refactor: introduces staged builder patterns for frege project setup

(WIP)

1 files changed, 107 insertions, 0 deletions

diff --git a/src/functionalTest/java/ch/fhnw/thga/gradleplugins/SharedFunctionalTestLogic.java b/src/functionalTest/java/ch/fhnw/thga/gradleplugins/SharedFunctionalTestLogic.java
new file mode 100644
index 0000000..a0d46a4
--- /dev/null
+++ b/src/functionalTest/java/ch/fhnw/thga/gradleplugins/SharedFunctionalTestLogic.java
@@ -0,0 +1,107 @@
+package ch.fhnw.thga.gradleplugins;
+
+import static ch.fhnw.thga.gradleplugins.FregePlugin.FREGE_EXTENSION_NAME;
+import static ch.fhnw.thga.gradleplugins.FregePlugin.FREGE_PLUGIN_ID;
+import static ch.fhnw.thga.gradleplugins.GradleBuildFileConversionTest.createPluginsSection;
+
+import java.io.BufferedWriter;
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.util.stream.Stream;
+
+import org.gradle.api.Project;
+import org.gradle.testfixtures.ProjectBuilder;
+import org.gradle.testkit.runner.BuildResult;
+import org.gradle.testkit.runner.GradleRunner;
+
+public class SharedFunctionalTestLogic
+{
+
+   static String createFregeSection(FregeDTO fregeDTO) 
+   {
+        return String.format(
+            "%s {%s  %s%s}",
+            FREGE_EXTENSION_NAME,
+            System.lineSeparator(),
+            fregeDTO.toBuildFile(),
+            System.lineSeparator());
+    }
+
+    private static void writeFile(
+        File destination,
+        String content,
+        boolean append) 
+        throws IOException
+    {
+        try (BufferedWriter output = new BufferedWriter(new FileWriter(destination, append)))
+        {
+                output.write(content);
+        }
+    
+    }
+
+    static File writeToFile(File destination, String content) throws IOException
+    {
+        writeFile(destination, content, false);
+        return destination;
+    }
+
+    static File appendToFile(File destination, String content) throws IOException
+    {
+        writeFile(destination, System.lineSeparator() + content, true);
+        return destination;
+    }
+
+    static BuildResult runGradleTask(File testProjectDir, String... taskName)
+    {
+        return GradleRunner
+            .create()
+            .withProjectDir(testProjectDir)
+            .withPluginClasspath()
+            .withArguments(taskName)
+            .build();
+    }
+
+    static File createSettingsFile(File testProjectDir) throws IOException 
+        {
+            File settingsFile = new File(testProjectDir, "settings.gradle");
+            return writeToFile(settingsFile, "rootProject.name='frege-plugin'");
+        }
+    
+        private static File createFregePluginBuildFile(
+            File testProjectDir)
+            throws IOException
+        {
+            File buildFile = new File(testProjectDir, "build.gradle");
+            return writeToFile(
+                buildFile,
+                createPluginsSection(Stream.of(FREGE_PLUGIN_ID)));
+        }
+    
+        static File createFregeBuildFile(
+            File testProjectDir,
+            String fregeBuildFileConfig)
+            throws IOException
+        {
+            return appendToFile(
+                createFregePluginBuildFile(
+                    testProjectDir),
+                    fregeBuildFileConfig);
+        }
+    
+        static Project createFregeGradleProject(
+            File testProjectDir,
+            String fregeBuildFileConfig)
+            throws Exception
+        {
+            createSettingsFile(testProjectDir);
+            createFregeBuildFile(testProjectDir, fregeBuildFileConfig);
+            Project project = ProjectBuilder
+                .builder()
+                .withProjectDir(testProjectDir)
+                .build();
+            project.getPluginManager().apply(FREGE_PLUGIN_ID);
+            return project;
+        }
+}