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templating: adding fieldFrom helper function to retrieve a field from…
… a previous expression (#210) `field` templating helper function allow to retrieve a key into a map[string], even if the key is not a valid templating keyword. `fieldFrom` provides the same feature, expect that it doesn't use the values map from the task/resolution/steps, but use the previous templating pipeline as a templating source. Closes #200 Signed-off-by: Romain Beuque <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,39 @@ | ||
| package values_test | ||
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| import ( | ||
| "testing" | ||
|
|
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| "github.com/ghodss/yaml" | ||
| "github.com/maxatome/go-testdeep/td" | ||
| "github.com/ovh/utask/engine/values" | ||
| ) | ||
|
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| func TestTmpl(t *testing.T) { | ||
| input := `"step": | ||
| "first": | ||
| "output": | ||
| "result": | ||
| "my-payload": "{\"common-name\":\"utask.example.org\",\"id\":32,\"foo\":{\"bar\":1}}"` | ||
| obj := map[string]map[string]map[string]map[string]interface{}{} | ||
| err := yaml.Unmarshal([]byte(input), &obj) | ||
| td.CmpNil(t, err) | ||
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| v := values.NewValues() | ||
| v.SetOutput("first", obj["step"]["first"]["output"]) | ||
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| output, err := v.Apply("{{ field `step` `first` `output` `result` `my-payload` }}", nil, "foo") | ||
| td.CmpNil(t, err) | ||
| td.Cmp(t, string(output), "{\"common-name\":\"utask.example.org\",\"id\":32,\"foo\":{\"bar\":1}}") | ||
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| output, err = v.Apply("{{ field `step` `first` `output` `result` `my-payload` | fromJson | fieldFrom `common-name` }}", nil, "foo") | ||
| td.CmpNil(t, err) | ||
| td.Cmp(t, string(output), "utask.example.org") | ||
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| output, err = v.Apply("{{ field `step` `first` `output` `result` `my-payload` | fromJson | fieldFrom `foo` `bar` }}", nil, "foo") | ||
| td.CmpNil(t, err) | ||
| td.Cmp(t, string(output), "1") | ||
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| output, err = v.Apply("{{ `{\"common-name\":\"utask.example.org\",\"id\":32}` | fromJson | fieldFrom `invalid` | default `example.org` }}", nil, "foo") | ||
| td.CmpNil(t, err) | ||
| td.Cmp(t, string(output), "example.org") | ||
| } |
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