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diff --git a/spec/inputs/test/table_comprehension_spec.yue b/spec/inputs/test/table_comprehension_spec.yue
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+describe "table comprehension", ->
+        it "should create simple table copy", ->
+                thing = {
+                        color: "red"
+                        name: "fast"
+                        width: 123
+                }
+
+                thing_copy = {k, v for k, v in pairs thing}
+                assert.same thing_copy.color, thing.color
+                assert.same thing_copy.name, thing.name
+                assert.same thing_copy.width, thing.width
+
+        it "should filter with when clause", ->
+                thing = {
+                        color: "red"
+                        name: "fast"
+                        width: 123
+                }
+
+                no_color = {k, v for k, v in pairs thing when k != "color"}
+                assert.same no_color.color, nil
+                assert.same no_color.name, "fast"
+                assert.same no_color.width, 123
+
+        it "should transform values", ->
+                numbers = {a: 1, b: 2, c: 3}
+                doubled = {k, v * 2 for k, v in pairs numbers}
+                assert.same doubled.a, 2
+                assert.same doubled.b, 4
+                assert.same doubled.c, 6
+
+        it "should transform keys", ->
+                data = {a: 1, b: 2}
+                upper_keys = {k\upper!, v for k, v in pairs data}
+                assert.same upper_keys.A, 1
+                assert.same upper_keys.B, 2
+
+        it "should work with ipairs", ->
+                items = {"a", "b", "c"}
+                reversed = {i, v for i, v in ipairs items}
+                assert.same reversed[1], "a"
+                assert.same reversed[2], "b"
+                assert.same reversed[3], "c"
+
+        it "should filter array items", ->
+                items = {1, 2, 3, 4, 5}
+                evens = {i, v for i, v in ipairs items when v % 2 == 0}
+                assert.same evens[2], 2
+                assert.same evens[4], 4
+                assert.same evens[1], nil
+
+        it "should work with numeric for loop", ->
+                squares = {i, i * i for i = 1, 5}
+                assert.same squares[1], 1
+                assert.same squares[2], 4
+                assert.same squares[3], 9
+                assert.same squares[4], 16
+                assert.same squares[5], 25
+
+        it "should support nested comprehensions", ->
+                matrix = {{1, 2}, {3, 4}, {5, 6}}
+                flat = {}
+                for row in *matrix
+                        for i, v in ipairs row
+                                flat[#flat + 1] = v
+
+                assert.same flat, {1, 2, 3, 4, 5, 6}
+
+        it "should combine pairs and when", ->
+                data = {a: 1, b: 2, c: 3, d: 4}
+                greater_than_two = {k, v for k, v in pairs data when v > 2}
+                assert.same greater_than_two.a, nil
+                assert.same greater_than_two.b, nil
+                assert.same greater_than_two.c, 3
+                assert.same greater_than_two.d, 4
+
+        it "should work with string keys", ->
+                obj = {["key-with-dash"]: "value1", ["key_with_underscore"]: "value2"}
+                result = {k, v for k, v in pairs obj}
+                assert.same result["key-with-dash"], "value1"
+                assert.same result["key_with_underscore"], "value2"
+
+        it "should handle empty source", ->
+                empty = {}
+                result = {k, v for k, v in pairs empty}
+                assert.same #result, 0
+
+        it "should work with computed keys", ->
+                base = {a: 1, b: 2}
+                result = {k .. "_suffix", v * 10 for k, v in pairs base}
+                assert.same result.a_suffix, 10
+                assert.same result.b_suffix, 20
+
+        it "should support nested table transformation", ->
+                data = {
+                        first: {x: 1, y: 2}
+                        second: {x: 3, y: 4}
+                }
+
+                transformed = {k, v.x + v.y for k, v in pairs data}
+                assert.same transformed.first, 3
+                assert.same transformed.second, 7
+
+        it "should filter with multiple conditions", ->
+                numbers = {a: 1, b: 2, c: 3, d: 4, e: 5}
+                result = {k, v for k, v in pairs numbers when v > 1 and v < 5}
+                assert.same result.a, nil
+                assert.same result.b, 2
+                assert.same result.c, 3
+                assert.same result.d, 4
+                assert.same result.e, nil
+
+        it "should work with custom iterator", ->
+                custom_iter = -> ->
+                        state = 0
+                        ->
+                                state += 1
+                                if state <= 3
+                                        state, state * 10
+                                else
+                                        nil
+
+                result = {k, v for k, v in custom_iter!}
+                assert.same result[1], 10
+                assert.same result[2], 20
+                assert.same result[3], 30