preview.nvim/spec/init_spec.lua
Barrett Ruth 673573044f
feat: rename watch → toggle, auto-compile on start, built-in opener
Problem: :Preview watch only registered a BufWritePost autocmd without
compiling immediately, required boilerplate to open output files after
first compilation, and was misleadingly named.

Solution: Rename watch → toggle throughout. M.toggle now compiles
immediately on activation. Add an open field to ProviderConfig: true
calls vim.ui.open(), a string[] runs the command with the output path
appended, tracked per-buffer so the file opens only once. All presets
default to { 'xdg-open' }. Health check validates opener binaries.
Guard the async compile callback against invalid buffer ids.
2026-03-02 23:37:44 -05:00

103 lines
3.2 KiB
Lua

local helpers = require('spec.helpers')
describe('preview', function()
local preview
before_each(function()
helpers.reset_config()
preview = require('preview')
end)
describe('config', function()
it('returns defaults before setup is called', function()
local config = preview.get_config()
assert.is_false(config.debug)
assert.are.same({}, config.providers)
end)
it('merges user config with defaults', function()
helpers.reset_config({ debug = true })
local config = require('preview').get_config()
assert.is_true(config.debug)
assert.are.same({}, config.providers)
end)
it('accepts full provider config via hash entry', function()
helpers.reset_config({
typst = {
cmd = { 'typst', 'compile' },
args = { '%s' },
},
})
local config = require('preview').get_config()
assert.is_not_nil(config.providers.typst)
end)
it('resolves array preset names to provider configs', function()
helpers.reset_config({ 'typst', 'markdown' })
local config = require('preview').get_config()
local presets = require('preview.presets')
assert.are.same(presets.typst, config.providers.typst)
assert.are.same(presets.markdown, config.providers.markdown)
end)
it('resolves latex preset under tex filetype', function()
helpers.reset_config({ 'latex' })
local config = require('preview').get_config()
local presets = require('preview.presets')
assert.are.same(presets.latex, config.providers.tex)
end)
it('resolves github preset under markdown filetype', function()
helpers.reset_config({ 'github' })
local config = require('preview').get_config()
local presets = require('preview.presets')
assert.are.same(presets.github, config.providers.markdown)
end)
end)
describe('resolve_provider', function()
before_each(function()
helpers.reset_config({
typst = { cmd = { 'typst', 'compile' } },
})
preview = require('preview')
end)
it('returns filetype when provider exists', function()
local bufnr = helpers.create_buffer({}, 'typst')
local name = preview.resolve_provider(bufnr)
assert.are.equal('typst', name)
helpers.delete_buffer(bufnr)
end)
it('returns nil for unconfigured filetype', function()
local bufnr = helpers.create_buffer({}, 'lua')
local name = preview.resolve_provider(bufnr)
assert.is_nil(name)
helpers.delete_buffer(bufnr)
end)
end)
describe('build_context', function()
it('builds context from buffer', function()
local bufnr = helpers.create_buffer({}, 'typst')
local ctx = preview.build_context(bufnr)
assert.are.equal(bufnr, ctx.bufnr)
assert.are.equal('typst', ctx.ft)
assert.is_string(ctx.file)
assert.is_string(ctx.root)
helpers.delete_buffer(bufnr)
end)
end)
describe('status', function()
it('returns idle when nothing is compiling', function()
local bufnr = helpers.create_buffer({})
local s = preview.status(bufnr)
assert.is_false(s.compiling)
assert.is_nil(s.provider)
helpers.delete_buffer(bufnr)
end)
end)
end)