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Automata indentation and link (#1425)

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* finite automata example

* indentation and link
This commit is contained in:
Mihai Emil Andronache
2017-03-19 11:29:39 +02:00
committed by Grzegorz Piwowarek
parent 9d0cb1e2aa
commit 202a19acbf
8 changed files with 126 additions and 125 deletions
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algorithms/src/test/java/algorithms/RtFiniteStateMachineTest.java
+61 -61
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@@ -9,74 +9,74 @@ import com.baeldung.automata.*;
*/
public final class RtFiniteStateMachineTest {
@Test
@Test
public void acceptsSimplePair() {
String json = "{\"key\":\"value\"}";
FiniteStateMachine machine = this.buildJsonStateMachine();
for (int i=0;i<json.length();i++) {
machine = machine.switchState(String.valueOf(json.charAt(i)));
}
assertTrue(machine.canStop());
String json = "{\"key\":\"value\"}";
FiniteStateMachine machine = this.buildJsonStateMachine();
for (int i=0;i<json.length();i++) {
machine = machine.switchState(String.valueOf(json.charAt(i)));
}
assertTrue(machine.canStop());
}
@Test
@Test
public void acceptsMorePairs() {
String json = "{\"key1\":\"value1\",\"key2\":\"value2\"}";
FiniteStateMachine machine = this.buildJsonStateMachine();
for (int i=0;i<json.length();i++) {
machine = machine.switchState(String.valueOf(json.charAt(i)));
}
assertTrue(machine.canStop());
String json = "{\"key1\":\"value1\",\"key2\":\"value2\"}";
FiniteStateMachine machine = this.buildJsonStateMachine();
for (int i=0;i<json.length();i++) {
machine = machine.switchState(String.valueOf(json.charAt(i)));
}
assertTrue(machine.canStop());
}
@Test(expected = IllegalArgumentException.class)
@Test(expected = IllegalArgumentException.class)
public void missingColon() {
String json = "{\"key\"\"value\"}";
FiniteStateMachine machine = this.buildJsonStateMachine();
for (int i=0;i<json.length();i++) {
machine = machine.switchState(String.valueOf(json.charAt(i)));
}
String json = "{\"key\"\"value\"}";
FiniteStateMachine machine = this.buildJsonStateMachine();
for (int i=0;i<json.length();i++) {
machine = machine.switchState(String.valueOf(json.charAt(i)));
}
}
/**
* Builds a finite state machine to validate a simple
* Json object.
* @return
*/
private FiniteStateMachine buildJsonStateMachine() {
State first = new RtState();
State second = new RtState();
State third = new RtState();
State fourth = new RtState();
State fifth = new RtState();
State sixth = new RtState();
State seventh = new RtState();
State eighth = new RtState(true);
/**
* Builds a finite state machine to validate a simple
* Json object.
* @return
*/
private FiniteStateMachine buildJsonStateMachine() {
State first = new RtState();
State second = new RtState();
State third = new RtState();
State fourth = new RtState();
State fifth = new RtState();
State sixth = new RtState();
State seventh = new RtState();
State eighth = new RtState(true);
first.with(new RtTransition("{", second));
second.with(new RtTransition("\"", third));
//Add transitions with chars 0-9 and a-z
for (int i = 0; i < 26; i++) {
if(i<10) {
third = third.with(
new RtTransition(String.valueOf(i), third)
);
sixth = sixth.with(
new RtTransition(String.valueOf(i), sixth)
first.with(new RtTransition("{", second));
second.with(new RtTransition("\"", third));
//Add transitions with chars 0-9 and a-z
for (int i = 0; i < 26; i++) {
if(i<10) {
third = third.with(
new RtTransition(String.valueOf(i), third)
);
}
third = third.with(
new RtTransition(String.valueOf((char) ('a' + i)), third)
);
sixth = sixth.with(
new RtTransition(String.valueOf((char) ('a' + i)), sixth)
);
}
third.with(new RtTransition("\"", fourth));
fourth.with(new RtTransition(":", fifth));
fifth.with(new RtTransition("\"", sixth));
sixth.with(new RtTransition("\"", seventh));
seventh.with(new RtTransition(",", second));
seventh.with(new RtTransition("}", eighth));
return new RtFiniteStateMachine(first);
}
sixth = sixth.with(
new RtTransition(String.valueOf(i), sixth)
);
}
third = third.with(
new RtTransition(String.valueOf((char) ('a' + i)), third)
);
sixth = sixth.with(
new RtTransition(String.valueOf((char) ('a' + i)), sixth)
);
}
third.with(new RtTransition("\"", fourth));
fourth.with(new RtTransition(":", fifth));
fifth.with(new RtTransition("\"", sixth));
sixth.with(new RtTransition("\"", seventh));
seventh.with(new RtTransition(",", second));
seventh.with(new RtTransition("}", eighth));
return new RtFiniteStateMachine(first);
}
}