test(dwi): Validate expected bval/bvec parses

Author: effigies

src/files/dwi.test.ts

@@ -0,0 +1,35 @@
+import { assertEquals } from '@std/assert'
+
+import { parseBvalBvec } from './dwi.ts'
+
+Deno.test('Test bval/bvec parsing', async (t) => {
+  await t.step('Load 3 bvals', async () => {
+    const bvals = parseBvalBvec('0 1 2 \n')  // Typically ends with " \n"
+    assertEquals(bvals, [['0', '1', '2']])
+  })
+  await t.step('Load 3 bvals - missing newline', async () => {
+    const bvals = parseBvalBvec('0 1 2 ')
+    assertEquals(bvals, [['0', '1', '2']])
+  })
+  await t.step('Load 3 bvals - no spaces', async () => {
+    const bvals = parseBvalBvec('0 1 2')
+    assertEquals(bvals, [['0', '1', '2']])
+  })
+  await t.step('Load 3 bvecs', async () => {
+    const bvecs = parseBvalBvec('0 1 2 \n0 1 2 \n0 1 2 \n')
+    assertEquals(bvecs, [['0', '1', '2'], ['0', '1', '2'], ['0', '1', '2']])
+  })
+  await t.step('Load 3 bvals - missing newline', async () => {
+    const bvecs = parseBvalBvec('0 1 2 \n0 1 2 \n0 1 2 ')
+    assertEquals(bvecs, [['0', '1', '2'], ['0', '1', '2'], ['0', '1', '2']])
+  })
+  await t.step('Load 3 bvals - no spaces', async () => {
+    const bvecs = parseBvalBvec('0 1 2\n0 1 2\n0 1 2\n')
+    assertEquals(bvecs, [['0', '1', '2'], ['0', '1', '2'], ['0', '1', '2']])
+  })
+  await t.step('Load 3 bvals - no spaces, missing newline', async () => {
+    const bvecs = parseBvalBvec('0 1 2\n0 1 2\n0 1 2')
+    assertEquals(bvecs, [['0', '1', '2'], ['0', '1', '2'], ['0', '1', '2']])
+  })
+})
+