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<h1>comprehensions_spec.sl</h1>
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<td class="line-num">1</td>
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<td class="code-content"><pre>// ============================================================================</pre></td>
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<td class="code-content"><pre>// List Comprehensions Test Suite</pre></td>
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<td class="code-content"><pre>// ============================================================================</pre></td>
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<td class="code-content"><pre></pre></td>
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<td class="code-content"><pre>describe("List Comprehensions", fn() {</pre></td>
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<td class="code-content"><pre> test("basic list comprehension", fn() {</pre></td>
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<td class="code-content"><pre> let squares = [x * x for x in range(1, 5)];</pre></td>
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<td class="code-content"><pre> assert_eq(len(squares), 4);</pre></td>
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<td class="code-content"><pre> assert_eq(squares[0], 1);</pre></td>
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<td class="code-content"><pre> assert_eq(squares[1], 4);</pre></td>
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<td class="code-content"><pre> assert_eq(squares[2], 9);</pre></td>
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<td class="code-content"><pre> assert_eq(squares[3], 16);</pre></td>
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<td class="code-content"><pre> });</pre></td>
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<td class="code-content"><pre></pre></td>
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<td class="code-content"><pre> test("list comprehension with condition", fn() {</pre></td>
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<td class="code-content"><pre> let evens = [x for x in range(1, 10) if x % 2 == 0];</pre></td>
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<td class="code-content"><pre> assert_eq(len(evens), 4);</pre></td>
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<td class="code-content"><pre> assert_eq(evens[0], 2);</pre></td>
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<td class="code-content"><pre> assert_eq(evens[1], 4);</pre></td>
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<td class="code-content"><pre> });</pre></td>
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<td class="code-content"><pre></pre></td>
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<td class="code-content"><pre> test("list comprehension with transformation", fn() {</pre></td>
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<td class="line-num">23</td>
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<td class="code-content"><pre> let words = ["hello", "world"];</pre></td>
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<td class="code-content"><pre> let upper = [upcase(w) for w in words];</pre></td>
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<td class="code-content"><pre> assert_eq(upper[0], "HELLO");</pre></td>
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<td class="code-content"><pre> assert_eq(upper[1], "WORLD");</pre></td>
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<td class="code-content"><pre> });</pre></td>
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<td class="code-content"><pre></pre></td>
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<td class="line-num">29</td>
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<td class="code-content"><pre> test("list comprehension with multiple variables", fn() {</pre></td>
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<td class="code-content"><pre> let result = [];</pre></td>
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<td class="code-content"><pre> for (x in range(1, 3)) {</pre></td>
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<td class="code-content"><pre> for (y in range(1, 3)) {</pre></td>
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<td class="code-content"><pre> result.push([x, y]);</pre></td>
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<td class="code-content"><pre> }</pre></td>
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<td class="code-content"><pre> }</pre></td>
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<td class="code-content"><pre> assert_eq(len(result), 4);</pre></td>
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<td class="code-content"><pre> });</pre></td>
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<td class="code-content"><pre></pre></td>
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<td class="line-num">39</td>
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<td class="code-content"><pre> test("list comprehension with complex expression", fn() {</pre></td>
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<td class="code-content"><pre> let result = [];</pre></td>
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<td class="code-content"><pre> for (x in range(0, 5)) {</pre></td>
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<td class="code-content"><pre> if (x % 2 == 0) {</pre></td>
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<td class="code-content"><pre> result.push(x * 2 + 1);</pre></td>
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<td class="code-content"><pre> }</pre></td>
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<td class="code-content"><pre> }</pre></td>
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<td class="code-content"><pre> assert_eq(result[0], 1);</pre></td>
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<td class="code-content"><pre> assert_eq(result[1], 5);</pre></td>
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<td class="code-content"><pre> assert_eq(result[2], 9);</pre></td>
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<td class="code-content"><pre> });</pre></td>
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<td class="code-content"><pre></pre></td>
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<td class="code-content"><pre> test("list comprehension over array", fn() {</pre></td>
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<td class="code-content"><pre> let arr = [10, 20, 30];</pre></td>
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<td class="code-content"><pre> let doubled = [x * 2 for x in arr];</pre></td>
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<td class="code-content"><pre> assert_eq(doubled[0], 20);</pre></td>
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<td class="code-content"><pre> assert_eq(doubled[1], 40);</pre></td>
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<td class="code-content"><pre> assert_eq(doubled[2], 60);</pre></td>
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<td class="code-content"><pre> });</pre></td>
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<td class="code-content"><pre></pre></td>
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<td class="line-num">59</td>
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<td class="code-content"><pre> test("list comprehension with nested expression", fn() {</pre></td>
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<td class="code-content"><pre> let data = [];</pre></td>
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<td class="line-num">61</td>
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<td class="code-content"><pre> let h1 = hash();</pre></td>
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<td class="line-num">62</td>
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<td class="code-content"><pre> h1["v"] = 1;</pre></td>
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<td class="line-num">63</td>
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<td class="code-content"><pre> data.push(h1);</pre></td>
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<td class="line-num">64</td>
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<td class="code-content"><pre> let h2 = hash();</pre></td>
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<td class="line-num">65</td>
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<td class="code-content"><pre> h2["v"] = 2;</pre></td>
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<td class="line-num">66</td>
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<td class="code-content"><pre> data.push(h2);</pre></td>
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<td class="line-num">67</td>
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<td class="code-content"><pre> let h3 = hash();</pre></td>
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<td class="line-num">68</td>
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<td class="code-content"><pre> h3["v"] = 3;</pre></td>
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<td class="line-num">69</td>
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<td class="code-content"><pre> data.push(h3);</pre></td>
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<td class="code-content"><pre> let sum = 0;</pre></td>
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<td class="code-content"><pre> for (item in data) {</pre></td>
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<td class="code-content"><pre> sum = sum + item["v"];</pre></td>
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<td class="code-content"><pre> }</pre></td>
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<td class="code-content"><pre> assert_eq(sum, 6);</pre></td>
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<td class="code-content"><pre> });</pre></td>
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<td class="code-content"><pre>});</pre></td>
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