Misc Changes

app/src/main/java/solutions/tretter/githugandroid/levels/BranchLevel.kt

@@ -0,0 +1,21 @@
+package solutions.tretter.githugandroid
+
+/**
+ * Port of the upstream ruby-githug `branch` level.
+ *
+ * Setup documents the repository shape the learner explores. Evaluation is kept
+ * state-based whenever the exercise changes repository objects; answer-only
+ * levels intentionally validate the answer entered at the prompt.
+ */
+internal fun branchLevel(): Level = level(
+    id = "branch",
+    title = "Branch",
+    description = "To work on a piece of code that has the potential to break things, create the branch test_code.",
+    hints = listOf("`git branch` is what you want to investigate."),
+    commandSuggestions = listOf("git branch test_code"),
+    setup = { RepoState(initialized = true, files = listOf(GitFile("README", tracked = true)), commits = listOf(CommitNode("0000001", "Initial commit")), branches = mapOf("master" to 1)) },
+    validator = repoPredicate { repo -> "test_code" in repo.branches && repo.headBranch == "master" },
+    testCases = listOf(
+        levelTestCase("create branch", "git branch test_code"),
+    ),
+)