From fcc0229087c4efd212a1050f38d3049d52344b3a Mon Sep 17 00:00:00 2001
From: Mihai Bazon <mihai@bazon.net>
Date: Sat, 13 Oct 2012 15:04:44 +0300
Subject: drop unused function arguments

also add test for "drop_unused" (the last one fails for now)
---
 test/compress/drop-unused.js | 97 ++++++++++++++++++++++++++++++++++++++++++++
 test/run-tests.js            |  6 +++
 2 files changed, 103 insertions(+)
 create mode 100644 test/compress/drop-unused.js

(limited to 'test')

diff --git a/test/compress/drop-unused.js b/test/compress/drop-unused.js
new file mode 100644
index 00000000..bf5cd296
--- /dev/null
+++ b/test/compress/drop-unused.js
@@ -0,0 +1,97 @@
+unused_funarg_1: {
+    options = { unused: true };
+    input: {
+        function f(a, b, c, d, e) {
+            return a + b;
+        }
+    }
+    expect: {
+        function f(a, b) {
+            return a + b;
+        }
+    }
+}
+
+unused_funarg_2: {
+    options = { unused: true };
+    input: {
+        function f(a, b, c, d, e) {
+            return a + c;
+        }
+    }
+    expect: {
+        function f(a, b, c) {
+            return a + c;
+        }
+    }
+}
+
+unused_nested_function: {
+    options = { unused: true };
+    input: {
+        function f(x, y) {
+            function g() {
+                something();
+            }
+            return x + y;
+        }
+    };
+    expect: {
+        function f(x, y) {
+            return x + y;
+        }
+    }
+}
+
+unused_circular_references_1: {
+    options = { unused: true };
+    input: {
+        function f(x, y) {
+            // circular reference
+            function g() {
+                return h();
+            }
+            function h() {
+                return g();
+            }
+            return x + y;
+        }
+    };
+    expect: {
+        function f(x, y) {
+            return x + y;
+        }
+    }
+}
+
+unused_circular_references_2: {
+    options = { unused: true };
+    input: {
+        function f(x, y) {
+            var foo = 1, bar = baz, baz = foo + bar, qwe = moo();
+            return x + y;
+        }
+    };
+    expect: {
+        function f(x, y) {
+            moo();              // keeps side effect
+            return x + y;
+        }
+    }
+}
+
+unused_circular_references_3: {
+    options = { unused: true };
+    input: {
+        function f(x, y) {
+            var g = function() { return h() };
+            var h = function() { return g() };
+            return x + y;
+        }
+    };
+    expect: {
+        function f(x, y) {
+            return x + y;
+        }
+    }
+}
diff --git a/test/run-tests.js b/test/run-tests.js
index abace39c..87301412 100755
--- a/test/run-tests.js
+++ b/test/run-tests.js
@@ -37,6 +37,12 @@ function find_test_files(dir) {
     var files = fs.readdirSync(dir).filter(function(name){
         return /\.js$/i.test(name);
     });
+    if (process.argv.length > 2) {
+        var x = process.argv.slice(2);
+        files = files.filter(function(f){
+            return x.indexOf(f) >= 0;
+        });
+    }
     return files;
 }
 
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