92 lines
2.7 KiB
Go
92 lines
2.7 KiB
Go
// Copyright 2021 Google Inc. All rights reserved.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package config
|
|
|
|
import (
|
|
"testing"
|
|
)
|
|
|
|
func TestExpandVars(t *testing.T) {
|
|
testCases := []struct {
|
|
description string
|
|
exportedVars map[string]variableValue
|
|
toExpand string
|
|
expectedValues []string
|
|
}{
|
|
{
|
|
description: "single level expansion",
|
|
exportedVars: map[string]variableValue{
|
|
"foo": variableValue([]string{"bar"}),
|
|
},
|
|
toExpand: "${foo}",
|
|
expectedValues: []string{"bar"},
|
|
},
|
|
{
|
|
description: "double level expansion",
|
|
exportedVars: map[string]variableValue{
|
|
"foo": variableValue([]string{"${bar}"}),
|
|
"bar": variableValue([]string{"baz"}),
|
|
},
|
|
toExpand: "${foo}",
|
|
expectedValues: []string{"baz"},
|
|
},
|
|
{
|
|
description: "double level expansion with a literal",
|
|
exportedVars: map[string]variableValue{
|
|
"a": variableValue([]string{"${b}", "c"}),
|
|
"b": variableValue([]string{"d"}),
|
|
},
|
|
toExpand: "${a}",
|
|
expectedValues: []string{"d", "c"},
|
|
},
|
|
{
|
|
description: "double level expansion, with two variables in a string",
|
|
exportedVars: map[string]variableValue{
|
|
"a": variableValue([]string{"${b} ${c}"}),
|
|
"b": variableValue([]string{"d"}),
|
|
"c": variableValue([]string{"e"}),
|
|
},
|
|
toExpand: "${a}",
|
|
expectedValues: []string{"d", "e"},
|
|
},
|
|
{
|
|
description: "triple level expansion with two variables in a string",
|
|
exportedVars: map[string]variableValue{
|
|
"a": variableValue([]string{"${b} ${c}"}),
|
|
"b": variableValue([]string{"${c}", "${d}"}),
|
|
"c": variableValue([]string{"${d}"}),
|
|
"d": variableValue([]string{"foo"}),
|
|
},
|
|
toExpand: "${a}",
|
|
expectedValues: []string{"foo", "foo", "foo"},
|
|
},
|
|
}
|
|
|
|
for _, testCase := range testCases {
|
|
t.Run(testCase.description, func(t *testing.T) {
|
|
output := expandVar(testCase.toExpand, testCase.exportedVars)
|
|
if len(output) != len(testCase.expectedValues) {
|
|
t.Errorf("Expected %d values, got %d", len(testCase.expectedValues), len(output))
|
|
}
|
|
for i, actual := range output {
|
|
expectedValue := testCase.expectedValues[i]
|
|
if actual != expectedValue {
|
|
t.Errorf("Actual value '%s' doesn't match expected value '%s'", actual, expectedValue)
|
|
}
|
|
}
|
|
})
|
|
}
|
|
}
|