88 lines
2.1 KiB
Go
88 lines
2.1 KiB
Go
package templates
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import (
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"errors"
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"os"
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"testing"
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"github.com/evcc-io/evcc/util"
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"github.com/jinzhu/copier"
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"gopkg.in/yaml.v3"
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)
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// Instance is an actual instantiated template
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type Instance struct {
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Type string
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Other map[string]interface{} `yaml:",inline"`
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}
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// RenderInstance renders an actual configuration instance
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func RenderInstance(class Class, other map[string]interface{}) (Instance, error) {
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var cc struct {
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Template string
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Other map[string]interface{} `mapstructure:",remain"`
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}
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if err := util.DecodeOther(other, &cc); err != nil {
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return *new(Instance), err
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}
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tmpl, err := ByName(class, cc.Template)
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if err != nil {
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return *new(Instance), err
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}
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b, _, err := tmpl.RenderResult(TemplateRenderModeInstance, other)
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if err != nil {
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return *new(Instance), err
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}
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var instance Instance
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if err = yaml.Unmarshal(b, &instance); err == nil && instance.Type == "" {
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err = errors.New("empty instance type- check for missing usage")
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}
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return instance, err
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}
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// RenderTest renders and instantiates plus yaml-parses the template per usage
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func RenderTest(t *testing.T, tmpl Template, values map[string]interface{}, cb func(values map[string]interface{})) {
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t.Run(tmpl.Template, func(t *testing.T) {
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t.Parallel()
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_, values, err := tmpl.RenderResult(TemplateRenderModeUnitTest, values)
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if err != nil {
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t.Log(tmpl.Render)
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t.Error(err)
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}
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// instantiate all usage variants
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for _, u := range tmpl.Usages() {
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t.Run(u, func(t *testing.T) {
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// t.Parallel()
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// create a copy of the map for parallel execution
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usageValues := make(map[string]interface{}, len(values)+1)
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if err := copier.Copy(&usageValues, values); err != nil {
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panic(err)
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}
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usageValues[ParamUsage] = u
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b, _, err := tmpl.RenderResult(TemplateRenderModeInstance, usageValues)
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if err != nil {
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t.Errorf("usage: %s, result: %v", u, err)
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}
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var instance interface{}
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if err := yaml.Unmarshal(b, &instance); err != nil {
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t.Errorf("usage: %s, yaml: %v", u, err)
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}
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// actually run the instance if not on CI
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if os.Getenv("CI") == "" {
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cb(usageValues)
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}
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})
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}
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})
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}
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