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nexedi
caddy
Commits
b3a5b725
Commit
b3a5b725
authored
Mar 28, 2016
by
Matt Holt
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Merge pull request #696 from mholt/templateUtils
templates: Adding some useful utility functions
parents
5989eb06
f28d8b86
Changes
2
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2 changed files
with
69 additions
and
0 deletions
+69
-0
middleware/context.go
middleware/context.go
+38
-0
middleware/context_test.go
middleware/context_test.go
+31
-0
No files found.
middleware/context.go
View file @
b3a5b725
...
...
@@ -2,6 +2,7 @@ package middleware
import
(
"bytes"
"fmt"
"io/ioutil"
"net"
"net/http"
...
...
@@ -219,3 +220,40 @@ func ContextInclude(filename string, ctx interface{}, fs http.FileSystem) (strin
return
buf
.
String
(),
nil
}
// ToLower will convert the given string to lower case.
func
(
c
Context
)
ToLower
(
s
string
)
string
{
return
strings
.
ToLower
(
s
)
}
// ToUpper will convert the given string to upper case.
func
(
c
Context
)
ToUpper
(
s
string
)
string
{
return
strings
.
ToUpper
(
s
)
}
// Split is a passthrough to strings.Split. It will split the first argument at each instance of the seperator and return a slice of strings.
func
(
c
Context
)
Split
(
s
string
,
sep
string
)
[]
string
{
return
strings
.
Split
(
s
,
sep
)
}
// Slice will convert the given arguments into a slice.
func
(
c
Context
)
Slice
(
elems
...
interface
{})
[]
interface
{}
{
return
elems
}
// Map will convert the arguments into a map. It expects alternating string keys and values. This is useful for building more complicated data structures
// if you are using subtemplates or things like that.
func
(
c
Context
)
Map
(
values
...
interface
{})
(
map
[
string
]
interface
{},
error
)
{
if
len
(
values
)
%
2
!=
0
{
return
nil
,
fmt
.
Errorf
(
"Map expects an even number of arguments"
)
}
dict
:=
make
(
map
[
string
]
interface
{},
len
(
values
)
/
2
)
for
i
:=
0
;
i
<
len
(
values
);
i
+=
2
{
key
,
ok
:=
values
[
i
]
.
(
string
)
if
!
ok
{
return
nil
,
fmt
.
Errorf
(
"Map keys must be strings"
)
}
dict
[
key
]
=
values
[
i
+
1
]
}
return
dict
,
nil
}
middleware/context_test.go
View file @
b3a5b725
...
...
@@ -11,6 +11,8 @@ import (
"strings"
"testing"
"time"
"text/template"
)
func
TestInclude
(
t
*
testing
.
T
)
{
...
...
@@ -611,3 +613,32 @@ func getContextOrFail(t *testing.T) Context {
func
getTestPrefix
(
testN
int
)
string
{
return
fmt
.
Sprintf
(
"Test [%d]: "
,
testN
)
}
func
TestTemplates
(
t
*
testing
.
T
)
{
tests
:=
[]
struct
{
tmpl
,
expected
string
}{
{
`{{.ToUpper "aAA"}}`
,
"AAA"
},
{
`{{"bbb" | .ToUpper}}`
,
"BBB"
},
{
`{{.ToLower "CCc"}}`
,
"ccc"
},
{
`{{range (.Split "a,b,c" ",")}}{{.}}{{end}}`
,
"abc"
},
{
`{{range .Split "a,b,c" ","}}{{.}}{{end}}`
,
"abc"
},
{
`{{range .Slice "a" "b" "c"}}{{.}}{{end}}`
,
"abc"
},
{
`{{with .Map "A" "a" "B" "b" "c" "d"}}{{.A}}{{.B}}{{.c}}{{end}}`
,
"abd"
},
}
for
i
,
test
:=
range
tests
{
ctx
:=
getContextOrFail
(
t
)
tmpl
,
err
:=
template
.
New
(
""
)
.
Parse
(
test
.
tmpl
)
if
err
!=
nil
{
t
.
Errorf
(
"Test %d: %s"
,
i
,
err
)
continue
}
buf
:=
&
bytes
.
Buffer
{}
err
=
tmpl
.
Execute
(
buf
,
ctx
)
if
err
!=
nil
{
t
.
Errorf
(
"Test %d: %s"
,
i
,
err
)
continue
}
if
buf
.
String
()
!=
test
.
expected
{
t
.
Errorf
(
"Test %d: Results do not match. '%s' != '%s'"
,
i
,
buf
.
String
(),
test
.
expected
)
}
}
}
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