1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
|
# frozen_string_literal: true
require 'spec_helper'
describe Gitlab::Diff::HighlightCache, :clean_gitlab_redis_cache do
let(:merge_request) { create(:merge_request_with_diffs) }
let(:diff_hash) do
{ ".gitignore-false-false-false" =>
[{ line_code: nil, rich_text: nil, text: "@@ -17,3 +17,4 @@ rerun.txt", type: "match", index: 0, old_pos: 17, new_pos: 17 },
{ line_code: "a5cc2925ca8258af241be7e5b0381edf30266302_17_17",
rich_text: " <span id=\"LC17\" class=\"line\" lang=\"plaintext\">pickle-email-*.html</span>\n",
text: " pickle-email-*.html",
type: nil,
index: 1,
old_pos: 17,
new_pos: 17 },
{ line_code: "a5cc2925ca8258af241be7e5b0381edf30266302_18_18",
rich_text: " <span id=\"LC18\" class=\"line\" lang=\"plaintext\">.project</span>\n",
text: " .project",
type: nil,
index: 2,
old_pos: 18,
new_pos: 18 },
{ line_code: "a5cc2925ca8258af241be7e5b0381edf30266302_19_19",
rich_text: " <span id=\"LC19\" class=\"line\" lang=\"plaintext\">config/initializers/secret_token.rb</span>\n",
text: " config/initializers/secret_token.rb",
type: nil,
index: 3,
old_pos: 19,
new_pos: 19 },
{ line_code: "a5cc2925ca8258af241be7e5b0381edf30266302_20_20",
rich_text: "+<span id=\"LC20\" class=\"line\" lang=\"plaintext\">.DS_Store</span>",
text: "+.DS_Store",
type: "new",
index: 4,
old_pos: 20,
new_pos: 20 }] }
end
let(:cache_key) { cache.key }
subject(:cache) { described_class.new(merge_request.diffs) }
describe '#decorate' do
# Manually creates a Diff::File object to avoid triggering the cache on
# the FileCollection::MergeRequestDiff
let(:diff_file) do
diffs = merge_request.diffs
raw_diff = diffs.diffable.raw_diffs(diffs.diff_options.merge(paths: ['CHANGELOG'])).first
Gitlab::Diff::File.new(raw_diff,
repository: diffs.project.repository,
diff_refs: diffs.diff_refs,
fallback_diff_refs: diffs.fallback_diff_refs)
end
it 'does not calculate highlighting when reading from cache' do
cache.write_if_empty
cache.decorate(diff_file)
expect_any_instance_of(Gitlab::Diff::Highlight).not_to receive(:highlight)
diff_file.highlighted_diff_lines
end
it 'assigns highlighted diff lines to the DiffFile' do
cache.write_if_empty
cache.decorate(diff_file)
expect(diff_file.highlighted_diff_lines.size).to be > 5
end
it 'assigns highlighted diff lines which rich_text are HTML-safe' do
cache.write_if_empty
cache.decorate(diff_file)
rich_texts = diff_file.highlighted_diff_lines.map(&:rich_text)
expect(rich_texts).to all(be_html_safe)
end
end
describe '#write_if_empty' do
it 'filters the key/value list of entries to be caches for each invocation' do
paths = merge_request.diffs.diff_files.select(&:text?).map(&:file_path)
expect(cache).to receive(:write_to_redis_hash)
.with(hash_including(*paths))
.once
.and_call_original
2.times { cache.write_if_empty }
end
it 'reads from cache once' do
expect(cache).to receive(:read_cache).once.and_call_original
cache.write_if_empty
end
context 'different diff_collections for the same diffable' do
before do
cache.write_if_empty
end
it 'writes an uncached files in the collection to the same redis hash' do
Gitlab::Redis::Cache.with { |r| r.hdel(cache_key, "files/whitespace") }
expect { cache.write_if_empty }
.to change { Gitlab::Redis::Cache.with { |r| r.hgetall(cache_key) } }
end
end
end
describe '#write_to_redis_hash' do
it 'creates or updates a Redis hash' do
expect { cache.send(:write_to_redis_hash, diff_hash) }
.to change { Gitlab::Redis::Cache.with { |r| r.hgetall(cache_key) } }
end
# Note that this spec and the code it confirms can be removed when
# :hset_redis_diff_caching is fully launched.
#
it 'attempts to clear deprecated cache entries' do
expect_any_instance_of(Gitlab::Diff::DeprecatedHighlightCache)
.to receive(:clear).and_call_original
cache.send(:write_to_redis_hash, diff_hash)
end
end
describe '#clear' do
it 'clears cache' do
expect_any_instance_of(Redis).to receive(:del).with(cache_key)
cache.clear
end
end
end
|
