SystemEnvironmentConfigDataResourceTests Class — spring-boot Architecture

Source Code

core/spring-boot/src/test/java/org/springframework/boot/context/config/SystemEnvironmentConfigDataResourceTests.java lines 38–88

class SystemEnvironmentConfigDataResourceTests {

	private Map<String, String> environment = new HashMap<>();

	private final YamlPropertySourceLoader yamlLoader = new YamlPropertySourceLoader();

	private final PropertiesPropertySourceLoader propertiesLoader = new PropertiesPropertySourceLoader();

	@Test
	void loadLoadsPropertySources() throws IOException {
		this.environment.put("VAR1", "key1=value1");
		List<PropertySource<?>> loaded = createResource("VAR1").load();
		assertThat(loaded).hasSize(1);
		assertThat(loaded.get(0).getProperty("key1")).isEqualTo("value1");
	}

	@Test
	void loadWhenNoContentReturnsNull() throws IOException {
		List<PropertySource<?>> loaded = createResource("VAR1").load();
		assertThat(loaded).isNull();
	}

	@Test
	void equalsAndHashcode() {
		SystemEnvironmentConfigDataResource var1 = createResource("VAR1");
		SystemEnvironmentConfigDataResource var2 = createResource("VAR2");
		SystemEnvironmentConfigDataResource var3 = createResource("VAR1", this.yamlLoader);
		SystemEnvironmentConfigDataResource var4 = createResource("VAR1");
		assertThat(var1).isNotEqualTo(var2);
		assertThat(var1).isNotEqualTo(var3);
		assertThat(var1).isEqualTo(var4);
		assertThat(var1).hasSameHashCodeAs(var4);
	}

	@Test
	void toStringReturnsString() {
		SystemEnvironmentConfigDataResource resource = createResource("VAR1");
		assertThat(resource)
			.hasToString("system environment variable [VAR1] content loaded using PropertiesPropertySourceLoader");
	}

	private SystemEnvironmentConfigDataResource createResource(String variableName) {
		return createResource(variableName, this.propertiesLoader);
	}

	private SystemEnvironmentConfigDataResource createResource(String variableName,
			PropertySourceLoader propertySourceLoader) {
		return new SystemEnvironmentConfigDataResource(variableName, propertySourceLoader, this.environment::get, null);
	}

}