[#1220] Cypress: test ramp chart in zoom view

frontend/cypress/tests/zoomView/zoomView_rampChart.js

@@ -0,0 +1,293 @@
+describe('show ramp chart for period', () => {
+  // Assumptions: The commit messages on the zoom view are
+  // correctly filtered according to the selected period.
+  it('show ramp chart for all commits by default', () => {
+    // open the commit panel
+    cy.get('.icon-button.fa-list-ul')
+      .should('be.visible')
+      .first()
+      .click();
+
+    // ramp chart should be visible
+    cy.get('#tab-zoom > .ramp')
+      .should('be.visible');
+
+    // ramp chart should have the same number of slices as commits
+    cy.get('#tab-zoom .commit-message')
+      .its('length').then(($length) => {
+        cy.get('#tab-zoom .ramp .ramp__slice')
+          .should('have.length', $length);
+      });
+  });
+
+  // Assumptions: The commit messages on the zoom view are
+  // correctly filtered according to the selected period.
+  it('show ramp chart for selected commits when date range changed', () => {
+    // change since date
+    cy.get('input[name="since"]:visible')
+      .type('2018-06-10');
+
+    // change until date
+    cy.get('input[name="until"]:visible')
+      .type('2019-06-10');
+
+    // open the commit panel
+    cy.get('.icon-button.fa-list-ul')
+      .should('be.visible')
+      .first()
+      .click();
+
+    // ramp chart should be visible
+    cy.get('#tab-zoom > .ramp')
+      .should('be.visible');
+
+    // ramp chart should have the same number of slices as commits
+    cy.get('#tab-zoom .commit-message')
+      .its('length').then(($length) => {
+        cy.get('#tab-zoom .ramp .ramp__slice')
+          .should('have.length', $length);
+      });
+  });
+
+  // Assumptions: The commit messages on the zoom view are
+  // correctly filtered according to the selected period.
+  it('show ramp chart for selected commits when zooming', () => {
+    const zoomKey = Cypress.platform === 'darwin' ? '{meta}' : '{ctrl}';
+
+    // zoom into ramp on summary panel
+    cy.get('body').type(zoomKey, { release: false })
+      .get('#summary-charts .summary-chart__ramp .ramp')
+      .first()
+      .click(10, 20)
+      .click(50, 20);
+
+    // commits panel should be visible
+    cy.get('#tab-zoom')
+      .should('be.visible');
+
+    // ramp chart should be visible
+    cy.get('#tab-zoom > .ramp')
+      .should('be.visible');
+
+    // ramp chart should have the same number of slices as commits
+    cy.get('#tab-zoom .commit-message')
+      .its('length').then(($length) => {
+        cy.get('#tab-zoom .ramp .ramp__slice')
+          .should('have.length', $length);
+      });
+  });
+
+  // Assumptions: The first author on the summary panel
+  // should be 'eugenepeh'.
+  it('ramps should be between start date and end date', () => {
+    // change since date
+    cy.get('input[name="since"]:visible')
+      .type('2018-06-10');
+
+    // change until date
+    cy.get('input[name="until"]:visible')
+      .type('2019-06-10');
+
+    // open the commit panel
+    cy.get('.icon-button.fa-list-ul')
+      .should('be.visible')
+      .first()
+      .click();
+
+    // first ramp should be for commit after start date
+    cy.get('#tab-zoom .ramp .ramp__slice')
+      .last()
+      .invoke('attr', 'title')
+      .should('eq', '[2018-06-12] Setup AppVeyor CI (#142): +19 -0 lines ');
+
+    // last ramp should be for commit before end date
+    cy.get('#tab-zoom .ramp .ramp__slice')
+      .first()
+      .invoke('attr', 'title')
+      .should('eq', '[2019-03-25] [#622] CsvParser#parse: fix error handling of `processLine` (#623): +30 -10 lines ');
+  });
+
+  // Assumptions: The first author on the summary panel
+  // should be 'eugenepeh'.
+  it('ramp should have expected properties', () => {
+    // change until date
+    cy.get('input[name="until"]:visible')
+      .type('2019-06-10');
+
+    // open the commit panel
+    cy.get('.icon-button.fa-list-ul')
+      .should('be.visible')
+      .first()
+      .click();
+
+    // last ramp should have expected z-index
+    cy.get('#tab-zoom .ramp .ramp__slice')
+      .first()
+      .should('have.css', 'z-index', '39');
+
+    // last ramp should have expected width
+    cy.get('#tab-zoom .ramp .ramp__slice')
+      .first()
+      .should('have.css', 'border-left-width', '7px');
+  });
+
+  // Assumptions: The second author on the summary panel
+  // should be 'jamessspanggg'.
+  it('deletes commit ramp should have expected properties', () => {
+    // change since date
+    cy.get('input[name="since"]:visible')
+      .type('2019-07-16');
+
+    // change until date
+    cy.get('input[name="until"]:visible')
+      .type('2019-07-29');
+
+    // open the commit panel
+    cy.get('.icon-button.fa-list-ul')
+      .should('be.visible')
+      .eq(1)
+      .click();
+
+    // deletes commit ramp should have expected color
+    cy.get('[title="[2019-07-24] [#828] Revert \\"v_summary.js: remove redundant calls '
+     + 'to getFiltered() (#800)\\" (#832): +0 -9 lines "]')
+      .eq(1)
+      .should('have.class', 'ramp__slice')
+      .should('have.css', 'border-bottom', '48px solid rgba(244, 67, 54, 0.7)');
+  });
+
+  // Assumptions: The first author on the summary panel
+  // should be 'eugenepeh'.
+  it('merge commit ramp should have expected properties', () => {
+    // change until date
+    cy.get('input[name="until"]:visible')
+      .type('2024-03-04');
+
+    // open the commit panel
+    cy.get('.icon-button.fa-list-ul')
+      .should('be.visible')
+      .first()
+      .click();
+
+    // merge commit ramp should have expected color
+    cy.get('#tab-zoom .ramp .ramp__slice')
+      .eq(1)
+      .then(($el) => $el.css('border-bottom'))
+      .then((border1) => {
+        cy.get('#tab-zoom .ramp .ramp__slice')
+          .first()
+          .then(($el) => $el.css('border-bottom'))
+          .then((border2) => {
+            expect(border1).to.be.eq(border2);
+          });
+      });
+  });
+
+  // Assumptions: The first author on the summary panel
+  // should be 'eugenepeh'.
+  it('ramps from different days should have expected relative properties', () => {
+    // change until date
+    cy.get('input[name="until"]:visible')
+      .type('2019-06-10');
+
+    // open the commit panel
+    cy.get('.icon-button.fa-list-ul')
+      .should('be.visible')
+      .first()
+      .click();
+
+    // last 2 ramps should have expected relative z-indices
+    cy.get('#tab-zoom .ramp .ramp__slice')
+      .first()
+      .then(($el) => $el.css('z-index'))
+      .then(parseInt) // get 1st z-index
+      .then((index1) => {
+        cy.get('#tab-zoom .ramp .ramp__slice')
+          .eq(1)
+          .then(($el) => $el.css('z-index'))
+          .then(parseInt) // get 2nd z-index
+          .then((index2) => {
+            expect(index1).to.be.gt(index2);
+          });
+      });
+
+    // last 2 ramps should have expected relative distances from the right
+    cy.get('#tab-zoom .ramp .ramp__slice')
+      .first()
+      .then(($el) => $el.css('right'))
+      .then(parseFloat) // get 1st distance
+      .then((distance1) => {
+        cy.get('#tab-zoom .ramp .ramp__slice')
+          .eq(1)
+          .then(($el) => $el.css('right'))
+          .then(parseFloat) // get 2nd distance
+          .then((distance2) => {
+            expect(distance1).to.be.lt(distance2);
+          });
+      });
+  });
+
+  // Assumptions: The first author on the summary panel
+  // should be 'eugenepeh'.
+  it('ramps from the same day should have expected relative properties', () => {
+    // change until date
+    cy.get('input[name="until"]:visible')
+      .type('2023-03-04');
+
+    // open the commit panel
+    cy.get('.icon-button.fa-list-ul')
+      .should('be.visible')
+      .first()
+      .click();
+
+    // last 2 ramps should have expected relative z-indices
+    cy.get('#tab-zoom .ramp .ramp__slice')
+      .first()
+      .then(($el) => $el.css('z-index'))
+      .then(parseInt) // get 1st z-index
+      .then((index1) => {
+        cy.get('#tab-zoom .ramp .ramp__slice')
+          .eq(1)
+          .then(($el) => $el.css('z-index'))
+          .then(parseInt) // get 2nd z-index
+          .then((index2) => {
+            expect(index1).to.be.eq(index2);
+          });
+      });
+
+    // last 2 ramps should have expected relative distances from the right
+    cy.get('#tab-zoom .ramp .ramp__slice')
+      .first()
+      .then(($el) => $el.css('right'))
+      .then(parseFloat) // get 1st distance
+      .then((distance1) => {
+        cy.get('#tab-zoom .ramp .ramp__slice')
+          .eq(1)
+          .then(($el) => $el.css('right'))
+          .then(parseFloat) // get 2nd distance
+          .then((distance2) => {
+            expect(distance1).to.be.gt(distance2);
+          });
+      });
+  });
+
+  // Assumptions: The first author on the summary panel
+  // should be 'eugenepeh'.
+  it('ramp should link to commit webpage', () => {
+    // change until date
+    cy.get('input[name="until"]:visible')
+      .type('2019-06-10');
+
+    // open the commit panel
+    cy.get('.icon-button.fa-list-ul')
+      .should('be.visible')
+      .first()
+      .click();
+
+    // last ramp should have expected link
+    cy.get('#tab-zoom .ramp .ramp__slice')
+      .first()
+      .invoke('attr', 'href')
+      .should('eq', 'https://github.com/reposense/RepoSense/commit/19e32944d4c67ed0b6bdc5697016536cc9e17ed9');
+  });
+});