Node / meshtastic / Meshtastic-Android / files / feature / messaging / src / commonTest / kotlin / org / meshtastic / feature / messaging / MessageFormattingTest.kt

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T8b949e/*

* Copyright (c) 2026 Meshtastic LLC

*

* This program is free software: you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation, either version 3 of the License, or

* (at your option) any later version.

*

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

* GNU General Public License for more details.

*

* You should have received a copy of the GNU General Public License

* along with this program. If not, see <https://www.gnu.org/licenses/>.

*/

Tff7b72package T7ee787org.meshtastic.feature.messaging

Tff7b72import T7ee787androidx.compose.ui.text.TextRange

Tff7b72import T7ee787org.meshtastic.core.ui.component.InlineStyle

Tff7b72import T7ee787kotlin.test.Test

Tff7b72import T7ee787kotlin.test.assertEquals

Tff7b72import T7ee787kotlin.test.assertFalse

Tff7b72import T7ee787kotlin.test.assertNull

Tff7b72import T7ee787kotlin.test.assertTrue

T8b949e/** Contract tests for the formatting helpers (see contracts/formatting-helpers.md, rows F-1…F-9). */

Tff7b72class T56d364MessageFormattingTest Tb4b4b4{

Tf0883e@Test T8b949e// F-1

Tff7b72fun Td2a8ffwrap_bold_wraps_selection_and_keeps_delimiters_selectedTb4b4b4(Tb4b4b4) Tb4b4b4{

Tff7b72val Te6edf3result Tff7b72= Te6edf3wrapSelectionTb4b4b4(Ta5d6ff"Ta5d6ffhello worldTa5d6ff"Tb4b4b4, Te6edf3TextRangeTb4b4b4(T79c0ff6Tb4b4b4, T79c0ff1T79c0ff1Tb4b4b4)Tb4b4b4, Te6edf3InlineStyleTb4b4b4.Te6edf3BoldTb4b4b4)

Te6edf3assertEqualsTb4b4b4(Ta5d6ff"Ta5d6ffhello **world**Ta5d6ff"Tb4b4b4, Te6edf3resultTb4b4b4.Te6edf3textTb4b4b4)

Te6edf3assertEqualsTb4b4b4(Ta5d6ff"Ta5d6ff**world**Ta5d6ff"Tb4b4b4, Te6edf3resultTb4b4b4.Te6edf3textTb4b4b4.Te6edf3substringTb4b4b4(Te6edf3resultTb4b4b4.Te6edf3selectionTb4b4b4.Te6edf3minTb4b4b4, Te6edf3resultTb4b4b4.Te6edf3selectionTb4b4b4.Te6edf3maxTb4b4b4)Tb4b4b4)

Tb4b4b4}

Tf0883e@Test T8b949e// F-2

Tff7b72fun Td2a8ffwrap_bold_toggles_off_when_already_wrappedTb4b4b4(Tb4b4b4) Tb4b4b4{

T8b949e// "hello **world**" — select the inner "world" (indices 8..13).

Tff7b72val Te6edf3result Tff7b72= Te6edf3wrapSelectionTb4b4b4(Ta5d6ff"Ta5d6ffhello **world**Ta5d6ff"Tb4b4b4, Te6edf3TextRangeTb4b4b4(T79c0ff8Tb4b4b4, T79c0ff1T79c0ff3Tb4b4b4)Tb4b4b4, Te6edf3InlineStyleTb4b4b4.Te6edf3BoldTb4b4b4)

Te6edf3assertEqualsTb4b4b4(Ta5d6ff"Ta5d6ffhello worldTa5d6ff"Tb4b4b4, Te6edf3resultTb4b4b4.Te6edf3textTb4b4b4)

Te6edf3assertEqualsTb4b4b4(Ta5d6ff"Ta5d6ffworldTa5d6ff"Tb4b4b4, Te6edf3resultTb4b4b4.Te6edf3textTb4b4b4.Te6edf3substringTb4b4b4(Te6edf3resultTb4b4b4.Te6edf3selectionTb4b4b4.Te6edf3minTb4b4b4, Te6edf3resultTb4b4b4.Te6edf3selectionTb4b4b4.Te6edf3maxTb4b4b4)Tb4b4b4)

Tb4b4b4}

Tf0883e@Test T8b949e// F-3

Tff7b72fun Td2a8ffcollapsed_cursor_inserts_pair_with_caret_betweenTb4b4b4(Tb4b4b4) Tb4b4b4{

Tff7b72val Te6edf3result Tff7b72= Te6edf3wrapSelectionTb4b4b4(Ta5d6ff"Ta5d6ffhiTa5d6ff"Tb4b4b4, Te6edf3TextRangeTb4b4b4(T79c0ff1Tb4b4b4)Tb4b4b4, Te6edf3InlineStyleTb4b4b4.Te6edf3ItalicTb4b4b4)

Te6edf3assertEqualsTb4b4b4(Ta5d6ff"Ta5d6ffh**iTa5d6ff"Tb4b4b4, Te6edf3resultTb4b4b4.Te6edf3textTb4b4b4)

Te6edf3assertTrueTb4b4b4(Te6edf3resultTb4b4b4.Te6edf3selectionTb4b4b4.Te6edf3collapsedTb4b4b4)

Te6edf3assertEqualsTb4b4b4(T79c0ff2Tb4b4b4, Te6edf3resultTb4b4b4.Te6edf3selectionTb4b4b4.Te6edf3startTb4b4b4)

Tb4b4b4}

Tf0883e@Test T8b949e// F-4

Tff7b72fun Td2a8fflink_wraps_selectionTb4b4b4(Tb4b4b4) Tb4b4b4{

Tff7b72val Te6edf3result Tff7b72= Te6edf3wrapSelectionWithLinkTb4b4b4(Ta5d6ff"Ta5d6ffsee docsTa5d6ff"Tb4b4b4, Te6edf3TextRangeTb4b4b4(T79c0ff4Tb4b4b4, T79c0ff8Tb4b4b4)Tb4b4b4, Ta5d6ff"Ta5d6ffhttps://e.comTa5d6ff"Tb4b4b4)

Te6edf3assertEqualsTb4b4b4(Ta5d6ff"Ta5d6ffsee [docs](https://e.com)Ta5d6ff"Tb4b4b4, Te6edf3resultTb4b4b4.Te6edf3textTb4b4b4)

Tb4b4b4}

Tf0883e@Test T8b949e// F-5

Tff7b72fun Td2a8fflink_inserts_placeholder_for_collapsed_cursorTb4b4b4(Tb4b4b4) Tb4b4b4{

Tff7b72val Te6edf3result Tff7b72= Te6edf3wrapSelectionWithLinkTb4b4b4(Ta5d6ff"Ta5d6ff"Tb4b4b4, Te6edf3TextRangeTb4b4b4(T79c0ff0Tb4b4b4)Tb4b4b4, Ta5d6ff"Ta5d6ffhttps://e.comTa5d6ff"Tb4b4b4)

Te6edf3assertEqualsTb4b4b4(Ta5d6ff"Ta5d6ff[link text](https://e.com)Ta5d6ff"Tb4b4b4, Te6edf3resultTb4b4b4.Te6edf3textTb4b4b4)

Tb4b4b4}

Tf0883e@Test T8b949e// F-6

Tff7b72fun Td2a8fflink_unwraps_to_labelTb4b4b4(Tb4b4b4) Tb4b4b4{

Tff7b72val Te6edf3text Tff7b72= Ta5d6ff"Ta5d6ff[docs](https://e.com)Ta5d6ff"

Tff7b72val Te6edf3result Tff7b72= Te6edf3unwrapLinkTb4b4b4(Te6edf3textTb4b4b4, Te6edf3TextRangeTb4b4b4(T79c0ff0Tb4b4b4, Te6edf3textTb4b4b4.Te6edf3lengthTb4b4b4)Tb4b4b4)

Te6edf3assertEqualsTb4b4b4(Ta5d6ff"Ta5d6ffdocsTa5d6ff"Tb4b4b4, Te6edf3resultTff7b72?.Te6edf3textTb4b4b4)

Tb4b4b4}

Tf0883e@Test T8b949e// F-6 (negative)

Tff7b72fun Td2a8ffunwrap_returns_null_for_non_linkTb4b4b4(Tb4b4b4) Tb4b4b4{

Te6edf3assertNullTb4b4b4(Te6edf3unwrapLinkTb4b4b4(Ta5d6ff"Ta5d6ffplain textTa5d6ff"Tb4b4b4, Te6edf3TextRangeTb4b4b4(T79c0ff0Tb4b4b4, T79c0ff1T79c0ff0Tb4b4b4)Tb4b4b4)Tb4b4b4)

Tb4b4b4}

Tf0883e@Test T8b949e// F-7

Tff7b72fun Td2a8ffwrapping_hugs_content_leaving_whitespace_outsideTb4b4b4(Tb4b4b4) Tb4b4b4{

Tff7b72val Te6edf3result Tff7b72= Te6edf3wrapSelectionTb4b4b4(Ta5d6ff"Ta5d6ff world Ta5d6ff"Tb4b4b4, Te6edf3TextRangeTb4b4b4(T79c0ff0Tb4b4b4, T79c0ff7Tb4b4b4)Tb4b4b4, Te6edf3InlineStyleTb4b4b4.Te6edf3BoldTb4b4b4)

Te6edf3assertEqualsTb4b4b4(Ta5d6ff"Ta5d6ff **world** Ta5d6ff"Tb4b4b4, Te6edf3resultTb4b4b4.Te6edf3textTb4b4b4)

Tb4b4b4}

Tf0883e@Test T8b949e// F-8

Tff7b72fun Td2a8ffwrapping_absorbs_adjacent_delimiter_without_orphanTb4b4b4(Tb4b4b4) Tb4b4b4{

T8b949e// The stray '*' before the selection is absorbed rather than left orphaned.

Tff7b72val Te6edf3result Tff7b72= Te6edf3wrapSelectionTb4b4b4(Ta5d6ff"Ta5d6ffa*bTa5d6ff"Tb4b4b4, Te6edf3TextRangeTb4b4b4(T79c0ff2Tb4b4b4, T79c0ff3Tb4b4b4)Tb4b4b4, Te6edf3InlineStyleTb4b4b4.Te6edf3BoldTb4b4b4)

Te6edf3assertEqualsTb4b4b4(Ta5d6ff"Ta5d6ffa**b**Ta5d6ff"Tb4b4b4, Te6edf3resultTb4b4b4.Te6edf3textTb4b4b4)

Tb4b4b4}

Tf0883e@Test T8b949e// F-9

Tff7b72fun Td2a8ffcontains_markdown_syntax_detects_and_rejectsTb4b4b4(Tb4b4b4) Tb4b4b4{

Te6edf3assertTrueTb4b4b4(Te6edf3containsMarkdownSyntaxTb4b4b4(Ta5d6ff"Ta5d6ffa **b**Ta5d6ff"Tb4b4b4)Tb4b4b4)

Te6edf3assertTrueTb4b4b4(Te6edf3containsMarkdownSyntaxTb4b4b4(Ta5d6ff"Ta5d6ffa *b*Ta5d6ff"Tb4b4b4)Tb4b4b4)

Te6edf3assertTrueTb4b4b4(Te6edf3containsMarkdownSyntaxTb4b4b4(Ta5d6ff"Ta5d6ffa ~~b~~Ta5d6ff"Tb4b4b4)Tb4b4b4)

Te6edf3assertTrueTb4b4b4(Te6edf3containsMarkdownSyntaxTb4b4b4(Ta5d6ff"Ta5d6ffa `b`Ta5d6ff"Tb4b4b4)Tb4b4b4)

Te6edf3assertTrueTb4b4b4(Te6edf3containsMarkdownSyntaxTb4b4b4(Ta5d6ff"Ta5d6ffa [b](c)Ta5d6ff"Tb4b4b4)Tb4b4b4)

Te6edf3assertFalseTb4b4b4(Te6edf3containsMarkdownSyntaxTb4b4b4(Ta5d6ff"Ta5d6ffa bTa5d6ff"Tb4b4b4)Tb4b4b4)

Te6edf3assertFalseTb4b4b4(Te6edf3containsMarkdownSyntaxTb4b4b4(Ta5d6ff"Ta5d6ff"Tb4b4b4)Tb4b4b4)

Tb4b4b4}

Tf0883e@Test T8b949e// isMarkdownLink

Tff7b72fun Td2a8ffis_markdown_link_matches_exact_link_onlyTb4b4b4(Tb4b4b4) Tb4b4b4{

Te6edf3assertTrueTb4b4b4(Te6edf3isMarkdownLinkTb4b4b4(Ta5d6ff"Ta5d6ff[x](https://e.com)Ta5d6ff"Tb4b4b4)Tb4b4b4)

Te6edf3assertFalseTb4b4b4(Te6edf3isMarkdownLinkTb4b4b4(Ta5d6ff"Ta5d6ffsee [x](https://e.com) hereTa5d6ff"Tb4b4b4)Tb4b4b4)

Tb4b4b4}

Tb4b4b4}