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Merge pull request #1067 from Scalingo/fix/1065/otel-add-unit-tests
test(otel): Add unit test for otel package
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,77 @@ | ||
| package otel | ||
|
|
||
| import ( | ||
| "context" | ||
| "sync" | ||
| "testing" | ||
|
|
||
| "github.com/stretchr/testify/assert" | ||
| "github.com/stretchr/testify/require" | ||
| ) | ||
|
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| func TestNew(t *testing.T) { | ||
| tests := []struct { | ||
| name string | ||
| reinit bool | ||
| env map[string]string | ||
| expectError string | ||
| }{ | ||
| { | ||
| name: "initialization without service_name defined should result in error", | ||
| expectError: "required key OTEL_SERVICE_NAME missing value", | ||
| }, | ||
| { | ||
| name: "minimal initialization", | ||
| env: map[string]string{ | ||
| "OTEL_SERVICE_NAME": "test", | ||
| }, | ||
| }, | ||
| { | ||
| name: "re-initialization to check singleton usage", | ||
| reinit: true, | ||
| env: map[string]string{ | ||
| "OTEL_SERVICE_NAME": "test", | ||
| }, | ||
| }, | ||
| } | ||
|
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| for _, test := range tests { | ||
| t.Run(test.name, func(t *testing.T) { | ||
| t.Cleanup(func() { | ||
| globalProviders = nil | ||
| globalOnce = sync.Once{} | ||
| }) | ||
|
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| ctx := context.Background() | ||
|
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| if test.env != nil { | ||
| for k, v := range test.env { | ||
| t.Setenv(k, v) | ||
| } | ||
| } | ||
|
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| err := New(ctx) | ||
| if test.expectError != "" { | ||
| require.Error(t, err) | ||
| assert.Contains(t, err.Error(), test.expectError) | ||
|
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| require.Nil(t, globalProviders) | ||
| } else { | ||
| require.NoError(t, err) | ||
|
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| require.NotNil(t, globalProviders) | ||
| assert.NotNil(t, globalProviders.meterProvider) | ||
|
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| // Check when reinitializing the SDK | ||
| if test.reinit { | ||
| previousGlobalProviders := *globalProviders | ||
|
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| err = New(ctx) | ||
| require.NoError(t, err) | ||
| // Check that pointer are the same | ||
| assert.Equal(t, previousGlobalProviders, *globalProviders) | ||
| } | ||
| } | ||
| }) | ||
| } | ||
| } |