git.iko.soy/crush
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crush/internal/diffdetect/detect_test.go
152 lines 2.5 kB history raw
1package diffdetect
3import "testing"
5func TestInspect(t *testing.T) {
6 t.Parallel()
8 tests := []struct {
9 name string
10 content string
11 want Signal
12 }{
13 {
14 name: "git unified diff",
15 content: `diff --git a/main.go b/main.go
16--- a/main.go
17+++ b/main.go
18@@ -1,2 +1,3 @@
19 package main
20+import "fmt"
21`,
22 want: Signal{HasHunk: true, HasFileHeader: true, HasGitHeader: true},
23 },
24 {
25 name: "non-git unified diff",
26 content: `--- old.c
27+++ old.c
28@@ -1 +1 @@
29-old
30+new
31`,
32 want: Signal{HasHunk: true, HasFileHeader: true, HasGitHeader: false},
33 },
34 {
35 name: "plain text",
36 content: "hello world",
37 want: Signal{},
38 },
39 {
40 name: "hunk only",
41 content: "@@ -1 +1 @@\n-old\n+new\n",
42 want: Signal{HasHunk: true},
43 },
44 {
45 name: "headers only",
46 content: "--- a/file\n+++ b/file\n",
47 want: Signal{HasFileHeader: true},
48 },
49 }
51 for _, tt := range tests {
52 t.Run(tt.name, func(t *testing.T) {
53 t.Parallel()
54 got := Inspect(tt.content)
55 if got != tt.want {
56 t.Errorf("Inspect() = %+v, want %+v", got, tt.want)
57 }
58 })
59 }
62func TestIsUnifiedDiff(t *testing.T) {
63 t.Parallel()
65 tests := []struct {
66 name string
67 content string
68 want bool
69 }{
70 {
71 name: "github-style multi-file diff",
72 content: `diff --git a/one.txt b/one.txt
73--- a/one.txt
74+++ b/one.txt
75@@ -1 +1 @@
76-a
77+b
78diff --git a/two.txt b/two.txt
79--- a/two.txt
80+++ b/two.txt
81@@ -1 +1 @@
82-c
83+d
84`,
85 want: true,
86 },
87 {
88 name: "non-git unified patch",
89 content: `--- a/old.c
90+++ b/old.c
91@@ -1,3 +1,4 @@
92 #include <stdio.h>
93-int main() {
94+int main(int argc, char **argv) {
95 return 0;
96 }
97`,
98 want: true,
99 },
100 {
101 name: "new file from dev null",
102 content: `--- /dev/null
103+++ newfile.txt
104@@ -0,0 +1,2 @@
105+hello
106+world
107`,
108 want: true,
109 },
110 {
111 name: "markdown false positive candidate",
112 content: `- Item one
113- Item two
114+ Bonus item
115- Item three
116`,
117 want: false,
118 },
119 {
120 name: "headers without hunk",
121 content: `--- a/somefile.txt
122+++ b/somefile.txt
123Just some content here
124No hunk markers at all
125`,
126 want: false,
127 },
128 {
129 name: "hunk without headers",
130 content: `@@ -1,3 +1,4 @@
131 some line
132-another line
133+changed line
134`,
135 want: false,
136 },
137 {
138 name: "empty",
139 content: "",
140 want: false,
141 },
142 }
144 for _, tt := range tests {
145 t.Run(tt.name, func(t *testing.T) {
146 t.Parallel()
147 if got := IsUnifiedDiff(tt.content); got != tt.want {
148 t.Errorf("IsUnifiedDiff() = %v, want %v", got, tt.want)
149 }
150 })
151 }