From 16cd8abad6274a4f44bcabab13d6cbe135f3decc Mon Sep 17 00:00:00 2001
From: Austin Horstman <khaneliman12@gmail.com>
Date: Thu, 16 Oct 2025 21:11:49 -0500
Subject: [PATCH] tests/diff-so-fancy: add

Signed-off-by: Austin Horstman <khaneliman12@gmail.com>
---
 .../programs/diff-so-fancy/default.nix        |  5 +++
 .../diff-so-fancy/diff-so-fancy-basic.nix     | 14 ++++++++
 .../diff-so-fancy/diff-so-fancy-migration.nix | 35 +++++++++++++++++++
 .../diff-so-fancy-with-git-integration.nix    | 23 ++++++++++++
 4 files changed, 77 insertions(+)
 create mode 100644 tests/modules/programs/diff-so-fancy/default.nix
 create mode 100644 tests/modules/programs/diff-so-fancy/diff-so-fancy-basic.nix
 create mode 100644 tests/modules/programs/diff-so-fancy/diff-so-fancy-migration.nix
 create mode 100644 tests/modules/programs/diff-so-fancy/diff-so-fancy-with-git-integration.nix

diff --git a/tests/modules/programs/diff-so-fancy/default.nix b/tests/modules/programs/diff-so-fancy/default.nix
new file mode 100644
index 000000000..258d883cb
--- /dev/null
+++ b/tests/modules/programs/diff-so-fancy/default.nix
@@ -0,0 +1,5 @@
+{
+  diff-so-fancy-basic = ./diff-so-fancy-basic.nix;
+  diff-so-fancy-with-git-integration = ./diff-so-fancy-with-git-integration.nix;
+  diff-so-fancy-migration = ./diff-so-fancy-migration.nix;
+}
diff --git a/tests/modules/programs/diff-so-fancy/diff-so-fancy-basic.nix b/tests/modules/programs/diff-so-fancy/diff-so-fancy-basic.nix
new file mode 100644
index 000000000..fac80a4ab
--- /dev/null
+++ b/tests/modules/programs/diff-so-fancy/diff-so-fancy-basic.nix
@@ -0,0 +1,14 @@
+{
+  programs.diff-so-fancy = {
+    enable = true;
+    markEmptyLines = false;
+    changeHunkIndicators = true;
+  };
+  programs.git.enable = true;
+
+  nmt.script = ''
+    # Git config should NOT contain diff-so-fancy configuration since enableGitIntegration is false by default
+    assertFileNotRegex home-files/.config/git/config 'pager = .*/diff-so-fancy'
+    assertFileNotRegex home-files/.config/git/config 'diffFilter = .*/diff-so-fancy'
+  '';
+}
diff --git a/tests/modules/programs/diff-so-fancy/diff-so-fancy-migration.nix b/tests/modules/programs/diff-so-fancy/diff-so-fancy-migration.nix
new file mode 100644
index 000000000..f65f08eb0
--- /dev/null
+++ b/tests/modules/programs/diff-so-fancy/diff-so-fancy-migration.nix
@@ -0,0 +1,35 @@
+{
+  lib,
+  options,
+  ...
+}:
+
+{
+  programs.git = {
+    enable = true;
+    diff-so-fancy = {
+      enable = true;
+      markEmptyLines = false;
+      changeHunkIndicators = true;
+    };
+  };
+
+  test.asserts.warnings.expected = [
+    "The option `programs.git.diff-so-fancy.changeHunkIndicators' defined in ${lib.showFiles options.programs.git.diff-so-fancy.changeHunkIndicators.files} has been renamed to `programs.diff-so-fancy.changeHunkIndicators'."
+    "The option `programs.git.diff-so-fancy.markEmptyLines' defined in ${lib.showFiles options.programs.git.diff-so-fancy.markEmptyLines.files} has been renamed to `programs.diff-so-fancy.markEmptyLines'."
+    "The option `programs.git.diff-so-fancy.enable' defined in ${lib.showFiles options.programs.git.diff-so-fancy.enable.files} has been renamed to `programs.diff-so-fancy.enable'."
+    "`programs.diff-so-fancy.enableGitIntegration` automatic enablement is deprecated. Please explicitly set `programs.diff-so-fancy.enableGitIntegration = true`."
+  ];
+
+  nmt.script = ''
+    # Git config should contain diff-so-fancy configuration (backward compatibility)
+    assertFileExists home-files/.config/git/config
+    assertFileContains home-files/.config/git/config '[core]'
+    assertFileRegex home-files/.config/git/config 'pager = .*/diff-so-fancy.*less'
+    assertFileContains home-files/.config/git/config '[interactive]'
+    assertFileRegex home-files/.config/git/config 'diffFilter = .*/diff-so-fancy --patch'
+    assertFileContains home-files/.config/git/config '[diff-so-fancy]'
+    assertFileContains home-files/.config/git/config 'markEmptyLines = false'
+    assertFileContains home-files/.config/git/config 'changeHunkIndicators = true'
+  '';
+}
diff --git a/tests/modules/programs/diff-so-fancy/diff-so-fancy-with-git-integration.nix b/tests/modules/programs/diff-so-fancy/diff-so-fancy-with-git-integration.nix
new file mode 100644
index 000000000..48127f195
--- /dev/null
+++ b/tests/modules/programs/diff-so-fancy/diff-so-fancy-with-git-integration.nix
@@ -0,0 +1,23 @@
+{
+  programs.diff-so-fancy = {
+    enable = true;
+    enableGitIntegration = true;
+    markEmptyLines = false;
+    changeHunkIndicators = true;
+    stripLeadingSymbols = false;
+  };
+
+  programs.git.enable = true;
+
+  nmt.script = ''
+    assertFileExists home-files/.config/git/config
+    assertFileContains home-files/.config/git/config '[core]'
+    assertFileRegex home-files/.config/git/config 'pager = .*/diff-so-fancy.*less'
+    assertFileContains home-files/.config/git/config '[interactive]'
+    assertFileRegex home-files/.config/git/config 'diffFilter = .*/diff-so-fancy --patch'
+    assertFileContains home-files/.config/git/config '[diff-so-fancy]'
+    assertFileContains home-files/.config/git/config 'markEmptyLines = false'
+    assertFileContains home-files/.config/git/config 'changeHunkIndicators = true'
+    assertFileContains home-files/.config/git/config 'stripLeadingSymbols = false'
+  '';
+}