mirror of
https://github.com/gohugoio/hugo.git
synced 2024-07-02 15:20:28 +00:00
420c9e4d3d
The variable scope in the Go templates makes it hard, if possible at all, to write templates with counter variables or similar state. This commit fixes that by adding a writable context to Node, backed by a map: Scratch. This context has three methods, Get, Set and Add. The Add is tailored for counter variables, but can be used for any built-in numeric values or strings.
50 lines
1 KiB
Go
50 lines
1 KiB
Go
package hugolib
|
|
|
|
import (
|
|
"github.com/stretchr/testify/assert"
|
|
"testing"
|
|
)
|
|
|
|
func TestScratchAdd(t *testing.T) {
|
|
scratch := newScratch()
|
|
scratch.Add("int1", 10)
|
|
scratch.Add("int1", 20)
|
|
scratch.Add("int2", 20)
|
|
|
|
assert.Equal(t, 30, scratch.Get("int1"))
|
|
assert.Equal(t, 20, scratch.Get("int2"))
|
|
|
|
scratch.Add("float1", float64(10.5))
|
|
scratch.Add("float1", float64(20.1))
|
|
|
|
assert.Equal(t, float64(30.6), scratch.Get("float1"))
|
|
|
|
scratch.Add("string1", "Hello ")
|
|
scratch.Add("string1", "big ")
|
|
scratch.Add("string1", "World!")
|
|
|
|
assert.Equal(t, "Hello big World!", scratch.Get("string1"))
|
|
|
|
scratch.Add("scratch", scratch)
|
|
_, err := scratch.Add("scratch", scratch)
|
|
|
|
if err == nil {
|
|
t.Errorf("Expected error from invalid arithmetic")
|
|
}
|
|
|
|
}
|
|
|
|
func TestScratchSet(t *testing.T) {
|
|
scratch := newScratch()
|
|
scratch.Set("key", "val")
|
|
assert.Equal(t, "val", scratch.Get("key"))
|
|
}
|
|
|
|
func TestScratchGet(t *testing.T) {
|
|
scratch := newScratch()
|
|
nothing := scratch.Get("nothing")
|
|
if nothing != nil {
|
|
t.Errorf("Should not return anything, but got %v", nothing)
|
|
}
|
|
}
|