Mailtrap Email Sending
by railsware
- mailtrap-mcp
- src
- tools
- sandbox
- __tests__
showEmailMessage.test.ts•5.62 kB
import showEmailMessage from "../showSandboxEmailMessage";
import { sandboxClient } from "../../../client";
jest.mock("../../../client", () => ({
sandboxClient: {
testing: {
messages: {
showEmailMessage: jest.fn(),
getHtmlMessage: jest.fn(),
getTextMessage: jest.fn(),
},
},
},
}));
describe("showEmailMessage", () => {
const mockMessage = {
id: 1,
from_email: "sender@example.com",
to_email: "recipient@example.com",
subject: "Test Subject",
sent_at: "2024-01-01T00:00:00Z",
is_read: false,
html_body_size: 1000,
text_body_size: 500,
email_size: 2000,
};
const mockHtmlContent = "<html><body>Test HTML</body></html>";
const mockTextContent = "Test text content";
const originalEnv = { ...process.env };
beforeEach(() => {
jest.clearAllMocks();
jest.resetModules();
(sandboxClient as any).testing.messages.showEmailMessage.mockResolvedValue(
mockMessage
);
(sandboxClient as any).testing.messages.getHtmlMessage.mockResolvedValue(
mockHtmlContent
);
(sandboxClient as any).testing.messages.getTextMessage.mockResolvedValue(
mockTextContent
);
Object.assign(process.env, { MAILTRAP_TEST_INBOX_ID: "123" });
});
afterEach(() => {
Object.assign(process.env, originalEnv);
});
it("should show sandbox email message successfully with HTML and text", async () => {
const result = await showEmailMessage({ message_id: 1 });
expect(
(sandboxClient as any).testing.messages.showEmailMessage
).toHaveBeenCalledWith(123, 1);
expect(
(sandboxClient as any).testing.messages.getHtmlMessage
).toHaveBeenCalledWith(123, 1);
expect(
(sandboxClient as any).testing.messages.getTextMessage
).toHaveBeenCalledWith(123, 1);
expect(result.content[0].text).toContain("Sandbox Email Message Details");
expect(result.content[0].text).toContain("Message ID: 1");
expect(result.content[0].text).toContain("sender@example.com");
expect(result.content[0].text).toContain("Test Subject");
expect(result.content[0].text).toContain("HTML Content");
expect(result.content[0].text).toContain("Text Content");
expect(result.content[0].text).toContain(mockHtmlContent);
expect(result.content[0].text).toContain(mockTextContent);
});
it("should handle message without HTML content", async () => {
(sandboxClient as any).testing.messages.getHtmlMessage.mockRejectedValue(
new Error("No HTML")
);
const result = await showEmailMessage({ message_id: 1 });
expect(result.content[0].text).toContain("Sandbox Email Message Details");
expect(result.content[0].text).toContain("Text Content");
expect(result.content[0].text).not.toContain("HTML Content");
});
it("should handle message without text content", async () => {
(sandboxClient as any).testing.messages.getTextMessage.mockRejectedValue(
new Error("No text")
);
const result = await showEmailMessage({ message_id: 1 });
expect(result.content[0].text).toContain("Sandbox Email Message Details");
expect(result.content[0].text).toContain("HTML Content");
expect(result.content[0].text).not.toContain("Text Content");
});
it("should handle message without both HTML and text", async () => {
(sandboxClient as any).testing.messages.getHtmlMessage.mockRejectedValue(
new Error("No HTML")
);
(sandboxClient as any).testing.messages.getTextMessage.mockRejectedValue(
new Error("No text")
);
const result = await showEmailMessage({ message_id: 1 });
expect(result.content[0].text).toContain("Sandbox Email Message Details");
expect(result.content[0].text).toContain(
"Message body content could not be retrieved"
);
});
it("should handle null message response", async () => {
(sandboxClient as any).testing.messages.showEmailMessage.mockResolvedValue(
null
);
const result = await showEmailMessage({ message_id: 999 });
expect(result.isError).toBe(true);
expect(result.content[0].text).toContain("Message with ID 999 not found");
});
it("should handle missing MAILTRAP_TEST_INBOX_ID", async () => {
delete process.env.MAILTRAP_TEST_INBOX_ID;
const result = await showEmailMessage({ message_id: 1 });
expect(result.isError).toBe(true);
expect(result.content[0].text).toContain(
"MAILTRAP_TEST_INBOX_ID environment variable is required"
);
});
it("should handle missing sandbox client", async () => {
// Mock sandboxClient as null for this test
jest.doMock("../../../client", () => ({
sandboxClient: null,
}));
// Re-import the module to get the mocked version
jest.resetModules();
const showEmailMessageModule = (await import("../showSandboxEmailMessage"))
.default;
const result = await showEmailMessageModule({ message_id: 1 });
// Restore the original mock
jest.dontMock("../../../client");
jest.resetModules();
expect(result.isError).toBe(true);
expect(result.content[0].text).toContain("Sandbox client is not available");
});
it("should handle API errors", async () => {
const mockError = new Error("API Error");
(sandboxClient as any).testing.messages.showEmailMessage.mockRejectedValue(
mockError
);
const result = await showEmailMessage({ message_id: 1 });
expect(result.isError).toBe(true);
expect(result.content[0].text).toContain(
"Failed to show sandbox email message"
);
expect(result.content[0].text).toContain("API Error");
});
});
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