//! COMPLY-008: 100-Point Popperian Falsification Test Suite
//!
//! Per Karl Popper's *The Logic of Scientific Discovery* (1934):
//! > "A theory which is not refutable by any conceivable event is non-scientific."
//!
//! This module contains adversarial test cases designed to FALSIFY our detection hypotheses.
//! Tests are written BEFORE implementation to ensure we're solving a real problem.
//!
//! ## Hypotheses Under Test
//!
//! **Hypothesis A (Detection)**: CB-050 correctly identifies all code-level stubs without false positives.
//!
//! **Hypothesis B (Regex Sufficiency)**: Regular expressions are sufficient to detect GPU barriers/branching
//! (CB-060) with >90% precision, without requiring a full AST parser.
//!
//! **Hypothesis C (Wild Stability)**: The checks are stable on unseen "Wild" code from external repos.
//!
//! ## Test Structure
//!
//! - Tests 001-030: CB-050 Stub Detection (attempts to falsify Hypothesis A)
//! - Tests 031-055: CB-060 GPU Quality (attempts to falsify Hypothesis B)
//! - Tests 056-070: SATD Manifestation Type
//! - Tests 071-085: Suppression Logic
//! - Tests 086-100: Integration & Wild Tests (attempts to falsify Hypothesis C)

// ============================================================================
// IMPORTS FROM IMPLEMENTATION
// CB-050 is now implemented; CB-060 remains in RED phase
// ============================================================================

// Import the real implementations from comply_cb_detect
use super::comply_cb_detect::{
    detect_cb050_code_stubs_in_str, detect_cb050_code_stubs_in_str_with_path,
};

// CB-060 functions are still stubs in comply_cb_detect.rs - import them too
use super::comply_cb_detect::{
    detect_ptx_barrier_divergence_in_str, detect_shared_memory_unbounded_in_str,
    detect_tiled_kernel_no_bounds_in_str, detect_wgsl_barrier_divergence_in_str,
};

// ============================================================================
// CB-050 STUB DETECTION FALSIFICATION TESTS (30 tests)
// Hypothesis A: CB-050 correctly identifies all code-level stubs without FPs
// ============================================================================

#[cfg_attr(coverage_nightly, coverage(off))]
#[cfg(test)]
mod cb050_falsification {
    use super::*;

    // ========================================================================
    // TRUE POSITIVES: Must detect (tests 001-015)
    // If any of these pass without detection, Hypothesis A is FALSIFIED
    // ========================================================================

    #[test]
    fn tp_001_basic_todo_macro() {
        // Hypothesis: todo!() is detected
        // Falsification attempt: Simplest possible case
        let code = "fn foo() { todo!() }";
        let violations = detect_cb050_code_stubs_in_str(code);
        assert!(
            !violations.is_empty(),
            "FALSIFIED: Failed to detect basic todo!()"
        );
        assert!(
            violations.iter().any(|(_, id, _)| *id == "CB-050-A"),
            "FALSIFIED: Wrong pattern ID for todo!()"
        );
    }

    #[test]
    fn tp_002_todo_with_message() {
        // Falsification: Does message content break detection?
        let code = r#"fn foo() { todo!("implement later") }"#;
        let violations = detect_cb050_code_stubs_in_str(code);
        assert!(
            !violations.is_empty(),
            "FALSIFIED: Failed to detect todo!() with message"
        );
    }

    #[test]
    fn tp_003_unimplemented_macro() {
        let code = "fn bar() { unimplemented!() }";
        let violations = detect_cb050_code_stubs_in_str(code);
        assert!(
            !violations.is_empty(),
            "FALSIFIED: Failed to detect unimplemented!()"
        );
        assert!(violations.iter().any(|(_, id, _)| *id == "CB-050-B"));
    }

    #[test]
    fn tp_004_panic_not_implemented() {
        let code = r#"fn baz() { panic!("not implemented") }"#;
        let violations = detect_cb050_code_stubs_in_str(code);
        assert!(
            !violations.is_empty(),
            "FALSIFIED: Failed to detect panic not implemented"
        );
        assert!(violations.iter().any(|(_, id, _)| *id == "CB-050-C"));
    }

    #[test]
    fn tp_005_empty_function_body() {
        // Adversarial: Minimal whitespace
        let code = "fn empty() {}";
        let violations = detect_cb050_code_stubs_in_str(code);
        assert!(
            !violations.is_empty(),
            "FALSIFIED: Failed to detect empty function body"
        );
        assert!(violations.iter().any(|(_, id, _)| *id == "CB-050-D"));
    }

    #[test]
    fn tp_006_empty_function_with_whitespace() {
        // Adversarial: Extra whitespace inside braces
        let code = "fn empty() {   }";
        let violations = detect_cb050_code_stubs_in_str(code);
        assert!(
            !violations.is_empty(),
            "FALSIFIED: Failed to detect empty body with whitespace"
        );
    }

    #[test]
    fn tp_007_empty_function_multiline() {
        // Adversarial: Multiline empty body
        let code = "fn empty() {\n\n}";
        let violations = detect_cb050_code_stubs_in_str(code);
        assert!(
            !violations.is_empty(),
            "FALSIFIED: Failed to detect multiline empty body"
        );
    }

    #[test]
    fn tp_008_python_not_implemented_error() {
        let code = "def foo():\n    raise NotImplementedError()";
        let violations = detect_cb050_code_stubs_in_str(code);
        assert!(
            !violations.is_empty(),
            "FALSIFIED: Failed to detect Python NotImplementedError"
        );
        assert!(violations.iter().any(|(_, id, _)| *id == "CB-050-E"));
    }

    #[test]
    fn tp_009_python_not_implemented_with_message() {
        let code = r#"def foo():
    raise NotImplementedError("not done yet")"#;
        let violations = detect_cb050_code_stubs_in_str(code);
        assert!(
            !violations.is_empty(),
            "FALSIFIED: Failed to detect NotImplementedError with message"
        );
    }

    #[test]
    fn tp_010_python_pass_stub_comment() {
        let code = "def foo():\n    pass  # stub";
        let violations = detect_cb050_code_stubs_in_str(code);
        assert!(
            !violations.is_empty(),
            "FALSIFIED: Failed to detect Python pass stub"
        );
        assert!(violations.iter().any(|(_, id, _)| *id == "CB-050-F"));
    }

    #[test]
    fn tp_011_todo_in_match_arm() {
        // Adversarial: Nested context
        let code = "match x { Some(_) => todo!(), None => 0 }";
        let violations = detect_cb050_code_stubs_in_str(code);
        assert!(
            !violations.is_empty(),
            "FALSIFIED: Failed to detect todo!() in match arm"
        );
    }

    #[test]
    fn tp_012_todo_in_closure() {
        let code = "let f = || todo!();";
        let violations = detect_cb050_code_stubs_in_str(code);
        assert!(
            !violations.is_empty(),
            "FALSIFIED: Failed to detect todo!() in closure"
        );
    }

    #[test]
    fn tp_013_unimplemented_with_formatting() {
        // Adversarial: Complex format string
        let code = r#"fn x() { unimplemented!("{} not done: {}", "feature", 42) }"#;
        let violations = detect_cb050_code_stubs_in_str(code);
        assert!(
            !violations.is_empty(),
            "FALSIFIED: Failed to detect unimplemented!() with format"
        );
    }

    #[test]
    fn tp_014_todo_weird_spacing() {
        // Adversarial: Unusual whitespace that might break regex
        let code = "fn f() { todo ! () }";
        let violations = detect_cb050_code_stubs_in_str(code);
        assert!(
            !violations.is_empty(),
            "FALSIFIED: Failed to detect todo with weird spacing"
        );
    }

    #[test]
    fn tp_015_multiple_stubs_one_file() {
        // Adversarial: Multiple stubs - must catch all
        let code = "fn a() { todo!() }\nfn b() { unimplemented!() }\nfn c() {}";
        let violations = detect_cb050_code_stubs_in_str(code);
        assert_eq!(
            violations.len(),
            3,
            "FALSIFIED: Should detect all 3 stubs, found {}",
            violations.len()
        );
    }

    // ========================================================================
    // TRUE NEGATIVES: Must NOT detect (tests 016-025)
    // If any of these trigger detection, Hypothesis A is FALSIFIED (false positive)
    // ========================================================================

    #[test]
    fn tn_016_todo_in_string_literal() {
        // Adversarial: String containing "todo!" should NOT trigger
        let code = r#"let s = "todo!() is a macro";"#;
        let violations = detect_cb050_code_stubs_in_str(code);
        assert!(
            violations.is_empty(),
            "FALSIFIED (FP): Detected todo! in string literal"
        );
    }

    #[test]
    fn tn_017_todo_in_comment() {
        // Comments are handled by SATD detector, not stub detector
        let code = "// TODO: implement this\nfn foo() { return 42; }";
        let violations = detect_cb050_code_stubs_in_str(code);
        assert!(
            violations.is_empty(),
            "FALSIFIED (FP): Detected TODO comment as code stub"
        );
    }

    #[test]
    fn tn_018_function_with_body() {
        let code = "fn not_empty() { println!(\"hello\"); }";
        let violations = detect_cb050_code_stubs_in_str(code);
        assert!(
            violations.is_empty(),
            "FALSIFIED (FP): Function with body flagged as stub"
        );
    }

    #[test]
    fn tn_019_trait_default_impl() {
        // Empty body in trait default is INTENTIONAL
        let code = "trait Foo { fn default_impl() {} }";
        let violations = detect_cb050_code_stubs_in_str(code);
        assert!(
            violations.is_empty(),
            "FALSIFIED (FP): Trait default impl flagged as stub"
        );
    }

    #[test]
    fn tn_020_test_function_with_todo() {
        // Stubs in test code are acceptable
        let code = "#[test]\nfn test_future_feature() { todo!() }";
        let violations = detect_cb050_code_stubs_in_str_with_path(code, "src/tests/mod.rs");
        assert!(
            violations.is_empty(),
            "FALSIFIED (FP): Test stub flagged as violation"
        );
    }

    #[test]
    fn tn_021_doc_comment_with_todo() {
        let code = "/// TODO: document this\nfn foo() { 42 }";
        let violations = detect_cb050_code_stubs_in_str(code);
        assert!(
            violations.is_empty(),
            "FALSIFIED (FP): Doc comment flagged as stub"
        );
    }

    #[test]
    fn tn_022_raw_string_with_todo() {
        let code = r##"let s = r#"todo!() in raw string"#;"##;
        let violations = detect_cb050_code_stubs_in_str(code);
        assert!(
            violations.is_empty(),
            "FALSIFIED (FP): Raw string flagged as stub"
        );
    }

    #[test]
    fn tn_023_macro_definition_with_todo_pattern() {
        // Pattern definition in macro should not trigger
        let code = r#"macro_rules! my_macro { (todo) => { /* ... */ }; }"#;
        let violations = detect_cb050_code_stubs_in_str(code);
        assert!(
            violations.is_empty(),
            "FALSIFIED (FP): Macro definition flagged"
        );
    }

    #[test]
    fn tn_024_variable_named_todo() {
        let code = "let todo = 42;";
        let violations = detect_cb050_code_stubs_in_str(code);
        assert!(
            violations.is_empty(),
            "FALSIFIED (FP): Variable named 'todo' flagged"
        );
    }

    #[test]
    fn tn_025_function_named_todo() {
        // Function NAMED todo with a real body
        let code = "fn todo() -> i32 { 42 }";
        let violations = detect_cb050_code_stubs_in_str(code);
        assert!(
            violations.is_empty(),
            "FALSIFIED (FP): Function named 'todo' flagged"
        );
    }

    // ========================================================================
    // EDGE CASES: Adversarial inputs designed to break regex (tests 026-030)
    // These test the boundary of Hypothesis A
    // ========================================================================

    #[test]
    fn edge_026_nested_braces_empty_inner() {
        // Adversarial: Nested braces - only inner is empty
        let code = "fn outer() { { } let x = 1; }";
        let violations = detect_cb050_code_stubs_in_str(code);
        // Should NOT flag - the function has content
        assert!(
            violations.is_empty(),
            "FALSIFIED (FP): Nested empty braces in function with content"
        );
    }

    #[test]
    fn edge_027_async_fn_with_todo() {
        let code = "async fn foo() { todo!() }";
        let violations = detect_cb050_code_stubs_in_str(code);
        assert!(!violations.is_empty(), "FALSIFIED: Missed todo in async fn");
    }

    #[test]
    fn edge_028_const_fn_empty() {
        // const fn empty might be intentional for type-level programming
        let code = "const fn marker() {}";
        let _violations = detect_cb050_code_stubs_in_str(code);
        // Design decision: This is a gray area - document behavior
        // For now, we detect but with lower severity
    }

    #[test]
    fn edge_029_unicode_in_todo_message() {
        // Adversarial: Unicode that might break regex
        let code = r#"fn f() { todo!("实现这个功能 🚧") }"#;
        let violations = detect_cb050_code_stubs_in_str(code);
        assert!(
            !violations.is_empty(),
            "FALSIFIED: Missed todo with unicode"
        );
    }

    #[test]
    fn edge_030_todo_in_doc_test() {
        // Doc test stubs are examples, not production code
        let code = "/// ```\n/// fn example() { todo!() }\n/// ```\nfn real_fn() { 42 }";
        let violations = detect_cb050_code_stubs_in_str(code);
        assert!(
            violations.is_empty(),
            "FALSIFIED (FP): Doc test stub flagged"
        );
    }
}

// ============================================================================
// CB-060 GPU QUALITY FALSIFICATION TESTS (25 tests)
// Hypothesis B: Regex is sufficient for GPU pattern detection (>90% precision)
// ============================================================================

#[cfg_attr(coverage_nightly, coverage(off))]
#[cfg(test)]
mod cb060_falsification {
    use super::*;

    // ========================================================================
    // CB-060-A: BARRIER DIVERGENCE (tests 031-040)
    // ========================================================================

    #[test]
    fn tp_031_ptx_bra_before_barrier_simple() {
        // From PARITY-114: Simple case
        let ptx = r#"
            setp.ge.u32 %p0, %r5, %r7;
            @%p0 bra exit;
            bar.sync 0;
        "#;
        let violations = detect_ptx_barrier_divergence_in_str(ptx);
        assert!(
            !violations.is_empty(),
            "FALSIFIED: Missed simple barrier divergence"
        );
    }

    #[test]
    fn tp_032_ptx_bra_before_barrier_multiline() {
        // Adversarial: Many lines between branch and barrier
        let ptx = r#"
            @%p0 bra skip_section;
            mov.u32 %r1, 0;
            mov.u32 %r2, 0;
            mov.u32 %r3, 0;
            mov.u32 %r4, 0;
            bar.sync 0;
            skip_section:
        "#;
        let violations = detect_ptx_barrier_divergence_in_str(ptx);
        assert!(
            !violations.is_empty(),
            "FALSIFIED: Missed barrier divergence with intervening code"
        );
    }

    #[test]
    fn tp_033_wgsl_barrier_in_if() {
        let wgsl = r#"
            if (local_id.x < 16u) {
                workgroupBarrier();
            }
        "#;
        let violations = detect_wgsl_barrier_divergence_in_str(wgsl);
        assert!(
            !violations.is_empty(),
            "FALSIFIED: Missed WGSL barrier in if"
        );
    }

    #[test]
    fn tp_034_wgsl_barrier_in_else() {
        // Adversarial: Barrier in else branch only
        let wgsl = r#"
            if (condition) {
                // no barrier
            } else {
                workgroupBarrier();
            }
        "#;
        let violations = detect_wgsl_barrier_divergence_in_str(wgsl);
        assert!(
            !violations.is_empty(),
            "FALSIFIED: Missed WGSL barrier in else"
        );
    }

    #[test]
    fn tn_035_ptx_barrier_before_branch() {
        // Barrier BEFORE branch is safe
        let ptx = r#"
            bar.sync 0;
            setp.ge.u32 %p0, %r5, %r7;
            @%p0 bra exit;
        "#;
        let violations = detect_ptx_barrier_divergence_in_str(ptx);
        assert!(
            violations.is_empty(),
            "FALSIFIED (FP): Barrier before branch flagged"
        );
    }

    #[test]
    fn tn_036_wgsl_barrier_outside_control_flow() {
        // Barrier not in divergent control flow
        let wgsl = r#"
            workgroupBarrier();
            if (condition) {
                // no barrier here
            }
            workgroupBarrier();
        "#;
        let violations = detect_wgsl_barrier_divergence_in_str(wgsl);
        assert!(
            violations.is_empty(),
            "FALSIFIED (FP): Non-divergent barrier flagged"
        );
    }

    #[test]
    fn edge_037_ptx_barrier_in_comment() {
        // Adversarial: bar.sync in comment should NOT trigger
        let ptx = r#"
            // bar.sync 0; -- this is a comment
            @%p0 bra exit;
        "#;
        let violations = detect_ptx_barrier_divergence_in_str(ptx);
        assert!(
            violations.is_empty(),
            "FALSIFIED (FP): Barrier in comment flagged"
        );
    }

    #[test]
    fn edge_038_ptx_nested_predicates() {
        // Adversarial: Complex nested predicate structure
        let ptx = r#"
            @%p0 bra check1;
            @%p1 bra check2;
            bar.sync 0;
            check1:
            check2:
        "#;
        let violations = detect_ptx_barrier_divergence_in_str(ptx);
        assert!(
            !violations.is_empty(),
            "FALSIFIED: Missed nested predicate divergence"
        );
    }

    #[test]
    fn edge_039_wgsl_barrier_in_loop() {
        // Barrier in loop that all threads execute is OK
        let wgsl = r#"
            for (var i = 0u; i < 4u; i++) {
                workgroupBarrier();
            }
        "#;
        let violations = detect_wgsl_barrier_divergence_in_str(wgsl);
        // Uniform loop - all threads execute same iterations
        assert!(
            violations.is_empty(),
            "FALSIFIED (FP): Barrier in uniform loop flagged"
        );
    }

    #[test]
    fn edge_040_wgsl_barrier_in_divergent_loop() {
        // Barrier in loop with thread-dependent bounds
        let wgsl = r#"
            for (var i = 0u; i < local_id.x; i++) {
                workgroupBarrier();
            }
        "#;
        let violations = detect_wgsl_barrier_divergence_in_str(wgsl);
        // Divergent loop - threads execute different iterations
        assert!(
            !violations.is_empty(),
            "FALSIFIED: Missed barrier in divergent loop"
        );
    }

    // ========================================================================
    // CB-060-B: SHARED MEMORY BOUNDS (tests 041-047)
    // ========================================================================

    #[test]
    fn tp_041_unbounded_shared_load() {
        // From issue #32: Direct shared memory access without bounds check
        let ptx = r#"
            mul.u32 %r10, %r5, 64;
            ld.shared.f32 %f1, [%r10];
        "#;
        let violations = detect_shared_memory_unbounded_in_str(ptx);
        assert!(
            !violations.is_empty(),
            "FALSIFIED: Missed unbounded shared memory load"
        );
    }

    #[test]
    fn tp_042_unbounded_shared_store() {
        let ptx = r#"
            mul.u32 %r10, %r5, 64;
            st.shared.f32 [%r10], %f1;
        "#;
        let violations = detect_shared_memory_unbounded_in_str(ptx);
        assert!(
            !violations.is_empty(),
            "FALSIFIED: Missed unbounded shared memory store"
        );
    }

    #[test]
    fn tn_043_bounded_shared_load() {
        // Predicated load with bounds check
        let ptx = r#"
            setp.lt.u32 %p1, %r5, 256;
            @%p1 ld.shared.f32 %f1, [%r10];
        "#;
        let violations = detect_shared_memory_unbounded_in_str(ptx);
        assert!(
            violations.is_empty(),
            "FALSIFIED (FP): Bounded shared load flagged"
        );
    }

    #[test]
    fn tn_044_shared_with_constant_offset() {
        // Constant offset is always bounded
        let ptx = r#"
            ld.shared.f32 %f1, [shared_mem + 128];
        "#;
        let violations = detect_shared_memory_unbounded_in_str(ptx);
        assert!(
            violations.is_empty(),
            "FALSIFIED (FP): Constant offset flagged"
        );
    }

    #[test]
    fn edge_045_shared_in_comment() {
        let ptx = r#"
            // ld.shared.f32 %f1, [%r10]; -- commented out
            mov.f32 %f1, 0.0;
        "#;
        let violations = detect_shared_memory_unbounded_in_str(ptx);
        assert!(
            violations.is_empty(),
            "FALSIFIED (FP): Commented shared access flagged"
        );
    }

    #[test]
    fn edge_046_shared_complex_index() {
        // Adversarial: Complex index expression
        let ptx = r#"
            mad.lo.u32 %r10, %r5, 64, %r6;
            add.u32 %r10, %r10, %r7;
            ld.shared.f32 %f1, [%r10];
        "#;
        let violations = detect_shared_memory_unbounded_in_str(ptx);
        // Complex index without bounds check should be flagged
        assert!(
            !violations.is_empty(),
            "FALSIFIED: Missed complex index without bounds"
        );
    }

    #[test]
    fn edge_047_shared_bounds_far_apart() {
        // Adversarial: Bounds check far from actual load
        let ptx = r#"
            setp.lt.u32 %p1, %r5, 256;
            mov.u32 %r10, 0;
            mov.u32 %r11, 0;
            mov.u32 %r12, 0;
            mul.u32 %r13, %r5, 64;
            @%p1 ld.shared.f32 %f1, [%r13];
        "#;
        let violations = detect_shared_memory_unbounded_in_str(ptx);
        // Bounds check exists, load is predicated - should be OK
        assert!(
            violations.is_empty(),
            "FALSIFIED (FP): Distant bounds check not recognized"
        );
    }

    // ========================================================================
    // CB-060-C: TILED KERNEL BOUNDS (tests 048-055)
    // ========================================================================

    #[test]
    fn tp_048_tiled_no_boundary_check() {
        // From issue #37: Tiled GEMM without boundary check
        let rust_code = r#"
            // Tiled GEMM kernel
            for tile in 0..k_tiles {
                // Load A tile - no bounds check for m < tile_size
                let a_elem = a_smem[local_row * TILE_K + k];
                let b_elem = b_smem[k * TILE_N + local_col];
                acc += a_elem * b_elem;
            }
            // Store without checking row < m && col < n
            c[row * n + col] = acc;
        "#;
        let violations = detect_tiled_kernel_no_bounds_in_str(rust_code);
        assert!(
            !violations.is_empty(),
            "FALSIFIED: Missed tiled kernel without bounds"
        );
    }

    #[test]
    fn tn_049_tiled_with_boundary_check() {
        let rust_code = r#"
            // Tiled GEMM with proper bounds
            for tile in 0..k_tiles {
                let a_elem = a_smem[local_row * TILE_K + k];
                let b_elem = b_smem[k * TILE_N + local_col];
                acc += a_elem * b_elem;
            }
            // Proper bounds check before store
            if row < m && col < n {
                c[row * n + col] = acc;
            }
        "#;
        let violations = detect_tiled_kernel_no_bounds_in_str(rust_code);
        assert!(
            violations.is_empty(),
            "FALSIFIED (FP): Properly bounded tiled kernel flagged"
        );
    }

    #[test]
    fn tp_050_ptx_tiled_early_exit() {
        // From PARITY-114: Early exit breaks tile loading
        let ptx = r#"
            setp.ge.u32 %p0, %r_row, %r_m;
            @%p0 bra exit;
            setp.ge.u32 %p1, %r_col, %r_n;
            @%p1 bra exit;
            // Tile loop starts here
            tile_loop:
            ld.shared.f32 %f1, [smem_a];
            bar.sync 0;
        "#;
        let violations = detect_tiled_kernel_no_bounds_in_str(ptx);
        // Early exit before tile loop = some threads don't load
        assert!(
            !violations.is_empty(),
            "FALSIFIED: Missed early exit before tile loop"
        );
    }

    #[test]
    fn edge_051_wgsl_tiled_workgroup_size() {
        // WGSL tiled kernel pattern
        let wgsl = r#"
            @workgroup_size(32, 32)
            fn tiled_matmul() {
                // No bounds check
                let a_tile = a[global_id.y * K + local_id.x];
            }
        "#;
        let violations = detect_tiled_kernel_no_bounds_in_str(wgsl);
        assert!(
            !violations.is_empty(),
            "FALSIFIED: Missed WGSL tiled without bounds"
        );
    }

    #[test]
    fn edge_052_partial_bounds_check() {
        // Only row bounds checked, not column
        let rust_code = r#"
            if row < m {
                // Missing: && col < n
                c[row * n + col] = acc;
            }
        "#;
        let violations = detect_tiled_kernel_no_bounds_in_str(rust_code);
        assert!(
            !violations.is_empty(),
            "FALSIFIED: Missed partial bounds check"
        );
    }

    #[test]
    fn edge_053_bounds_in_wrong_place() {
        // Bounds check after store (useless)
        let rust_code = r#"
            c[row * n + col] = acc;
            if row < m && col < n {
                // Too late!
            }
        "#;
        let violations = detect_tiled_kernel_no_bounds_in_str(rust_code);
        assert!(
            !violations.is_empty(),
            "FALSIFIED: Accepted bounds check after store"
        );
    }

    #[test]
    fn edge_054_tiled_in_string() {
        // Adversarial: Kernel code in string literal
        let rust_code = r#"
            let kernel_src = "c[row * n + col] = acc;";
        "#;
        let violations = detect_tiled_kernel_no_bounds_in_str(rust_code);
        assert!(
            violations.is_empty(),
            "FALSIFIED (FP): Kernel code in string flagged"
        );
    }

    #[test]
    fn edge_055_complex_bounds_expression() {
        // Bounds check with complex expression
        let rust_code = r#"
            if (row * stride + offset) < (m * stride) && col < n {
                c[row * n + col] = acc;
            }
        "#;
        let violations = detect_tiled_kernel_no_bounds_in_str(rust_code);
        // Complex but valid bounds check
        assert!(
            violations.is_empty(),
            "FALSIFIED (FP): Complex bounds expression not recognized"
        );
    }
}

// ============================================================================
// SATD MANIFESTATION TYPE TESTS (15 tests)
// ============================================================================

#[cfg_attr(coverage_nightly, coverage(off))]
#[cfg(test)]
mod satd_manifestation_falsification {
    use super::super::comply_cb_detect::{
        classify_satd_by_pattern_id, classify_satd_manifestation, SATDManifestationType, Severity,
    };

    // Tests 056-070: Verify code vs comment SATD distinction

    #[test]
    fn tp_056_code_satd_is_code_type() {
        // todo!() macro should be classified as Code manifestation
        let result = classify_satd_manifestation("fn foo() { todo!() }");
        assert_eq!(
            result,
            SATDManifestationType::Code,
            "FALSIFIED: todo!() not classified as Code"
        );
    }

    #[test]
    fn tp_057_comment_satd_is_comment_type() {
        // // TODO: comment should be classified as Comment manifestation
        let result = classify_satd_manifestation("// TODO: implement this later");
        assert_eq!(
            result,
            SATDManifestationType::Comment,
            "FALSIFIED: // TODO not classified as Comment"
        );
    }

    #[test]
    fn tp_058_code_satd_escalates_severity() {
        // Code SATD with Medium base -> High effective severity
        let code_type = SATDManifestationType::Code;
        let escalated = code_type.escalate_severity(Severity::Medium);
        assert_eq!(
            escalated,
            Severity::High,
            "FALSIFIED: Code SATD Medium did not escalate to High"
        );
    }

    #[test]
    fn tp_059_comment_satd_no_escalation() {
        // Comment SATD keeps original severity
        let comment_type = SATDManifestationType::Comment;
        let result = comment_type.escalate_severity(Severity::Medium);
        assert_eq!(
            result,
            Severity::Medium,
            "FALSIFIED: Comment SATD should not escalate"
        );
    }

    #[test]
    fn tp_060_unimplemented_is_code_type() {
        let result = classify_satd_manifestation("fn bar() { unimplemented!() }");
        assert_eq!(
            result,
            SATDManifestationType::Code,
            "FALSIFIED: unimplemented!() not classified as Code"
        );
    }

    #[test]
    fn tp_061_fixme_comment_is_comment_type() {
        let result = classify_satd_manifestation("// FIXME: this is broken");
        assert_eq!(
            result,
            SATDManifestationType::Comment,
            "FALSIFIED: // FIXME not classified as Comment"
        );
    }

    #[test]
    fn tp_062_panic_not_implemented_is_code_type() {
        let result = classify_satd_manifestation(r#"fn x() { panic!("not implemented") }"#);
        assert_eq!(
            result,
            SATDManifestationType::Code,
            "FALSIFIED: panic!(\"not implemented\") not classified as Code"
        );
    }

    #[test]
    fn tp_063_hack_comment_is_comment_type() {
        let result = classify_satd_manifestation("// HACK: temporary workaround");
        assert_eq!(
            result,
            SATDManifestationType::Comment,
            "FALSIFIED: // HACK not classified as Comment"
        );
    }

    #[test]
    fn edge_064_doc_comment_with_todo_is_comment() {
        // /// TODO in doc comment is Comment, not Code
        let result = classify_satd_manifestation("/// TODO: document this function");
        assert_eq!(
            result,
            SATDManifestationType::Comment,
            "FALSIFIED: /// TODO doc comment not classified as Comment"
        );
    }

    #[test]
    fn edge_065_python_raise_is_code() {
        // raise NotImplementedError is Code type
        let result = classify_satd_manifestation("raise NotImplementedError('not done')");
        assert_eq!(
            result,
            SATDManifestationType::Code,
            "FALSIFIED: Python NotImplementedError not classified as Code"
        );
    }

    #[test]
    fn edge_066_python_comment_is_comment() {
        // # TODO: is Comment type
        let result = classify_satd_manifestation("# TODO: implement this");
        assert_eq!(
            result,
            SATDManifestationType::Comment,
            "FALSIFIED: Python # TODO not classified as Comment"
        );
    }

    #[test]
    fn edge_067_empty_body_is_code() {
        // fn foo() {} is Code type
        let result = classify_satd_by_pattern_id("CB-050-D");
        assert_eq!(
            result,
            SATDManifestationType::Code,
            "FALSIFIED: Empty function body (CB-050-D) not classified as Code"
        );
    }

    #[test]
    fn edge_068_multiline_comment_is_comment() {
        // /* TODO */ is Comment type
        let result = classify_satd_manifestation("/* TODO: fix this later */");
        assert_eq!(
            result,
            SATDManifestationType::Comment,
            "FALSIFIED: /* TODO */ not classified as Comment"
        );
    }

    #[test]
    fn edge_069_critical_code_satd_stays_critical() {
        // Critical code SATD cannot escalate further
        let code_type = SATDManifestationType::Code;
        let result = code_type.escalate_severity(Severity::Critical);
        assert_eq!(
            result,
            Severity::Critical,
            "FALSIFIED: Critical should stay Critical"
        );
    }

    #[test]
    fn edge_070_low_comment_satd_stays_low() {
        // Low comment SATD stays Low (no escalation)
        let comment_type = SATDManifestationType::Comment;
        let result = comment_type.escalate_severity(Severity::Low);
        assert_eq!(
            result,
            Severity::Low,
            "FALSIFIED: Comment Low should stay Low"
        );
    }
}

// ============================================================================
// SUPPRESSION LOGIC TESTS (15 tests)
// ============================================================================

#[cfg_attr(coverage_nightly, coverage(off))]
#[cfg(test)]
mod suppression_falsification {
    use super::super::comply_cb_detect::{SuppressionConfig, SuppressionRule};

    // Tests 071-085: Verify suppression rule matching

    #[test]
    fn tp_071_glob_pattern_matches() {
        // examples/** should match examples/demo.rs
        let mut config = SuppressionConfig::new();
        config.add_rule(SuppressionRule {
            check_ids: vec![],
            glob_pattern: Some("examples/**".to_string()),
            file: None,
            lines: None,
            expires: None,
            reason: "Example code".to_string(),
        });

        let result = config.should_suppress("CB-050-A", "examples/demo.rs", 10);
        assert!(
            result.suppressed,
            "FALSIFIED: examples/** should match examples/demo.rs"
        );
    }

    #[test]
    fn tn_072_glob_pattern_no_match() {
        // examples/** should NOT match src/lib.rs
        let mut config = SuppressionConfig::new();
        config.add_rule(SuppressionRule {
            check_ids: vec![],
            glob_pattern: Some("examples/**".to_string()),
            file: None,
            lines: None,
            expires: None,
            reason: "Example code".to_string(),
        });

        let result = config.should_suppress("CB-050-A", "src/lib.rs", 10);
        assert!(
            !result.suppressed,
            "FALSIFIED (FP): examples/** should NOT match src/lib.rs"
        );
    }

    #[test]
    fn tp_073_specific_file_matches() {
        // file = "src/lib.rs" matches src/lib.rs
        let mut config = SuppressionConfig::new();
        config.add_rule(SuppressionRule {
            check_ids: vec![],
            glob_pattern: None,
            file: Some("src/lib.rs".to_string()),
            lines: None,
            expires: None,
            reason: "Known issue".to_string(),
        });

        let result = config.should_suppress("CB-050-A", "src/lib.rs", 10);
        assert!(
            result.suppressed,
            "FALSIFIED: specific file should match"
        );
    }

    #[test]
    fn tp_074_specific_line_matches() {
        // lines = [42] matches line 42
        let mut config = SuppressionConfig::new();
        config.add_rule(SuppressionRule {
            check_ids: vec![],
            glob_pattern: None,
            file: Some("src/lib.rs".to_string()),
            lines: Some(vec![42]),
            expires: None,
            reason: "Intentional stub".to_string(),
        });

        let result = config.should_suppress("CB-050-A", "src/lib.rs", 42);
        assert!(result.suppressed, "FALSIFIED: line 42 should match");
    }

    #[test]
    fn tn_075_specific_line_no_match() {
        // lines = [42] does NOT match line 43
        let mut config = SuppressionConfig::new();
        config.add_rule(SuppressionRule {
            check_ids: vec![],
            glob_pattern: None,
            file: Some("src/lib.rs".to_string()),
            lines: Some(vec![42]),
            expires: None,
            reason: "Intentional stub".to_string(),
        });

        let result = config.should_suppress("CB-050-A", "src/lib.rs", 43);
        assert!(
            !result.suppressed,
            "FALSIFIED (FP): line 43 should NOT match when only 42 is specified"
        );
    }

    #[test]
    fn tp_076_expired_suppression_ignored() {
        // expires = "2020-01-01" should not suppress in 2026
        let mut config = SuppressionConfig::new();
        config.add_rule(SuppressionRule {
            check_ids: vec![],
            glob_pattern: None,
            file: Some("src/lib.rs".to_string()),
            lines: None,
            expires: Some("2020-01-01".to_string()),
            reason: "Temporary".to_string(),
        });

        let result = config.should_suppress("CB-050-A", "src/lib.rs", 10);
        assert!(
            !result.suppressed,
            "FALSIFIED: expired suppression should be ignored"
        );
    }

    #[test]
    fn tp_077_future_expiry_still_active() {
        // expires = "2030-01-01" should still suppress
        let mut config = SuppressionConfig::new();
        config.add_rule(SuppressionRule {
            check_ids: vec![],
            glob_pattern: None,
            file: Some("src/lib.rs".to_string()),
            lines: None,
            expires: Some("2030-01-01".to_string()),
            reason: "Future expiry".to_string(),
        });

        let result = config.should_suppress("CB-050-A", "src/lib.rs", 10);
        assert!(
            result.suppressed,
            "FALSIFIED: future expiry should still suppress"
        );
    }

    #[test]
    fn tp_078_no_expiry_always_active() {
        // Missing expires field = never expires
        let mut config = SuppressionConfig::new();
        config.add_rule(SuppressionRule {
            check_ids: vec![],
            glob_pattern: None,
            file: Some("src/lib.rs".to_string()),
            lines: None,
            expires: None, // No expiry
            reason: "Permanent".to_string(),
        });

        let result = config.should_suppress("CB-050-A", "src/lib.rs", 10);
        assert!(
            result.suppressed,
            "FALSIFIED: no expiry should always suppress"
        );
    }

    #[test]
    fn tp_079_multiple_rules_or_logic() {
        // Multiple rules = suppress if ANY match
        let mut config = SuppressionConfig::new();
        config.add_rule(SuppressionRule {
            check_ids: vec![],
            glob_pattern: None,
            file: Some("src/a.rs".to_string()),
            lines: None,
            expires: None,
            reason: "Rule A".to_string(),
        });
        config.add_rule(SuppressionRule {
            check_ids: vec![],
            glob_pattern: None,
            file: Some("src/b.rs".to_string()),
            lines: None,
            expires: None,
            reason: "Rule B".to_string(),
        });

        let result_a = config.should_suppress("CB-050-A", "src/a.rs", 10);
        let result_b = config.should_suppress("CB-050-A", "src/b.rs", 10);
        assert!(result_a.suppressed, "FALSIFIED: rule A should match");
        assert!(result_b.suppressed, "FALSIFIED: rule B should match");
    }

    #[test]
    fn tp_080_reason_is_preserved() {
        // should_suppress returns the reason string
        let mut config = SuppressionConfig::new();
        config.add_rule(SuppressionRule {
            check_ids: vec![],
            glob_pattern: None,
            file: Some("src/lib.rs".to_string()),
            lines: None,
            expires: None,
            reason: "Known technical debt tracked in JIRA-123".to_string(),
        });

        let result = config.should_suppress("CB-050-A", "src/lib.rs", 10);
        assert!(result.suppressed);
        assert_eq!(
            result.reason,
            Some("Known technical debt tracked in JIRA-123".to_string()),
            "FALSIFIED: reason not preserved"
        );
    }

    #[test]
    fn edge_081_empty_suppressions() {
        // Empty config = nothing suppressed
        let config = SuppressionConfig::new();
        let result = config.should_suppress("CB-050-A", "src/lib.rs", 10);
        assert!(
            !result.suppressed,
            "FALSIFIED (FP): empty config should suppress nothing"
        );
    }

    #[test]
    fn edge_082_unknown_check_id() {
        // Suppression for specific check_ids = no effect on other checks
        let mut config = SuppressionConfig::new();
        config.add_rule(SuppressionRule {
            check_ids: vec!["CB-050-A".to_string()], // Only for CB-050-A
            glob_pattern: None,
            file: Some("src/lib.rs".to_string()),
            lines: None,
            expires: None,
            reason: "Only for todo!()".to_string(),
        });

        // Should suppress CB-050-A
        let result_a = config.should_suppress("CB-050-A", "src/lib.rs", 10);
        assert!(result_a.suppressed, "FALSIFIED: CB-050-A should be suppressed");

        // Should NOT suppress CB-050-B (different check)
        let result_b = config.should_suppress("CB-050-B", "src/lib.rs", 10);
        assert!(
            !result_b.suppressed,
            "FALSIFIED (FP): CB-050-B should NOT be suppressed by CB-050-A rule"
        );
    }

    #[test]
    fn edge_083_glob_double_star() {
        // **/*.rs matches deeply nested files
        let mut config = SuppressionConfig::new();
        config.add_rule(SuppressionRule {
            check_ids: vec![],
            glob_pattern: Some("**/tests/*.rs".to_string()),
            file: None,
            lines: None,
            expires: None,
            reason: "Test files".to_string(),
        });

        let result = config.should_suppress("CB-050-A", "src/services/tests/mod.rs", 10);
        assert!(
            result.suppressed,
            "FALSIFIED: **/ should match deeply nested paths"
        );
    }

    #[test]
    fn edge_084_glob_single_star() {
        // *.rs only matches root level
        let mut config = SuppressionConfig::new();
        config.add_rule(SuppressionRule {
            check_ids: vec![],
            glob_pattern: Some("*.rs".to_string()),
            file: None,
            lines: None,
            expires: None,
            reason: "Root files".to_string(),
        });

        // Should match root level
        let result_root = config.should_suppress("CB-050-A", "lib.rs", 10);
        assert!(result_root.suppressed, "FALSIFIED: *.rs should match lib.rs");

        // Should NOT match nested
        let result_nested = config.should_suppress("CB-050-A", "src/lib.rs", 10);
        assert!(
            !result_nested.suppressed,
            "FALSIFIED (FP): *.rs should NOT match src/lib.rs"
        );
    }

    #[test]
    fn edge_085_windows_path_separator() {
        // Should handle both / and \ in paths
        let mut config = SuppressionConfig::new();
        config.add_rule(SuppressionRule {
            check_ids: vec![],
            glob_pattern: None,
            file: Some("src/lib.rs".to_string()),
            lines: None,
            expires: None,
            reason: "Path test".to_string(),
        });

        // Windows-style path should be normalized
        let result = config.should_suppress("CB-050-A", "src\\lib.rs", 10);
        assert!(
            result.suppressed,
            "FALSIFIED: Windows path separators should be handled"
        );
    }
}

// ============================================================================
// INTEGRATION & WILD TESTS (15 tests)
// Hypothesis C: Checks are stable on unseen "Wild" code
// ============================================================================

#[cfg_attr(coverage_nightly, coverage(off))]
#[cfg(test)]
mod integration_falsification {
    // Tests 086-100: End-to-end comply behavior and Wild stability
    // All tests in this module require full integration (external repos, benchmarks)
    // Re-enable when integration infrastructure is ready

    #[test]
    #[ignore = "Requires full comply integration"]
    fn tp_086_comply_fails_on_production_stub() {
        // Project with todo!() in src/lib.rs should fail comply
        unimplemented!("Test requires full comply integration")
    }

    #[test]
    #[ignore = "Requires full comply integration"]
    fn tn_087_comply_passes_clean_project() {
        // Project without stubs should pass
        unimplemented!("Test requires full comply integration")
    }

    #[test]
    #[ignore = "Requires full comply integration"]
    fn tp_088_comply_respects_suppressions() {
        // Suppressed stub should not fail
        unimplemented!("Test requires full comply integration")
    }

    #[test]
    #[ignore = "Requires full comply integration"]
    fn tp_089_json_output_includes_violations() {
        // --format json includes violation details
        unimplemented!("Test requires full comply integration")
    }

    #[test]
    #[ignore = "Requires full comply integration"]
    fn tp_090_markdown_output_includes_violations() {
        // --format markdown includes violation details
        unimplemented!("Test requires full comply integration")
    }

    #[test]
    #[ignore = "Requires full comply integration"]
    fn tp_091_strict_mode_exits_nonzero() {
        // --strict with violations = exit code != 0
        unimplemented!("Test requires full comply integration")
    }

    #[test]
    #[ignore = "Requires full comply integration"]
    fn tp_092_failures_only_filters_output() {
        // --failures-only hides passing checks
        unimplemented!("Test requires full comply integration")
    }

    // ========================================================================
    // WILD TESTS: Test against real external codebases
    // These falsify Hypothesis C (stability on unseen code)
    // ========================================================================

    #[test]
    #[ignore = "Requires cloning tokio repo"]
    fn wild_093_tokio_false_positive_rate() {
        // Run CB-050 against tokio-rs/tokio
        // FALSIFIED if >100 false positives
        // This tests Hypothesis C directly
        unimplemented!("Requires cloning tokio repo")
    }

    #[test]
    #[ignore = "Requires cloning cargo repo"]
    fn wild_094_cargo_false_positive_rate() {
        // Run CB-050 against rust-lang/cargo
        // FALSIFIED if >100 false positives
        unimplemented!("Requires cloning cargo repo")
    }

    #[test]
    #[ignore = "Requires cloning serde repo"]
    fn wild_095_serde_false_positive_rate() {
        // Run CB-050 against serde-rs/serde
        // Many trait default impls - test FP on empty bodies
        unimplemented!("Requires cloning serde repo")
    }

    #[test]
    #[ignore = "Requires cloning wgpu repo"]
    fn wild_096_wgpu_gpu_checks() {
        // Run CB-060 against gfx-rs/wgpu
        // Real GPU codebase with WGSL shaders
        // FALSIFIED if >50 false positives
        unimplemented!("Requires cloning wgpu repo")
    }

    #[test]
    #[ignore = "Requires cloning rust-gpu repo"]
    fn wild_097_rust_gpu_checks() {
        // Run CB-060 against EmbarkStudios/rust-gpu
        // Real GPU compute codebase
        unimplemented!("Requires cloning rust-gpu repo")
    }

    #[test]
    #[ignore = "Requires hyperfine benchmark"]
    fn perf_098_comply_time_baseline() {
        // Comply check should complete in <30s on medium project
        // FALSIFIED if >15% regression from baseline
        unimplemented!("Requires hyperfine benchmark")
    }

    #[test]
    #[ignore = "Requires scaling benchmark"]
    fn perf_099_stub_detection_scaling() {
        // Stub detection should be O(n) in file count
        // FALSIFIED if quadratic or worse
        unimplemented!("Requires scaling benchmark")
    }

    #[test]
    #[ignore = "Requires memory profiling"]
    fn perf_100_large_file_handling() {
        // Should handle 10MB+ files without OOM
        // FALSIFIED if memory usage >500MB
        unimplemented!("Requires memory profiling")
    }
}

// ============================================================================
// TEST SUMMARY HELPER
// ============================================================================

/// Generates a summary report of falsification test status
#[cfg(test)]
#[allow(dead_code)]
fn generate_falsification_report() {
    println!("=== POPPERIAN FALSIFICATION REPORT ===");
    println!();
    println!("Hypothesis A (CB-050 Detection): UNTESTED");
    println!("  - True Positives: 15 tests");
    println!("  - True Negatives: 10 tests");
    println!("  - Edge Cases: 5 tests");
    println!();
    println!("Hypothesis B (CB-060 Regex Sufficiency): UNTESTED");
    println!("  - Barrier Divergence: 10 tests");
    println!("  - Shared Memory: 7 tests");
    println!("  - Tiled Kernels: 8 tests");
    println!();
    println!("Hypothesis C (Wild Stability): UNTESTED");
    println!("  - Integration: 7 tests");
    println!("  - Wild Codebases: 5 tests");
    println!("  - Performance: 3 tests");
    println!();
    println!("Status: RED PHASE - All tests expected to fail until implementation");
    println!();
    println!("Next step: Implement detection logic to make tests pass");
    println!("Catastrophic failure threshold: >5% FP rate falsifies specification");
}
