test(heureka): add tests for new components

Author: taymoor89

apps/heureka/src/components/common/ErrorBoundary/ErrorMessage.test.tsx

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+/*
+ * SPDX-FileCopyrightText: 2025 SAP SE or an SAP affiliate company and Juno contributors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import React from "react"
+import { render, screen } from "@testing-library/react"
+import { ErrorMessage } from "./ErrorMessage"
+
+describe("ErrorMessage", () => {
+  it("renders error message with name and message", () => {
+    const error = new Error("Something went wrong")
+    error.name = "TestError"
+    render(<ErrorMessage error={error} />)
+    const errorText = screen.getByText("TestError: Something went wrong")
+    expect(errorText).toBeInTheDocument()
+  })
+
+  it("renders error message with default name", () => {
+    const error = new Error("Something went wrong")
+    error.name = ""
+    render(<ErrorMessage error={error} />)
+    const errorText = screen.getByText("Error: Something went wrong")
+    expect(errorText).toBeInTheDocument()
+  })
+
+  it("renders default message when error message is empty", () => {
+    const error = new Error("")
+    error.name = "TestError"
+    render(<ErrorMessage error={error} />)
+    const errorText = screen.getByText("TestError: Something went wrong")
+    expect(errorText).toBeInTheDocument()
+  })
+})

apps/heureka/src/components/common/LoadingDataRow.test.tsx

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+/*
+ * SPDX-FileCopyrightText: 2025 SAP SE or an SAP affiliate company and Juno contributors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import React from "react"
+import { render, screen } from "@testing-library/react"
+import { LoadingDataRow } from "./LoadingDataRow"
+
+describe("LoadingDataRow", () => {
+  it("should correctly render", () => {
+    render(<LoadingDataRow colSpan={5} />)
+    const loadingText = screen.getByText("Loading")
+    const spinner = screen.getByRole("progressbar")
+    expect(loadingText).toBeInTheDocument()
+    expect(spinner).toBeInTheDocument()
+  })
+})

apps/heureka/src/components/common/getErrorDataRow.test.tsx

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+/*
+ * SPDX-FileCopyrightText: 2025 SAP SE or an SAP affiliate company and Juno contributors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import React from "react"
+import { render, screen } from "@testing-library/react"
+import { getErrorDataRowComponent } from "./getErrorDataRow"
+
+describe("getErrorDataRowComponent", () => {
+  it("should render error message when ErrorDataRow component is used", () => {
+    const ErrorDataRow = getErrorDataRowComponent({ colspan: 5 })
+    const testError = new Error("Test error message")
+    render(<ErrorDataRow error={testError} />)
+    const errorText = screen.getByText(/Test error message/)
+    expect(errorText).toBeInTheDocument()
+  })
+
+  it("should render with correct colSpan prop", () => {
+    const ErrorDataRow = getErrorDataRowComponent({ colspan: 7 })
+    const testError = new Error("Test error")
+    const { container } = render(<ErrorDataRow error={testError} />)
+    const cell = container.querySelector('[style*="grid-column: span 7"]')
+    expect(cell).toBeInTheDocument()
+  })
+})