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849f27d11f
Make template specific functions private to ensure they not misused and make unit tests simpler. We may export the template helpers later if needed. This lays the foundation for the new chart pipeline. Signed-off-by: Adam Reese <adam@reese.io>
77 lines
2.2 KiB
Go
77 lines
2.2 KiB
Go
/*
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Copyright The Helm Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package engine
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import (
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"strings"
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"testing"
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"text/template"
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"github.com/stretchr/testify/assert"
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)
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func TestFuncs(t *testing.T) {
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//TODO write tests for failure cases
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tests := []struct {
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tpl, expect string
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vars interface{}
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}{{
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tpl: `All {{ required "A valid 'bases' is required" .bases }} of them!`,
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expect: `All 2 of them!`,
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vars: map[string]interface{}{"bases": 2},
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}, {
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tpl: `{{ toYaml . }}`,
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expect: `foo: bar`,
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vars: map[string]interface{}{"foo": "bar"},
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}, {
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tpl: `{{ toToml . }}`,
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expect: "foo = \"bar\"\n",
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vars: map[string]interface{}{"foo": "bar"},
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}, {
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tpl: `{{ toJson . }}`,
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expect: `{"foo":"bar"}`,
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vars: map[string]interface{}{"foo": "bar"},
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}, {
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tpl: `{{ fromYaml . }}`,
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expect: "map[hello:world]",
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vars: `hello: world`,
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}, {
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// Regression for https://github.com/helm/helm/issues/2271
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tpl: `{{ toToml . }}`,
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expect: "[mast]\n sail = \"white\"\n",
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vars: map[string]map[string]string{"mast": {"sail": "white"}},
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}, {
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tpl: `{{ fromYaml . }}`,
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expect: "map[Error:yaml: unmarshal errors:\n line 1: cannot unmarshal !!seq into map[string]interface {}]",
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vars: "- one\n- two\n",
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}, {
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tpl: `{{ fromJson .}}`,
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expect: `map[hello:world]`,
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vars: `{"hello":"world"}`,
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}, {
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tpl: `{{ fromJson . }}`,
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expect: `map[Error:json: cannot unmarshal array into Go value of type map[string]interface {}]`,
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vars: `["one", "two"]`,
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}}
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for _, tt := range tests {
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var b strings.Builder
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err := template.Must(template.New("test").Funcs(funcMap()).Parse(tt.tpl)).Execute(&b, tt.vars)
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assert.NoError(t, err)
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assert.Equal(t, tt.expect, b.String(), tt.tpl)
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}
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}
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