feat: flagd gherkin suite and flags

Signed-off-by: Todd Baert <[email protected]>

flags/custom-ops.json

@@ -0,0 +1,104 @@
+{
+  "flags": {
+    "fractional-flag": {
+      "state": "ENABLED",
+      "variants": {
+        "clubs": "clubs",
+        "diamonds": "diamonds",
+        "hearts": "hearts",
+        "spades": "spades",
+        "wild": "wild"
+      },
+      "defaultVariant": "wild",
+      "targeting": {
+        "fractional": [
+          { "var": "user.name" },
+          [ "clubs", 25 ],
+          [ "diamonds", 25 ],
+          [ "hearts", 25 ],
+          [ "spades", 25 ]
+        ]
+      }
+    },
+    "starts-ends-flag": {
+      "state": "ENABLED",
+      "variants": {
+        "prefix": "prefix",
+        "postfix": "postfix",
+        "none": "none"
+      },
+      "defaultVariant": "none",
+      "targeting": {
+        "if": [
+          {
+            "starts_with": [{"var": "id"}, "abc"]
+          },
+          "prefix", {
+            "if": [
+              {
+                "ends_with": [{"var": "id"}, "xyz"]
+              },
+              "postfix", "none"
+            ]
+          }
+        ]
+      }
+    },
+    "equal-greater-lesser-version-flag": {
+      "state": "ENABLED",
+      "variants": {
+        "equal": "equal",
+        "greater": "greater",
+        "lesser": "lesser",
+        "invalid": "invalid"
+      },
+      "defaultVariant": "invalid",
+      "targeting": {
+        "if": [
+          {
+            "sem_ver": [{"var": "version"}, "=", "2.0.0"]
+          },
+          "equal", {
+            "if": [
+              {
+                "sem_ver": [{"var": "version"}, ">", "2.0.0"]
+              },
+              "greater", {
+                "if": [
+                  {
+                    "sem_ver": [{"var": "version"}, "<", "2.0.0"]
+                  },
+                  "lesser", "none"
+                ]
+              }
+            ]
+          }
+        ]
+      }
+    },
+    "major-minor-version-flag": {
+      "state": "ENABLED",
+      "variants": {
+        "minor": "minor",
+        "major": "major",
+        "none": "none"
+      },
+      "defaultVariant": "none",
+      "targeting": {
+        "if": [
+          {
+            "sem_ver": [{"var": "version"}, "~", "3.0.0"]
+          },
+          "minor", {
+            "if": [
+              {
+                "sem_ver": [{"var": "version"}, "^", "3.0.0"]
+              },
+              "major", "none"
+            ]
+          }
+        ]
+      }
+    }
+  }
+}

gherkin/flagd.feature

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+Feature: flagd providers
+
+# This test suite contains scenarios to test flagd providers (both RPC and in-process).
+# It's associated with the flags configured in flags/custom-ops.json and flags/zero-flags.json
+# It should be used in conjunection with the suites supplied by the OpenFeature specification
+
+  Background:
+    Given a flagd provider is set
+
+  # events
+  Scenario: Provider ready event
+    When a PROVIDER_READY handler is added
+    Then the PROVIDER_READY handler must run
+
+  Scenario: Flag change event
+    When a PROVIDER_CONFIGURATION_CHANGED handler is added
+    And a flag with key "changing-flag" is modified
+    Then the PROVIDER_CONFIGURATION_CHANGED handler must run
+    And the event details must indicate "changing-flag" was altered
+
+  # zero evaluation
+  Scenario: Resolves boolean zero value
+    When a boolean flag with key "boolean-zero" is evaluated with default value "true"
+    Then the resolved boolean value should be "false"
+
+  Scenario: Resolves string zero value
+    When a string flag with key "string-zero" is evaluated with default value "hi"
+    Then the resolved string value should be ""
+
+  Scenario: Resolves integer zero value
+    When an integer flag with key "integer-zero" is evaluated with default value 1
+    Then the resolved integer value should be 0
+
+  Scenario: Resolves float zero value
+    When a float flag with key "float-flag" is evaluated with default value 0.1
+    Then the resolved float value should be 0.0
+
+  # custom operators
+  Scenario Outline: Fractional operator
+    When a string flag with key "fractional-flag" is evaluated with default value "fallback"
+    And a context containing a nested property with outer key "user" and inner key "name", with value <name>
+    Then the returned value should be <value>
+    Examples:
+      |name|value|
+      |jack|clubs|
+      |queen|diamonds|
+      |ace|hearts|
+      |joker|spades|
+
+  Scenario Outline: Substring operators
+    When a string flag with key "starts-ends-flag" is evaluated with default value "fallback"
+    And a context containing a key "id", with value <id>
+    Then the returned value should be <value>
+    Examples:
+      |id|value|
+      |abcdef|prefix|
+      |uvwxyz|postfix|
+      |abcxyz|prefix|
+      |lmnopq|nomatch|
+
+  Scenario Outline: Semantic version operator numeric comparision
+    When a string flag with key "equal-greater-lesser-version-flag" is evaluated with default value "fallback"
+    And a context containing a key "version", with value <version>
+    Then the returned value should be <value>
+    Examples:
+      |version|value|
+      |2.0.0|equal|
+      |2.1.0|greater|
+      |1.9.0|lesser|
+      |2.0.0-alpha|lesser|
+      |2.0.0.0|invalid|
+
+  Scenario Outline: Semantic version operator semantic comparision
+    When a string flag with key "major-minor-version-flag" is evaluated with default value "fallback"
+    And a context containing a key "version", with value <version>
+    Then the returned value should be <value>
+    Examples:
+      |version|value|
+      |3.0.1|minor|
+      |3.1.0|major|
+      |4.0.0|none|