budibase/packages/builder/cypress/integration/queryLevelTransformers.spec.js

import filterTests from "../support/filterTests"

filterTests(['smoke', 'all'], () => {
  context("Query Level Transformers", () => {
    before(() => {
      cy.login()
      cy.deleteApp("Cypress Tests")
      cy.createApp("Cypress Tests")
    })
      
    it("should write a transformer function", () => {
        // Add REST datasource - contains API for breweries
        const datasource = "REST"
        const restUrl = "https://api.openbrewerydb.org/breweries"
        cy.selectExternalDatasource(datasource)
        cy.createRestQuery("GET", restUrl)
        cy.get(".spectrum-Tabs-itemLabel").contains("Transformer").click()
        // Get Transformer Function from file
        cy.readFile("cypress/support/queryLevelTransformerFunction.js").then((transformerFunction) => {
          cy.get(".CodeMirror textarea")
          // Highlight current text and overwrite with file contents
          .type(Cypress.platform === 'darwin' ? '{cmd}a' : '{ctrl}a', { force: true })
          .type(transformerFunction, { parseSpecialCharSequences: false })
        })
        // Send Query
        cy.intercept('**/queries/preview').as('query')
        cy.get(".spectrum-Button").contains("Send").click({ force: true })
        cy.wait("@query")
        // Assert against Status Code, body, & body rows
        cy.get("@query").its('response.statusCode')
        .should('eq', 200)
        cy.get("@query").its('response.body').should('not.be.empty')
        cy.get("@query").its('response.body.rows').should('not.be.empty')
      })
        
    it("should add data to the previous query", () => {
      // Add REST datasource - contains API for breweries
      const datasource = "REST"
      const restUrl = "https://api.openbrewerydb.org/breweries"
      cy.selectExternalDatasource(datasource)
      cy.createRestQuery("GET", restUrl)
      cy.get(".spectrum-Tabs-itemLabel").contains("Transformer").click()
      // Get Transformer Function with Data from file
      cy.readFile("cypress/support/queryLevelTransformerFunctionWithData.js").then((transformerFunction) => {
        //console.log(transformerFunction[1])
        cy.get(".CodeMirror textarea")
        // Highlight current text and overwrite with file contents
        .type(Cypress.platform === 'darwin' ? '{cmd}a' : '{ctrl}a', { force: true })
        .type(transformerFunction, { parseSpecialCharSequences: false })
      })
      // Send Query
      cy.intercept('**/queries/preview').as('query')
      cy.get(".spectrum-Button").contains("Send").click({ force: true })
      cy.wait("@query")
      // Assert against Status Code, body, & body rows
      cy.get("@query").its('response.statusCode')
      .should('eq', 200)
      cy.get("@query").its('response.body').should('not.be.empty')
      cy.get("@query").its('response.body.rows').should('not.be.empty')
    })
    
    it("should run an invalid query within the transformer section", () => {
      // Add REST datasource - contains API for breweries
      const datasource = "REST"
      const restUrl = "https://api.openbrewerydb.org/breweries"
      cy.selectExternalDatasource(datasource)
      cy.createRestQuery("GET", restUrl)
      cy.get(".spectrum-Tabs-itemLabel").contains("Transformer").click()
      // Clear the code box and add "test"
      cy.get(".CodeMirror textarea")
      .type(Cypress.platform === 'darwin' ? '{cmd}a' : '{ctrl}a', { force: true })
      .type("test")
      // Run Query and intercept
      cy.intercept('**/preview').as('queryError')
      cy.get(".spectrum-Button").contains("Send").click({ force: true })
      cy.wait("@queryError")
      cy.wait(500)
      // Assert against message and status for the query error
      cy.get("@queryError").its('response.body').should('have.property', 'message', "test is not defined")
      cy.get("@queryError").its('response.body').should('have.property', 'status', 400)
    })
    
    it("should run an invalid query via POST request", () => {
      // POST request with transformer as null
      cy.request({method: 'POST',
      url: `${Cypress.config().baseUrl}/api/queries/`,
      body: {fields : {"headers":{},"queryString":null,"path":null},
      parameters : [],
      schema : {},
      name : "test",
      queryVerb : "read",
      transformer : null,
      datasourceId: "test"},
      // Expected 400 error - Transformer must be a string
      failOnStatusCode: false}).then((response) => {
        expect(response.status).to.equal(400)
        expect(response.body.message).to.include('Invalid body - "transformer" must be a string')
      })
    })
    
    it("should run an empty query", () => {
      // POST request with Transformer as an empty string
      cy.request({method: 'POST',
      url: `${Cypress.config().baseUrl}/api/queries/preview`,
      body: {fields : {"headers":{},"queryString":null,"path":null},
      queryVerb : "read",
      transformer : "",
      datasourceId: "test"},
      // Expected 400 error - Transformer is not allowed to be empty
      failOnStatusCode: false}).then((response) => {
        expect(response.status).to.equal(400)
        expect(response.body.message).to.include('Invalid body - "transformer" is not allowed to be empty')
      })
    })
  })
})