desktop/src-tauri/crates/core/tests/gemini_incremental.rs

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//! Gemini incremental behavior for whole-file JSON: unchanged repeats add nothing; appends

//! rewrite the whole file without duplicate upserts; partial writes stay pending without cursor advance;

//! same-length replacement changes generation and rescans; rename retains identity.

/// Base session: one user, two gemini messages; input 1000/2000, output 50/100, total 1050/2100.

/// Manual totals: call_count=2, input_total_known=3000, output_total_known=150;

/// total_tokens_known=3150, cache_read_known=None; unreported fields remain unknown.

// Whole-file rewrite appends a gemini message: input 500/output 25/total 525.

// Truncate inside messages, retaining sessionId/messages detection shape: Supported,

// but JSON remains incomplete while writing.

// Completing the file allows normal parsing next run.

// Equal-length gemini messages use same-digit numbers; reversing keeps file size.