diff tests/test-diff-indent-heuristic.t @ 36678:7834927f0243

tests: add tests about diff quality

These show the differences between bdiff and xdiff.

Differential Revision: https://phab.mercurial-scm.org/D2604

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test-diff-indent-heuristic.t	Sat Mar 03 12:39:15 2018 -0800
@@ -0,0 +1,339 @@
+#testcases bdiff xdiff
+
+#if xdiff
+#require xdiff
+  $ cat >> $HGRCPATH <<EOF
+  > [experimental]
+  > xdiff = true
+  > EOF
+#endif
+
+  $ hg init
+
+  $ cat > a.c <<'EOF'
+  > /*
+  >  * This function returns 1.
+  >  */
+  > int f() {
+  >   return 1;
+  > }
+  > /*
+  >  * This function returns 2.
+  >  */
+  > int g() {
+  >   return 2;
+  > }
+  > /*
+  >  * This function returns 3.
+  >  */
+  > int h() {
+  >   return 3;
+  > }
+  > EOF
+
+  $ cat > b.c <<'EOF'
+  > if (x) {
+  >    do_something();
+  > }
+  > 
+  > if (y) {
+  >    do_something_else();
+  > }
+  > EOF
+
+  $ cat > c.rb <<'EOF'
+  > #!ruby
+  > ["foo", "bar", "baz"].map do |i|
+  >   i.upcase
+  > end
+  > EOF
+
+  $ cat > d.py <<'EOF'
+  > try:
+  >     import foo
+  > except ImportError:
+  >     pass
+  > try:
+  >     import bar
+  > except ImportError:
+  >     pass
+  > EOF
+
+The below two files are taken from git: t/t4061-diff-indent.sh
+
+  $ cat > spaces.txt <<'EOF'
+  > 1
+  > 2
+  > a
+  > 
+  > b
+  > 3
+  > 4
+  > EOF
+
+  $ cat > functions.c <<'EOF'
+  > 1
+  > 2
+  > /* function */
+  > foo() {
+  >     foo
+  > }
+  > 
+  > 3
+  > 4
+  > EOF
+
+  $ hg commit -m 1 -A . -q
+
+  $ cat > a.c <<'EOF'
+  > /*
+  >  * This function returns 1.
+  >  */
+  > int f() {
+  >   return 1;
+  > }
+  > /*
+  >  * This function returns 3.
+  >  */
+  > int h() {
+  >   return 3;
+  > }
+  > EOF
+
+  $ cat > b.c <<'EOF'
+  > if (x) {
+  >    do_something();
+  > }
+  > 
+  > if (y) {
+  >    do_another_thing();
+  > }
+  > 
+  > if (y) {
+  >    do_something_else();
+  > }
+  > EOF
+
+  $ cat > c.rb <<'EOF'
+  > #!ruby
+  > ["foo", "bar", "baz"].map do |i|
+  >   i
+  > end
+  > ["foo", "bar", "baz"].map do |i|
+  >   i.upcase
+  > end
+  > EOF
+
+  $ cat > d.py <<'EOF'
+  > try:
+  >     import foo
+  > except ImportError:
+  >     pass
+  > try:
+  >     import baz
+  > except ImportError:
+  >     pass
+  > try:
+  >     import bar
+  > except ImportError:
+  >     pass
+  > EOF
+
+  $ cat > spaces.txt <<'EOF'
+  > 1
+  > 2
+  > a
+  > 
+  > b
+  > a
+  > 
+  > b
+  > 3
+  > 4
+  > EOF
+
+  $ cat > functions.c <<'EOF'
+  > 1
+  > 2
+  > /* function */
+  > bar() {
+  >     foo
+  > }
+  > 
+  > /* function */
+  > foo() {
+  >     foo
+  > }
+  > 
+  > 3
+  > 4
+  > EOF
+
+#if xdiff
+  $ hg diff --git
+  diff --git a/a.c b/a.c
+  --- a/a.c
+  +++ b/a.c
+  @@ -4,12 +4,6 @@
+   int f() {
+     return 1;
+   }
+  -/*
+  - * This function returns 2.
+  - */
+  -int g() {
+  -  return 2;
+  -}
+   /*
+    * This function returns 3.
+    */
+  diff --git a/b.c b/b.c
+  --- a/b.c
+  +++ b/b.c
+  @@ -2,6 +2,10 @@
+      do_something();
+   }
+   
+  +if (y) {
+  +   do_another_thing();
+  +}
+  +
+   if (y) {
+      do_something_else();
+   }
+  diff --git a/c.rb b/c.rb
+  --- a/c.rb
+  +++ b/c.rb
+  @@ -1,4 +1,7 @@
+   #!ruby
+  +["foo", "bar", "baz"].map do |i|
+  +  i
+  +end
+   ["foo", "bar", "baz"].map do |i|
+     i.upcase
+   end
+  diff --git a/d.py b/d.py
+  --- a/d.py
+  +++ b/d.py
+  @@ -2,6 +2,10 @@
+       import foo
+   except ImportError:
+       pass
+  +try:
+  +    import baz
+  +except ImportError:
+  +    pass
+   try:
+       import bar
+   except ImportError:
+  diff --git a/functions.c b/functions.c
+  --- a/functions.c
+  +++ b/functions.c
+  @@ -1,5 +1,10 @@
+   1
+   2
+  +/* function */
+  +bar() {
+  +    foo
+  +}
+  +
+   /* function */
+   foo() {
+       foo
+  diff --git a/spaces.txt b/spaces.txt
+  --- a/spaces.txt
+  +++ b/spaces.txt
+  @@ -2,6 +2,9 @@
+   2
+   a
+   
+  +b
+  +a
+  +
+   b
+   3
+   4
+#else
+  $ hg diff --git
+  diff --git a/a.c b/a.c
+  --- a/a.c
+  +++ b/a.c
+  @@ -5,12 +5,6 @@
+     return 1;
+   }
+   /*
+  - * This function returns 2.
+  - */
+  -int g() {
+  -  return 2;
+  -}
+  -/*
+    * This function returns 3.
+    */
+   int h() {
+  diff --git a/b.c b/b.c
+  --- a/b.c
+  +++ b/b.c
+  @@ -3,5 +3,9 @@
+   }
+   
+   if (y) {
+  +   do_another_thing();
+  +}
+  +
+  +if (y) {
+      do_something_else();
+   }
+  diff --git a/c.rb b/c.rb
+  --- a/c.rb
+  +++ b/c.rb
+  @@ -1,4 +1,7 @@
+   #!ruby
+   ["foo", "bar", "baz"].map do |i|
+  +  i
+  +end
+  +["foo", "bar", "baz"].map do |i|
+     i.upcase
+   end
+  diff --git a/d.py b/d.py
+  --- a/d.py
+  +++ b/d.py
+  @@ -3,6 +3,10 @@
+   except ImportError:
+       pass
+   try:
+  +    import baz
+  +except ImportError:
+  +    pass
+  +try:
+       import bar
+   except ImportError:
+       pass
+  diff --git a/functions.c b/functions.c
+  --- a/functions.c
+  +++ b/functions.c
+  @@ -1,6 +1,11 @@
+   1
+   2
+   /* function */
+  +bar() {
+  +    foo
+  +}
+  +
+  +/* function */
+   foo() {
+       foo
+   }
+  diff --git a/spaces.txt b/spaces.txt
+  --- a/spaces.txt
+  +++ b/spaces.txt
+  @@ -3,5 +3,8 @@
+   a
+   
+   b
+  +a
+  +
+  +b
+   3
+   4
+#endif