package ece448.iot_sim; import java.util.List; import java.util.Map; import java.util.TreeMap; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import ece448.iot_sim.http_server.RequestHandler; public class HTTPCommands implements RequestHandler { // Use a map so we can search plugs by name. private final TreeMap<String, PlugSim> plugs = new TreeMap<>(); public HTTPCommands(List<PlugSim> plugs) { for (PlugSim plug: plugs) { this.plugs.put(plug.getName(), plug); } } @Override public String handleGet(String path, Map<String, String> params) { // list all: / // do switch: /plugName?action=on|off|toggle // just report: /plugName logger.info("HTTPCmd {}: {}", path, params); if (path.equals("/")) { return listPlugs(); } PlugSim plug = plugs.get(path.substring(1)); if (plug == null) return null; // no such plug String action = params.get("action"); if (action == null) return report(plug); // P2: add your code here, modify the next line if necessary if("toggle".equals(action)){ plug.toggle(); return report(plug); }else if("on".equals(action)){ plug.switchOn(); return report(plug); }else if("off".equals(action)){ plug.switchOff(); return report(plug); } return "<html><body></body></html>"; } protected String listPlugs() { StringBuilder sb = new StringBuilder(); sb.append("<html><body>"); for (String plugName: plugs.keySet()) { sb.append(String.format("<p><a href='/%s'>%s</a></p>", plugName, plugName)); } sb.append("</body></html>"); return sb.toString(); } protected String report(PlugSim plug) { String name = plug.getName(); return String.format("<html><body>" +"<p>Plug %s is %s.</p>" +"<p>Power reading is %.3f.</p>" +"<p><a href='/%s?action=on'>Switch On</a></p>" +"<p><a href='/%s?action=off'>Switch Off</a></p>" +"<p><a href='/%s?action=toggle'>Toggle</a></p>" +"</body></html>", name, plug.isOn()? "on": "off", plug.getPower(), name, name, name); }如何对上述代码全部功能进行测试呢?请提供测试代码。

时间: 2024-03-25 10:39:49 浏览: 22
以下是一个简单的测试代码,可以测试HTTPCommands类中的所有功能: ``` import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; public class HTTPCommandsTest { public static void main(String[] args) { // Create some plug simulations List<PlugSim> plugs = new ArrayList<>(); plugs.add(new PlugSim("Plug1")); plugs.add(new PlugSim("Plug2")); plugs.add(new PlugSim("Plug3")); // Create an HTTPCommands object and test its methods HTTPCommands commands = new HTTPCommands(plugs); testListPlugs(commands); testReport(commands); testHandleGet(commands); } private static void testListPlugs(HTTPCommands commands) { String expected = "<html><body><p><a href='/Plug1'>Plug1</a></p><p><a href='/Plug2'>Plug2</a></p><p><a href='/Plug3'>Plug3</a></p></body></html>"; String actual = commands.listPlugs(); assert expected.equals(actual) : "testListPlugs failed: expected " + expected + ", but got " + actual; } private static void testReport(HTTPCommands commands) { PlugSim plug = new PlugSim("TestPlug"); plug.switchOn(); plug.setPower(123.456); String expected = "<html><body><p>Plug TestPlug is on.</p><p>Power reading is 123.456.</p><p><a href='/TestPlug?action=on'>Switch On</a></p><p><a href='/TestPlug?action=off'>Switch Off</a></p><p><a href='/TestPlug?action=toggle'>Toggle</a></p></body></html>"; String actual = commands.report(plug); assert expected.equals(actual) : "testReport failed: expected " + expected + ", but got " + actual; } private static void testHandleGet(HTTPCommands commands) { // Test listing all plugs String expected = "<html><body><p><a href='/Plug1'>Plug1</a></p><p><a href='/Plug2'>Plug2</a></p><p><a href='/Plug3'>Plug3</a></p></body></html>"; String actual = commands.handleGet("/", new HashMap<>()); assert expected.equals(actual) : "testHandleGet failed: expected " + expected + ", but got " + actual; // Test reporting a plug PlugSim plug = new PlugSim("TestPlug"); plug.switchOn(); plug.setPower(123.456); expected = "<html><body><p>Plug TestPlug is on.</p><p>Power reading is 123.456.</p><p><a href='/TestPlug?action=on'>Switch On</a></p><p><a href='/TestPlug?action=off'>Switch Off</a></p><p><a href='/TestPlug?action=toggle'>Toggle</a></p></body></html>"; actual = commands.handleGet("/TestPlug", new HashMap<>()); assert expected.equals(actual) : "testHandleGet failed: expected " + expected + ", but got " + actual; // Test switching a plug on plug.switchOff(); expected = "<html><body><p>Plug TestPlug is on.</p><p>Power reading is 0.000.</p><p><a href='/TestPlug?action=on'>Switch On</a></p><p><a href='/TestPlug?action=off'>Switch Off</a></p><p><a href='/TestPlug?action=toggle'>Toggle</a></p></body></html>"; actual = commands.handleGet("/TestPlug", Map.of("action", "on")); assert expected.equals(actual) : "testHandleGet failed: expected " + expected + ", but got " + actual; // Test switching a plug off plug.switchOn(); expected = "<html><body><p>Plug TestPlug is off.</p><p>Power reading is 0.000.</p><p><a href='/TestPlug?action=on'>Switch On</a></p><p><a href='/TestPlug?action=off'>Switch Off</a></p><p><a href='/TestPlug?action=toggle'>Toggle</a></p></body></html>"; actual = commands.handleGet("/TestPlug", Map.of("action", "off")); assert expected.equals(actual) : "testHandleGet failed: expected " + expected + ", but got " + actual; // Test toggling a plug plug.switchOff(); expected = "<html><body><p>Plug TestPlug is on.</p><p>Power reading is 0.000.</p><p><a href='/TestPlug?action=on'>Switch On</a></p><p><a href='/TestPlug?action=off'>Switch Off</a></p><p><a href='/TestPlug?action=toggle'>Toggle</a></p></body></html>"; actual = commands.handleGet("/TestPlug", Map.of("action", "toggle")); assert expected.equals(actual) : "testHandleGet failed: expected " + expected + ", but got " + actual; // Test handling a non-existent plug expected = null; actual = commands.handleGet("/NonExistentPlug", new HashMap<>()); assert expected == actual : "testHandleGet failed: expected " + expected + ", but got " + actual; } } ```

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请逐句解释一下下面的代码import java.util.Arrays; import org.apache.http.client.fluent.Request; import ece448.iot_sim.SimConfig; import ece448.iot_sim.Main; public class GradeP2 { public static void main(String[] args) throws Exception { SimConfig config = new SimConfig( 8080, Arrays.asList("xxxx", "yyyy", "zzzz.789"), null, null, null); try (Main m = new Main(config)) { Grading.run(new GradeP2(), 10); } } private String get(String pathParams) throws Exception { return Request.Get("http://127.0.0.1:8080"+pathParams) .userAgent("Mozilla/5.0") .connectTimeout(1000) .socketTimeout(1000) .execute().returnContent().asString(); } public boolean testCase00() throws Exception { String ret = get("/xxxx"); return (ret.indexOf("xxxx is off") != -1) && (ret.indexOf("xxxx is on") == -1) && (ret.indexOf("Power reading is 0.000") != -1); } public boolean testCase01() throws Exception { String ret = get("/xxxx?action=on"); return (ret.indexOf("xxxx is on") != -1) && (ret.indexOf("xxxx is off") == -1); } public boolean testCase02() throws Exception { String ret = get("/xxxx?action=off"); return (ret.indexOf("xxxx is off") != -1) && (ret.indexOf("xxxx is on") == -1); } public boolean testCase03() throws Exception { String ret = get("/xxxx?action=on"); return (ret.indexOf("xxxx is on") != -1) && (ret.indexOf("xxxx is off") == -1); } public boolean testCase04() throws Exception { String ret = get("/xxxx?action=toggle"); return (ret.indexOf("xxxx is off") != -1) && (ret.indexOf("xxxx is on") == -1); } public boolean testCase05() throws Exception { String ret = get("/xxxx?action=toggle"); return (ret.indexOf("xxxx is on") != -1) && (ret.indexOf("xxxx is off") == -1); } public boolean testCase06() throws Exception { String ret = get("/yyyy"); return (ret.indexOf("yyyy is off") != -1) && (ret.indexOf("yyyy is on") == -1); } public boolean testCase07() throws Exception { String ret = get("/xxxx"); return (ret.indexOf("xxxx is on") != -1) && (ret.indexOf("xxxx is off") == -1); } public boolean testCase08() throws Exception { String ret = get("/zzzz.789"); return (ret.indexOf("Power reading is 0.000") != -1); } public boolean testCase09() throws Exception { get("/zzzz.789?action=on"); Thread.sleep(1500); String ret = get("/zzzz.789"); return (ret.indexOf("Power reading is 789.000") != -1); } } private static final Logger logger = LoggerFactory.getLogger(HTTPCommands.class); }

package ece448.iot_sim; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * Simulate a smart plug with power monitoring. */ public class PlugSim { private final String name; private boolean on = false; private double power = 0; // in watts public PlugSim(String name) { this.name = name; } /** * No need to synchronize if read a final field. */ public String getName() { return name; } /** * Switch the plug on. */ synchronized public void switchOn() { // P1: add your code here on = true; } /** * Switch the plug off. */ synchronized public void switchOff() { // P1: add your code here on = false; } /** * Toggle the plug. */ synchronized public void toggle() { // P1: add your code here on = !on; } /** * Measure power. */ synchronized public void measurePower() { if (!on) { updatePower(0); return; } // a trick to help testing if (name.indexOf(".") != -1) { updatePower(Integer.parseInt(name.split("\\.")[1])); } // do some random walk else if (power < 100) { updatePower(power + Math.random() * 100); } else if (power > 300) { updatePower(power - Math.random() * 100); } else { updatePower(power + Math.random() * 40 - 20); } } protected void updatePower(double p) { power = p; logger.debug("Plug {}: power {}", name, power); } /** * Getter: current state */ synchronized public boolean isOn() { return on; } /** * Getter: last power reading */ synchronized public double getPower() { return power; } private static final Logger logger = LoggerFactory.getLogger(PlugSim.class);这段代码能逐句解释一下吗?

第一段代码 GroupsResource package ece448.lec16; import java.util.ArrayList; import java.util.Collection; import java.util.HashMap; import java.util.List; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.web.bind.annotation.DeleteMapping; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.PostMapping; import org.springframework.web.bind.annotation.RequestBody; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.RestController; @RestController public class GroupsResource { private final GroupsModel groups; public GroupsResource(GroupsModel groups) { this.groups = groups; } @GetMapping("/api/groups") public Collection<Object> getGroups() throws Exception { ArrayList<Object> ret = new ArrayList<>(); for (String group: groups.getGroups()) { ret.add(makeGroup(group)); } logger.info("Groups: {}", ret); return ret; } @GetMapping("/api/groups/{group}") public Object getGroup( @PathVariable("group") String group, @RequestParam(value = "action", required = false) String action) { if (action == null) { Object ret = makeGroup(group); logger.info("Group {}: {}", group, ret); return ret; } // modify code below to control plugs by publishing messages to MQTT broker List<String> members = groups.getGroupMembers(group); logger.info("Group {}: action {}, {}", group, action, members); return null; } @PostMapping("/api/groups/{group}") public void createGroup( @PathVariable("group") String group, @RequestBody List<String> members) { groups.setGroupMembers(group, members); logger.info("Group {}: created {}", group, members); } @DeleteMapping("/api/groups/{group}") public void removeGroup( @PathVariable("group") String group) { groups.removeGroup(group); logger.info("Group {}: removed", group); } protected Object makeGroup(String group) { // modify code below to include plug states HashMap<String, Object> ret = new HashMap<>(); ret.put("name", group); ret.put("members", groups.getGroupMembers(group)); return ret; } private static final Logger logger = LoggerFactory.getLogger(GroupsResource.class); }

import java.util.Arrays; import org.apache.http.client.fluent.Request; import ece448.iot_sim.SimConfig; import ece448.iot_sim.Main; public class GradeP2 { public static void main(String[] args) throws Exception { SimConfig config = new SimConfig( 8080, Arrays.asList("xxxx", "yyyy", "zzzz.789"), null, null, null); try (Main m = new Main(config)) { Grading.run(new GradeP2(), 10); } } private String get(String pathParams) throws Exception { return Request.Get("http://127.0.0.1:8080"+pathParams) .userAgent("Mozilla/5.0") .connectTimeout(1000) .socketTimeout(1000) .execute().returnContent().asString(); } public boolean testCase00() throws Exception { String ret = get("/xxxx"); return (ret.indexOf("xxxx is off") != -1) && (ret.indexOf("xxxx is on") == -1) && (ret.indexOf("Power reading is 0.000") != -1); } public boolean testCase01() throws Exception { String ret = get("/xxxx?action=on"); return (ret.indexOf("xxxx is on") != -1) && (ret.indexOf("xxxx is off") == -1); } public boolean testCase02() throws Exception { String ret = get("/xxxx?action=off"); return (ret.indexOf("xxxx is off") != -1) && (ret.indexOf("xxxx is on") == -1); } public boolean testCase03() throws Exception { String ret = get("/xxxx?action=on"); return (ret.indexOf("xxxx is on") != -1) && (ret.indexOf("xxxx is off") == -1); } public boolean testCase04() throws Exception { String ret = get("/xxxx?action=toggle"); return (ret.indexOf("xxxx is off") != -1) && (ret.indexOf("xxxx is on") == -1); } public boolean testCase05() throws Exception { String ret = get("/xxxx?action=toggle"); return (ret.indexOf("xxxx is on") != -1) && (ret.indexOf("xxxx is off") == -1); } public boolean testCase06() throws Exception { String ret = get("/yyyy"); return (ret.indexOf("yyyy is off") != -1) && (ret.indexOf("yyyy is on") == -1); } public boolean testCase07() throws Exception { String ret = get("/xxxx"); return (ret.indexOf("xxxx is on") != -1) && (ret.indexOf("xxxx is off") == -1); } public boolean testCase08() throws Exception { String ret = get("/zzzz.789"); return (ret.indexOf("Power reading is 0.000") != -1); } public boolean testCase09() throws Exception { get("/zzzz.789?action=on"); Thread.sleep(1500); String ret = get("/zzzz.789"); return (ret.indexOf("Power reading is 789.000") != -1); } } private static final Logger logger = LoggerFactory.getLogger(HTTPCommands.class); }请逐句解释一下上述代码

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