106 lines
3.2 KiB
Lua
106 lines
3.2 KiB
Lua
describe('cp.highlight', function()
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local spec_helper = require('spec.spec_helper')
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local highlight
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before_each(function()
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spec_helper.setup()
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highlight = require('cp.ui.highlight')
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end)
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after_each(function()
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spec_helper.teardown()
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end)
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describe('parse_git_diff', function()
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it('skips git diff headers', function()
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local diff_output = [[diff --git a/test b/test
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index 1234567..abcdefg 100644
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--- a/test
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+++ b/test
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@@ -1,3 +1,3 @@
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hello
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+world
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-goodbye]]
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local result = highlight.parse_git_diff(diff_output)
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assert.same({ 'hello', 'world' }, result.content)
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end)
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it('processes added lines', function()
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local diff_output = '+hello w{+o+}rld'
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local result = highlight.parse_git_diff(diff_output)
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assert.same({ 'hello world' }, result.content)
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assert.equals(1, #result.highlights)
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assert.equals('CpDiffAdded', result.highlights[1].highlight_group)
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end)
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it('ignores removed lines', function()
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local diff_output = 'hello\n-removed line\n+kept line'
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local result = highlight.parse_git_diff(diff_output)
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assert.same({ 'hello', 'kept line' }, result.content)
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end)
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it('handles unchanged lines', function()
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local diff_output = 'unchanged line\n+added line'
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local result = highlight.parse_git_diff(diff_output)
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assert.same({ 'unchanged line', 'added line' }, result.content)
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end)
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it('sets correct line numbers', function()
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local diff_output = '+first {+added+}\n+second {+text+}'
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local result = highlight.parse_git_diff(diff_output)
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assert.equals(0, result.highlights[1].line)
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assert.equals(1, result.highlights[2].line)
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end)
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it('handles empty diff output', function()
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local result = highlight.parse_git_diff('')
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assert.same({}, result.content)
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assert.same({}, result.highlights)
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end)
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end)
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describe('apply_highlights', function()
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it('handles empty highlights without errors', function()
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local namespace = highlight.create_namespace()
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assert.has_no_errors(function()
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highlight.apply_highlights(1, {}, namespace)
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end)
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end)
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it('handles valid highlight data without errors', function()
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local highlights = {
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{
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line = 0,
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col_start = 5,
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col_end = 10,
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highlight_group = 'CpDiffAdded',
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},
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}
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local namespace = highlight.create_namespace()
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assert.has_no_errors(function()
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highlight.apply_highlights(1, highlights, namespace)
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end)
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end)
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end)
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describe('create_namespace', function()
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it('returns a number', function()
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local result = highlight.create_namespace()
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assert.equals('number', type(result))
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end)
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end)
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describe('parse_and_apply_diff', function()
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it('returns content lines', function()
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local namespace = highlight.create_namespace()
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local result = highlight.parse_and_apply_diff(1, '+first\n+second', namespace)
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assert.same({ 'first', 'second' }, result)
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end)
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it('handles empty diff', function()
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local namespace = highlight.create_namespace()
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local result = highlight.parse_and_apply_diff(1, '', namespace)
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assert.same({}, result)
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end)
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end)
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end)
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