Fix license check logic error in ZenDsl

Author: whimet

build.gradle.kts

@@ -41,6 +41,8 @@ dependencies {
   implementation("io.reactivex.rxjava2:rxjava:2.2.21")
 
   testImplementation("junit:junit:4.12")
+  testImplementation("org.powermock:powermock-module-junit4:2.0.2")
+  testImplementation("org.powermock:powermock-api-mockito2:2.0.2")
   testImplementation("org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.6.10")
   detektPlugins("io.gitlab.arturbosch.detekt:detekt-formatting:1.21.0")
   testImplementation("org.spockframework:spock-core:2.2-groovy-4.0") {

src/com/zenuml/dsl/ZenDsl.java

@@ -30,8 +30,8 @@ public static String escape(String input) {
     }
 
     String getDsl() {
-        final Boolean isLicensed = CheckLicense.isLicensed();
-        if (Boolean.TRUE.equals(isLicensed)) {
+        boolean isLicensed = Boolean.TRUE.equals(CheckLicense.isLicensed());
+        if (!isLicensed) {
             return LICENSE_IS_NOT_VALID;
         }
         return dsl.toString();

test/src/com/zenuml/dsl/ZenDslTest.java

@@ -1,13 +1,27 @@
 package com.zenuml.dsl;
 
+import com.zenuml.license.CheckLicense;
+import org.junit.Before;
 import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mockito;
+import org.powermock.api.mockito.PowerMockito;
+import org.powermock.core.classloader.annotations.PrepareForTest;
+import org.powermock.modules.junit4.PowerMockRunner;
 
 import static org.hamcrest.core.Is.is;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertThat;
 
+@RunWith(PowerMockRunner.class)
+@PrepareForTest(CheckLicense.class)
 public class ZenDslTest {
 
+  @Before
+  public void setUp() {
+    PowerMockito.mockStatic(CheckLicense.class);
+  }
+
   @Test
   public void testEscape() {
     // remove the following characters: \, ", \n, \t, \r, `
@@ -18,6 +32,7 @@ public void testEscape() {
 
   @Test
   public void test_quoted() {
+    Mockito.when(CheckLicense.isLicensed()).thenReturn(true);
     assertThat(new ZenDsl().quoted("a").getDsl(), is("\"a\""));
     assertThat(new ZenDsl().quoted("a\nb").getDsl(), is("\"ab\""));
     assertThat(new ZenDsl()
@@ -28,10 +43,23 @@ public void test_quoted() {
 
   @Test
   public void addComment() {
+    Mockito.when(CheckLicense.isLicensed()).thenReturn(true);
     assertThat(new ZenDsl().comment("a").getDsl(), is("// a\n"));
     assertThat(new ZenDsl().comment("a\nb").getDsl(), is("// a\n// b\n"));
     assertThat(new ZenDsl()
         .startBlock().comment("a\nb")
         .closeBlock().getDsl(), is(" {\n\t// a\n\t// b\n}\n"));
   }
+
+  @Test
+  public void testNotLicensed() {
+    Mockito.when(CheckLicense.isLicensed()).thenReturn(false);
+    assertThat(new ZenDsl().getDsl(), is(ZenDsl.LICENSE_IS_NOT_VALID));
+  }
+
+  @Test
+  public void testNotLicensedWithNull() {
+    Mockito.when(CheckLicense.isLicensed()).thenReturn(null);
+    assertThat(new ZenDsl().getDsl(), is(ZenDsl.LICENSE_IS_NOT_VALID));
+  }
 }