Add typesafe provider unit tests

archaius2-typesafe/build.gradle

@@ -19,6 +19,8 @@ apply plugin: 'java'
 dependencies {
     compile     project(':archaius2-core')
     compile     'com.typesafe:config:1.2.1'
+
+    testCompile project(':archaius2-guice')
 }
 
 eclipse {

archaius2-typesafe/src/test/java/com/netflix/archaius/typesafe/dynamic/DynamicTypesafeConfigTest.java

@@ -0,0 +1,105 @@
+package com.netflix.archaius.typesafe.dynamic;
+
+import com.google.inject.Guice;
+import com.google.inject.Injector;
+import com.google.inject.Scopes;
+import com.netflix.archaius.api.Config;
+import com.netflix.archaius.api.exceptions.ConfigException;
+import com.netflix.archaius.api.inject.RemoteLayer;
+import com.netflix.archaius.guice.ArchaiusModule;
+import com.typesafe.config.ConfigFactory;
+import org.junit.Test;
+
+import java.util.function.Supplier;
+
+import static org.junit.Assert.assertEquals;
+
+public class DynamicTypesafeConfigTest {
+
+    @Test
+    public void test() throws ConfigException {
+        final TypesafeClientConfig config = new DefaultTypesafeClientConfig.Builder()
+                .withConfigFilePath(getResourceUrl("dynamic/reference.conf"))
+                .withRefreshIntervalMs(100)
+                .build();
+
+        Injector injector = Guice.createInjector(
+                new ArchaiusModule() {
+                    @Override
+                    protected void configureArchaius() {
+                        bind(TypesafeClientConfig.class).toInstance(config);
+                        bind(Config.class)
+                                .annotatedWith(RemoteLayer.class)
+                                .toProvider(TypesafeConfigProvider.class)
+                                .in(Scopes.SINGLETON);
+                    }
+                });
+
+        SampleAppConfig appConfig = injector.getInstance(SampleAppConfig.class);
+
+        assertEquals("app name", appConfig.name);
+        assertEquals(true, appConfig.flag);
+        assertEquals(111, appConfig.number.intValue());
+    }
+
+    @Test
+    public void testDynamicConfigChange() throws ConfigException, InterruptedException {
+        String[] configPath = new String[] {"dynamic/reference.conf"};
+
+        final TypesafeClientConfig config = new TypesafeClientConfig() {
+            @Override
+            public boolean isEnabled() {
+                return true;
+            }
+
+            @Override
+            public int getRefreshRateMs() {
+                return 200;
+            }
+
+            @Override
+            public String getTypesafeConfigPath() {
+                return configPath[0];
+            }
+
+            @Override
+            public Supplier<com.typesafe.config.Config> getTypesafeConfigSupplier() {
+                return () -> {
+                    String typesafeConfigPath = getTypesafeConfigPath();
+                    System.out.println("Load from: " + typesafeConfigPath);
+                    return ConfigFactory.load(typesafeConfigPath);
+                };
+            }
+        };
+
+        Injector injector = Guice.createInjector(
+                new ArchaiusModule() {
+                    @Override
+                    protected void configureArchaius() {
+                        bind(TypesafeClientConfig.class).toInstance(config);
+                        bind(Config.class)
+                                .annotatedWith(RemoteLayer.class)
+                                .toProvider(TypesafeConfigProvider.class)
+                                .in(Scopes.SINGLETON);
+                    }
+                });
+
+        SampleAppConfig appConfig = injector.getInstance(SampleAppConfig.class);
+        assertEquals("app name", appConfig.name);
+        assertEquals(true, appConfig.flag);
+        assertEquals(111, appConfig.number.intValue());
+
+        // Simulate configuration update at runtime.
+        configPath[0] = "dynamic/updated.conf";
+        Thread.sleep(400);
+
+        SampleAppConfig updatedAppConfig = injector.getInstance(SampleAppConfig.class);
+        assertEquals("updated app name", updatedAppConfig.name);
+        assertEquals(false, updatedAppConfig.flag);
+        assertEquals(222, updatedAppConfig.number.intValue());
+    }
+
+    private String getResourceUrl(String resourceName) {
+        return "file://" + getClass().getClassLoader().getResource(resourceName).getPath();
+    }
+}

archaius2-typesafe/src/test/java/com/netflix/archaius/typesafe/dynamic/SampleAppConfig.java

@@ -0,0 +1,11 @@
+package com.netflix.archaius.typesafe.dynamic;
+
+import com.netflix.archaius.api.annotations.Configuration;
+
+@Configuration(prefix = "app", allowFields = true)
+public class SampleAppConfig {
+
+    public String name;
+    public Boolean flag;
+    public Integer number;
+}

archaius2-typesafe/src/test/resources/dynamic/reference.conf

@@ -0,0 +1,5 @@
+app {
+    name: "app name"
+    flag: true
+    number: 111
+}

archaius2-typesafe/src/test/resources/dynamic/updated.conf

@@ -0,0 +1,5 @@
+app {
+    name: "updated app name"
+    flag: false
+    number: 222
+}