refactor(coding-agent): reorganized test files to proper test directory structure

- Moved test files from src/core to test/core directory.
- Moved test files from src/core/tools to test/tools directory.
- Moved test files from src/discovery to test/discovery directory.
- Updated import paths to reflect new test file locations.

packages/coding-agent/test/tools/python-renderer.test.ts

@@ -0,0 +1,36 @@
+import { describe, expect, it } from "bun:test";
+import stripAnsi from "strip-ansi";
+import { pythonToolRenderer } from "../../src/core/tools/python";
+import { truncateTail } from "../../src/core/tools/truncate";
+import { getThemeByName } from "../../src/modes/interactive/theme/theme";
+
+describe("pythonToolRenderer", () => {
+	it("renders truncated output when collapsed and full output when expanded", () => {
+		const theme = getThemeByName("dark");
+		expect(theme).toBeDefined();
+		const uiTheme = theme!;
+
+		const fullOutput = ["line 1", "line 2", "line 3", "line 4"].join("\n");
+		const truncation = truncateTail(fullOutput, { maxLines: 2, maxBytes: 128 });
+
+		const result = {
+			content: [{ type: "text", text: truncation.content }],
+			details: {
+				truncation,
+				fullOutput,
+			},
+		};
+
+		const collapsed = pythonToolRenderer.renderResult(result, { expanded: false, isPartial: false }, uiTheme);
+		const collapsedLines = stripAnsi(collapsed.render(80).join("\n"));
+		expect(collapsedLines).toContain("line 4");
+		expect(collapsedLines).not.toContain("line 1");
+		expect(collapsedLines).toContain("Truncated:");
+
+		const expanded = pythonToolRenderer.renderResult(result, { expanded: true, isPartial: false }, uiTheme);
+		const expandedLines = stripAnsi(expanded.render(80).join("\n"));
+		expect(expandedLines).toContain("line 1");
+		expect(expandedLines).toContain("line 4");
+		expect(expandedLines).not.toContain("Truncated:");
+	});
+});