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Move config loading out of main and add tests for it (#413)
The loading of config was previously untested.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| // Copyright (c) 2016-2019 Cristian Măgherușan-Stanciu | ||
| // Licensed under the Open Software License version 3.0 | ||
|
|
||
| package autospotting | ||
|
|
||
| import ( | ||
| "os" | ||
| "strings" | ||
| "testing" | ||
| "time" | ||
|
|
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| "gotest.tools/v3/assert" | ||
| ) | ||
|
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| func TestParseConfig(t *testing.T) { | ||
| tests := []struct { | ||
| name string | ||
| environment map[string]string | ||
| }{ | ||
| { | ||
| name: "default settings", | ||
| }, | ||
| { | ||
| name: "with AWS_REGION set", | ||
| environment: map[string]string{ | ||
| "AWS_REGION": "us-west-2", | ||
| }, | ||
| }, | ||
| { | ||
| name: "with LICENSE set", | ||
| environment: map[string]string{ | ||
| "LICENSE": "I_built_it_from_source_code", | ||
| }, | ||
| }, | ||
| } | ||
|
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| // save copy of environment before we run any tests | ||
| envVars := make(map[string]string) | ||
| for _, item := range os.Environ() { | ||
| e := strings.SplitN(item, "=", 2) | ||
| envVars[e[0]] = e[1] | ||
| } | ||
|
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| for _, tt := range tests { | ||
| if tt.environment != nil { | ||
| for key, value := range tt.environment { | ||
| os.Setenv(key, value) | ||
| } | ||
| } | ||
|
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| t.Run(tt.name, func(t *testing.T) { | ||
| config := Config{} | ||
| ParseConfig(&config) | ||
|
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| if tt.environment != nil { | ||
| if tt.environment["AWS_REGION"] != "" { | ||
| assert.Equal(t, config.MainRegion, tt.environment["AWS_REGION"]) | ||
| } else { | ||
| assert.Equal(t, config.MainRegion, "us-east-1", "MainRegion should default to us-east-1") | ||
| } | ||
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| if tt.environment["LICENSE"] != "" { | ||
| assert.Equal(t, config.LicenseType, tt.environment["LICENSE"]) | ||
| } | ||
| } | ||
|
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| assert.Equal(t, config.LogFile, os.Stdout) | ||
| assert.Equal(t, config.SleepMultiplier, time.Duration(1)) | ||
| assert.Assert(t, config.InstanceData != nil, "expected InstanceData to be initialized") | ||
| }) | ||
|
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| // reset environment variables | ||
| if tt.environment != nil { | ||
| for name := range tt.environment { | ||
| os.Setenv(name, envVars[name]) | ||
| } | ||
| } | ||
| } | ||
| } |
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