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https://github.com/gohugoio/hugo.git
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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.
49 lines
1 KiB
Go
49 lines
1 KiB
Go
package hugolib
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import (
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"github.com/stretchr/testify/assert"
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"testing"
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)
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func TestScratchAdd(t *testing.T) {
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scratch := newScratch()
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scratch.Add("int1", 10)
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scratch.Add("int1", 20)
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scratch.Add("int2", 20)
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assert.Equal(t, 30, scratch.Get("int1"))
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assert.Equal(t, 20, scratch.Get("int2"))
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scratch.Add("float1", float64(10.5))
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scratch.Add("float1", float64(20.1))
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assert.Equal(t, float64(30.6), scratch.Get("float1"))
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scratch.Add("string1", "Hello ")
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scratch.Add("string1", "big ")
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scratch.Add("string1", "World!")
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assert.Equal(t, "Hello big World!", scratch.Get("string1"))
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scratch.Add("scratch", scratch)
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_, err := scratch.Add("scratch", scratch)
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if err == nil {
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t.Errorf("Expected error from invalid arithmetic")
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}
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}
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func TestScratchSet(t *testing.T) {
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scratch := newScratch()
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scratch.Set("key", "val")
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assert.Equal(t, "val", scratch.Get("key"))
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}
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func TestScratchGet(t *testing.T) {
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scratch := newScratch()
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nothing := scratch.Get("nothing")
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if nothing != nil {
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t.Errorf("Should not return anything, but got %v", nothing)
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}
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}
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