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feat: Add new test suite for context merging (#293)
## This PR Adds gherkin tests to verify the merging order of contexts: https://openfeature.dev/specification/sections/evaluation-context/#requirement-323 See open-feature/flagd-testbed#13 --------- Signed-off-by: christian.lutnik <[email protected]> Co-authored-by: Todd Baert <[email protected]>
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‎specification/assets/gherkin/contextMerging.feature

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Feature: Context merging precedence
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Background:
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Given a stable provider with retrievable context is registered
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Scenario Outline: A context entry is added to a single level
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Given A context entry with key "key" and value "value" is added to the "<level>" level
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When Some flag was evaluated
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Then The merged context contains an entry with key "key" and value "value"
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@transaction
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Examples:
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| level |
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| API |
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| Transaction |
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| Client |
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| Invocation |
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@hooks
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Examples:
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| level |
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| API |
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| Client |
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| Invocation |
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| Before Hooks |
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@hooks @transaction
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Examples:
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| level |
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| API |
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| Transaction |
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| Client |
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| Invocation |
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| Before Hooks |
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@transaction
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Scenario: A context entry is added to each level with different keys
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Given A context entry with key "API" and value "API value" is added to the "API" level
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And A context entry with key "Transaction" and value "Transaction value" is added to the "Transaction" level
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And A context entry with key "Client" and value "Client value" is added to the "Client" level
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And A context entry with key "Invocation" and value "Invocation value" is added to the "Invocation" level
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When Some flag was evaluated
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Then The merged context contains an entry with key "API" and value "API value"
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And The merged context contains an entry with key "Transaction" and value "Transaction value"
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And The merged context contains an entry with key "Client" and value "Client value"
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And The merged context contains an entry with key "Invocation" and value "Invocation value"
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@hooks
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Scenario: A context entry is added to each level with different keys
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Given A context entry with key "API" and value "API value" is added to the "API" level
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And A context entry with key "Client" and value "Client value" is added to the "Client" level
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And A context entry with key "Invocation" and value "Invocation value" is added to the "Invocation" level
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And A context entry with key "Before Hooks" and value "Before Hooks value" is added to the "Before Hooks" level
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When Some flag was evaluated
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Then The merged context contains an entry with key "API" and value "API value"
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And The merged context contains an entry with key "Client" and value "Client value"
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And The merged context contains an entry with key "Invocation" and value "Invocation value"
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And The merged context contains an entry with key "Before Hooks" and value "Before Hooks value"
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@hooks @transaction
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Scenario: A context entry is added to each level with different keys
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Given A context entry with key "API" and value "API value" is added to the "API" level
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And A context entry with key "Transaction" and value "Transaction value" is added to the "Transaction" level
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And A context entry with key "Client" and value "Client value" is added to the "Client" level
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And A context entry with key "Invocation" and value "Invocation value" is added to the "Invocation" level
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And A context entry with key "Before Hooks" and value "Before Hooks value" is added to the "Before Hooks" level
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When Some flag was evaluated
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Then The merged context contains an entry with key "API" and value "API value"
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And The merged context contains an entry with key "Transaction" and value "Transaction value"
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And The merged context contains an entry with key "Client" and value "Client value"
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And The merged context contains an entry with key "Invocation" and value "Invocation value"
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And The merged context contains an entry with key "Before Hooks" and value "Before Hooks value"
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@transaction
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Scenario Outline: A context entry in one level overwrites values with the same key from preceding levels
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Given A table with levels of increasing precedence
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| API |
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| Transaction |
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| Client |
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| Invocation |
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And Context entries for each level from API level down to the "<level>" level, with key "key" and value "<level>"
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When Some flag was evaluated
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Then The merged context contains an entry with key "key" and value "<level>"
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Examples:
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| level |
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| API |
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| Transaction |
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| Client |
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| Invocation |
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@hooks
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Scenario Outline: A context entry in one level overwrites values with the same key from preceding levels
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Given A table with levels of increasing precedence
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| API |
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| Client |
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| Invocation |
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| Before Hooks |
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And Context entries for each level from API level down to the "<level>" level, with key "key" and value "<level>"
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When Some flag was evaluated
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Then The merged context contains an entry with key "key" and value "<level>"
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Examples:
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| level |
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| API |
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| Client |
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| Invocation |
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| Before Hooks |
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@hooks @transaction
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Scenario Outline: A context entry in one level overwrites values with the same key from preceding levels
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Given A table with levels of increasing precedence
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| API |
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| Transaction |
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| Client |
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| Invocation |
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| Before Hooks |
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And Context entries for each level from API level down to the "<level>" level, with key "key" and value "<level>"
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When Some flag was evaluated
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Then The merged context contains an entry with key "key" and value "<level>"
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Examples:
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| level |
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| API |
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| Transaction |
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| Client |
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| Invocation |
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| Before Hooks |

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