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183 lines
4.9 KiB
Rust
183 lines
4.9 KiB
Rust
use std::rc::Rc;
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use crate::doc_formatter::{DocumentFormatter, TextFormat};
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use crate::text_annotations::{InlineAnnotation, Overlay, TextAnnotations};
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impl TextFormat {
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fn new_test(softwrap: bool) -> Self {
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TextFormat {
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soft_wrap: softwrap,
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tab_width: 2,
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max_wrap: 3,
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max_indent_retain: 4,
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wrap_indicator: ".".into(),
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wrap_indicator_highlight: None,
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// use a prime number to allow lining up too often with repeat
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viewport_width: 17,
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}
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}
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}
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impl<'t> DocumentFormatter<'t> {
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fn collect_to_str(&mut self) -> String {
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use std::fmt::Write;
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let mut res = String::new();
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let viewport_width = self.text_fmt.viewport_width;
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let mut line = 0;
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for (grapheme, pos) in self {
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if pos.row != line {
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line += 1;
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assert_eq!(pos.row, line);
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write!(res, "\n{}", ".".repeat(pos.col)).unwrap();
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assert!(
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pos.col <= viewport_width as usize,
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"softwrapped failed {}<={viewport_width}",
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pos.col
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);
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}
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write!(res, "{}", grapheme.grapheme).unwrap();
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}
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res
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}
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}
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fn softwrap_text(text: &str) -> String {
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DocumentFormatter::new_at_prev_checkpoint(
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text.into(),
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&TextFormat::new_test(true),
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&TextAnnotations::default(),
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0,
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)
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.0
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.collect_to_str()
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}
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#[test]
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fn basic_softwrap() {
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assert_eq!(
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softwrap_text(&"foo ".repeat(10)),
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"foo foo foo foo \n.foo foo foo foo \n.foo foo "
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);
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assert_eq!(
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softwrap_text(&"fooo ".repeat(10)),
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"fooo fooo fooo \n.fooo fooo fooo \n.fooo fooo fooo \n.fooo "
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);
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// check that we don't wrap unnecessarily
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assert_eq!(softwrap_text("\t\txxxx1xxxx2xx\n"), " xxxx1xxxx2xx \n ");
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}
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#[test]
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fn softwrap_indentation() {
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assert_eq!(
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softwrap_text("\t\tfoo1 foo2 foo3 foo4 foo5 foo6\n"),
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" foo1 foo2 \n.....foo3 foo4 \n.....foo5 foo6 \n "
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);
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assert_eq!(
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softwrap_text("\t\t\tfoo1 foo2 foo3 foo4 foo5 foo6\n"),
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" foo1 foo2 \n.foo3 foo4 foo5 \n.foo6 \n "
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);
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}
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#[test]
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fn long_word_softwrap() {
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assert_eq!(
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softwrap_text("\t\txxxx1xxxx2xxxx3xxxx4xxxx5xxxx6xxxx7xxxx8xxxx9xxx\n"),
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" xxxx1xxxx2xxx\n.....x3xxxx4xxxx5\n.....xxxx6xxxx7xx\n.....xx8xxxx9xxx \n "
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);
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assert_eq!(
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softwrap_text("xxxxxxxx1xxxx2xxx\n"),
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"xxxxxxxx1xxxx2xxx\n. \n "
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);
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assert_eq!(
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softwrap_text("\t\txxxx1xxxx 2xxxx3xxxx4xxxx5xxxx6xxxx7xxxx8xxxx9xxx\n"),
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" xxxx1xxxx \n.....2xxxx3xxxx4x\n.....xxx5xxxx6xxx\n.....x7xxxx8xxxx9\n.....xxx \n "
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);
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assert_eq!(
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softwrap_text("\t\txxxx1xxx 2xxxx3xxxx4xxxx5xxxx6xxxx7xxxx8xxxx9xxx\n"),
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" xxxx1xxx 2xxx\n.....x3xxxx4xxxx5\n.....xxxx6xxxx7xx\n.....xx8xxxx9xxx \n "
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);
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}
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fn overlay_text(text: &str, char_pos: usize, softwrap: bool, overlays: &[Overlay]) -> String {
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DocumentFormatter::new_at_prev_checkpoint(
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text.into(),
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&TextFormat::new_test(softwrap),
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TextAnnotations::default().add_overlay(overlays.into(), None),
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char_pos,
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)
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.0
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.collect_to_str()
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}
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#[test]
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fn overlay() {
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assert_eq!(
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overlay_text(
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"foobar",
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0,
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false,
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&[Overlay::new(0, "X"), Overlay::new(2, "\t")],
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),
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"Xo bar "
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);
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assert_eq!(
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overlay_text(
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&"foo ".repeat(10),
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0,
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true,
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&[
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Overlay::new(2, "\t"),
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Overlay::new(5, "\t"),
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Overlay::new(16, "X"),
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]
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),
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"fo f o foo \n.foo Xoo foo foo \n.foo foo foo "
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);
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}
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fn annotate_text(text: &str, softwrap: bool, annotations: &[InlineAnnotation]) -> String {
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DocumentFormatter::new_at_prev_checkpoint(
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text.into(),
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&TextFormat::new_test(softwrap),
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TextAnnotations::default().add_inline_annotations(annotations.into(), None),
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0,
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)
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.0
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.collect_to_str()
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}
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#[test]
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fn annotation() {
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assert_eq!(
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annotate_text("bar", false, &[InlineAnnotation::new(0, "foo")]),
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"foobar "
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);
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assert_eq!(
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annotate_text(
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&"foo ".repeat(10),
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true,
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&[InlineAnnotation::new(0, "foo ")]
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),
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"foo foo foo foo \n.foo foo foo foo \n.foo foo foo "
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);
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}
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#[test]
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fn annotation_and_overlay() {
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assert_eq!(
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DocumentFormatter::new_at_prev_checkpoint(
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"bbar".into(),
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&TextFormat::new_test(false),
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TextAnnotations::default()
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.add_inline_annotations(Rc::new([InlineAnnotation::new(0, "fooo")]), None)
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.add_overlay(Rc::new([Overlay::new(0, "\t")]), None),
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0,
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)
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.0
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.collect_to_str(),
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"fooo bar "
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);
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}
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