feat: add selector tests (#221)

Signed-off-by: Simon Schrottner <simon.schrottner@dynatrace.com>

flags/selector-flags.json

@@ -0,0 +1,12 @@
+{
+  "flags": {
+    "selector-flag": {
+      "state": "ENABLED",
+      "variants": {
+        "foo": "foo",
+        "bar": "bar"
+      },
+      "defaultVariant": "foo"
+    }
+  }
+}

gherkin/selector.feature

@@ -0,0 +1,23 @@
+@in-process
+Feature: flagd selector
+
+  Background:
+    Given an option "selector" of type "String" with value "rawflags/selector-flags.json"
+    And a stable flagd provider
+
+  Scenario Outline: Flags not found
+    Given a <type>-flag with key "<key>" and a default value "<default>"
+    When the flag was evaluated with details
+    Then the reason should be "ERROR"
+
+    Examples:
+      | key          | type    | default |
+      | boolean-flag | Boolean | false   |
+      | string-flag  | String  | bye     |
+      | integer-flag | Integer | 1       |
+      | float-flag   | Float   | 0.1     |
+
+  Scenario: Resolve values
+    Given a String-flag with key "selector-flag" and a default value "foo"
+    When the flag was evaluated with details
+    Then the reason should be "STATIC"

launchpad/configs/default.json

@@ -3,6 +3,10 @@
     {
       "uri": "flags/allFlags.json",
       "provider": "file"
+    },
+    {
+      "uri": "rawflags/selector-flags.json",
+      "provider": "file"
     }
   ]
 }

launchpad/configs/ssl.json

@@ -5,6 +5,10 @@
     {
       "uri": "flags/allFlags.json",
       "provider": "file"
+    },
+    {
+      "uri": "rawflags/selector-flags.json",
+      "provider": "file"
     }
   ]
 }

launchpad/main.go

@@ -229,7 +229,7 @@ func CombineJSONFiles() error {
 
 	for _, file := range files {
 		fmt.Printf("read JSON %s\n", file.Name())
-		if filepath.Ext(file.Name()) == ".json" {
+		if filepath.Ext(file.Name()) == ".json" && file.Name() != "selector-flags.json" {
 			filePath := filepath.Join(inputDir, file.Name())
 			content, err := ioutil.ReadFile(filePath)
 			if err != nil {