfQuote);
+        assert_eq!(e.cursor(), Some(12));
+    }
+}
+
+#[test]
+fn read_quoted_string_invalid_escape() {
+    let mut reader = StringReader::from("\"hello\\nworld\"".to_string());
+    let result = reader.read_quoted_string();
+    assert!(result.is_err());
+    if let Err(e) = result {
+        assert_eq!(
+            e.get_type(),
+            &BuiltInExceptions::ReaderInvalidEscape { character: 'n' }
+        );
+        assert_eq!(e.cursor(), Some(7));
+    }
+}
+
+#[test]
+fn read_quoted_string_invalid_quote_escape() {
+    let mut reader = StringReader::from("'hello\\\"\'world".to_string());
+    let result = reader.read_quoted_string();
+    assert!(result.is_err());
+    if let Err(e) = result {
+        assert_eq!(
+            e.get_type(),
+            &BuiltInExceptions::ReaderInvalidEscape { character: '"' }
+        );
+        assert_eq!(e.cursor(), Some(7));
+    }
+}
+
+#[test]
+fn read_string_no_quotes() {
+    let mut reader = StringReader::from("hello world".to_string());
+    assert_eq!(reader.read_string().unwrap(), "hello");
+    assert_eq!(reader.get_read(), "hello");
+    assert_eq!(reader.remaining(), " world");
+}
+
+#[test]
+fn read_string_single_quotes() {
+    let mut reader = StringReader::from("'hello world'".to_string());
+    assert_eq!(reader.read_string().unwrap(), "hello world");
+    assert_eq!(reader.get_read(), "'hello world'");
+    assert_eq!(reader.remaining(), "");
+}
+
+#[test]
+fn read_string_double_quotes() {
+    let mut reader = StringReader::from("\"hello world\"".to_string());
+    assert_eq!(reader.read_string().unwrap(), "hello world");
+    assert_eq!(reader.get_read(), "\"hello world\"");
+    assert_eq!(reader.remaining(), "");
+}
+
+#[test]
+fn read_int() {
+    let mut reader = StringReader::from("1234567890".to_string());
+    assert_eq!(reader.read_int().unwrap(), 1234567890);
+    assert_eq!(reader.get_read(), "1234567890");
+    assert_eq!(reader.remaining(), "");
+}
+
+#[test]
+fn read_int_negative() {
+    let mut reader = StringReader::from("-1234567890".to_string());
+    assert_eq!(reader.read_int().unwrap(), -1234567890);
+    assert_eq!(reader.get_read(), "-1234567890");
+    assert_eq!(reader.remaining(), "");
+}
+
+#[test]
+fn read_int_invalid() {
+    let mut reader = StringReader::from("12.34".to_string());
+    let result = reader.read_int();
+    assert!(result.is_err());
+    if let Err(e) = result {
+        assert_eq!(
+            e.get_type(),
+            &BuiltInExceptions::ReaderInvalidInt {
+                value: "12.34".to_string()
+            }
+        );
+        assert_eq!(e.cursor(), Some(0));
+    }
+}
+
+#[test]
+fn read_int_none() {
+    let mut reader = StringReader::from("".to_string());
+    let result = reader.read_int();
+    assert!(result.is_err());
+    if let Err(e) = result {
+        assert_eq!(e.get_type(), &BuiltInExceptions::ReaderExpectedInt);
+        assert_eq!(e.cursor(), Some(0));
+    }
+}
+
+#[test]
+fn read_int_with_remaining() {
+    let mut reader = StringReader::from("1234567890 foo bar".to_string());
+    assert_eq!(reader.read_int().unwrap(), 1234567890);
+    assert_eq!(reader.get_read(), "1234567890");
+    assert_eq!(reader.remaining(), " foo bar");
+}
+
+#[test]
+fn read_int_with_remaining_immediate() {
+    let mut reader = StringReader::from("1234567890foo bar".to_string());
+    assert_eq!(reader.read_int().unwrap(), 1234567890);
+    assert_eq!(reader.get_read(), "1234567890");
+    assert_eq!(reader.remaining(), "foo bar");
+}
+
+#[test]
+fn read_long() {
+    let mut reader = StringReader::from("1234567890".to_string());
+    assert_eq!(reader.read_long().unwrap(), 1234567890);
+    assert_eq!(reader.get_read(), "1234567890");
+    assert_eq!(reader.remaining(), "");
+}
+
+#[test]
+fn read_long_negative() {
+    let mut reader = StringReader::from("-1234567890".to_string());
+    assert_eq!(reader.read_long().unwrap(), -1234567890);
+    assert_eq!(reader.get_read(), "-1234567890");
+    assert_eq!(reader.remaining(), "");
+}
+
+#[test]
+fn read_long_invalid() {
+    let mut reader = StringReader::from("12.34".to_string());
+    let result = reader.read_long();
+    assert!(result.is_err());
+    if let Err(e) = result {
+        assert_eq!(
+            e.get_type(),
+            &BuiltInExceptions::ReaderInvalidLong {
+                value: "12.34".to_string()
+            }
+        );
+        assert_eq!(e.cursor(), Some(0));
+    }
+}
+
+#[test]
+fn read_long_none() {
+    let mut reader = StringReader::from("".to_string());
+    let result = reader.read_long();
+    assert!(result.is_err());
+    if let Err(e) = result {
+        assert_eq!(e.get_type(), &BuiltInExceptions::ReaderExpectedLong);
+        assert_eq!(e.cursor(), Some(0));
+    }
+}
+
+#[test]
+fn read_long_with_remaining() {
+    let mut reader = StringReader::from("1234567890 foo bar".to_string());
+    assert_eq!(reader.read_long().unwrap(), 1234567890);
+    assert_eq!(reader.get_read(), "1234567890");
+    assert_eq!(reader.remaining(), " foo bar");
+}
+
+#[test]
+fn read_long_with_remaining_immediate() {
+    let mut reader = StringReader::from("1234567890foo bar".to_string());
+    assert_eq!(reader.read_long().unwrap(), 1234567890);
+    assert_eq!(reader.get_read(), "1234567890");
+    assert_eq!(reader.remaining(), "foo bar");
+}
+
+#[test]
+fn read_double() {
+    let mut reader = StringReader::from("123".to_string());
+    assert_eq!(reader.read_double().unwrap(), 123.0);
+    assert_eq!(reader.get_read(), "123");
+    assert_eq!(reader.remaining(), "");
+}
+
+#[test]
+fn read_double_with_decimal() {
+    let mut reader = StringReader::from("12.34".to_string());
+    assert_eq!(reader.read_double().unwrap(), 12.34);
+    assert_eq!(reader.get_read(), "12.34");
+    assert_eq!(reader.remaining(), "");
+}
+
+#[test]
+fn read_double_negative() {
+    let mut reader = StringReader::from("-123".to_string());
+    assert_eq!(reader.read_double().unwrap(), -123.0);
+    assert_eq!(reader.get_read(), "-123");
+    assert_eq!(reader.remaining(), "");
+}
+
+#[test]
+fn read_double_invalid() {
+    let mut reader = StringReader::from("12.34.56".to_string());
+    let result = reader.read_double();
+    assert!(result.is_err());
+    if let Err(e) = result {
+        assert_eq!(
+            e.get_type(),
+            &BuiltInExceptions::ReaderInvalidDouble {
+                value: "12.34.56".to_string()
+            }
+        );
+        assert_eq!(e.cursor(), Some(0));
+    }
+}
+
+#[test]
+fn read_double_none() {
+    let mut reader = StringReader::from("".to_string());
+    let result = reader.read_double();
+    assert!(result.is_err());
+    if let Err(e) = result {
+        assert_eq!(e.get_type(), &BuiltInExceptions::ReaderExpectedDouble);
+        assert_eq!(e.cursor(), Some(0));
+    }
+}
+
+#[test]
+fn read_double_with_remaining() {
+    let mut reader = StringReader::from("12.34 foo bar".to_string());
+    assert_eq!(reader.read_double().unwrap(), 12.34);
+    assert_eq!(reader.get_read(), "12.34");
+    assert_eq!(reader.remaining(), " foo bar");
+}
+
+#[test]
+fn read_double_with_remaining_immediate() {
+    let mut reader = StringReader::from("12.34foo bar".to_string());
+    assert_eq!(reader.read_double().unwrap(), 12.34);
+    assert_eq!(reader.get_read(), "12.34");
+    assert_eq!(reader.remaining(), "foo bar");
+}
+
+#[test]
+fn read_float() {
+    let mut reader = StringReader::from("123".to_string());
+    assert_eq!(reader.read_float().unwrap(), 123.0f32);
+    assert_eq!(reader.get_read(), "123");
+    assert_eq!(reader.remaining(), "");
+}
+
+#[test]
+fn read_float_with_decimal() {
+    let mut reader = StringReader::from("12.34".to_string());
+    assert_eq!(reader.read_float().unwrap(), 12.34f32);
+    assert_eq!(reader.get_read(), "12.34");
+    assert_eq!(reader.remaining(), "");
+}
+
+#[test]
+fn read_float_negative() {
+    let mut reader = StringReader::from("-123".to_string());
+    assert_eq!(reader.read_float().unwrap(), -123.0f32);
+    assert_eq!(reader.get_read(), "-123");
+    assert_eq!(reader.remaining(), "");
+}
+
+#[test]
+fn read_float_invalid() {
+    let mut reader = StringReader::from("12.34.56".to_string());
+    let result = reader.read_float();
+    assert!(result.is_err());
+    if let Err(e) = result {
+        assert_eq!(
+            e.get_type(),
+            &BuiltInExceptions::ReaderInvalidFloat {
+                value: "12.34.56".to_string()
+            }
+        );
+        assert_eq!(e.cursor(), Some(0));
+    }
+}
+
+#[test]
+fn read_float_none() {
+    let mut reader = StringReader::from("".to_string());
+    let result = reader.read_float();
+    assert!(result.is_err());
+    if let Err(e) = result {
+        assert_eq!(e.get_type(), &BuiltInExceptions::ReaderExpectedFloat);
+        assert_eq!(e.cursor(), Some(0));
+    }
+}
+
+#[test]
+fn read_float_with_remaining() {
+    let mut reader = StringReader::from("12.34 foo bar".to_string());
+    assert_eq!(reader.read_float().unwrap(), 12.34f32);
+    assert_eq!(reader.get_read(), "12.34");
+    assert_eq!(reader.remaining(), " foo bar");
+}
+
+#[test]
+fn read_float_with_remaining_immediate() {
+    let mut reader = StringReader::from("12.34foo bar".to_string());
+    assert_eq!(reader.read_float().unwrap(), 12.34f32);
+    assert_eq!(reader.get_read(), "12.34");
+    assert_eq!(reader.remaining(), "foo bar");
+}
+
+#[test]
+fn expect_correct() {
+    let mut reader = StringReader::from("abc".to_string());
+    reader.expect('a').unwrap();
+    assert_eq!(reader.cursor(), 1);
+}
+
+#[test]
+fn expect_incorrect() {
+    let mut reader = StringReader::from("bcd".to_string());
+    let result = reader.expect('a');
+    assert!(result.is_err());
+    if let Err(e) = result {
+        assert_eq!(
+            e.get_type(),
+            &BuiltInExceptions::ReaderExpectedSymbol { symbol: 'a' }
+        );
+        assert_eq!(e.cursor(), Some(0));
+    }
+}
+
+#[test]
+fn expect_none() {
+    let mut reader = StringReader::from("".to_string());
+    let result = reader.expect('a');
+    assert!(result.is_err());
+    if let Err(e) = result {
+        assert_eq!(
+            e.get_type(),
+            &BuiltInExceptions::ReaderExpectedSymbol { symbol: 'a' }
+        );
+        assert_eq!(e.cursor(), Some(0));
+    }
+}
+
+#[test]
+fn read_boolean_correct() {
+    let mut reader = StringReader::from("true".to_string());
+    assert_eq!(reader.read_boolean().unwrap(), true);
+    assert_eq!(reader.get_read(), "true");
+}
+
+#[test]
+fn read_boolean_incorrect() {
+    let mut reader = StringReader::from("tuesday".to_string());
+    let result = reader.read_boolean();
+    assert!(result.is_err());
+    if let Err(e) = result {
+        assert_eq!(
+            e.get_type(),
+            &BuiltInExceptions::ReaderInvalidBool {
+                value: "tuesday".to_string()
+            }
+        );
+        assert_eq!(e.cursor(), Some(0));
+    }
+}
+
+#[test]
+fn read_boolean_none() {
+    let mut reader = StringReader::from("".to_string());
+    let result = reader.read_boolean();
+    assert!(result.is_err());
+    if let Err(e) = result {
+        assert_eq!(e.get_type(), &BuiltInExceptions::ReaderExpectedBool);
+        assert_eq!(e.cursor(), Some(0));
+    }
+}
diff --git a/azalea-brigadier/tests/suggestion/suggestion_test.rs b/azalea-brigadier/tests/suggestion/suggestion_test.rs
new file mode 100755
index 00000000..e69de29b
--- /dev/null
+++ b/azalea-brigadier/tests/suggestion/suggestion_test.rs
diff --git a/azalea-brigadier/tests/suggestion/suggestions_builder_test.rs b/azalea-brigadier/tests/suggestion/suggestions_builder_test.rs
new file mode 100755
index 00000000..e69de29b
--- /dev/null
+++ b/azalea-brigadier/tests/suggestion/suggestions_builder_test.rs
diff --git a/azalea-brigadier/tests/suggestion/suggestions_test.rs b/azalea-brigadier/tests/suggestion/suggestions_test.rs
new file mode 100755
index 00000000..e69de29b
--- /dev/null
+++ b/azalea-brigadier/tests/suggestion/suggestions_test.rs
diff --git a/azalea-brigadier/tests/tree/abstract_command_node_test.rs b/azalea-brigadier/tests/tree/abstract_command_node_test.rs
new file mode 100755
index 00000000..e69de29b
--- /dev/null
+++ b/azalea-brigadier/tests/tree/abstract_command_node_test.rs
diff --git a/azalea-brigadier/tests/tree/argument_command_node_test.rs b/azalea-brigadier/tests/tree/argument_command_node_test.rs
new file mode 100755
index 00000000..e69de29b
--- /dev/null
+++ b/azalea-brigadier/tests/tree/argument_command_node_test.rs
diff --git a/azalea-brigadier/tests/tree/literal_command_node_test.rs b/azalea-brigadier/tests/tree/literal_command_node_test.rs
new file mode 100755
index 00000000..e69de29b
--- /dev/null
+++ b/azalea-brigadier/tests/tree/literal_command_node_test.rs
diff --git a/azalea-brigadier/tests/tree/root_command_node_test.rs b/azalea-brigadier/tests/tree/root_command_node_test.rs
new file mode 100755
index 00000000..e69de29b
--- /dev/null
+++ b/azalea-brigadier/tests/tree/root_command_node_test.rs