test: JSON deserialisation tests

src/test/java/com/octopus/openfeature/provider/FeatureToggleEvaluationDeserializationTests.java

@@ -0,0 +1,82 @@
+package com.octopus.openfeature.provider;
+
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.junit.jupiter.api.Test;
+
+import java.io.InputStream;
+import java.util.List;
+import java.util.Map;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+class FeatureToggleEvaluationDeserializationTests {
+
+    private final ObjectMapper objectMapper = new ObjectMapper();
+
+    private InputStream resource(String name) {
+        return getClass().getResourceAsStream(name);
+    }
+
+    @Test
+    void shouldDeserializeEnabledToggle() throws Exception {
+        FeatureToggleEvaluation result = objectMapper.readValue(
+                resource("toggle-enabled-no-segments.json"), FeatureToggleEvaluation.class);
+
+        assertThat(result.getName()).isEqualTo("My Feature");
+        assertThat(result.getSlug()).isEqualTo("my-feature");
+        assertThat(result.isEnabled()).isTrue();
+        assertThat(result.getSegments()).isEmpty();
+    }
+
+    @Test
+    void shouldDeserializeDisabledToggle() throws Exception {
+        FeatureToggleEvaluation result = objectMapper.readValue(
+                resource("toggle-disabled.json"), FeatureToggleEvaluation.class);
+
+        assertThat(result.isEnabled()).isFalse();
+    }
+
+    @Test
+    void shouldDeserializeToggleWithMissingSegmentsField() throws Exception {
+        FeatureToggleEvaluation result = objectMapper.readValue(
+                resource("toggle-missing-segments.json"), FeatureToggleEvaluation.class);
+
+        assertThat(result.getSegments()).isNotNull().isEmpty();
+    }
+
+    @Test
+    void shouldDeserializeToggleWithSegments() throws Exception {
+        FeatureToggleEvaluation result = objectMapper.readValue(
+                resource("toggle-with-segments.json"), FeatureToggleEvaluation.class);
+
+        assertThat(result.getSegments()).hasSize(2);
+        assertThat(result.getSegments()).contains(
+                Map.entry("license-type", "free"),
+                Map.entry("country", "au")
+        );
+    }
+
+    @Test
+    void shouldDeserializeListOfToggles() throws Exception {
+        List<FeatureToggleEvaluation> result = objectMapper.readValue(
+                resource("toggle-list.json"), new TypeReference<List<FeatureToggleEvaluation>>() {});
+
+        assertThat(result).hasSize(2);
+        assertThat(result.get(0).getSlug()).isEqualTo("feature-a");
+        assertThat(result.get(0).isEnabled()).isTrue();
+        assertThat(result.get(1).getSlug()).isEqualTo("feature-b");
+        assertThat(result.get(1).isEnabled()).isFalse();
+    }
+
+    @Test
+    void shouldIgnoreExtraneousProperties() throws Exception {
+        FeatureToggleEvaluation result = objectMapper.readValue(
+                resource("toggle-with-extraneous-properties.json"), FeatureToggleEvaluation.class);
+
+        assertThat(result.getName()).isEqualTo("My Feature");
+        assertThat(result.getSlug()).isEqualTo("my-feature");
+        assertThat(result.isEnabled()).isTrue();
+        assertThat(result.getSegments()).isEmpty();
+    }
+}

src/test/resources/com/octopus/openfeature/provider/toggle-disabled.json

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+{
+  "name": "My Feature",
+  "slug": "my-feature",
+  "isEnabled": false,
+  "segments": null
+}

src/test/resources/com/octopus/openfeature/provider/toggle-enabled-no-segments.json

@@ -0,0 +1,6 @@
+{
+  "name": "My Feature",
+  "slug": "my-feature",
+  "isEnabled": true,
+  "segments": null
+}

src/test/resources/com/octopus/openfeature/provider/toggle-list.json

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+[
+  {
+    "name": "Feature A",
+    "slug": "feature-a",
+    "isEnabled": true,
+    "segments": null
+  },
+  {
+    "name": "Feature B",
+    "slug": "feature-b",
+    "isEnabled": false,
+    "segments": null
+  }
+]

src/test/resources/com/octopus/openfeature/provider/toggle-missing-segments.json

@@ -0,0 +1,5 @@
+{
+  "name": "My Feature",
+  "slug": "my-feature",
+  "isEnabled": true
+}

src/test/resources/com/octopus/openfeature/provider/toggle-with-segments.json

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+{
+  "name": "My Feature",
+  "slug": "my-feature",
+  "isEnabled": true,
+  "segments": [
+    {
+      "key": "license-type",
+      "value": "free"
+    },
+    {
+      "key": "country",
+      "value": "au"
+    }
+  ]
+}